United States · Funded startup

Who invested in Ses

3 rounds we have observed, with the 4 investors 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.

Energy

Raised 2 months ago

Funding summaryUpdated 26 Oct 2026

$288Mraised across 3 rounds since 2022, from 3 sources

$275MRound$5.0MRound$8.1MRound

Latest round: Round, $8.1MAug 2026
Biggest round: $275MRound · Feb 2022
Step-upi: 1.6×
Investors: 4

See who backed them

The funding story

Each circle is a round, placed by date and sized by amount. The line above is the running total.

20222023202420252026

$275MRound$5.0MRound$8.1MRound

First round: Round, $275M
Biggest round: $275M
Usual gap between rounds: 3.8 years

The rounds

Aug 2026
Round$8.1M
No investor was named in the report.
Filed with the SEC (Form D); no report of this raise yetSEC filing: $8.1M sold, first sale Aug 2026
Oct 2025
Round$5.0M
No investor was named in the report.
Filed with the SEC (Form D); no report of this raise yetSEC filing: $5.0M sold, first sale Oct 2025
Feb 2022
Round$275M4 new
Source recorded

Who was in which round

The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.

Round2022Round2025Round2026

Everyone who backed them

Khosla VenturesVC firm1round

Temasek HoldingsVC firm1round

Vertex VenturesVC firm1round

Franklin TempletonPrivate equity1round

Missing a round, or an investor who was in one? Tell us.

Also claim to have backed them

These 2 firms list Ses as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above.