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Atlas Venture

Venture Capital · Founded 1984 · Cambridge, United States

#53 Investor Ranking 2026 Top 0.5% of investors worldwide

Early Stage VC in Life Science and Tech

298 Portfolio companies+8% in 5 years
40 Unicorns
5 Decacorns
589 Investments
Jul 2026 Last investment
02 · Biggest holdings

Atlas Venture’s biggest current holdings.

Atlas Venture is a named shareholder in 3 companies. Dealroom estimates those stakes are worth about $814M in total — the disclosed percentage × each company’s latest valuation. The 3 biggest are below, each sized by that estimate.

#CompanyEst. stakeValuationEst. value
  1. 1 WhoopHealth · Decacorn 6% $10.1B $606M
  2. 2 HopperEnterprise Software · Unicorn 4% $5.0B $200M
  3. 3 Secret EscapesTravel · Thoroughbred 2.7% $290M $8M

Estimated value = Atlas Venture’s disclosed ownership % × Dealroom’s latest company valuation; direct named stakes only, exited positions excluded. Figures are indicative, not reported marks. Atlas Venture also appears inside investor groups in DataRobot, Patreon, where a standalone stake isn’t disclosed. See the underlying shareholder registers on Dealroom →

03 · Exits

Atlas Venture’s biggest exits.

Portfolio companies that IPO’d or were acquired at $1B+, with the valuation recorded at exit and — for those still public — their value today. Exit events come from each company’s funding-round history; entry stage from Atlas Venture’s transaction record.

IPO · 2013
Entered Series ANow $30BHealth
$114M IPO · 2004
Entered Series B+Now $27BHealth
$6.5B IPO · 2020
Entered Series ANow $13BGaming
$550M IPO · 2000
Entered SeedNow $13BHealth
$174M IPO · 2020
Entered Series ANow $8.3BHealth
$350M IPO · 2018
Now $6.7BHealth
$35M IPO · 2004
Entered Series B+Now $6.5BHealth
$268M IPO · 2020
Entered Series ANow $4.2BHealth
$433M IPO · 2019
Entered Series ANow $3.8BHealth
$3.3B IPO · 2021
Entered Series B+Now $1.6BMedia
$582M IPO · 2018
Entered Series ANow $3.2BHealth
$1.2B IPO · 2014
Entered SeedNow $2.9BReal Estate
04 · Portfolio analysis

Where Atlas Venture’s portfolio is concentrated.

Distribution of portfolio companies by headquarters country, sector, entry stage and current growth stage. Across all 298 portfolio companies. "Stage entered" is the first priced round the investor joined, derived from the investor’s transaction history.

By countryCount
  1. USA237
  2. UK22
  3. Canada9
  4. Germany9
  5. France6
  6. Italy3
  7. Cuba2
  8. Israel2
  9. Spain2
  10. Sweden2
  11. Switzerland2
  12. Burma (Myanmar)1
By sectorCount
  1. Health130
  2. Enterprise Software41
  3. Media24
  4. Marketing20
  5. Telecom18
  6. Fintech16
  7. Education15
  8. Security13
  9. Semiconductors13
  10. Travel7
  11. Sports6
  12. Energy5
By stage enteredCount
  1. Series A147
  2. Series B+75
  3. Seed72
By growth stageCount
  1. Breakout Stage126
  2. Late Growth106
  3. Early Growth72
  4. Mature2
05 · Portfolio market map

Inside Atlas Venture’s portfolio.

The 60 highest-funded portfolio companies, of 298 tracked.

DataRobot
Enterprise Software · Unicorn
$6.3B
Kailera Therapeutics
Health · Unicorn
$1.9B
Whoop
Health · Decacorn
$10B
DraftKings
Gaming · Decacorn
$13B
Solyndra
Energy
Hopper
Travel · Unicorn
$5.0B
Bicycle Therapeutics
Health
Obsidian Therapeutics
Health
$642M
Nimbus Therapeutics
Health
$840M
Scorpion Therapeutics
Health · Unicorn
$2.5B
Korro Bio
Health
$122M
Day One Biopharmaceuticals
Health · Unicorn
$1.8B
Be Bio
Health
$650M
Patreon
Music · Unicorn
$4.0B
Ikena Oncology
Health
$629M
Viridian Therapeutics
Health · Unicorn
$1.9B
Sionna Therapeutics
Health · Unicorn
$2.1B
SecurityScorecard Inc.
Security
$950M
Secret Escapes
Travel
$290M
Cogent Biosciences
Health · Unicorn
$6.7B
Triveni Bio
Health
$575M
JenaValve Technology
Health
$400M
Chroma Medicine
Health
$540M
Generation Bio
Health
Diagonal Therapeutics
Health
$500M
Mariana Oncology
Health · Unicorn
$1.8B
Aiolos Bio
Health · Unicorn
$1.0B
Xilio Therapeutics
Health
Icera
Telecom
$45M
Kinaset Therapeutics
Health
$412M
Remix Therapeutics
Health
$280M
AAVantgarde Bio
Health
$564M
Affinia Therapeutics
Health
$550M
HotSpot Therapeutics
Health
$400M
Kymera Therapeutics
Health · Unicorn
$8.3B
Arkuda Therapeutics
Health
$256M
Disc Medicine
Health · Unicorn
$2.3B
Carbon Black
Security · Unicorn
$1.9B
Pheon Therapeutics
Health
$480M
Currencycloud
Fintech · Unicorn
$1.0B
Accent Therapeutics
Health
$300M
Antares Therapeutics
Health
$708M
Plastiq
Fintech
Dyne Therapeutics
Health · Unicorn
$4.2B
Unum Therapeutics
Health
$260M
Ellacoya Networks
Transportation
$52M
Third Harmonic Bio
Health
FreshBooks
Fintech · Unicorn
$1.0B
Magenta Therapeutics
Health
Q32 Bio
Health
$362M
Spero Therapeutics
Health
$20M
Vig­il Neu­ro­science
Health
$321M
Translate Bio
Health · Unicorn
$3.2B
Akero Therapeutics
Health · Unicorn
$3.8B
Lilliputian Systems
Energy
$160M
Zafgen
Health
$347M
K36 Therapeutics
Health
$280M
MorphoSys
Health · Unicorn
$2.7B
Earnest
Fintech
$155M
Yuantai Technology Industrial
Energy
$64M
06 · Portfolio founders

Where Atlas Venture’s portfolio founders come from.

126 founders across the 100 highest-funded portfolio companies — by current location, university attended, and the companies they worked at before founding. Sourced from the founder records the API links to each portfolio company.

LocationCount
  1. United States94
  2. United Kingdom10
  3. Canada4
  4. Germany3
  5. Australia2
  6. France2
  7. Indonesia2
  8. Italy1
  9. Netherlands1
UniversityCount
  1. Harvard University12
  2. Massachusetts Institute of Technology10
  3. Stanford University5
  4. Columbia University4
  5. Stanford University Graduate School of Business4
  6. Dartmouth College3
  7. MIT Sloan School of Management3
  8. Penn State University3
  9. University of Oxford3
  10. University of Pennsylvania3
Previous companyCount
  1. Atlas Venture7
  2. Harvard Medical School4
  3. Merck & Co.4
  4. Novartis4
  5. Biogen3
  6. Scripps Translational Science Institute3
  7. Takeda Oncology3
  8. Vistaprint3
  9. Alantos Pharmaceuticals2
  10. Bicycle Therapeutics2