How Does the OECD Define the Space Economy Value Chain?

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Key Takeaways

• The OECD divides the space economy value chain into upstream, downstream, and space-related segments.
• Upstream activities build and launch orbital hardware, and downstream services capture most sector revenue.
• Technology transfers, spin-offs, and national satellite accounts measure space value across the wider economy.

Why the OECD Built a Standardized Space Value Chain

In February 2012, the Organisation for Economic Co-operation and Development (OECD) published its first statistical handbook to bring consistent measurement to the global space economy value chain. National statistical offices previously struggled to compare space expenditures and commercial revenues because international industrial classifications scattered space work across aerospace manufacturing, telecommunications, defense procurement, software publishing, and scientific research. The OECD Space Forum addressed that fragmentation by releasing the second edition in July 2022 and expanding its empirical tracking in the 2026 OECD Space Economy report in September 2026.

Under the harmonized definition presented in the 2026 OECD reader’s guide, the space economy encompasses the full range of activities and the use of resources that create and provide value and benefits to human beings in the course of exploring, understanding, managing, and utilizing space. That formulation intentionally looks beyond rocket factories and government launchpads. It captures public research laboratories, component vendors, spacecraft integrators, orbital operators, ground network providers, software analytics firms, and terrestrial businesses that depend on satellite capability. New Space Economy’s analysis of the OECD and its relevance explains how this shared conceptual boundary allows governments in the United States, Canada, the United Kingdom, Australia, Japan, and the European Union to benchmark industrial performance on a common basis.

A definition becomes an analytical tool only when paired with a structural taxonomy. The OECD Space Forum and the European Space Agency (ESA) divide the space economy value chain into three interconnected segments: the upstream segment, the downstream segment, and the space-related segment. Together, those three tiers trace how scientific knowledge and raw materials become orbital infrastructure, how orbital infrastructure generates signals and data, and how terrestrial industries convert those outputs into commercial products and societal welfare.

New Space Economy’s feature on how the space value chain works demonstrates that rocket launches sit near the middle of this sequence rather than at the finish line. Upstream engineering creates the technical capacity to reach and operate in space. Downstream operations and data services deliver the connectivity, positioning, and environmental intelligence that enterprise and consumer buyers actually pay for. Space-related spin-offs and enabling financial services extend those capabilities into medical technology, clean energy, industrial manufacturing, and risk management.

The table below summarizes the three segments that define the OECD space economy value chain.

How the Space Economy Value Chain Separates Supply from Value

Analysts and policymakers frequently confuse a supply chain with a value chain when evaluating space industrial strategy. A supply chain tracks the physical and contractual flow of production inputs, including aluminum alloys, radiation-hardened semiconductors, solar cells, propellants, attitude-control thrusters, and environmental test services. A value chain maps where economic utility, customer willingness to pay, and operating margin are generated across the life of a system. New Space Economy’s explainer on supply chains versus value chains highlights why this distinction matters in space markets, where the cost of building hardware rarely mirrors the distribution of long-term revenue.

Consider a commercial Earth observation satellite that costs $50 million to manufacture and launch. The supply chain ends once the spacecraft is integrated, launched, and commissioned in low Earth orbit. The space economy value chain continues for five to 10 years as the operator downlinks imagery, calibrates spectral bands, runs automated change-detection models, and sells flood-risk assessments to property insurers or crop-yield forecasts to agricultural cooperatives. The largest cumulative revenue often accrues to the downstream organizations that package raw sensor measurements into recurring software subscriptions.

In the second edition of the OECD handbook, the OECD paired its three-segment value chain with the goods-and-services classification introduced in 2020 by the U.S. Bureau of Economic Analysis (BEA). This pairing resolves a longstanding statistical problem. When a satellite operator purchases a launch from a rocket provider, counting the full contract value of the rocket alongside the full subscription revenue of the satellite operator can double count the underlying hardware input unless analysts separate gross output from value added.

Technical system architecture offers a complementary lens for tracing value creation. New Space Economy’s overview of space system segments identifies five operational links: the launch segment, the space segment, the link segment, the ground segment, and the user segment. Mapping those five engineering segments onto the three OECD economic tiers clarifies how technical handoffs correspond to commercial market boundaries.

