# Top 50 Startups in Boston by Funding (2026)

> The 50 best-funded startups in Boston, ranked by total funding raised: $21B combined. With founding year, headquarters and each company's rounds.

Source: https://millionrounds.com/top-lists/startups-boston (Millionrounds; every figure on the page links to its filing or article)

- 1 [**Ramp** Ramp is a financial operations and spend management platform based in New York City, founded in 2019.](https://millionrounds.com/company/ramp) Ramp is a financial operations and spend management platform based in New York City, founded in 2019. *Founded* 2006 Boston, United States **$4.5B** last round Oct 2026
- 2 [**DraftKings** DraftKings provides online daily and weekly fantasy sports contests for cash prizes in major sports.](https://millionrounds.com/company/draftkings) DraftKings provides online daily and weekly fantasy sports contests for cash prizes in major sports. *Founded* 2011 Boston, United States **$1.5B** last round Oct 2025
- 3 [**WHOOP** WHOOP is a performance optimization system that tracks athlete recovery, training, and sleeping hours to help boost performance.](https://millionrounds.com/company/whoop) WHOOP is a performance optimization system that tracks athlete recovery, training, and sleeping hours to help boost performance. *Founded* 2012 Boston, United States **$1.3B** last round Mar 2026
- 4 [**Intarcia Therapeutics** Intarcia Therapeutics develops therapies for diseases that require long-term chronic treatment.](https://millionrounds.com/company/intarcia-therapeutics) Intarcia Therapeutics develops therapies for diseases that require long-term chronic treatment. *Founded* 1997 Boston, United States **$1.1B** last round Sept 2016
- 5 [**West Shore** West Shore is a Boston-based real estate investment firm focused on the management & acquisition of multifamily assets.](https://millionrounds.com/company/west-shore) West Shore is a Boston-based real estate investment firm focused on the management & acquisition of multifamily assets. *Founded* 2016 Boston, United States **$600M** last round Oct 2025
- 6 [**DataRobot** DataRobot provides AI technology and ROI enablement services to global enterprises.](https://millionrounds.com/company/datarobot) DataRobot provides AI technology and ROI enablement services to global enterprises. *Founded* 2012 Boston, United States **$591M** last round Apr 2023
- 7 [**Cerevel Therapeutics** Cerevel Therapeutics is a biopharmaceutical company that develops drugs to treat neurological and neuropsychiatric disorders.](https://millionrounds.com/company/cerevel-therapeutics) Cerevel Therapeutics is a biopharmaceutical company that develops drugs to treat neurological and neuropsychiatric disorders. *Founded* 2018 Boston, United States **$450M** last round Oct 2023
- 8 [**Wave Life Sciences** Wave Life Sciences is a clinical-stage RNA medicines company committed to delivering life-changing treatments for people battling diseases](https://millionrounds.com/company/wave-life-sciences) Wave Life Sciences is a clinical-stage RNA medicines company committed to delivering life-changing treatments for people battling diseases *Founded* 2012 Boston, United States **$434M** last round Dec 2025
- 9 [**Greenvolt Power** Greenvolt Power is a renewable energy platform that develops and operates onshore Wind and photovoltaic installations.](https://millionrounds.com/company/greenvolt-power) Greenvolt Power is a renewable energy platform that develops and operates onshore Wind and photovoltaic installations. *Founded* - Boston, United States **$411M** last round Feb 2026
- 10 [**Flywire** Flywire is a payments enablement and software company that simplifies complex payments for its clients and their customers.](https://millionrounds.com/company/flywire) Flywire is a payments enablement and software company that simplifies complex payments for its clients and their customers. *Founded* 2011 Boston, United States **$403M** last round Aug 2023
- 11 [**PathAI** PathAI develops technology that assists pathologists in making accurate diagnoses for every patient, every time.](https://millionrounds.com/company/pathai) PathAI develops technology that assists pathologists in making accurate diagnoses for every patient, every time. *Founded* 2016 Boston, United States **$400M** last round Jan 2022
- 12 [**Social Finance** Social Finance is a Boston-based nonprofit organization founded in 2011 by Sir Ronald Cohen, David Blood, and Tracy Palandjian, who serves as CEO.](https://millionrounds.com/company/social-finance) Social Finance is a Boston-based nonprofit organization founded in 2011 by Sir Ronald Cohen, David Blood, and Tracy Palandjian, who serves as CEO. *Founded* 2011 Boston, United States **$398M** last round Feb 2015
