Who invested in InfoSum

2 rounds we have observed, with the 2 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 & Adtech

Raised 4 months ago

Funding summaryUpdated 26 Oct 2026

$164Mraised across 2 rounds since 2021, from 2 sources

$65MSeries B$99MRound

Latest round: Round, $99MJun 2026
Step-upi: 1.5×
Investors: 2

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

$65MSeries B$99MRound

First round: Series B, $65M
Biggest round: $99M
Between rounds: 4.9 years

The rounds

Jun 2026
Round$99M
No investor was named in the report.
Shares issued, filed with Companies House (SH01); no report of this raise yet
Aug 2021
Series B$65M2 new
- Upfront Ventures
- LocalGlobe
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.

Series B2021Round2026

Upfront Ventures

LocalGlobe

Everyone who backed them

Upfront VenturesVC firm1round

LocalGlobeVC firm1round

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

Also claim to have backed them

This firm lists InfoSum 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.