The Nanosats Database: The World’s Most Complete Record of Small Satellites

Key Takeaways

• The Nanosats Database tracks over 4,800 nanosatellites from 94 countries and 802 companies.
• Erik Kulu has maintained this free resource since 2014, presenting findings at international conferences.
• Forecasts project approximately 1,900 new nanosatellites will launch between 2024 and 2029.

A Database Built on a Conviction

The Nanosats Database calls itself the world’s largest database of nanosatellites. As of January 1, 2026, it tracks more than 4,800 nanosatellites and CubeSats from around the world, cataloguing missions ranging from single-unit university experiments to commercial constellations comprising dozens or hundreds of spacecraft. Created and maintained by Erik Kulu, an Estonian space industry analyst, the site has been freely available to researchers, engineers, journalists, and policymakers since 2014.

The conviction behind it is stated plainly on the homepage: the big future of nanosatellites is still to come. That’s not just promotional language. Kulu has argued this position consistently across years of conference presentations and public commentary, and the data supports his view. The number of nanosatellites launched per year has risen steeply over the past decade, and there are now 802 companies tracked in the database, spanning platform manufacturers, component suppliers, launch service providers, and constellation operators.

The database doesn’t limit itself to spacecraft that have already reached orbit. It deliberately includes planned missions and cancelled ones too, because understanding what was attempted, even when it never flew, illuminates market trends far better than counting only successful launches. That methodological choice is worth understanding clearly. The database is designed not just as a historical ledger but as an analytical tool for understanding where the industry is heading.

As of January 1, 2026, the database recorded 3,209 nanosatellites launched to orbit, including 2,973 CubeSats and 99 PocketQubes. Eighteen of those spacecraft have traveled beyond Earth orbit as interplanetary CubeSats. Kulu notes a forecast of approximately 1,900 additional nanosatellites launching between 2024 and 2029, a figure derived from his own modeling and historical trend analysis.

That forecast deserves careful attention. The small satellite sector has historically been difficult to predict with precision. Companies announce ambitious constellations, then shrink, delay, or abandon them without public notice. Kulu acknowledges this directly in his methodology notes, pointing out that missions and company plans are often changed or cancelled without public announcements, which means the database tries to capture not only what has launched but also the shifting record of what was planned. Old renders and earlier versions of company plans are deliberately kept, since changes in intention are themselves informative about the industry’s dynamics.

What Exactly Gets Counted

Before the numbers mean much, the terminology needs untangling. The satellite industry uses a mass-based classification system, and “nanosatellite” has a specific technical meaning: a spacecraft weighing between 1 kilogram and 10 kilograms. That narrow definition creates problems in practice. A 1U CubeSat might weigh 0.8 kilograms, falling just below the official threshold. A 6U CubeSat could exceed 10 kilograms. And exact mass figures for many spacecraft are never made public.

The Nanosats Database resolves this by treating “nanosatellite” as a broader umbrella term. It includes all CubeSats from 0.25U to 27U, standard nanosatellites in the 1-to-10-kilogram mass range, picosatellites weighing between 100 grams and 1 kilogram, PocketQubes, TubeSats, and ThinSats. The upper limit for non-standard nanosatellite types is set at 10 kilograms, while the CubeSat format can extend to 27U, corresponding to a mass of roughly 30 to 40 kilograms. Femtosatellites, those weighing between 10 grams and 100 grams, are excluded, as are chipsats, disksats, and suborbital payloads. CubeSats bolted to rocket upper stages and not designed as independent orbiting objects are also excluded.

The broader satellite mass classification provides useful context. Large satellites weigh more than 1,000 kilograms. Medium satellites fall between 500 and 1,000 kilograms. The small satellite category, any spacecraft under 500 kilograms, subdivides into minisatellites (100 to 500 kilograms), microsatellites (10 to 100 kilograms), nanosatellites (1 to 10 kilograms), and picosatellites (100 grams to 1 kilogram). The entire CubeSat ecosystem spans a mass range of roughly 0.2 kilograms to 40 kilograms, cutting across several of these official categories at once, which is exactly why the strict definition fails in practice.

