Investors / United States / Atlas Venture
Atlas Venture
Venture capital · Cambridge, MA, United States · North America
Atlas Venture creates and builds biotechnology companies, partnering with life science entrepreneurs to translate science into medicines. It has operated for over 30 years and runs an incubator from which it has launched startups.
Invests inHealthcare & Biotech
In its own wordsbiotechlife sciencestherapeuticsincubator
Your fit with Atlas Venture
Four questions about your startup
See how your round matches what it backs, point by point.
Or find every investor that fitsAtlas Venture lists 52 checked portfolio companies on its own site and is named in 11 funding rounds, 1 of them as lead. Its most frequent entry is Series B, 73% of the companies with a known first round. Its largest themes are Healthcare & Biotech (93%), Industrial & Manufacturing (2%) and Robotics & Hardware (2%). 80% of its companies are based in United States. It invests most often alongside RA Capital, Omega Funds and 5AM Ventures.
Counts come from funding rounds that name Atlas Venture, complete from mid-2025: earlier rounds appear only when they were reported later. Round amounts and full round histories are on Fundup AI.
Round figures show recent activity, not Atlas Venture's whole history. Rounds on record name 11 companies; its own site lists 52. Funding rounds are complete from mid-2025, so counts and the yearly trend undercount a firm that invested before then. The portfolio, themes and places come from its own site and are not affected.
Entry stage
share of companies by the stage of its first roundAtlas Venture does not state its stages on its site, so only what it does is shown.
Show as a table
| Value | |
|---|---|
| Pre-seed | 0% |
| Seed | 9% |
| Series A | 9% |
| Series B | 73% |
| Growth | 9% |
Activity by year
rounds it joined, last 10 yearsShow as a table
| Total | Rounds it led | |
|---|---|---|
| '17 | 0 | 0 |
| '18 | 0 | 0 |
| '19 | 0 | 0 |
| '20 | 0 | 0 |
| '21 | 0 | 0 |
| '22 | 0 | 0 |
| '23 | 0 | 0 |
| '24 | 1 | 0 |
| '25 | 5 | 0 |
| '26 | 5 | 1 |
Investor profile
percentile among all firmsShow as a table
| Measure | Percentile of all firms | Value |
|---|---|---|
| Portfolio size | 85th | 52 companies |
| Recent activity | 89th | 6 rounds in 12 months |
| Early stage | 55th | 9% of entries at pre-seed or seed |
| Evidence | 84th | 13% of companies confirmed by a round |
| Sector focus | 96th | 93% in its largest sector |
| Reach | 84th | 6 countries |
Invests most often with
firms sharing its portfolio companiesShow as a table
| Share | |
|---|---|
| RA Capital | 10 |
| Omega Funds | 6 |
| 5AM Ventures | 5 |
| Foresite Capital | 5 |
| Sanofi Ventures | 5 |
| ARCH Venture Partners | 4 |
| Avoro Capital Advisors | 4 |
| Frazier Life Sciences | 4 |
Its portfolio companies
where they are based, and what their own sites showSite status
- Site answers4892%
- No longer answers00%
- Points to another company48%
- Parked or sold domain00%
A site that stops answering three checks in a row is counted as no longer answering; that is not proof of closure. A site that points to another company is often an acquisition.
Investment themes
share of its checked companiesThis firmAll checked companies
Show as a table
| This firm | All checked companies | |
|---|---|---|
| Healthcare & Biotech | 93% | 15% |
| Industrial & Manufacturing | 2% | 7% |
| Robotics & Hardware | 2% | 1% |
| AI & Machine Learning | 2% | 18% |
| Cybersecurity | 2% | 4% |
Co-investor network
who it backs companies with, and who they back togetherCompare Atlas Venture head to head
portfolio size, rounds, entry stages, themes and the companies both backThree or more firms at once: portfolio overlap.