Under that mapping, spacecraft manufacturing, launch vehicle production, and initial ground station construction belong to the OECD upstream segment. Routine spacecraft operations, radio-frequency and optical link management, data processing pipelines, and user terminal services sit within the OECD downstream segment. New Space Economy’s guide to the space economy value chain notes that modern companies increasingly cross these boundaries through vertical integration, combining spacecraft manufacturing, launch operations, ground gateways, and consumer subscriptions inside one corporate structure.

Upstream Research and Manufacturing Form the Technical Backbone

The OECD defines the upstream segment as the scientific, technological, and industrial backbone of the space economy. Every downstream data product, navigation signal, and broadband link depends on upstream organizations to solve the physics, materials science, and systems engineering challenges of operating in vacuum, extreme temperatures, and intense radiation. Upstream activity encompasses fundamental and applied research, scientific and engineering support, component supply, spacecraft and launch system manufacturing, and ground control infrastructure.

Fundamental Research and Mission Engineering

Every space program begins with mission design and early-stage research conducted across government laboratories, university institutes, and corporate research centers. Physicists, aerospace engineers, and instrument scientists establish the orbital geometry, spectral resolution, link budget, thermal tolerances, and lifetime reliability required to fulfill a scientific or commercial objective. Public agencies such as the National Aeronautics and Space Administration (NASA) document how subsystem engineering spans electrical power, propulsion, attitude determination and control, avionics, thermal management, structures, and command and data handling.

Early design choices lock in downstream economic performance years before a spacecraft reaches the launchpad. A communications operator selecting geostationary Earth orbit at 35,786 kilometers (22,236 miles) accepts higher signal latency in exchange for continuous regional coverage from a single spacecraft. An operator selecting low Earth orbit between 400 and 1,200 kilometers (249 and 746 miles) achieves low latency and lower transmission power requirements, but must finance and coordinate a constellation of dozens or thousands of satellites to maintain uninterrupted service.

Public research funding carries a large weight at this initial stage because fundamental instrumentation, deep-space propulsion, optical communication terminals, and radiation-tolerant electronics involve technical risks that private capital markets rarely underwrite alone. Government agencies transfer this early research into the commercial upstream base through development contracts, cooperative agreements, and technology-licensing programs.

Spacecraft Manufacturing and Industrial Supply Chains

Once mission requirements are fixed, the upstream manufacturing base converts engineering specifications into flight-qualified hardware. Prime contractors and specialized tier-one, tier-two, and tier-three suppliers fabricate spacecraft buses, synthetic aperture radar payloads, optical telescopes, solar arrays, lithium-ion batteries, Hall-effect thrusters, reaction wheels, star trackers, and onboard flight software. Before shipment to a launch site, integrated spacecraft undergo rigorous vibration, acoustic, electromagnetic compatibility, and thermal-vacuum testing to verify that they can survive launch loads and years of orbital cycling.

Industry revenue data illustrate the relationship between upstream hardware production and the rest of the sector. In its 2024 global satellite industry summary, BryceTech reported $20 billion in global satellite manufacturing revenue alongside $155.3 billion in ground equipment revenue and $108.3 billion in satellite services revenue. Satellite manufacturing represents a modest share of total annual revenue, yet its technical performance governs the capacity and unit economics of the entire downstream market.

Recent OECD analysis in OECD market dynamics analysis highlights two structural changes in upstream manufacturing as of September 2026. First, constellation operators have shifted satellite manufacturing from bespoke, single-unit craftsmanship toward modular, high-rate assembly lines. Second, space manufacturing faces growing exposure to supply-chain bottlenecks in space-grade electronics, specialized raw materials, and optical components, prompting national governments to treat domestic supplier networks as strategic industrial capacity.

Launch Services and Ground Systems Connect Earth to Orbit

A completed spacecraft sitting in a cleanroom generates no economic utility until transportation and communications infrastructure connect it to an operational orbit and a terrestrial control network. Within the OECD framework, launch systems and core ground control installations bridge upstream hardware fabrication and ongoing orbital operations.

