Solestial, Inc.

📍 Tempe, United States🗓 Founded 2013👥 50 employees💰 Last funded May 2025
Defense and Space Manufacturing🌐 solestial.com
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Solestial exists to deliver abundant energy in space. Our core product is a flexible solar power module. Each module is comprised of our breakthrough technology, a silicon solar cell engineered for space to self-cure radiation damage under sunlight at temperatures as low as 65°C. Our flexible solar power modules are ultrathin, low mass, and radiation hardened. Affordability and scalability are the key differentiators of Solestial modules. Our components are more affordable to source than III-V multijunction solar panel components and can be quickly manufactured on automated machines. Terrestrial silicon solar panels are affordable but degrade rapidly in space due to radiation and other factors. Solestial flexible solar power modules anneal radiation damage at normal operating temperatures allowing them withstand up to 10 years in a variety of destinations in space. Solestial’s innovative solar products provide customers with the best combination of radiation hardness, performance, and cost, at virtually unlimited scale. Our innovative technology represents a paradigm shift for space solar; an affordable, durable, scalable solution to power development in space. Solestial is a US company manufacturing in Tempe, Arizona.
8
Total investors
0
Early stage
0
Mid stage
5
Late stage
2013
Founded

Investors

8 investors
All
Early stage
Mid stage
Late stage
Investor geography2 countries
United States
6
Japan
2
Investor activity2021–2025 · investors recorded per year
20212202232024120252
Recent (last 2y)Earlier
Frequently asked questions
Who invested in Solestial, Inc.?
Solestial, Inc. has 8 investors on record on gritt.io and 5 late-stage investors.
When did Solestial, Inc. last raise funding?
The most recent investment in Solestial, Inc. recorded on gritt.io was in May 2025.
When was Solestial, Inc. founded?
Solestial, Inc. was founded in 2013.
What industry is Solestial, Inc. in?
Solestial, Inc. operates in Defense and Space Manufacturing. Find similar Defense and Space Manufacturing investors on gritt.io.
Where is Solestial, Inc. based?
Solestial, Inc. is headquartered in Tempe, United States.