Each entry in the database represents an independently flying spacecraft, even if multiple spacecraft were deployed simultaneously from the same rocket or dispenser. There are some exceptions for tethered configurations, but the general principle is that the database counts distinct objects rather than launch events. Data runs from 1998 onward, though Kulu notes that at least 21 nanosatellites were launched in the 1960s under programs like Vanguard and the OSCAR amateur radio satellite series, along with one in 1997, none of which are included.

The CubeSat Standard and Its Origins

The CubeSat format sits at the center of the database’s activity, and its history is worth understanding. The standard was developed jointly by Jordi Puig-Suari at California Polytechnic State University (Cal Poly) and Bob Twiggs at Stanford University in the late 1990s. The idea was entirely pragmatic: create a satellite small enough that university students could build and launch one within a degree program, using commercially available electronics rather than expensive aerospace-grade components.

The reception was not warm. Twiggs recalled the early days in a 2014 interview with Spaceflight Now, noting that initial reactions from the traditional aerospace community ranged from skepticism to outright dismissal. He described critics calling it “the dumbest idea I’ve ever heard.” NASA and the military showed no interest. Early launch opportunities came through Russian providers. Lockheed Martin reportedly demanded half a million dollars just to evaluate whether flying CubeSats as secondary payloads would make economic sense. None of that stopped the standard from spreading through universities, and eventually into commercial applications.

Companies like Planet Labs, founded in 2010, built imaging constellations based on 3U CubeSat platforms and eventually launched hundreds of satellites. Spire Global, founded in 2012, used 3U CubeSats to build a weather data and ship-tracking constellation. The educational tool had become a commercial platform. Those examples are perhaps the most commonly cited, but hundreds of other commercial ventures appear in the database, representing a much broader wave of business activity that the CubeSat standard enabled.

The CubeSat Design Specification (CDS) defines a 1U CubeSat as a 10 cm × 10 cm × 11.35 cm box. A 2U doubles the height to roughly 22.70 cm. A 6U configuration, commonly used for commercial applications, measures 20 cm × 10 cm × 34.05 cm. From there, the format grows to 12U and beyond. The smallest CubeSat ever launched was a 0.25U design, and the largest was a 24U spacecraft as of January 2026.

Two deployer interface types have become standard in the market. The original design, familiar from the P-POD (Poly Picosatellite Orbital Deployer) developed at Cal Poly, uses four rails running along the corners of the spacecraft. Rocket Lab, which acquired the dispensing business previously operated by Planetary Systems Corporation (PSC), uses a tab-based system on its dispensers. Modern deployers from multiple manufacturers generally allow for larger external protrusions, higher mass per unit, and finer rail tolerances than the original standard anticipated, giving engineers more physical flexibility while remaining compatible with the basic CubeSat form factor.

Getting a CubeSat to orbit involves more complexity than the compact size might suggest. The Nanosats Database cautions that on-board flight software and mission control systems are often overlooked when teams are budgeting based on online component price lists. A second hardware set for parallel software development and operations rehearsals after launch is considered best practice. Launch costs for CubeSats are priced per unit rather than per kilogram, making the standard dollar-per-kilogram metric a misleading guide for anyone planning a small satellite mission.

The Numbers Behind the Database

The statistics assembled in the Nanosats Database paint a striking picture of how quickly small satellite activity has grown.

Ninety-four countries having placed nanosatellites into orbit is a number that deserves to be read slowly. For most of the 20th century, space access was the province of a small number of wealthy nations with the resources to sustain national space programs. CubeSats changed that arithmetic. The low cost of building a small satellite, combined with the growth of dedicated small satellite launch services and rideshare programs, brought orbital access within reach of universities in developing economies, research institutions with modest budgets, and in some cases secondary schools with extraordinary determination. The geographic spread visible in the Nanosats Database world map is one of the most compelling visual arguments that something genuinely new is happening in the space sector.

The record of 120 nanosatellites on a single rocket reflects the consolidation happening in the launch industry. Rideshare missions, where a single rocket carries dozens of small satellites from different customers sharing the launch cost, have become routine. SpaceX’s Transporter rideshare program and Rocket Lab’s Electron have made it practical to buy a seat to orbit for a comparatively modest sum. That consolidation of launch opportunities has directly enabled the kind of constellation building that commercial operators are pursuing.