Launch Vehicles and Orbital Transportation Economics

The launch industry provides the physical transportation link from Earth to low Earth orbit, medium Earth orbit, geostationary transfer orbit, and cislunar or interplanetary trajectories. Launch activity includes rocket propulsion manufacturing, airframe assembly, payload integration, range safety coordination, regulatory licensing, propellant loading, flight control, and stage recovery. Commercial customers evaluate launch providers across price per kilogram, schedule reliability, orbital insertion accuracy, fairing volume, insurance terms, and national security eligibility.

In BryceTech’s 2024 satellite industry assessment, commercial launch services accounted for $9.3 billion in annual revenue. That figure confirms that launch is a specialized enabling service rather than the largest revenue pool in the space economy. Even so, launch cadence and vehicle reusability have reshaped how satellite operators design and finance orbital fleets.

New Space Economy’s analysis of SpaceX launch cadence and reusability explains how routine first-stage booster recovery and high flight frequency turned orbital launch into a predictable throughput system. Frequent rideshare missions allow small-satellite operators to deploy payloads at lower upfront capital cost, and dedicated medium-lift and heavy-lift launches allow constellation operators to replenish fleets on regular schedules.

Ground Stations and Network Control Infrastructure

The OECD upstream perimeter also encompasses the ground systems required to track, command, and receive data from spacecraft. Telemetry, Tracking, and Command (TT&C) stations monitor spacecraft health, upload flight software updates, execute collision-avoidance maneuvers, and coordinate payload tasking. High-rate downlink antennas, gateway stations, mission control centers, and fiber backhaul links move raw mission output from orbital receivers into terrestrial data centers.

Historically, satellite operators built and maintained proprietary antenna networks to communicate with their fleets. Over the past decade, commercial providers transformed ground infrastructure into a shared cloud-integrated utility. New Space Economy’s coverage of Ground Station as a Service and ground segment service models shows how operators now rent antenna contact minutes across global station networks, routing downlinked telemetry and payload data directly into cloud computing environments for immediate processing.

Downstream Operations Turn Satellite Signals into Commercial Services

According to the OECD’s 2026 synthesis report, the largest share of economic value in the space economy is generated downstream. In the OECD taxonomy, the downstream segment covers space operations for terrestrial use alongside all products and services that rely directly on satellite technology, signals, or data to function. New Space Economy’s examination of the space downstream sector and how satellites work as infrastructure demonstrates that downstream firms capture revenue by translating orbital physics into everyday commercial outcomes.

Satellite Fleet Operations and Orbital Management

At the top of the downstream tier sit satellite fleet operators and orbital capacity providers. These organizations manage constellations and single spacecraft in orbit, lease transponder bandwidth or spot-beam capacity to telecommunications carriers, schedule imaging passes, maintain orbital slots, and coordinate network traffic. As spacecraft have become increasingly software-defined, operators can dynamically reallocate bandwidth across geographic regions, adjust beam patterns for maritime and aviation corridors, and process sensor data onboard before downlink.

Downstream operations also include an expanding market for Space Situational Awareness (SSA), conjunction analysis, and in-orbit servicing. Operators rely on radar and optical tracking networks to monitor orbital debris, calculate collision probabilities, and plan propellant-efficient avoidance maneuvers that preserve fleet longevity.

Broadband Communications and Direct Connectivity

Satellite communications (SatCom) historically generated the largest commercial cash flows in the downstream space economy through direct-to-home television broadcasting, enterprise very-small-aperture terminal networks, and transoceanic backhaul. In the 2020s, high-capacity low Earth orbit constellations shifted growth toward low-latency consumer broadband, maritime and airline connectivity, and resilient government communications.

User equipment sits at the center of downstream SatCom economics. Phased-array broadband terminals, maritime stabilized antennas, certified aviation radomes, and Internet of Things transceivers account for a major portion of global ground equipment spending. In addition, satellite operators and mobile network carriers have begun deploying direct-to-device connectivity (D2D) services that connect unmodified cellular handsets to orbital spacecraft for emergency messaging, voice, and basic data coverage outside terrestrial cell-tower range.

Earth Observation Analytics and Positioning Services

The other two pillars of the downstream segment are Earth observation (EO) and Positioning, Navigation, and Timing (PNT) powered by Global Navigation Satellite Systems (GNSS). In Earth observation, raw satellite imagery undergoes radiometric calibration, orthorectification, cloud masking, and machine-learning classification to become decision-ready intelligence. New Space Economy’s review of satellite data analytics companies explains how downstream firms combine optical, radar, and thermal measurements with ground data to monitor deforestation, verify carbon offsets, track dark maritime vessels, and assess storm damage.

