John describes Astranis as a maker of small satellites for high orbits, including geostationary orbit. With an aerospace engineering background and experience on large satellite programs, he saw an opportunity to use newer technology and designs for that market. He and Ryan, whom he knew through a student space organization, decided to explore the idea together.
You Don’t Have To Be A Billionaire To Launch Satellites
Speaker
John, Astranis co-founder, explains how he and co-founder Ryan built and launched low-cost satellites, in a conversation with a Y Combinator host at Astranis.
Facing the challenge of raising enough to launch a satellite, the founders set ambitious goals for their three-month YC batch. They chose to build a basic prototype that could demonstrate they could build, integrate, and operate a satellite, while keeping its requirements flexible. The prototype was ready for Demo Day, and a later version launched and operated in 2018.
John’s Demo Day pitch showed both that the team had built a satellite and that it could serve a commercial market. The pitch helped Astranis raise a large seed round, which funded a launch. The team then built in an 1,800-square-foot apartment, using IKEA desks and a PVC-pipe clean room with shower curtains.
Eight years later, Astranis had more than 400 employees and a manufacturing facility at Pier 70. The team uses a shaker table to simulate rocket vibration and thermal vacuum chambers to test satellites under vacuum with their software running. The chambers can also support ion thruster tests, avoiding the need to send that work elsewhere.
Astranis planned to launch four satellites together on a dedicated SpaceX Falcon 9. John says getting satellites operational would help the company scale manufacturing and learn to operate five satellites instead of one. The team was also developing a next-generation system and other programs.
Takeaways
- Choose a concrete technical milestone that proves the team can deliver.
- For an early prototype, focus on the core capability and keep requirements flexible.
- Use a pitch to show both technical proof and a credible business opportunity.
- Build only the infrastructure needed for the current stage, then bring useful testing in-house as the company grows.
- Plan for operations and manufacturing to scale alongside the product.
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What was claimed 11
- built
“the SpaceX Falcon 9”
YouTube Verified3 sources· Talk, Web· archived
- built
“launched their first commercial satellite into space”
YouTube Unverified2 sources· Talk
- founded
“the co-founders of Astranis”
YouTube Unverified1 source· Talk
- founded
“the co-founders of Astranis”
YouTube Unverified1 source· Talk
- featureAstranis: Builds small, low-cost satellites for high orbits
“we build small satellites for high orbits”
YouTube Unverified1 source· Talk
- previously atearly engineer
“start a job at a company called Planet”
YouTube Unverified1 source· Talk
- launchedAstranis launched telecommunications satellitefirst satellite operated in 2018
“built the version we launched and were able to operate in 2018”
YouTube Unverified1 source· Talk
- metricAstranis: More than 400 employees
“they have more than 400 employees”
YouTube Unverified1 source· Talk





