- Sikorsky Aircraft
- Main business：
- USA [Unverified ]
- Scion UAS
- Main business：1000~3000 square meter
- USA [Unverified ]
- Scaled Composites
- Main business：1000~3000 square meter
- USA [Unverified ]
- Shadowair
- Main business：1000~3000 square meter
- USA [Unverified ]
- Sensintel
- Main business：1000~3000 square meter
- USA [Unverified ]
- Thorpe Seeop Corporation
- Main business：1000~3000 square meter
- USA [Unverified ]
- Sadler Aircraft Company
- Main business：1000~3000 square meter
- USA [Unverified ]
- RP Flight Systems
- Main business：1000~3000 square meter
- USA [Unverified ]
- R/C Rotors and Aerial Media
- Main business：1000~3000 square meter
- USA [Unverified ]
- Rotomotion
- Main business：1000~3000 square meter
- USA [Unverified ]
- Proxy Aviation Systems
- Main business：1000~3000 square meter
- USA [Unverified ]
- Protector Interceptor
- Main business：1000~3000 square meter
- USA [Unverified ]
- Propulsive Wing LLC
- Main business：1000~3000 square meter
- USA [Unverified ]
- Prioria Robotics
- Main business：1000~3000 square meter
- USA [Unverified ]
- Orbital Sciences Corporation
- Main business：1000~3000 square meter
- USA [Unverified ]
- Northrop Grumman
- Main business：1000~3000 square meter
- USA [Unverified ]
- ClearBlue Aero, LLC.
- Main business：aircraft sales and brokerage services
- USA (Traders) [Unverified ]
- Nebraska Intelligent MoBile Unmanned Systems
- Main business：1000~3000 square meter
- USA [Unverified ]
- NASA
- Main business：1000~3000 square meter
- USA [Unverified ]
- MLB Company
- Main business：1000~3000 square meter
- USA [Unverified ]