- 13 [**Dutchie** Dutchie is a leading technology platform dedicated to the cannabis industry, founded in 2017 by brothers Ross and Zach Lipson, along with co-founder Samuel Ellis.](https://millionrounds.com/company/dutchie) Dutchie is a leading technology platform dedicated to the cannabis industry, founded in 2017 by brothers Ross and Zach Lipson, along with co-founder Samuel Ellis. *Founded* 2017 Boston, United States **$368M** last round Oct 2021
- 14 [**BitSight** Bitsight is the global leader in cyber risk intelligence, helping teams make informed risk decisions with the industry’s most extensive external security data a](https://millionrounds.com/company/bitsight) Bitsight is the global leader in cyber risk intelligence, helping teams make informed risk decisions with the industry’s most extensive external security data a *Founded* 2011 Boston, United States **$350M** last round Sept 2021
- 15 [**Iora Health** Iora Health is a primary care organization founded in 2010 or 2011, headquartered in Boston, Massachusetts.](https://millionrounds.com/company/iora-health) Iora Health is a primary care organization founded in 2010 or 2011, headquartered in Boston, Massachusetts. *Founded* 2010 Boston, United States **$349M** last round Feb 2020
- 16 [**Klaviyo** Klaviyo is an automation and email platform designed to help grow businesses.](https://millionrounds.com/company/klaviyo) Klaviyo is an automation and email platform designed to help grow businesses. *Founded* 2012 Boston, United States **$347M** last round Aug 2025
- 17 [**Solid Biosciences** Solid Biosciences is a life science company that conducts research for the treatment of Duchenne muscular dystrophy.](https://millionrounds.com/company/solid-biosciences) Solid Biosciences is a life science company that conducts research for the treatment of Duchenne muscular dystrophy. *Founded* 2014 Boston, United States **$333M** last round Mar 2026
- 18 [**Coralogix** Coralogix is a full-stack observability platform founded in 2014, headquartered in Boston, Massachusetts, with additional offices in Ramat Gan, Israel, and San](https://millionrounds.com/company/coralogix) Coralogix is a full-stack observability platform founded in 2014, headquartered in Boston, Massachusetts, with additional offices in Ramat Gan, Israel, and San *Founded* 2014 Boston, United States **$326M** last round Jun 2026
- 19 [**ASI** Air Space Intelligence (ASI) is a software company that develops AI-powered systems for mission-critical operations in commercial aviation, logistics, and defense.](https://millionrounds.com/company/asi) Air Space Intelligence (ASI) is a software company that develops AI-powered systems for mission-critical operations in commercial aviation, logistics, and defense. *Founded* 2018 Boston, United States **$325M** last round Oct 2026
- 20 [**Rhythm Pharmaceuticals** Rhythm is a biopharmaceutical company focused on developing and commercializing peptide therapeutics](https://millionrounds.com/company/rhythm-pharmaceuticals) Rhythm is a biopharmaceutical company focused on developing and commercializing peptide therapeutics *Founded* 2008 Boston, United States **$311M** last round Jul 2025
- 21 [**Stag Industrial** STAG Industrial is a self-administered and self-managed full-service real estate company focused on the acquisition.](https://millionrounds.com/company/stag-industrial) STAG Industrial is a self-administered and self-managed full-service real estate company focused on the acquisition. *Founded* 2010 Boston, United States **$300M** last round Sept 2025
- 22 [**Lendbuzz** Lendbuzz is a car financing platform that helps consumers with thin U.S.](https://millionrounds.com/company/lendbuzz) Lendbuzz is a car financing platform that helps consumers with thin U.S. *Founded* 2015 Boston, United States **$296M** last round Feb 2026
- 23 [**Gilt Groupe** Gilt Groupe provides a shopping website that includes fashion for women, men, and children; home decor and unique activities.](https://millionrounds.com/company/gilt-groupe) Gilt Groupe provides a shopping website that includes fashion for women, men, and children; home decor and unique activities. *Founded* 2007 Boston, United States **$286M** last round Feb 2015
- 24 [**Lookout** Lookout, Inc.](https://millionrounds.com/company/lookout) Lookout, Inc. *Founded* 2007 Boston, United States **$282M** last round Feb 2015
- 25 [**Compass Therapeutics** Compass Therapeutics is a biopharmaceutical company that focuses on drugging the immune system to treat human diseases.](https://millionrounds.com/company/compass-therapeutics) Compass Therapeutics is a biopharmaceutical company that focuses on drugging the immune system to treat human diseases. *Founded* 2014 Boston, United States **$257M** last round Aug 2025
