United States · 
Who invested in M2X Energy?
M2X Energy's investors include Breakthrough Energy.
20252026
$40MSeries B$20MVenture$125MRoundUnited States · Venture startup
Who invested in M2X Energy
3 rounds we have observed, with the one investor named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.
Raised 1 month ago
Funding summaryUpdated 26 Oct 2026
$185Mraised across 3 rounds since 2024, from 3 sources
$40MSeries B$20MVenture$125MRound
- Latest round
- Round, $125MOct 2026
- Step-upi
- 6.2×
- Investors
- 1
The funding story
Each circle is a round, placed by date and sized by amount. The line above is the running total.
- First round
- Series B, $40M Jun 2024
- Biggest round
- $125M Round · Oct 2026
- Usual gap between rounds
- 21 months the median of 2
The rounds
- Oct 2026Round$125M
No investor was named in the report.
Filed with the SEC (Form D); no report of this raise yetSEC filing: $125M sold, first sale Oct 2026
- Mar 2026
- Jun 2024
Everyone who backed them
Missing a round, or an investor who was in one? Tell us.
Quick answers about M2X Energy
How much has M2X Energy raised?
M2X Energy has raised $185M across 3 rounds since 2024.
When did M2X Energy last raise?
M2X Energy's most recent round, $125M, was in Oct 2026.
What was M2X Energy's biggest round?
Its most recent round, $125M in Oct 2026, is also its largest on record.
Who backed M2X Energy first?
M2X Energy's first round on record, in Jun 2024, was backed by Breakthrough Energy.
What stage is M2X Energy at?
M2X Energy's latest named round is a Venture, in Mar 2026.
Where is M2X Energy based?
M2X Energy is based in the United States.
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