The 18 interplanetary CubeSats represent a category that would have seemed implausible when Twiggs and Puig-Suari designed their first standard. CubeSats beyond Earth orbit have traveled to the Moon, accompanied deep space missions as secondary payloads, and demonstrated that miniaturized spacecraft can survive the radiation environment of interplanetary space long enough to do useful work. As of 2026, the number is still small, but the direction is clear. Kulu has surveyed this category specifically in conference papers, identifying it as an area of accelerating expansion.

PocketQubes, TubeSats, and the Smaller Formats

Ninety-nine PocketQubes in orbit by January 2026 represents real progress for a satellite format that’s still finding its commercial footing. A PocketQube is a 5-centimeter cube, roughly the size of a Rubik’s cube, and was formally announced in early 2009 at the 2nd European CubeSat Symposium. Two standards for the deployer interface have emerged: the MRFOD type, which uses a backplate system and was flown on the Morehead-Roma FemtoSat Orbital Deployer aboard UniSat-5, and a design intended to be compatible with standard 1U CubeSat dispensers, though as of early 2026 only MRFOD-type PocketQubes have achieved orbital deployment.

The motivation behind PocketQubes is easy to understand. As CubeSats became commercially competitive, the cost of building and launching them crept upward. University teams that once saw 1U CubeSats as affordable educational tools found prices rising as the standard became professionalized. Researchers at Delft University of Technology, including Jasper Bouwmeester, noted publicly that TU Delft couldn’t financially match commercial CubeSat companies backed by venture capital, and decided the answer was to go smaller rather than concede the field entirely. That reasoning is sound in principle.

Whether PocketQubes will ever replicate the commercial trajectory of CubeSats is a question that doesn’t yet have a clear answer. The format has accumulated only 99 orbital launches compared to CubeSats’ nearly 3,000. The supplier ecosystem is far thinner. And the CubeSat market benefited from decades of standard-setting, accumulated flight heritage, and component supplier development that PocketQubes are still building. Whether the economics will eventually tip in their favor, or whether the format will remain a niche educational tool, is not something the available evidence can settle with confidence.

TubeSats tell a more cautionary story. The cylindrical format, 8.9 centimeters in diameter and 12.7 centimeters long and weighing around 0.75 kilograms, was developed by Interorbital Systems and sold as kits for $8,000 apiece, including the promise of a launch opportunity. More than 100 kits were reportedly sold. But the first orbital launch was delayed by more than a decade, stranding customers and undermining the core value proposition. The Nanosats Database is direct in its assessment: unless Interorbital begins launching soon, TubeSats likely have no future. The lesson is that a cheap spacecraft is worthless if it can’t reliably get to orbit.

SunCubes, developed at Arizona State University and announced in 2016, take miniaturization to its conceptual extreme. A 1F SunCube is a 3-centimeter cube. A single 1U CubeSat could theoretically carry and deploy 27 SunCubes, driving the per-spacecraft launch cost down to roughly $3,000 at 2016 pricing. None have been launched to orbit, and as of 2025, the Nanosats Database regards orbital flight as increasingly unlikely for the format.

The Ecosystem Map

One of the most practically useful features of the Nanosats Database is its ecosystem map, which catalogs hardware suppliers and service providers across every major subsystem category in the CubeSat industry. Sometimes referred to in the industry as a spacetech map or market map, it functions as a practical directory for engineers and program managers who need to understand who makes what.

The propulsion category alone spans dozens of companies, reflecting how thoroughly the market has matured. Aurora Propulsion Technologies in Finland offers plasma brake deorbit devices alongside resistojet thrusters. Exotrail in France develops electric propulsion for small satellites. Enpulsion in Austria builds indium-fueled ion thrusters. Bradford Spaceoffers resistojet propulsion systems. The variety reflects the extent to which the CubeSat ecosystem has matured: there are multiple credible choices in nearly every subsystem category where a decade ago there might have been only one or two.

