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A solar array in orbit above Earth

Hardware for missionsfrom the Sunto Jupiter.

Helio designs, builds and tests deployable systems for NASA and commercial missions, and is applying that heritage to power from space.

40+Space flight missions behind our team
2018Founded in Berkeley, California

Problem solvers for the space industry.

Since 2018, Helio's engineers and scientists have taken hardware from first drawing to flight-qualified delivery. Our antennas are flying to Europa. Our sensors have worked on the Moon. Next, we are developing power plants in space.

About Helio
A Helio-built radar antenna mounted beneath a Europa Clipper solar array
Engineers assembling deployable hardware in a cleanroom

Hardware that stows small and works far from home.

Custom designed, assembled, tested and delivered fully qualified and ready for flight.

A receiving station for space solar power at dawn

Sunlight, collected in orbit. Delivered on the ground.

A fleet of SolarSats collects sunlight around the clock, converts it to microwaves and beams it to receiving stations that feed the grid.

24/7Collection in orbit, with no night or weather gaps
~10%Of the land a ground solar field needs for the same power
BaseloadClean, steady electricity for utilities and industry

Flight heritage you can count.

125+

Instruments and mechanisms developed by our leadership team

40+

Space flight missions across their careers

55+ft

Deployed length of each Europa Clipper radar antenna

20,000sq ft

Berkeley facility with clean rooms and thermal-vacuum testing

Europa ClipperJames Webb Space TelescopeParker Solar ProbeSolar OrbiterSunRISEBlue Ghost Mission 1Roman Space TelescopeHabitable Worlds Observatory Europa ClipperJames Webb Space TelescopeParker Solar ProbeSolar OrbiterSunRISEBlue Ghost Mission 1Roman Space TelescopeHabitable Worlds Observatory

Our antennas are on their way to Europa.

Helio designed, built, tested and delivered the radar antennas for NASA's Europa Clipper. Stowed, they fold flat onto the solar arrays. Deployed in flight, they are ready to sound the ice of Jupiter's moon.

InstrumentREASON ice-penetrating radar
LaunchOctober 2024
Deployed lengthMore than 55 feet
StatusDeployed and operating
Helio radar antennas installed on a Europa Clipper solar array
Europa Clipper on its Falcon Heavy at Launch Complex 39A

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Sunrise over the curve of Earth seen from orbit

Have hardware that has to work in space?

Tell us about your mission and our engineering team will be in touch.