# iSpecimen funding: rounds and investors

> iSpecimen has raised $18M across 4 rounds since 2012. Investors include MassChallenge. Every round with its source.

Source: https://millionrounds.com/company/ispecimen (Millionrounds; every figure on the page links to its filing or article)

United States · [Funded startup](https://millionrounds.com/companies)

# 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 summary Updated 26 Oct 2026

**$18M** raised across 4 rounds since 2012, from 4 sources

**$2.0M** Series A **$8.0M** Series B **$5.5M** Round **$2.5M** Round

- **Latest round:** Round, $2.5M May 2026
- **Biggest round:** $8.0M Series 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.

2012 2014 2016 2018 2020 2022 2024 2026

**$2.0M** Series A

**$8.0M** Series B

**$5.5M** Round

**$2.5M** Round

- **First round:** Series A, $2.0M
- **Biggest round:** $8.0M
- **Usual gap between rounds:** 23 months

## The rounds

- **May 2026** Round **$2.5M** *1 returning* [MassChallenge](https://millionrounds.com/fund/masschallenge) Source recorded SEC filing: $2.5M sold
- **Dec 2025** Round **$5.5M** *1 new* [MassChallenge](https://millionrounds.com/fund/masschallenge) Source recorded SEC filing: $5.5M sold, first sale Dec 2025
- **Sept 2014** Series B **$8.0M** No investor was named in the report. From a historical funding record SEC filing: $8.6M sold, first sale Aug 2014
- **Sept 2012** Series A **$2.0M** No investor was named in the report. Reported by masshightech.com SEC filing: $2.0M sold, first sale Aug 2012

## Founders and team

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

- **Robert Lim** Chief Executive Officer
- **Avtar Dhaliwal** Board Member
- **Katharyn Field** Board Member
- **Katie Field** Board Member

## Everyone who backed them

[MassChallenge](https://millionrounds.com/fund/masschallenge) Accelerator **2** rounds

Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=ispecimen).

## 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.

## Companies like iSpecimen

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

[**Star Therapeutics** $325M · Oct 2026](https://millionrounds.com/company/star-therapeutics)[**Promaxo** $106M · Oct 2026](https://millionrounds.com/company/promaxo)[**Prolific Machines** $105M · Oct 2026](https://millionrounds.com/company/prolific-machines)[**IMIO** $19M · Oct 2026](https://millionrounds.com/company/imio)[**Clinical Ink** $24M · Oct 2026](https://millionrounds.com/company/clinical-ink)[**Rejuvenate Bio** $13M · Oct 2026](https://millionrounds.com/company/rejuvenate-bio)

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