Ground station networks appear prominently on the ecosystem map. Commercial services like KSAT, Swedish Space Corporation, and Amazon Web Services Ground Station offer professional infrastructure. But community-based platforms like SatNOGS and TinyGS play a meaningful role too. SatNOGS, operated by the Libre Space Foundation, is a globally distributed network of amateur ground stations that provides tracking and telemetry reception for satellites that might otherwise go unheard. TinyGS uses low-cost LoRa-based receiver hardware to extend coverage further. Both demonstrate that the small satellite ecosystem isn’t solely commercial; there’s a substantial amateur and community dimension that contributes real analytical value.

Mission control software is well-represented. Companies like Bright Ascension in the United Kingdom, Antaris in the United States, and Spaceit in Estonia offer platforms for commanding and monitoring small satellites in orbit. D-Orbit in Italy, which operates the ION Satellite Carrier as a deployment and orbital transport platform, also provides mission control capabilities. The range of options has expanded considerably, driven by growing demand from satellite operators who need more than basic housekeeping telemetry.

The imaging and camera section is densely populated. Companies including Dragonfly Aerospace, Simera Sense, and Berlin Space Technologies supply optical imaging systems sized for CubeSat platforms. The miniaturization of optical components has been one of the key enabling technologies for commercial Earth observation constellations, allowing resolution and sensitivity levels that would once have required much larger spacecraft.

Laser communication represents an emerging category on the ecosystem map. Companies like Mynaric in Germany and Transcelestial in Singapore are developing optical communication links that offer much higher data rates than radio frequency alternatives. For Earth observation satellites that generate large volumes of imagery data, the ability to downlink via laser rather than radio could substantially reduce communication bottlenecks. The technology is still maturing, but it’s clearly moving toward operational deployment.

Quantum key distribution (QKD), a cryptographic technique that uses the properties of quantum mechanics to secure communications, appears on the ecosystem map as its own category. A small number of companies are pursuing QKD payloads for CubeSat platforms, viewing the format as a cost-effective way to demonstrate and eventually deploy quantum-secured satellite communications. It’s an early-stage category in the database, but its presence reflects the broadening application space that CubeSat advocates have long predicted.

Companies Shaping the Industry

The 802 companies tracked in the database span an enormous range of sizes, business models, and national origins. Some are publicly traded. AAC Clyde Space, listed on the Nasdaq First North Growth Market in Stockholm, offers satellite platforms and complete mission services from its bases in Sweden and the United Kingdom. GomSpace, listed on the Nasdaq First North Growth Market in Copenhagen, has been one of the most prolific CubeSat platform suppliers in the industry and has a substantial heritage of customer missions.

Others are privately held ventures at various stages of development. EnduroSat in Bulgaria offers shared satellite services alongside its hardware products, a model where customers buy payload space on an already-built satellite rather than commissioning their own spacecraft from scratch. NanoAvionics, now operating as part of the Kongsberg Group following an acquisition, develops satellite platforms in the 6U to 150-kilogram range and has accumulated significant mission flight heritage. ISISpace, based in Delft in the Netherlands, supplies complete satellite systems and has a long track record across university and commercial missions.

What the database makes visible is not just a list of companies but a geographic distribution of activity that challenges any assumption that space industry development is concentrated in a handful of Western nations. Companies from India, South Korea, Japan, Brazil, Turkey, South Africa, the Czech Republic, Poland, Slovakia, and many other countries appear throughout. India’s Dhruva Space has been building a presence in satellite platforms and ground station services. Poland’s SatRev has launched Earth observation satellites built on in-house CubeSat platforms. Bulgaria’s EnduroSat has attracted customers from across Europe and beyond.

The database also tracks the founding years of CubeSat companies, which reveals a pattern that aligns with broader trends in the new space economy. Company formation accelerated sharply around 2014 and again in the early 2020s, corresponding to two waves of investment and commercial interest in small satellites. That founding-year data helps contextualize the 802-company figure: it’s not a static count but the product of a dynamic industry where new entrants continue to appear even as earlier ventures consolidate or exit.

