S
Solestial
A breakthrough ultra-thin silicon solar cell that can self-cure radiation damage at normal operating temperatures in space
About Solestial
Solestial is a solar energy company that specializes in the development of silicon-based solar panels for space applications.
The company's primary focus is on creating low-cost, high-efficiency solar panels that are resistant to the damaging effects of radiation in space. This is achieved through a proprietary technology that allows for the mass production of these panels, which are designed to be easily integrated into a wide range of satellite architectures.
Solestial's business model is centered around supplying its solar panels to satellite manufacturers and operators in both the private and public sectors. The company aims to disrupt the space power market by offering a more affordable and scalable alternative to traditional, more expensive solar panel technologies. By doing so, it seeks to enable a new generation of space-based services and applications that are currently limited by the high cost of power.
Source: Dealroom company dataAt a glance
- Status
- Acquired
- Founded
- 2013
- Headquarters
- Tempe, United States
- Employees
- 50
- Open positions
- 10
- Dealroom signal
- 71.8/100
- Sub-industry
- Clean Energy
- Sector
- Space, Solar Energy, Spinout, Sustainable Development Goals, Space Tech, Space Exploration, Climate Tech, Space Utilities, Space Downstream, Space Upstream
- Technology
- Hardware, Deep Tech
- Business model
- Manufacturing
- Client focus
- b2b
Knowledge graph
More headlines
Funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| ACQUISITION✓Exit | May 2026 | $0 | — | York Space Systems | ↗ |
| GRANT✓Other financing | Jul 2025 | $1.2M | — | SpaceWERX | ↗ |
Growth signals
Latest recorded traffic for Solestial is 6.9K monthly website visits, up 115.6% over the last three months. Solestial's team declined 12.3% over the past year.
Open positions
Similar companies
Company identity and context are open; selected comparison metrics preview what is available on the platform.
Investments and acquisitions
Recent portfolio relationships for companies that also act as investors or acquirers.
Investors
From Dealroom's funding and investor records, grouped by the round each investor first entered.
Seed8 investors entered at this stage
Techstars
German Media Pool VC
Airbus Ventures
Stellar Ventures
AE Industrial Partners
Industrious Ventures
NASA
SpaceWERX
Series A5 investors entered at this stage
AE Ventures
Mitsubishi Electric
General Purpose Venture Capital
CrossCut Ventures
Zeon
Other known investors5 additional known investors
Arizona State University
York Space Systems
Jackson Moses
Mitsubishi Electric Innovation Fund
Small Business Innovation Research
Source: Dealroom Talent Intelligence.
Global footprint
team presence
Market sentiment
An AI-synthesised read of the highest-engagement posts about Solestial on X, ranked by likes and reposts, corporate channels excluded.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
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