Fundraising Fox

Atomwise

San Francisco, US · Founded 2015 · Delaware corporation · 14 employees on LinkedIn · 12 known investors

Atomwise uses artificial intelligence and machine learning to discover novel small-molecule drugs, with a current focus on developing treatments for immune and inflammatory diseases.

Also known as Atomwise, Inc.

Founders & leadership

Atomwise was founded in 2015 by Izhar Wallach and Abraham Heifets.

IW
Izhar WallachinCo-founder
AH
Abraham HeifetsCo-founder
YZYan Zhao
Yan ZhaoinExecutive
SW
Stephen WorlandExecutive

Board

RMRobert Mittendorff
Robert Mittendorffin𝕏Board directorGeneral Partner at B4 Capital
ASAdam Seabrook
Adam Seabrookin𝕏Board ObserverPartner at B4 Capital
GT
Gavin TeoBoard director
MOMatt Ocko
Matt Ockoin𝕏Board directorFounder and Managing Partner at DCVC (Data Collective)
KS
Kiersten Steadin𝕏Board directorManaging Partner, DCVC Bio at DCVC (Data Collective)
LM
Linda MaxwellBoard director
MV
Mike VarneyBoard director

Investors · 12

Funding

SEC filings, press & company announcements

$238.6M disclosed across 4 of 6 rounds · 2018–2026

$19.8MraisedMar 2026 · 5 investors · Biotechnology
Rule 506(b)
Officers, directors & promoters on the filing
  • Stephen WorlandExecutive Officer, Director
  • Adam SeabrookDirector
  • Izhar WallachDirector
  • Yan ZhaoExecutive Officer
  • Mike VarneyDirector
  • Robert MittendorffDirector
  • Linda MaxwellDirector
Offering amount
$35M
Amount sold
$19.8M
First sale
Mar 2026
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
$44.3MraisedMar 2025 · 19 investors · Biotechnology
Rule 506(b)
Officers, directors & promoters on the filing
  • Robert MittendorffDirector
  • Adam SeabrookDirector
  • Linda MaxwellDirector
  • Mike VarneyDirector
  • Izhar WallachExecutive Officer, Director
  • Yan ZhaoExecutive Officer
  • Stephen WorlandExecutive Officer, Director
Offering amount
$50M
Amount sold
$44.3M
First sale
Mar 2024
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
$123MraisedAug 2020 · 25 investors · Biotechnology
Rule 506(b)
Officers, directors & promoters on the filing
  • Izhar WallachExecutive Officer, Director
  • Raj GangulyDirector
  • Abraham HeifetsExecutive Officer, Director
  • Matt OckoDirector
  • Han LimExecutive Officer
Offering amount
$127M
Amount sold
$123M
First sale
Jun 2020
Incorporated
Corporation, Delaware, 2015
Federal exemptions
06b
Full filing on SEC EDGAR ↗
$51.5MraisedJul 2018 · 31 investors · Biotechnology
Rule 506(b)
Officers, directors & promoters on the filing
  • Gavin TeoDirector
  • Matt OckoDirector
  • Kiersten SteadDirector
  • Izhar WallachExecutive Officer, Director, Promoter
  • Abraham HeifetsExecutive Officer, Director, Promoter
Offering amount
$51.5M
Amount sold
$51.5M
First sale
Feb 2018
Incorporated
Corporation, Delaware, 2015
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

Atomwise, Inc. is a San Francisco-based drug discovery company that uses deep learning to find novel small molecules. Its platform, described on the company's site as an AI "superplatform," is used to search large regions of chemical space for drug-like molecules and to predict small-molecule binding affinity for protein targets. Its AI system, AtomNet, is described as built for drug discovery and as covering more than 16 billion molecules available for virtual screening.

The company runs an internal pipeline in addition to external work. Programs generated from its platform are positioned as having first- and best-in-class potential in immune and inflammatory diseases. Its discovery portfolio is described as combining an internally developed pipeline with joint ventures and academic and biopharma development partnerships. The company is classified across pharmaceuticals, biotechnology, drug discovery technologies and artificial intelligence sectors.

Founding story

Third-party profiles describe Atomwise as co-founded by Abraham Heifets (CEO), Izhar Wallach (CTO) and Alexander Levy (COO), with a founding date reported as 2012 by some sources.

Business model

Atomwise combines internal drug development with partnered discovery work: it applies its machine-learning platform to targets on behalf of pharmaceutical and agrochemical companies and academic collaborators, and also advances its own pipeline of small-molecule programs, including through joint ventures.

Traction

Described as performing hundreds of projects per year and working with more than 200 universities and hospitals across 40 countries; named partners include BridgeBio, Hansoh, Tulane University, Lilly, Bayer and AbbVie.

Latest developments

The company's site highlights an internal program portfolio in immune and inflammatory diseases generated from its machine-learning platform.

Full profile — market position, technology, go-to-market, geography

Market position

Positioned within the AI-for-drug-discovery segment, running hundreds of discovery projects per year with pharmaceutical, agrochemical and academic partners, and backed by institutional and strategic investors.

Technology

Deep learning algorithms for structure-based small-molecule drug discovery, run on high-performance/supercomputing hardware. The AtomNet platform performs virtual screening across a library described as containing more than 16 billion molecules and predicts small-molecule binding affinity.

Go-to-market

Partnership-led: paid and collaborative discovery projects with pharmaceutical and agrochemical companies, joint ventures, and screening collaborations with universities and hospitals, alongside internal program development.

Large pharmaceutical and agrochemical companies, biopharma development partners, and academic and hospital research groups; the company is described as working with more than 200 universities and hospitals in 40 countries.

Geography

Headquartered in San Francisco, California, United States, with academic and hospital collaborations spanning 40 countries.

Compiled by commissioned research from 6 cited public sources — announcements, filings, and press listed under research sources below.

Key figures

latest reported
Employee countJan 202661 to 100
Molecules available for virtual screening on AtomNetJan 202616,000,000,000 molecules
Total funding (third-party estimate)Jan 2026$175M
University and hospital partnersJan 2026more than 200, across 40 countries

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

Competitors · 6

by search overlap

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

Legal entities · 1

corporate structure
AtomwiseDelaware

In the news

Research sources · 6

primary sources listed

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

Frequently asked questions

What does Atomwise do?
Atomwise applies machine learning to structure-based small-molecule drug discovery, focused on immune and inflammatory diseases.
Who founded Atomwise?
Atomwise was founded by Izhar Wallach, Abraham Heifets in 2015.
Who are Atomwise's investors?
Atomwise's investors include Aurum Venture Partners, B Capital Group, Cerity Partners Ventures, Creative Destruction Lab (CDL), Draper Associates, Threshold Ventures, Unruly Capital, Vickers Venture Partners and 4 more.
How much funding has Atomwise raised?
Atomwise has disclosed $238.6M raised across 4 of its 6 known rounds.
Where is Atomwise headquartered?
Atomwise is headquartered in San Francisco, US.