Fundraising Fox

Insitro

Unicorn · $2.2B

South San Francisco, US · Founded 2018 · Delaware corporation · 14 known investors

insitro.com

insitro is a drug discovery and development company that uses machine learning and cellular data to identify therapeutic insights and accelerate the creation of new medicines. The company serves patients and pharmaceutical development by integrating in vitro lab data with human clinical data to decode biology and unlock transformative treatments.

Also known as insitro

AI & Machine LearningBiotech

Founders & leadership

Insitro was founded in 2018 by Daphne Koller.

DKDaphne Koller
Daphne KollerinCEO & Founder
DV
Duane ValzGeneral Counsel
MRMary Rozenman
Mary RozenmanChief Financial Officer

Board

RNRobert Nelsen
Robert Nelsen𝕏Board directorCo-founder & Managing Director at ARCH Venture Partners
VPVijay Pande
Vijay Pandein𝕏Member Board Of Directors2018–2025General Partner, Andreessen Horowitz at Propagator Ventures

Investors · 14

Also in the syndicate · 2

Softbank Investment AdvisorsT. Rowe Price Associates

Reported raises · per SEC filings

Form D private placements

$143.2M disclosed across 1 of 2 rounds · 2020–2021

$143.2MraisedMay 2020 · 26 investors · Biotechnology
Rule 506(b)
Officers, directors & promoters on the filing
  • Robert NelsenDirector
  • Vijay PandeDirector
  • Daphne KollerExecutive Officer, Director
  • Duane ValzExecutive Officer
  • Mary RozenmanExecutive Officer
Offering amount
$143.2M
Amount sold
$143.2M
First sale
Mar 2020
Incorporated
Corporation, Delaware, 2018
Federal exemptions
06b
Full filing on SEC EDGAR ↗

Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.

Company profile

researched Aug 2026

insitro is a machine learning-driven drug discovery and development company based in South San Francisco, California, founded in 2018 by Daphne Koller. The company generates and aggregates large-scale, multimodal biological datasets and applies machine learning to them with the stated aim of building an integrated model of causal human biology and translating the resulting insights into therapeutics. Its public materials describe combining more than 20 petabytes of automated cellular experiment data with population-scale human genetics.

The company describes two named platform components. "Virtual Human" is presented as a genetically anchored causal AI engine built on an integrated corpus of human clinical and cellular data, used to identify causal disease targets before candidate optimization. "TherML" is described as a modality-agnostic, AI-driven therapeutics design engine spanning small molecules, oligonucleotides, and complex biologics, intended to match a modality to each target and indication. Earlier company communications framed the approach around three pillars: machine learning-enabled statistical genetics on deeply phenotyped human cohorts, predictive cell-based disease models, and machine learning-enabled therapeutics design.

As of a January 2024 report, insitro had more than 260 employees across 107,000 square feet of laboratory and office space and had raised more than $643 million in venture capital according to PitchBook. The company's pipeline has been described as spanning therapeutic areas including neuroscience and liver disease, advanced both internally and through partnerships.

Compiled by commissioned research from 8 cited public sources — announcements, filings, and press listed under research sources below.

Key figures

latest reported
Cellular experiment data volumeJan 202520 petabytes
EmployeesJan 2024260 people
Laboratory and office spaceJan 2024107,000 square feet
Total raisedJan 2024$743M
Total venture capital raisedJan 2024$643M
ValuationJan 2024$2.2B

Company-reported or press-reported figures, each dated to when it was claimed — not independently audited.

Founder mafia

2 people who came through Insitro went on to found or lead other companies.

Competitors · 2

by search overlap

Companies competing with Insitro for the same Google search keywords, organic and paid, via search-intersection analysis.

Timeline · 6

launches, deals, and filings
Mar 2021
Acquisition of Haystack Sciences

Referenced in the Series C announcement as a step from targets to medicines: insitro acquired Haystack Sciences, a high-throughput chemistry platform enabling machine-learning-driven molecular design. The announcement does not state the acquisition date.

source ↗

Mar 2021
insitro announces $400 million Series C financing led by CPP Investments

insitro announced a $400 million Series C led by Canada Pension Plan Investment Board, with participation from Andreessen Horowitz, T. Rowe Price, Casdin Capital, BlackRock, ARCH Venture Partners, Foresite Capital, GV, Third Rock Ventures, Two Sigma Ventures, HOF Capital, Alexandria Venture Investments, Temasek, Softbank Investment Advisors, an undisclosed global investment group and an undisclosed US payer provider health system. Proceeds were designated to expand platform capabilities and pipeline, access enabling datasets and technologies, and potentially in-license assets. The financing was expected to close in the first full week of April 2021.

$400M source ↗

Mar 2021
Paul McCracken of CPP Investments to join board of directors

As part of the Series C financing, Paul McCracken, Ph.D., Senior Portfolio Manager, Thematic Investing at CPP Investments, was to join insitro's board of directors at the closing of the financing.

source ↗

Mar 2021
Roger Perlmutter recruited to insitro board of directors

In remarks accompanying the Series C announcement, CEO Daphne Koller stated that the company had recruited Dr. Roger Perlmutter to its board to help guide drug discovery efforts; Perlmutter is quoted as an insitro board member.

source ↗

Mar 2021
Collaboration with Bristol Myers Squibb in ALS

insitro reported putting in place a collaboration with Bristol Myers Squibb in amyotrophic lateral sclerosis (ALS), described as established as of the March 2021 announcement.

source ↗

Mar 2021
Collaboration with Gilead in NASH

insitro reported building out and demonstrating its target discovery platform in a collaboration with Gilead in NASH and receiving the first of its operational milestone payments. The collaboration is described as established as of the March 2021 announcement.

source ↗

Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.

Legal entities · 1

corporate structure
InsitroDelaware

In the news

Research sources · 8

primary sources listed

8 public sources were cited for this profile; the first-party ones are listed here.

Frequently asked questions

What does Insitro do?
insitro applies machine learning to cellular and human clinical data to identify causal disease targets and design therapeutics.
Who founded Insitro?
Insitro was founded by Daphne Koller in 2018.
Who are Insitro's investors?
Insitro's investors include Andreessen Horowitz, ARCH Venture Partners, Foresite Capital, GV (Google Ventures), HOF Capital, SoftBank Vision Fund, Bezos Expeditions, BlackRock and 4 more.
How much funding has Insitro raised?
Insitro has disclosed $143.2M raised across 1 of its 2 known rounds.
Where is Insitro headquartered?
Insitro is headquartered in South San Francisco, US.