Private Valuation & Funding Round Tracker · Redwood Materials

Redwood Materials funding rounds & valuation history

Name: Redwood Materials Funding Rounds & Valuation History
Creator: growthnavigatefunding.net

Redwood Materials, the Carson City, Nevada battery-recycling and energy-storage company founded by former Tesla CTO JB Straubel, from its 2021 Series C to the 2026 Series E final close, sourced to Redwood’s own announcements, TechCrunch and Reuters.

Last updated: 13 Nov 2026 (IST). Every figure re-checked against the linked sources that day. Rows: 4 Currency: US$, nominal

⬇ Download CSV Cite this dataset Methodology & status definitions

Last closed round Closed

Over $6B

$75M (added) Series E final close, 28 Jan 2026 (Redwood Materials)

Total raised

$2.3B

Total private capital after the Series E (TechCrunch, Jan 2026)

Latest signal Closed

Over $6B

Series E final close, 28 Jan 2026

Round history

Newest first. Dashed badges and striped rows are not closed transactions. “—” means the source does not disclose the figure or it cannot be computed on the same basis; see the note in each row.

Redwood Materials funding rounds, July 2021 to January 2026
Date	Status	Round	Amount	Lead / buyer	Valuation	Val. ÷ run-rate	Source
28 Jan 2026	Closed round	Series E final closeRedwood: “final closing of our Series E financing, bringing the total raise to $425 million”. TechCrunch: total private capital raised $2.3B.	$75M (added)Takes the Series E from $350M to $425M (GNF calc. of the increase)	Google (new)With: Capricorn, Goldman Sachs Alternatives (existing)	Over $6BPost-money, per a source to TechCrunch (“north of $6 billion”); not stated by Redwood	—Not disclosedNo run-rate stated in the announcement	Redwood Materials, 28 Jan 2026Also: TechCrunch, 28 Jan 2026
23 Oct 2025	Closed round	Series ENo step-up shown: the Series D valuation was never stated (TechCrunch only implies about $5B).	$350M	EclipseWith: NVentures (NVIDIA) and others	About $6BPer a source to TechCrunch (“about $6 billion, a billion higher than its previous valuation”); not stated by Redwood	—Not disclosedNo run-rate stated in the announcement	Redwood Materials, 23 Oct 2025Also: TechCrunch, 23 Oct 2025
29 Aug 2023	Closed round	Series DRedwood: “nearly $2 billion of equity capital” raised to date, plus a separate $2B U.S. Department of Energy loan commitment (debt, not in the table).	Over $1B	Goldman Sachs Asset Management, Capricorn’s Technology Impact Fund, T. Rowe Price-advised funds (co-leads)	—Not disclosedNo valuation stated by Redwood	—Not disclosedNo run-rate stated in the announcement	Redwood Materials, 29 Aug 2023
28 Jul 2021	Closed round	Series C	$700M	T. Rowe Price-advised funds and accountsWith: Goldman Sachs Asset Management, Baillie Gifford, CPP Investments, Fidelity and others	$3.7BPost-funding, per a source to TechCrunch (“post-funding valuation is $3.7 billion”); Redwood declined to comment	—Not disclosedNo run-rate stated in the announcement	TechCrunch, 28 Jul 2021Also: Reuters, 28 Jul 2021

Step-up = valuation ÷ the prior closed valuation (GNF calc.). Talks, tenders and rounds without a stated valuation carry no step-up.

Valuation at each closed round

Closed rounds with a stated or reported valuation. Talks, tenders and rounds without a valuation are in the table, not the chart.

Series CJul 2021$3.7B
Series EOct 2025~$6B
Series E finalJan 2026Over $6B

Sources: Redwood Materials; TechCrunch; Reuters. US$ billions, linear scale.

Timeline

Each round and share sale, oldest first.

28 Jul 2021 · Closed
Series C: $700M at $3.7B, led by T. Rowe Price-advised funds and accounts.
29 Aug 2023 · Closed
Series D: Over $1B, led by Goldman Sachs Asset Management, Capricorn’s Technology Impact Fund, T. Rowe Price-advised funds (co-leads).
23 Oct 2025 · Closed
Series E: $350M at About $6B, led by Eclipse.
28 Jan 2026 · Closed
Series E final close: $75M (added) at Over $6B, led by Google (new).

Still private: Redwood Materials has not filed for an IPO and is not owned by a listed company; Google, NVIDIA’s NVentures and Goldman Sachs are minority investors (Redwood Materials).

Cite this dataset

Free to quote with a link back. Copy this citation:

Redwood Materials Funding Rounds & Valuation History. Private Valuation & Funding Round Tracker, GrowthNavigateFunding.net, updated 13 Nov 2026. https://growthnavigatefunding.net/funding/redwood-materials/

Download the data

The same 4 rows as the table: numeric US$ columns, empty cells where a figure is not disclosed, and a source URL for every row.

File: redwood-materials-rounds.csv (UTF-8, comma-separated)
Stable URL: https://growthnavigatefunding.net/wp-content/uploads/2026/11/redwood-materials-rounds.csv
Columns: id, date, date_precision, status, transaction_type, round, amount_usd_low, amount_usd_high, lead_or_buyer, co_leads, valuation_usd_low, valuation_usd_high, valuation_basis, valuation_to_run_rate_multiple, multiple_bound, multiple_basis, step_up_vs_prior_closed, price_per_share_usd_low, price_per_share_usd_high, shares, source, source_url, other_source_urls, notes, last_updated
Updated: 13 Nov 2026 (IST)

⬇ Download CSV

Methodology & status definitions

How each row is labelled and calculated.

Closed round

A primary round announced by the company or confirmed in the press, bringing new money to the company.

Valuation ÷ run-rate

Post-money valuation ÷ the run-rate the company stated in that announcement (GNF calc.). Where the run-rate is “crossed” or “over” a figure, the multiple is shown as “under X×”. No row qualifies here unless shown, so no multiple is invented.

What is not a separate row

Seed through Series B rounds (2017–2020), the U.S. Department of Energy loan commitment and other debt, and reports of further 2026 funding that were not found in an authority source.

Updates & corrections

This page stays at one address and is updated in place; the “Last updated” date above drives the citation and the dataset metadata. Corrections: hello@growthnavigatefunding.net. Informational only; not investment advice.

Changelog

13 Nov 2026: Dataset first compiled (batch 3, not yet published).

Redwood Materials Funding Rounds & Valuation History (2021–2026)