United States · Series C startup

Who invested in Flux

3 rounds we have observed, with the 7 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.

Advertising & AdtechAICloudFintech

Raised 6 months ago

Funding summaryUpdated 26 Oct 2026

$55Mraised across 3 rounds since 2025, from 3 sources

$17MRound$38MSeries C
Latest round
Series C, $38MMay 2026
Step-upi
2.2×
Investors
7
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.

2026
?Venture$17MRound$38MSeries C
First round
Venture
Dec 2025
Biggest round
$38M
Series C · May 2026
Usual gap between rounds
3 months
the median of 2
FluxInformation technology & services1 / 10Their pitch deckFlux's pitch deck, 10 slidesEach slide read for what it argues, against the decks that raised at the same stage.

The rounds

  1. May 2026
  2. Mar 2026
    Round$17M

    No investor was named in the report.

    Reported by Ventureburn

  3. Dec 2025
    VentureAmount undisclosed3 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.

Everyone who backed them

Salesforce VenturesCorporate VC1round
Liquid 2 VenturesVC firm1round
8VCVC firm1round
NTT DOCOMO VenturesAccelerator1round

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

Quick answers about Flux

Who invested in Flux?

Flux's investors include Salesforce Ventures, Liquid 2 Ventures, Bain Capital Ventures, 8VC and Mizuho Corporate Bank, and 2 more on record.

How much has Flux raised?

Flux has raised $55M across 3 rounds since 2025. One round did not disclose an amount, so the total is a floor.

When did Flux last raise?

Flux's most recent round was a Series C of $38M in May 2026.

What was Flux's biggest round?

Its most recent round, $38M in May 2026, is also its largest on record.

Who backed Flux first?

Flux's first round on record, in Dec 2025, was backed by Liquid 2 Ventures, Bain Capital Ventures and 8VC.

What stage is Flux at?

Flux's latest named round is a Series C, in May 2026.

Where is Flux based?

Flux is based in the United States.

Companies like Flux

In the same sector, and raised in the last eighteen months.

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