Constellations: Where the Commercial Stakes Are Highest

The constellation section of the Nanosats Database is where the largest commercial ambitions become most apparent. Earth observation constellations occupy the most prominent category. Planet Labs, despite navigating a financially difficult period after going public, operates the largest Earth imaging constellation in history. Spire Global collects weather data, GPS radio occultation measurements, and ship-tracking information from its constellation of 3U CubeSats. BlackSky operates a constellation of small satellites targeting high-revisit Earth observation for commercial and government customers.

Communications constellations represent a distinct and rapidly evolving segment. Machine-to-machine (M2M) communication and IoT data relay are served by companies like Astrocast, which has launched a constellation in the L-band targeting asset tracking and environmental monitoring applications. Automatic Identification System (AIS) vessel tracking has been another commercial growth area, with companies including Spire Global providing maritime tracking services from small satellite constellations deployed over several years.

Weather data has emerged as a surprisingly commercially viable application for CubeSats. Spire’s GPS radio occultation measurements feed into numerical weather prediction models operated by national meteorological agencies. Tomorrow.iohas been exploring satellite-based weather sensing at small scales. The potential market for improved weather data, particularly in data-sparse regions of the globe, has attracted investment that wouldn’t have seemed plausible in the CubeSat standard’s first decade.

RF spectrum monitoring and geolocation represent a newer category. HawkEye 360, which operates a constellation of 6U CubeSats, can detect and geolocate radio frequency emissions from ships, aircraft, and ground-based sources. That capability has applications for maritime domain awareness, spectrum management, and national security customers. The fact that a company can build a viable RF monitoring business on CubeSat-sized spacecraft would have been hard to imagine in the early 2000s.

Greenhouse gas monitoring and emissions tracking is among the most recent commercial categories to attract significant interest. GHGSat has demonstrated that satellite-based measurements of methane and carbon dioxide can be commercially valuable, particularly as regulatory and voluntary carbon markets develop and demand better emissions verification data. The Nanosats Database includes this as part of its ecosystem map, reflecting the expanding range of applications that nanosatellites now serve.

The Question of Orbital Congestion

The growth documented by the Nanosats Database brings a challenge that the industry hasn’t yet resolved. Three thousand two hundred and nine nanosatellites launched to orbit represents a significant addition to orbital populations, and the forecast of roughly 1,900 more between 2024 and 2029 will add to it further. Orbital debris and the long-term sustainability of low Earth orbit have become serious policy concerns, and small satellites are a substantial part of the problem.

The database tracks orbital lifetimes and operational lifetimes as distinct metrics. A spacecraft might fall silent after a few months in orbit, whether due to equipment failure or intentional end-of-mission, but continue as an inert object occupying orbital space for years afterward. At low altitudes, atmospheric drag eventually pulls spacecraft back into the atmosphere, but this process takes years at altitudes above 400 kilometers and considerably longer at 500 or 600 kilometers.

The sector’s self-regulatory response to orbital congestion has been inadequate. The Inter-Agency Space Debris Coordination Committee (IADC) recommends deorbiting spacecraft within 25 years of end of mission, but compliance is uneven and that guideline was established when annual launch rates were far lower. The surge in small satellite launches that Kulu’s database documents makes a strong case that binding regulatory frameworks are needed rather than voluntary guidelines alone. The counter-argument, that atmospheric drag clears debris naturally and that most CubeSats are too small to pose a serious collision risk to larger infrastructure, is not entirely wrong, but it understates the cumulative risk as constellation sizes grow into the hundreds and thousands of spacecraft. A debris environment that’s manageable today may not remain so as the orbital population continues to grow at the rate the forecast implies.

Several companies on the ecosystem map are specifically addressing deorbit and end-of-life disposal. Aurora Propulsion Technologies includes plasma brake systems in its product line specifically to accelerate deorbit. D-Orbit operates the ION Satellite Carrier partly as a responsible orbit management platform. These technologies exist, and they’re getting better. The challenge is making their use mandatory rather than optional, which requires international regulatory coordination that has consistently moved more slowly than the launch cadence.