In the GNSS market, publicly funded constellations such as the U.S. Global Positioning System (GPS), the European Union’s Galileo system, China’s BeiDou network, and Russia’s GLONASS broadcast precise timing and ranging signals free of direct user charges. Virtually all commercial revenue appears downstream in GNSS chipsets, smartphone location services, precision agriculture steering systems, autonomous vehicle navigation, and nanosecond timing synchronization for electrical grids and financial exchanges. New Space Economy’s guide to space-enabled applications traces how these invisible services underpin modern digital commerce.

The table below compares the three core downstream application pillars in the OECD value chain.

Space-Related Spin-Offs and Technology Transfers Expand Terrestrial Value

The third tier of the OECD framework is the space-related or derived segment. As defined by the OECD Space Forum taxonomy and reaffirmed in the 2022 OECD handbook update, this segment captures space applications, products, and services originating from spin-offs or technology transfer from the space sector that use space-derived innovation but do not depend on active satellite signals or orbital links to function.

For decades, extreme engineering constraints in human spaceflight, robotic planetary exploration, and orbital satellite design have forced agencies and contractors to invent compact, energy-efficient, and fault-tolerant technologies. Once patented or published, those innovations frequently migrate into non-space industries. Examples documented across agency technology-transfer portfolios include complementary metal-oxide-semiconductor image sensors used in consumer cameras and medical endoscopy, closed-loop water filtration systems deployed in remote communities, robotic surgical arms derived from orbital servicing manipulators, phase-change thermal garments, and carbon-composite structural materials used in automotive and wind-turbine manufacturing.

Statistical offices treat spin-offs carefully because counting all historical revenue of every industry that ever adopted a space-originated material would inflate space economy estimates beyond recognition. The OECD handbook distinguishes core upstream and downstream space activities from broader technology-transfer spillovers, recommending case studies, patent-citation analysis, and targeted technology-transfer surveys rather than lumping spin-off sales into core satellite industry revenue totals.

Alongside hardware spin-offs, the space-related ecosystem includes specialized professional, financial, and risk-management services that enable commercial space activity across the entire value chain. Venture capital funds, private equity firms, export-credit agencies, and commercial banks structure project finance for capital-intensive constellations and spaceports. Space insurance underwriters price pre-launch, launch, and in-orbit policies that allow operators to manage catastrophic vehicle or spacecraft failures.

Specialized legal, regulatory, and cybersecurity practices have also become essential components of the space-related ecosystem. Law firms guide operators through international spectrum filings, export-control compliance, remote-sensing licenses, and orbital debris obligations. Cybersecurity firms protect satellite command links, ground gateways, and cloud data pipelines against spoofing, jamming, and network intrusion. New Space Economy’s analysis of the 2025 space cybersecurity incident record and space security verification methods illustrates why digital assurance and behavioral verification now affect operational trust across both commercial and defense space architectures.

National Space Accounts Harmonize OECD and BEA Methodologies

A central achievement of the OECD space measurement handbook is its integration with national income and product accounting. Because standard industrial classification codes do not isolate space work as a standalone sector, national statistical offices historically relied on industry questionnaires that used incompatible definitions of upstream and downstream boundaries.

In 2020, the U.S. Bureau of Economic Analysis constructed the United States Space Economy Satellite Account using supply-use tables derived from the North American Industry Classification System (NAICS). Rather than simply summing company self-reported revenues, the BEA methodology isolates the space-specific share of production within hundreds of commodity and industry categories. That approach produces four primary macroeconomic indicators: gross output, value added (which measures direct contribution to gross domestic product), private-sector employment, and worker compensation.

The difference between gross output and value added is foundational for understanding the space economy value chain. Gross output measures total industry sales, including intermediate inputs purchased from upstream suppliers. Value added subtracts intermediate inputs from gross output, isolating the net economic value created at each specific stage of production. By tracking value added across upstream manufacturing, launch, and downstream telecommunications and data processing, national space accounts prevent double counting when components pass from tier-two suppliers to prime contractors and satellite operators.

