Funding round
Base Power Series C
Base Power, which works in home backup power system installation in Austin, raised $1.00B in a Series C round announced on 8 Oct 2025, led by Addition. 20 firms took part. It is Base Power's second venture round on record; the one before was a Series B in Apr 2025.
$1.00B
Amount raised
Not disclosed
Post-money valuation
20
Investors
1 lead
Valuation
What this round says about the price
Base Power did not disclose a valuation in this round. It came 6 months after Base Power's Series B. It is 45% of the $2.20B Base Power has raised in the venture rounds on record. Base Power raised again 10 months later: a Series D round of $1.00B in Aug 2026, at $13.00B post-money.
Base Power's funding rounds
Base Power has 3 venture rounds on record. This one is highlighted.
Investors
Who put money in
Addition led the round with 19 other firms.
Lead investor
- Addition new investor
Also in the round
- backs 17 venture-backed companies new investor
- Valor backs 143 venture-backed companies new investor
- Thrive Capital backs 130 venture-backed companies new investor
- Lightspeed new investor
- Andreessen Horowitz backs 722 venture-backed companies new investor
- Altimeter backs 67 venture-backed companies new investor
- StepStone new investor
- 137 Ventures backs 25 venture-backed companies new investor
- backs 4 venture-backed companies new investor
- backs 7 venture-backed companies new investor
- Ribbit backs 126 venture-backed companies new investor
- CapitalG backs 70 venture-backed companies new investor
- Spark Capital backs 234 venture-backed companies new investor
- BOND backs 91 venture-backed companies new investor
- Lowercarbon Capital backs 110 venture-backed companies new investor
- backs 42 venture-backed companies new investor
- Glade Brook backs 30 venture-backed companies new investor
- Positive Sum new investor
- Elad Gil
Use of proceeds
What the money is for
According to the announcement, the money goes to geographic expansion and scaling operations.
- Geographic expansion
- Scaling operations
Comparable rounds
How it compares
The closest in time: Series C rounds in any sector within 6 months:
| Company | Announced | Amount | Post-money | Led by |
|---|---|---|---|---|
| Solar Energy Company | 8 Oct 2025 | $1.00B | $4.00B | Addition |
| Tubulis Pharmaceutical Products | 15 Oct 2025 | $358M | $2.10B | Venrock |
| Mercor Employment Agencies & HR Consulting | 27 Oct 2025 | $350M | $10.00B | Felicis |
| Fireworks AI Tech Companies | 28 Oct 2025 | $250M | $4.00B | Lightspeed Venture Partners and Index Ventures |
| Electronical Components Manufacturing | 14 Oct 2025 | $220M | not disclosed | not named |
| OpenEvidence Tech Companies | 20 Oct 2025 | $200M | $6.00B | GV |
| Tech Companies | 9 Oct 2025 | $180M | $2.50B | Accel |
| Tech Companies | 14 Oct 2025 | $165M | not disclosed | Eurazeo |
Sources
Where this comes from
Reported by 4 sources.
Questions
Frequently asked
How much did Base Power raise in its Series C round?
Base Power raised $1.00B in its Series C round, announced in Oct 2025.
Who led Base Power's Series C round?
Addition led it, with Trust Ventures, Valor, Thrive Capital, Lightspeed and Andreessen Horowitz and 14 more.
What was Base Power's valuation at the Series C round?
It was not disclosed.
Did Base Power raise again after this round?
Yes: a Series D round in Aug 2026 of $1.00B at $13.00B post-money.