Launch Trends and What the Charts Show

The figures section of the Nanosats Database provides some of the most widely reproduced charts in the small satellite industry. Kulu offers them in multiple formats including white-background, black-background, and transparent versions alongside PDF and SVG variants, specifically to make them usable in reports, presentations, and publications. The terms of use are generous: free to use with attribution to Erik Kulu and the Nanosats Database.

The yearly launch figures tell a story of clear acceleration. The first dedicated CubeSat launches took place in 2003, when a batch of university satellites rode a Rockot rocket into orbit. Volumes grew slowly through the 2000s, then began climbing steeply after 2012 as commercial operators entered the market. The years 2021 through 2023 saw particularly high launch volumes, driven by Planet Labs’ continued constellation expansion and a broad wave of new commercial deployments.

Charts showing launches broken down by organization type reveal the shift from academic to commercial activity over time. Early figures were dominated by universities and research institutions. By the mid-2010s, commercial companies had overtaken academic institutions as the dominant launch customer category. Government agencies have maintained a steady presence throughout, using CubeSats for technology demonstration, Earth observation, and science missions. The running totals chart shows the cumulative effect of this acceleration: it took more than a decade to launch the first 500 nanosatellites, and substantially less time to add each subsequent 500 after that.

The launch-by-launcher charts reflect a changing market. Russian vehicles including the Dnepr and Soyuz dominated early rideshare missions. SpaceX’s Falcon 9, with its high capacity and frequent launch cadence, became central to rideshare from the mid-2010s onward. Rocket Lab’s Electron provided a dedicated small satellite launch option from 2018. India’s ISRO vehicles have been meaningful contributors to total launch figures, particularly through multi-satellite deployment missions where Indian and international secondary payloads share a primary mission launch.

Erik Kulu’s Academic Contributions

The Nanosats Database is one part of Kulu’s contribution to the small satellite field. He has been a regular presenter at the International Astronautical Congress (IAC), the annual gathering of the global space community, and at the Small Satellite Conference hosted by Utah State University.

His 2024 IAC paper, “CubeSats and Nanosatellites – 2024 Statistics, Forecast and Reliability,” presented the database’s latest statistical analysis alongside updated launch forecasts and reliability assessments. Reliability receives less attention than launch statistics in public reporting but matters greatly to mission planners and investors. The small satellite field has historically seen higher failure rates than larger, more expensive spacecraft, and understanding those failure modes is practically important. A second paper at IAC 2024 covered satellite constellations more broadly, examining trends and economic sustainability across the wider small satellite constellation market.

A 2022 paper at the Small Satellite Conference evaluated the track record of nanosatellite launch forecasts, testing how well previous predictions had held up against actual launch figures. That kind of retrospective accuracy analysis is less common in the industry than forward-looking projections, but it functions as a useful check on forecasting overconfidence. Earlier CubeSat predictions substantially underestimated actual launch volumes, while later forecasts have been more accurate, a pattern that suggests the analytical frameworks have improved as the industry has matured.

Kulu’s work on small launchers, documented in IAC papers from 2021, 2023, and 2025, tracks the dedicated small satellite launch vehicle industry alongside the nanosatellite database. The 2025 paper addresses a market that has seen considerable turbulence: companies including Virgin Orbit ceased operations after a failed launch attempt from a 747 aircraft in January 2023, others have encountered significant delays, and the viable commercial small launch vehicle market has proven more competitive and less immediately profitable than early investors anticipated. These papers sit at the intersection of the Nanosats Database data and the broader commercial space economy that the NewSpace Index site covers.

Sister Websites and the Broader Mission

The Nanosats Database has two companion sites. Factories in Space covers in-space manufacturing, a field that encompasses both the production of materials and goods in microgravity environments and the broader concept of space-based industrial infrastructure. Kulu has presented in-space economy statistics derived from this database at IAC since at least 2021.

NewSpace Index (newspace.im) serves as a directory and database of the broader new space economy, covering launch vehicles, satellite constellations, and space companies across categories beyond the nanosatellite-specific scope of the primary database. Together, the three sites form an interconnected research infrastructure covering much of the commercial space sector.

