Funding round
VoltaGrid Growth
Reported as "Growth Equity"
VoltaGrid, which works in energy generation and management services in Houston, raised $1.00B in a Growth round announced on 11 May 2026. 2 firms took part. It is VoltaGrid's fourth venture round on record; the one before was a Growth in Sep 2023.
$1.00B
Amount raised
Not disclosed
Post-money valuation
2
Investors
no lead named
Valuation
What this round says about the price
VoltaGrid did not disclose a valuation in this round. It came 32 months after VoltaGrid's Growth. It is 46% of the $2.16B VoltaGrid has raised in the venture rounds on record. VoltaGrid raised again 5 months later: a Growth round of $775M in Oct 2026.
VoltaGrid's funding rounds
VoltaGrid has 5 venture rounds on record and 1 other deal. This one is highlighted.
Investors
Who put money in
2 firms took part; no lead investor was named.
Investors
- Blackstone backs 83 venture-backed companies new investor
- Halliburton Company new investor
Use of proceeds
What the money is for
According to the announcement, the money goes to product development, scaling operations and acquisitions.
- Product development
- Scaling operations
- Acquisitions
Comparable rounds
How it compares
12 Growth rounds in Electric Supplies & Power Generation within a year either side disclosed an amount; the median was $88M, and this round was 11 times the median. The closest in time, other companies' Growth rounds in Electric Supplies & Power Generation:
| Company | Announced | Amount | Post-money | Led by |
|---|---|---|---|---|
| Valar Atomics Electric Supplies & Power Generation | 2 Apr 2026 | $450M | $2.00B | not named |
| Blue Energy Electric Supplies & Power Generation | 21 Apr 2026 | $380M | not disclosed | VXI Capital |
| Electric Supplies & Power Generation | 5 Jun 2026 | $46M | not disclosed | S2G Investments |
| Electric Supplies & Power Generation | 2 Feb 2026 | $30M | not disclosed | Nordic Alpha Partners |
| Electric Supplies & Power Generation | 5 Feb 2026 | $27M | not disclosed | Ultra Capital |
| Electric Supplies & Power Generation | 5 Aug 2026 | $22M | not disclosed | Barclays Climate Ventures and PXN Ventures |
| Electric Supplies & Power Generation | 21 Sep 2026 | $100M | not disclosed | Samsung C&T |
| Electric Supplies & Power Generation | 6 Oct 2026 | $6.00B | not disclosed | not named |
Sources
Where this comes from
Reported by 2 sources. The deal data marks this round as not yet confirmed by an official announcement. Unconfirmed
Questions
Frequently asked
How much did VoltaGrid raise in its Growth round?
VoltaGrid raised $1.00B in its Growth round, announced in May 2026.
Which investors took part in VoltaGrid's Growth round?
Blackstone and Halliburton Company.
What was VoltaGrid's valuation at the Growth round?
It was not disclosed.
How does it compare with other Growth rounds in Electric Supplies & Power Generation?
12 Growth rounds in Electric Supplies & Power Generation within a year either side disclosed an amount; the median was $88M, and this round was 11 times the median.
Did VoltaGrid raise again after this round?
Yes: a Growth round in Oct 2026 of $775M.