United States · Series A startup

Who invested in Marble

6 rounds we have observed, with the 17 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.

Professional ServicesCybersecurityFintechRegtech

Raised 1 month agoY Combinator: S21

Funding summaryUpdated 26 Oct 2026

$64Mraised across 6 rounds since 2022, from 7 sources

$2.0MSeed$4.2MSeed$11MSeries A$9.0MSeed$30MSeries B$7.4MSeries A

Latest round: Series A, $7.4MSept 2026
Led by: Smartfin
Biggest round: $30MSeries B · Apr 2026
Investors: 17 (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.

2023202420252026

$2.0MSeed$4.2MSeed$9.0MSeed$30MSeries B$7.4MSeries A

First round: Seed, $2.0M
Biggest round: $30M
Usual gap between rounds: 6 months

The rounds

Sept 2026
Series A$7.4M5 new
- SmartfinLead
- Passion Capital
- 42CAP
- Hexa
- Adnexus
Reported by Smartfin
Apr 2026
Series B$30M1 returning
- Invest Nebraska
Source recordedSEC filing: $14M sold
Dec 2025
Seed$9.0M5 new
Source recorded and 1 other
Dec 2022
Series A$11M1 new
- Invest Nebraska
Source recorded
Nov 2022
Seed$4.2M3 new
Source recorded
Aug 2022
Seed$2.0M3 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.

Seed2022Seed2022Series A2022Seed2025Series B2026Series A2026

Everyone who backed them

Invest NebraskaGovernment2rounds

SmartfinVC firm1round, led 1

Y CombinatorAccelerator1round

Alumni VenturesVC firm1round

Innovate UKVC firm1round

Goodwater CapitalVC firm1round

SFC CapitalAngel network1round

Entrepreneur FirstAccelerator1round

Unpopular VenturesVC firm1round

Susa VenturesVC firm1round

Passion CapitalVC firm1round

1984 VenturesVC firm1round

NATO DIANAInvestment firm1round

42CAPVC firm1round

Blue CollectiveVC firm1round

HexaVenture studio1round

AdnexusCorporate VC1round

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

Also claim to have backed them

These 4 firms list Marble 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.

Kibo InvestFamily officePer its own site

ED3N VenturesVenture studioPer its own site

Enfuro VenturesVC firmPer its own site

Scala VenturesVC firmPer its own site

Quick answers about Marble

Who invested in Marble?

Marble's investors include Invest Nebraska, Smartfin, Y Combinator, Alumni Ventures and Innovate UK, and 12 more on record. Smartfin led its latest round.