The sources section of the Nanosats Database is transparent about its inputs. Launch schedules come from resources including Gunter’s Space Page, a long-running amateur launch tracking site. Spacecraft tracking data comes from Space-Track, the official US government orbital tracking database maintained by the US Space Force’s 18th Space Control Squadron. Amateur radio operators play a notable role: the database acknowledges specific contributors and networks including DK3WN, JA0CAW, SatNOGS, and TinyGS, whose telemetry reception confirms spacecraft status in orbit. Jonathan McDowell’s space activity reports and master satellite list are cross-referenced for verification.

Kulu is candid about limitations. There are a handful of US and Chinese nanosatellites about which almost nothing is publicly known. A large number of CubeSats have very limited public information available after launch. The database is a best-effort compilation rather than a complete official record. Errors are possible, and corrections are welcomed.

Understanding the Forecasting Methodology

The forecast of approximately 1,900 nanosatellites launching between 2024 and 2029 is one of the most cited figures from the database. Understanding what it represents prevents misinterpretation. It’s a projection based on announced plans, historical trend analysis, and Kulu’s judgment about which planned missions are likely to proceed. It’s not a commercial market research forecast produced by a firm that has surveyed constellation operators or analyzed capital flows in depth.

Kulu’s 2022 Small Satellite Conference paper on past forecast accuracy is instructive. Early projections for nanosatellite launch volumes substantially underestimated actual activity. Later forecasts have been more accurate but still face the fundamental challenge that constellation deployment schedules slip, funding conditions change, and regulatory issues cause unexpected delays. The 1,900-spacecraft forecast carries genuine uncertainty, and informed observers should treat it as a directional indicator rather than a precise prediction.

The relationship between the total database count of over 4,800 nanosatellites and the 3,209 that have actually launched reflects the volume of planned and cancelled missions in the database. More than 1,600 nanosatellites in the database have either been planned but not yet launched or were planned but ultimately never flew. That ratio is itself an interesting data point about the industry’s ambition relative to execution, and it’s one that the database’s deliberate inclusion of cancelled missions makes visible in a way that a launch-only record would not.

How the Resource Gets Used

Researchers and journalists cite the Nanosats Database’s figures routinely. Launch charts appear in market research reports from space industry analysts. Conference presenters use constellation figures to contextualize their own missions. Policy discussions about orbital debris draw on the launch trend data. Academic papers studying the commercialization of space or the global geography of space activity reference the country-level statistics.

The database serves different purposes depending on who’s looking. An investor evaluating a nanosatellite startup might use the company database and ecosystem map to understand market structure and competitive context. An engineer sourcing components for a CubeSat mission would likely spend time in the ecosystem map working through specific subsystem categories. A policy analyst examining space sustainability issues would gravitate toward the launch trend figures and orbital lifetime data. A journalist covering the space economy might pull the country count or total launch figures for context.

The terms of use are permissive. Figures can be used freely with credit to Erik Kulu and the Nanosats Database. Kulu explicitly invites collaboration in what he describes as “win-win scenarios,” a phrase that covers everything from data contributions to joint research. The database’s maintenance costs are supported partly through a voluntary PayPal donation link, an arrangement that underscores its character as a public interest resource rather than a commercial subscription product. That model, free access with voluntary support, has sustained the database for over a decade and shows no signs of changing.

Summary

The Nanosats Database has become, over more than a decade of continuous maintenance, something more than a reference tool. It’s a historical archive of an industry’s evolution, one that preserves the ambitions, attempts, and failures alongside the successes. That archival quality, the deliberate retention of cancelled missions and superseded plans, gives the database a depth that a simple launch log can’t match. Historians of the commercial space economy will find in it a detailed record of how an industry formed, which companies tried what, and which bets paid off.

Erik Kulu built it from a personal conviction that the era of nanosatellites has barely started, and the data he has assembled makes a credible case for that view. Three thousand two hundred and nine nanosatellites in orbit. Ninety-four countries represented. Eight hundred and two companies tracked. A forecast projecting 1,900 more spacecraft by 2029. These figures describe an industry that has already changed the economics of access to space, and one that hasn’t yet reached anything like the scale its advocates believe is possible.

