Solestial (Privacy and Security, Renewable Energy) — Funding, Investors & Signals 2026

Solestial

Solestial, Inc. is the solar energy company for space.

Founded 2013

Tempe, United States 44 employees Series Unknown Total: $13.09M Privacy and Security, Renewable Energy +1

Solestial is a US-based Renewable Energy startup founded in 2013 with the slogan "Solestial, Inc. is the solar energy company for space." The company has attracted attention with its breakthrough technology in space solar energy. Their silicon solar cells are designed to self-cure radiation damage under sunlight at temperatures as low as 65°C. Additionally, their flexible solar power modules, capable of enduring up to 10 years in different space environments, are produced with automated machines, leading to a remarkable 90% reduction in costs compared to existing III-V solar products. This innovation presents a paradigm shift in space solar technology, offering an affordable, durable, and scalable solution for space power development. The demand for 100 MW of solar for space within the next 5 years exists, but current space solar products are prohibitively costly and slow to manufacture. Solestial's solution lies in its space-optimized silicon solar cells, which provide high efficiency and low cost within a flexible solar power module, thus addressing the challenges faced by the industry. Notably, the latest investment, a Venture Round investment at 08 November 2023, saw participation from prominent investors including Airbus Ventures, AEI HorizonX, and Silent Ventures. In conclusion, Solestial is poised to disrupt the space solar industry and meet the growing demand for space solar technology, leveraging its innovative approach and strong investor support.

Funding Stage	Amount	Investors	Lead Investors	Date
Venture Round	••••••	3		08 Nov 2023
Grant	••••••	1		07 Nov 2023
Seed Round	••••••	7	•••• ••••	06 Oct 2022
Grant	••••••	1		01 Jul 2022
Pre Seed Round	••••••	2	•••• ••••	30 Sep 2021

Funding Stage

Amount

Investors

Lead Investors

Date

Venture Round

••••••

08 Nov 2023

Grant

••••••

07 Nov 2023

Seed Round

••••••

•••• ••••

06 Oct 2022

Grant

••••••

01 Jul 2022

Pre Seed Round

••••••

•••• ••••

30 Sep 2021

FAQ About Solestial

Solestial, Inc. is the solar energy company for space.

Solestial was founded in 2013.

Solestial is headquartered in Tempe, United States.

Solestial operates in the following industries: Privacy and Security, Renewable Energy, Space.

Solestial has approximately 44 employees.

Solestial has completed 8 funding rounds, raising a total of $13.09M. The latest funding stage is Series Unknown.

Top alternatives and competitors to Solestial include Tigo Energy, NanoPV Solar Inc.,, Ascent Solar Technologies, Inc., Virtus Solis Technologies, Amonix Inc. These companies operate in related industries and serve comparable markets. You can compare them side by side on Bounce Watch.

Solestial and Tigo Energy are both companies in similar industries. Compare their funding, team size, growth signals, and market position on Bounce Watch to see which one fits your needs.

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