Erik Kulu has developed a commercial activity and product taxonomy for the in-space economy. He has a website factoriesinspace.com and an associated published paper which provide more details.

- Human spaceflight and landers
- Human-rated spacecraft and shuttles
- Human-rated landers
- Cargo transportation and landers
- Cargo resupply
- Landers
- Reusable satellites
- Reentry capsules
- Surface spacecraft
- Human-rated rovers
- Robotic rovers
- Space station and space habitats
- Surface habitats and surface structures
- In-space manufacturing
- In-space assembly
- In-space production
- Deep space food (agriculture)
- Microgravity manufacturing
- Additive manufacturing
- In-space construction
- Space resources
- In-stitu resource utilization
- Raw materials
- Prospecting
- Astroid mining and processing
- Space utilities
- Energy
- In-space Internet
- Navigation
- Water
- In-space transportation
- Space mobility and logistics
- On-orbit servicing
- Space tugs
- Space transportation nodes
- Orbital transfer vehicles
- Propellant refill stations
- Active debris removal
- In-orbit inspection
- Miscellaneous
- Spacesuits and garments
- Commercial astronauts
- Space entertainment
- Space traffic management
- Space tourism
- Space tourism support
- Space advocacy
- Space advertising and marketing
- In-orbit computing
- Space robotics
- Moon and mars remote sensing
- In-space infrastructure