United States · Funded startup

Who invested in iSpecimen

4 rounds we have observed, with the one investor 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.

Biotech

Raised 6 months ago

Funding summaryUpdated 26 Oct 2026

$18Mraised across 4 rounds since 2012, from 4 sources

$2.0MSeries A$8.0MSeries B$5.5MRound$2.5MRound
Latest round
Round, $2.5MMay 2026
Biggest round
$8.0MSeries B · Sept 2014
Investors
1
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.

20122014201620182020202220242026
$2.0MSeries A$8.0MSeries B$5.5MRound$2.5MRound
First round
Series A, $2.0M
Sept 2012
Biggest round
$8.0M
Series B · Sept 2014
Usual gap between rounds
23 months
the median of 3

The rounds

  1. May 2026
    Round$2.5M1 returning

    Source recordedSEC filing: $2.5M sold

  2. Dec 2025
    Round$5.5M1 new

    Source recordedSEC filing: $5.5M sold, first sale Dec 2025

  3. Sept 2014
    Series B$8.0M

    No investor was named in the report.

    From a historical funding recordSEC filing: $8.6M sold, first sale Aug 2014

  4. Sept 2012
    Series A$2.0M

    No investor was named in the report.

    Reported by masshightech.comSEC filing: $2.0M sold, first sale Aug 2012

Founders and team

From iSpecimen's own website: 4 on the team.

  • Robert LimChief Executive Officer
  • Avtar DhaliwalBoard Member
  • Katharyn FieldBoard Member
  • Katie FieldBoard Member

Everyone who backed them

MassChallengeAccelerator2rounds

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

Quick answers about iSpecimen

Who invested in iSpecimen?

iSpecimen's investors include MassChallenge.

How much has iSpecimen raised?

iSpecimen has raised $18M across 4 rounds since 2012.

When did iSpecimen last raise?

iSpecimen's most recent round was an Undisclosed round of $2.5M in May 2026.

What was iSpecimen's biggest round?

iSpecimen's largest round on record is $8.0M (Series B), in Sept 2014.

Who backed iSpecimen first?

iSpecimen's first round on record, in Dec 2025, was backed by MassChallenge.

What stage is iSpecimen at?

iSpecimen's latest named round is an Undisclosed round, in May 2026.

Where is iSpecimen based?

iSpecimen is based in the United States.

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