United States · Series A startup

Who invested in Solstice

4 rounds we have observed, with the 9 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.

AICleantechMartechPharma

Raised 5 months ago

Funding summaryUpdated 5 Nov 2026

$22Mraised across 4 rounds since 2013, from 5 sources

$366KRound$516KSeed$21MSeries A
Latest round
Series A, $21MMay 2026
Led by
Transformation Capital
Step-upi
40.7×
Investors
9 (1 led)
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.

201520172019202120232025
$366KRound$516KSeed?Venture$21MSeries A
First round
Round, $366K
Nov 2013
Biggest round
$21M
Series A · May 2026
Usual gap between rounds
10.6 years
the median of 2

The rounds

  1. May 2026
    Series A$21M5 new

    Reported by Ventureburn and 1 otherSEC filing: $121M sold, first sale Feb 2026

  2. Jul 2024
  3. Nov 2013
    Seed$516K

    No investor was named in the report.

    From a historical funding recordSEC filing: $370K sold, first sale Nov 2013

  4. Nov 2013
    Round$366K

    No investor was named in the report.

    From a historical funding recordSEC filing: $370K sold, first sale Nov 2013

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.

Everyone who backed them

Transformation CapitalVC firm1round, led 1
TechstarsVC firm1round
Pareto HoldingsVC firm1round
Edward LandoAngel1round
Elemental ImpactVC firm1round
Powerhouse VenturesVC firm1round
Twelve BelowVC firm1round
Virtue VenturesVC firm1round

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

Also claim to have backed them

This firm lists Solstice as a portfolio company on their own website, but no report of a round names it. They are the firms' own claims, kept apart from the rounds above.

VirtueVC firmPer its own site

Quick answers about Solstice

Who invested in Solstice?

Solstice's investors include Transformation Capital, Techstars, Right Side Capital Management, Pareto Holdings and Edward Lando, and 4 more on record. Transformation Capital led its latest round.

How much has Solstice raised?

Solstice has raised $22M across 4 rounds since 2013. One round did not disclose an amount, so the total is a floor.

When did Solstice last raise?

Solstice's most recent round was a Series A of $21M in May 2026, led by Transformation Capital.

What was Solstice's biggest round?

Its most recent round, $21M in May 2026, is also its largest on record.

Who backed Solstice first?

Solstice's first round on record, in Jul 2024, was backed by Techstars, Right Side Capital Management and Elemental Impact and 1 others.

What stage is Solstice at?

Solstice's latest named round is a Series A, in May 2026.

Where is Solstice based?

Solstice is based in the United States.

Who led Solstice's rounds?

Transformation Capital led the Series A in 2026.

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