United Kingdom · Series B startup

Who invested in Attest

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.

Big Data & Analytics

Funding summaryUpdated 26 Oct 2026

$81Mraised across 3 rounds since 2015, from 3 sources

$1.0MSeed$16MSeries A$64MSeries B
Latest round
Series B, $64MOct 2021
Step-upi
4×
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.

201620172018201920202021
$1.0MSeed$16MSeries A$64MSeries B
First round
Seed, $1.0M
Oct 2015
Biggest round
$64M
Series B · Oct 2021
Usual gap between rounds
3.5 years
the median of 2

The rounds

  1. Oct 2021
    Series B$64M2 new1 returning

    Source recorded

  2. Apr 2019
    Series A$16M1 new1 returning

    Reported by FinSMEs

  3. Oct 2015
    Seed$1.0M1 new

    From a historical funding record

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.

Seed2015Series A2019Series B2021Episode 1New Enterprise AssociatesAlumni VenturesNEA/ Oxford

Everyone who backed them

Episode 1VC firm3rounds
Alumni VenturesVC firm1round
NEA/ Oxfordno record of our own yet1round

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

Quick answers about Attest

Who invested in Attest?

Attest's investors include Episode 1, New Enterprise Associates, Alumni Ventures and NEA/ Oxford.

How much has Attest raised?

Attest has raised $81M across 3 rounds since 2015.

When did Attest last raise?

Attest's most recent round was a Series B of $64M in Oct 2021.

What was Attest's biggest round?

Its most recent round, $64M in Oct 2021, is also its largest on record.

Who backed Attest first?

Attest's first round on record, in Oct 2015, was backed by Episode 1.

What stage is Attest at?

Attest's latest named round is a Series B, in Oct 2021.

Where is Attest based?

Attest is based in the United Kingdom.

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