Educational Organizations
- Ben-Gurion University of the Negev, Israel
- Canadian Science Center for Human and Animal Health, Canada
- Cranfield University, United Kingdom
- Delfi-C3 Mission at Delft University of Technology, the Netherlands
- Imperial College, United Kingdom
- Institute of Robotics and Technical Cybernetics, Russia
- National Institute for Aerospace Technology (INTA), Spain
- Harvey Mudd College
- Institute of Space Technology, Pakistan
- Istanbul Technical University (ITU), Turkey
- Kentucky Science & Technology Corporation
- Morehead State University
- Lincoln Labs at the Massachusetts Institute of Technology (MIT)
- Nanyang Technological University, Singapore
- Narvik University College, Norway
- Naval Postgraduate School
- Observatorio Astronomico, Universidad Sergio Arboleda, Colombia
- Rochester Institute of Technology
- Royal Military College of Canada
- Ryerson University, Canada
- Space Systems Development Laboratory (SSDL) at Stanford University
- KatySat
- StardotSat uses Pumpkin's Salvo RTOS on Microchip PIC18
- MAST also uses Pumpkin's Salvo RTOS on Microchip PIC18
- Space Dynamics Laboratory's SU-Sat at Utah State University
- Technological Campus of the University of Navarra (TECNUN), Spain
- Thomas Jefferson High School for Science and Technology, Alexandria, Virginia
- Tsinghua University, China
- University of Alabama at Huntsville
- Universidad Distrital, Colombia
- School of Engineering and Electronics at the Universty of Edinburgh, Scotland
- Universidad Politecnica de Catalunya, Spain
- University of Applied Sciences of Southern Switzerland (SUPSI)
- University of Bucharest, Romania
- University of Florida's Inflate-a-Brake project
- University of Hawaii's Hawaii Space Flight Laboratory
- University of Liège, Belgium
- University of Manitoba, Canada
- University of Nevada at Reno
- University of Oklahoma
- University of Surrey, United Kingdom
- University of Texas at Austin
- Politecnico di Torino, Italy
- Vermont Technical College
Commercial & Non-Profit Organizations
- Astronautic Technology (M) Sdn Bhd (ATSB), Malaysia
- Ecliptic Enterprises
- Japan Aerospace Exploration Agency (JAXA)
- Inland Northwest Space Alliance
- IntelliTech Microsystems
- Israeli Nano-Satellite Association (INSA), Israel
- Los Alamos National Laboratory
- Ministry of Technology, Science & Innovation (MOSTI), Malaysia
- Hawk Institute for Space Sciences (HISS), a division of Maryland Hawk Corporation
- Magna Parva Ltd, United Kingdom
- Miltec Missiles and Space Company, a division of Miltec Coporation
- NASA Ames Research Center (NASA ARC)
- NASA Wallops Flight Facility (NASA WFF / GSFC)
- Northrop Grumman Corporation
- Romanian Space Agency (ROSA)
- Orbital Sciences Corporation
- Stanford Research International (SRI)
Inclusion in this list only indicates that a company has at one time purchased a Pumpkin CubeSat Kit product, and does not imply an endorsement of Pumpkin's CubeSat Kit products.
