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Company

Redwood Materials

Rocket Ship RatingBased on the data VC Catalog holds.

Rocket Ship Rating: 99 out of 100

Securing U.S. critical materials.

Also known as Redwood Materials, Inc.

  • Clean energy & storage
  • Sustainable materials & circular economy
  • Climate positive
  • Hardware
Status
Operatingas of 2026-09-18
Business model
B2B
Founded
2017
Legal name
Redwood Materials, Inc.
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Record updated 8 October 2026

About

We're providing domestic energy storage at scale, securing U.S. critical materials, and powering the next era of American energy.

Funding snapshot

Total raised
$3.8BSum of rounds, as of 2026-10-08Source (opens in a new tab)
Latest round
Series D+, $425M2026-01-28

Funding rounds

Series D+
$425M2026-01-28, Company stated
Series D+
$350M2025-10-23, Company stated
Debt
$2B2023-02, Announced
Round, 2022
$154M2022-06-17, SEC form D sold, 19 investors
Round, 2022
$45.3M2022-05-16, SEC form D sold, 3 investors
Series C
$777M2021-05-28, SEC form D sold, 80 investors, post-money $3.7B
Round, 2020
$36.9M2020-04-22, SEC form D sold, 9 investors
Round, 2017
$2M2017-04-17, SEC form D sold, 1 investor

Products

Hardware
Redwood Energy Storage
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