Economists also adjust longitudinal space statistics for inflation by converting current (nominal) dollars into constant (real) dollars using price deflators such as the Consumer Price Index (CPI) published by the Bureau of Labor Statistics or sector-specific producer price indices. Comparing space budgets or commercial revenues across a 10-year or 20-year window in current dollars can overstate real industrial expansion if price levels rose during the period.

To evaluate the broader socio-economic return on public space investments, the fifth chapter of the 2022 OECD handbook outlines input-output multiplier analysis and cost-benefit frameworks. Input-output models trace three distinct waves of economic activity:

• Direct impacts measure immediate output and employment at prime space contractors, launch providers, and satellite operators.
• Indirect impacts measure output and employment generated across tier-one, tier-two, and tier-three supply chains that provide metals, chemicals, electronics, software, and facility services.
• Induced impacts measure wider economic activity generated when upstream, downstream, and supply-chain workers spend their household wages on consumer goods, housing, healthcare, and local services.

Methodological scope explains why headline global space economy figures vary across major institutions. Narrower bottom-up industry trackers measure core satellite manufacturing, launch, ground equipment, and direct satellite services at roughly $400 billion annually. Broader frameworks that incorporate wider downstream reach applications, such as the 2024 WEF and McKinsey report estimating a $630 billion market in 2023 and projecting $1.8 trillion by 2035, include space-enabled revenues across consumer ride-hailing, logistics, agriculture, and financial services. Both approaches are analytically valid when decision-makers understand which tiers of the OECD value chain are inside the boundary.

The table below compares the three primary measurement approaches used to quantify the space economy value chain.

Governance and Orbital Sustainability Reshape Value Chain Economics

The space economy value chain does not operate in an unregulated vacuum. Every technical and commercial handoff from upstream design to downstream service delivery is governed by international treaties, radio-frequency allocations, national licensing regimes, export controls, and orbital sustainability standards.

At the international level, the International Telecommunication Union (ITU) coordinates radio-frequency spectrum and geostationary and non-geostationary orbital filings so that satellite networks can transmit commands and payload data without harmful interference. Domestic regulators, including the Federal Communications Commission Space Bureau in the United States, authorize market access, user terminal operations, direct-to-device spectrum sharing, and post-mission disposal commitments. Without coordinated spectrum access and landing rights, a technically functional satellite constellation cannot legally monetize its downstream capacity.

Environmental and orbital congestion pressures now directly affect value-chain cost structures. In its June 2024 publication The Economics of Space Sustainability, the OECD examined how rising satellite deployment rates and orbital debris density impose external costs on both upstream spacecraft design and downstream fleet operations. Operators face higher expenditures for collision-avoidance propulsion, autonomous conjunction-assessment software, shielding, and deorbit systems aligned with guidelines from the UN Office for Outer Space Affairs (UNOOSA) and shortened national deorbit rules such as the FCC five-year post-mission disposal requirement for low Earth orbit spacecraft.

At the same time, sustainability constraints have created new commercial links within the value chain. Upstream manufacturers now sell low-debris separation mechanisms, drag sails, and refuelable interfaces, and downstream operators purchase commercial space-domain awareness feeds, active debris removal concepts, and life-extension servicing. As the OECD notes in its cost-avoidance framework, satellite Earth observation and navigation systems also generate major environmental cost avoidances on Earth by optimizing shipping routes, reducing agricultural fertilizer runoff, detecting industrial methane leaks, and improving early warnings for extreme weather events.

Summary

The OECD definition of the space economy value chain provides a practical, internationally recognized map for understanding how space capabilities create economic and social value. By organizing the sector into upstream, downstream, and space-related segments, the OECD framework corrects the common misconception that the space economy begins and ends with rockets and astronauts. Upstream research, component supply, spacecraft manufacturing, launch services, and ground control stations form the essential engineering backbone, yet they represent the starting investment rather than the final commercial outcome.

Downstream operations and applications capture the largest share of sector revenue because they translate orbital infrastructure into services that terrestrial buyers integrate into daily workflows. Satellite communications networks connect remote households, ships, and aircraft; Earth observation pipelines turn raw spectral measurements into agricultural, environmental, and insurance decisions; and Global Navigation Satellite Systems synchronize transport networks, power grids, and financial transactions. Alongside those core satellite services, the space-related segment spreads space-derived patents, materials, medical devices, venture financing, insurance, and cybersecurity practices across the broader economy.