Recent portfolio activity
when companies last raised with Atlas Venture| Date | Company | Stage |
|---|---|---|
| 7 Oct 2026 | Series B | |
| 10 Jun 2026 | Series B | |
| 14 Jan 2026 | Series A Led | |
| 10 Jan 2026 | Series B | |
| 8 Jan 2026 | Series B | |
| 3 Dec 2025 | Series B | |
| 18 Nov 2025 | Series B | |
| 4 Nov 2025 | Series B |
Round details for Atlas Venture
Amounts, full round histories and every co-investor in Atlas Venture's rounds are on Fundup AI. VCinfo covers investors and their portfolios.
Portfolio
52 companies checked against their own sites| Company | What it does | Themes | First round with it | Evidence |
|---|---|---|---|---|
| Nov 2025Series B | Funding round | |||
| Accent Therapeutics develops small molecule therapeutics for patients living with cancer | Healthcare & Biotech | Portfolio page | ||
| Affinia Therapeutics develops gene therapies, specifically adeno-associated virus (AAV) gene therapy, for diseases such as BAG3-associated dilated cardiomyopathy | Healthcare & Biotech | Oct 2025Series C+ | Page + round | |
Healthcare & Biotech | Portfolio page | |||
| Akero Therapeutics is pioneering novel therapies to transform the lives of people living with serious metabolic diseases | Healthcare & Biotech | Portfolio page | ||
| Alnylam Pharmaceuticals develops RNAi therapeutics. | Healthcare & Biotech | Portfolio page | ||
| Antares Therapeutics develops precision medicines for patients | Healthcare & Biotech | Portfolio page | ||
| Bicycle Therapeutics is developing precision-guided therapeutics to target solid tumor cancers and other therapeutic applications | Healthcare & Biotech | Portfolio page | ||
| Caldera Therapeutics is a clinical-stage biotechnology company developing a potential first-in-class bispecific antibody for inflammatory bowel disease and other immune-mediated diseases. | Healthcare & Biotech | Jan 2026Series A | Page + round | |
| Cogent Biosciences conducts clinical trials and develops treatments for diseases such as Systemic Mastocytosis and Gastrointestinal Stromal Tumors. | Healthcare & Biotech | Portfolio page | ||
| Comanche Biopharma is a biopharmaceutical company developing an investigational siRNA medicine for preterm preeclampsia. | Healthcare & Biotech | Portfolio page | ||
| The company develops cancer therapies for children and adults | Healthcare & Biotech | Portfolio page | ||
| deCODE genetics operates the most productive human gene discovery engine in the world, employing discoveries to identify genetic variations associated with human disease | Healthcare & Biotech | Portfolio page | ||
| Diagonal Therapeutics develops clustering antibodies to correct the root cause of genetic diseases | Healthcare & Biotech | Jan 2026Series B | Page + round | |
| Disc Medicine is a company that develops medicines for hematologic diseases | Healthcare & Biotech | Portfolio page | ||
| Dyne Therapeutics develops nucleic acid therapies for rare diseases. | Healthcare & Biotech | Portfolio page | ||
| Ethyreal Bio is dedicated to improving the lives of people with Thyroid Eye Disease and Graves’ Disease | Healthcare & Biotech | Jun 2026Series B | Page + round | |
| Exelixis is a company that treats cancer and develops medicines, including biotherapeutics and small molecule programs, for the treatment of cancer. | Healthcare & Biotech | Portfolio page | ||
| FloxMind coordinates robots in warehouses as a managed platform | Industrial & ManufacturingRobotics & Hardware | Aug 2024Seed | Funding round | |
Healthcare & Biotech | Portfolio page |
About this data
site last read 5 Nov 2026- Site
- atlasventure.com
- Last read
- 5 Nov 2026
- Watching since
- 6 Nov 2026
- Rounds since
- 6 Aug 2024
- Companies checked
- 52
Rates come from what VCinfo has observed since observation_start. Firms tend to remove companies that closed, so early rates understate reality. A company leaving a portfolio page does not mean it closed or exited. An unreachable site means our checks failed, nothing more.
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