The orbital congestion challenge is real, the forecasting uncertainty is genuine, and not every company in the database’s 802-strong roster will survive to see the next decade. But the trajectory documented across the database’s charts and figures points consistently in one direction, and the resource Kulu has created will remain the most complete public record of where that trajectory began.

Appendix: Top 10 Questions Answered in This Article

What is the Nanosats Database?

The Nanosats Database is a free, publicly accessible resource created and maintained by Erik Kulu that catalogs nanosatellites, CubeSats, and related spacecraft from around the world. As of January 1, 2026, it tracks more than 4,800 nanosatellites including launched, planned, and cancelled missions. It is used by researchers, engineers, journalists, and policymakers interested in the small satellite sector.

Who created the Nanosats Database and when?

The Nanosats Database was created by Erik Kulu, an Estonian space industry analyst, and has been online since 2014. Kulu updates the database roughly every three to four months and presents analysis derived from it at the International Astronautical Congress and the Small Satellite Conference at Utah State University. The database has grown continuously in scope since its founding.

How many nanosatellites have been launched as of early 2026?

As of January 1, 2026, the Nanosats Database records 3,209 nanosatellites launched to orbit, including 2,973 CubeSats and 99 PocketQubes. Eighteen CubeSats have traveled beyond Earth orbit on interplanetary missions. The database forecasts approximately 1,900 additional nanosatellites launching between 2024 and 2029.

What is a CubeSat and who invented the standard?

A CubeSat is a type of small satellite defined by a standardized modular unit called the 1U, which measures 10 cm × 10 cm × 11.35 cm. The CubeSat standard was developed in the late 1990s by Jordi Puig-Suari at California Polytechnic State University and Bob Twiggs at Stanford University as an educational tool for university satellite programs. It has since become a commercial platform used by companies including Planet Labs and Spire Global.

How many countries have nanosatellites in orbit?

As of January 1, 2026, the Nanosats Database records nanosatellites from 94 countries in orbit. This breadth reflects how the low cost of CubeSat development and the growth of rideshare launch services have extended orbital access far beyond the historically dominant spacefaring nations, reaching universities and institutions in developing economies worldwide.

What is the Nanosats Database ecosystem map?

The ecosystem map is a section of the Nanosats Database that catalogs hardware suppliers and service providers for the CubeSat industry, organized by subsystem category. It covers propulsion systems, ground station networks, imaging sensors, communication hardware, power systems, on-board computers, attitude control systems, deployers, and launch services, among other categories. It tracks over 800 companies and functions as a practical industry directory.

What is a PocketQube?

A PocketQube is a miniaturized satellite format using a 5-centimeter cube as its base unit, making it substantially smaller than a standard CubeSat. The concept was announced in 2009 at the 2nd European CubeSat Symposium. As of early 2026, 99 PocketQubes had been launched to orbit, and the format is used primarily for educational missions, though commercial applications have been explored.

What are interplanetary CubeSats?

Interplanetary CubeSats are CubeSat-format spacecraft that travel beyond Earth orbit to destinations including the Moon and other parts of the solar system. As of January 1, 2026, the Nanosats Database records 18 such spacecraft. They represent the most ambitious application of the CubeSat format, demonstrating that miniaturized spacecraft can survive and operate in deep space radiation environments.

What publications has Erik Kulu produced from the database?

Kulu has presented at the International Astronautical Congress and the Small Satellite Conference at Utah State University multiple times, covering nanosatellite statistics and forecasts, satellite constellation trends, small launch vehicle surveys, and in-space economy overviews. His most recent paper was presented at IAC 2025 and covers the small launcher market and competitive dynamics. Earlier papers include a 2022 retrospective on nanosatellite launch forecast accuracy.

How does the Nanosats Database handle uncertain or incomplete data?

The database acknowledges frankly that a substantial portion of its data is incomplete or uncertain, particularly for a handful of US and Chinese nanosatellites with almost no public information available. Many CubeSats have limited public information after launch, and mission plans are often changed or cancelled without public announcement. Kulu addresses this by retaining records of older plans and historical renders, noting that changes in intention are as analytically useful as outcomes, and by welcoming corrections from users who identify errors.