For executives, investors, and public policymakers, the OECD value chain and its alignment with national satellite accounts offer three enduring analytical lessons. First, headline market estimates must always be read alongside their segment boundaries and accounting methods to separate gross revenue from net value added. Second, commercial margin shifts toward whichever link in the chain controls a scarce capability or solves a concrete end-user problem. Third, long-term growth across every tier of the value chain depends on maintaining safe, sustainable orbital and spectrum environments that allow space infrastructure to scale reliably.

Appendix: Useful Books Available on Amazon

• The Space Economy: Capitalize on the Greatest Business Opportunity of Our Lifetime
• Space Is Open for Business: The Industry That Can Transform Humanity
• The Case for Space: How the Revolution in Spaceflight Opens Up a Future of Limitless Possibility
• When the Heavens Went on Sale: The Misfits and Geniuses Racing to Put Space Within Reach
• Escaping Gravity: My Quest to Transform NASA and Launch a New Space Age
• Business Model Generation: A Handbook for Visionaries, Game Changers, and Challengers
• The Innovator’s Dilemma: When New Technologies Cause Great Firms to Fail

Appendix: Top Questions Answered in This Article

How Does the OECD Define the Space Economy?

The Organisation for Economic Co-operation and Development defines the space economy as the full range of activities and the use of resources that create and provide value and benefits to human beings in the course of exploring, understanding, managing, and utilizing space. This broad definition covers public agencies, hardware manufacturers, orbital operators, software firms, and terrestrial users.

What Are the Three Main Segments of the OECD Space Economy Value Chain?

The OECD Space Forum divides the space economy value chain into the upstream segment, the downstream segment, and the space-related or derived segment. The upstream tier builds and launches space systems, the downstream tier operates satellites and delivers data or signal services, and the space-related tier captures technology spin-offs and enabling services.

What Activities Belong to the Upstream Space Segment?

The upstream segment encompasses fundamental and applied scientific research, mission engineering, raw material and electronic component supply, spacecraft and launch vehicle manufacturing, spaceport operations, and ground control stations. These activities establish the technological and industrial foundation required to place functional payloads into orbit and maintain command and telemetry links with Earth.

Why Does the Downstream Segment Generate the Most Revenue?

The downstream segment captures the largest share of space economy revenue because it sells recurring services and decision products to millions of consumer, enterprise, and government buyers. Satellite broadband subscriptions, television broadcasting, Earth observation analytics, and Global Navigation Satellite Systems chipsets and location services scale far beyond one-time spacecraft construction contracts.

How Does a Space Value Chain Differ from a Space Supply Chain?

A space supply chain tracks the physical and contractual movement of production inputs such as metals, avionics, sensors, propellants, and test services into finished hardware. A space value chain maps how each operational stage adds economic utility, customer willingness to pay, and profit margin from initial research through end-user adoption.

What Is Included in the Space-Related or Derived Segment?

The space-related segment includes commercial products and services derived from space sector research, patents, and technology transfers that do not rely on active satellite signals to operate. Examples include medical imaging sensors, water purification systems, advanced composites, and enabling services such as space insurance, venture finance, legal counsel, and cybersecurity.

How Do the OECD and the U.S. Bureau of Economic Analysis Align Their Frameworks?

In the 2022 second edition of its measurement handbook, the OECD integrated its upstream and downstream taxonomy with the goods-and-services classification created by the U.S. Bureau of Economic Analysis in 2020. Both frameworks isolate space-specific production within standard industrial classifications to measure gross output, value added, and employment consistently.

Why Do Global Space Economy Market Estimates Vary Across Reports?

Global space economy estimates range from roughly $400 billion to more than $630 billion because organizations draw different boundaries around the downstream and space-related segments. Narrower industry surveys count core satellite manufacturing, launch, ground equipment, and direct satellite services, whereas broader valuations include downstream location-based applications and wider terrestrial reach revenues.

What Are Direct, Indirect, and Induced Impacts in Space Economy Measurement?

Direct impacts measure output and jobs at prime spacecraft manufacturers, launch providers, and satellite operators. Indirect impacts measure production and employment across multi-tier supply chains that furnish materials, electronics, and engineering services. Induced impacts measure the wider economic activity generated when workers across those companies spend their household income in the general economy.

How Does Orbital Sustainability Affect the Space Economy Value Chain?

Growing orbital traffic and debris risks require upstream manufacturers to incorporate propulsion, shielding, and deorbit hardware into spacecraft designs and require downstream operators to invest in conjunction tracking and collision avoidance. At the same time, regulatory disposal mandates and sustainability standards stimulate commercial demand for space-domain awareness and in-orbit servicing.

Appendix: Glossary of Key Terms

Space Economy Value Chain

The interconnected sequence of research, manufacturing, launch, orbital operations, ground networking, data processing, distribution, and spin-off activities that transform space resources into economic and social benefits. Under the OECD framework, the chain is organized into upstream, downstream, and space-related segments to track where value is created and captured.

Upstream Segment

The foundational tier of the space economy value chain responsible for scientific research, engineering design, materials and component supply, spacecraft and launch vehicle manufacturing, spaceports, and telemetry ground stations. Upstream organizations build and deploy the physical and technical infrastructure required to access and operate in the space environment.

Downstream Segment

The operational and customer-facing tier of the space economy value chain that manages orbital spacecraft and converts satellite signals, bandwidth, and sensor measurements into terrestrial products and services. It includes satellite communications, Earth observation analytics, navigation and timing equipment, and user terminals that serve consumers, businesses, and governments.

Space-Related Segment

The third tier of the OECD space taxonomy covering commercial spin-offs, technology transfers, and enabling professional services that originate from or support space activities without depending on live satellite signals to function. It encompasses space-derived medical and industrial products alongside space finance, insurance, legal counsel, and specialized education.

Gross Output

The total market value of goods and services produced by an industry within a defined period, including the cost of intermediate materials, components, and services purchased from upstream suppliers. In national space accounts, gross output reflects aggregate sales volume before subtracting inter-industry supply-chain purchases.

Value Added

The net economic contribution of an industry or value-chain segment to gross domestic product, calculated by subtracting the cost of intermediate inputs from gross output. Measuring value added across upstream and downstream space activities prevents statistical double counting when components and services move between suppliers and operators.

Telemetry, Tracking, and Command

The essential communications and ground-station functions that monitor spacecraft health, determine orbital position, and transmit operational instructions to satellites and launch vehicles. Telemetry, tracking, and command systems connect upstream flight hardware to downstream fleet operators, ensuring that spacecraft remain properly oriented, powered, and responsive throughout their mission lives.

Ground Station as a Service

A commercial operating model in which satellite operators rent antenna contact time and cloud-connected data delivery from shared global ground networks rather than building proprietary earth stations. This model reduces upfront capital expenditure and shortens latency between orbital data collection and downstream product processing.

Space Situational Awareness

The tracking, characterization, and prediction of artificial objects and natural hazards in Earth orbit, including active satellites, spent rocket stages, and fragmentation debris. Space situational awareness supports conjunction warnings, collision-avoidance maneuvers, regulatory compliance, and long-term orbital sustainability across the upstream and downstream value chain.

Direct-to-Device Connectivity

A satellite communications architecture that delivers messaging, voice, or data links directly from orbital spacecraft to standard, unmodified consumer smartphones using partnered terrestrial mobile spectrum. Direct-to-device services expand downstream telecommunications reach into rural, maritime, and emergency zones located beyond terrestrial cellular tower coverage.

Global Navigation Satellite Systems

Constellations of medium Earth orbit and regional satellites that broadcast continuous radio-frequency ranging and atomic timing signals to terrestrial and airborne receivers. Global navigation satellite systems enable downstream positioning, navigation, and timing applications across smartphones, aviation, maritime transport, precision agriculture, telecommunications networks, and financial exchanges.

Input-Output Multiplier Analysis

An econometric modeling method used by statistical agencies to estimate how public or private spending in the space sector ripples through the broader economy. Input-output analysis separates direct spending at space companies from indirect supplier purchases and induced household consumption generated by sector payrolls.