- 26 [**Rapport Therapeutics** Rapport Therapeutics is a clinical-stage biotechnology company that discovers and develops precision medicines for neurological disorders.](https://millionrounds.com/company/rapport-therapeutics) Rapport Therapeutics is a clinical-stage biotechnology company that discovers and develops precision medicines for neurological disorders. *Founded* 2022 Boston, United States **$250M** last round Sept 2025
- 27 [**Swift Current Energy** Swift Current Energy is a renewable energy company that develops and operates clean energy projects.](https://millionrounds.com/company/swift-current-energy) Swift Current Energy is a renewable energy company that develops and operates clean energy projects. *Founded* 2016 Boston, United States **$248M** last round Feb 2026
- 28 [**BlueWave** BlueWave's vision is to protect our planet by transforming access to renewable energy.](https://millionrounds.com/company/bluewave) BlueWave's vision is to protect our planet by transforming access to renewable energy. *Founded* 2010 Boston, United States **$247M** last round Sept 2025
- 29 [**Markley Group** New England's largest and longest operating multi-tenant, mission-critical telecommunications and data center facility.](https://millionrounds.com/company/markley-group) New England's largest and longest operating multi-tenant, mission-critical telecommunications and data center facility. *Founded* 2004 Boston, United States **$240M** last round Apr 2015
- 30 [**Seaport Therapeutics** Seaport Therapeutics operates as a clinical stage biopharmaceutical company.](https://millionrounds.com/company/seaport-therapeutics) Seaport Therapeutics operates as a clinical stage biopharmaceutical company. *Founded* 2024 Boston, United States **$240M** last round Mar 2026
- 31 [**Pear Therapeutics** Pear Therapeutics is a Massachusetts-based prescription digital therapeutic platform that offers solutions such as clinical engagement and patient tracking tool](https://millionrounds.com/company/pear-therapeutics) Pear Therapeutics is a Massachusetts-based prescription digital therapeutic platform that offers solutions such as clinical engagement and patient tracking tool *Founded* 2013 Boston, United States **$239M** last round Dec 2021
- 32 [**Odyssey Therapeutics** Odyssey Therapeutics creates precision immunomodulators and oncology medicines for patients with cancer and inflammatory diseases.](https://millionrounds.com/company/odyssey-therapeutics) Odyssey Therapeutics creates precision immunomodulators and oncology medicines for patients with cancer and inflammatory diseases. *Founded* 2021 Boston, United States **$238M** last round May 2026
- 33 [**QuEra Computing** QuEra Computing is a neutral-atoms-based quantum computing startup, located in Boston, near Harvard University.](https://millionrounds.com/company/quera-computing) QuEra Computing is a neutral-atoms-based quantum computing startup, located in Boston, near Harvard University. *Founded* 2018 Boston, United States **$230M** last round Feb 2025
- 34 [**Solstice Oncology** Solstice Oncology develops immuno-oncology therapies focused on treating and preventing cancer through targeted approaches.](https://millionrounds.com/company/solstice-oncology) Solstice Oncology develops immuno-oncology therapies focused on treating and preventing cancer through targeted approaches. *Founded* - Boston, United States **$225M** last round Sept 2026
- 35 [**Lightelligence** Lightelligence is an optical computing company founded in 2017 as a spin-out from MIT.](https://millionrounds.com/company/lightelligence) Lightelligence is an optical computing company founded in 2017 as a spin-out from MIT. *Founded* 2017 Boston, United States **$220M** last round Sept 2025
- 36 [**Reify Health** Reify Health is a Boston-based company that provides cloud-based software solutions for the clinical trial ecosystem.](https://millionrounds.com/company/reify-health) Reify Health is a Boston-based company that provides cloud-based software solutions for the clinical trial ecosystem. *Founded* 2012 Boston, United States **$220M** last round Apr 2022
- 37 [**ezCater** ezCater is the largest online marketplace for corporate catering in the United States, founded in 2007 by Stefania Mallett and Briscoe Rodgers.](https://millionrounds.com/company/ezcater) ezCater is the largest online marketplace for corporate catering in the United States, founded in 2007 by Stefania Mallett and Briscoe Rodgers. *Founded* 2007 Boston, United States **$220M** last round Apr 2019
- 38 [**Tomorrow.io** Tomorrow.io is a weather intelligence platform that provides real-time weather forecasts.](https://millionrounds.com/company/tomorrow-io) Tomorrow.io is a weather intelligence platform that provides real-time weather forecasts. *Founded* 2016 Boston, United States **$210M** last round May 2026
- 39 [**Creatio** Creatio offers a no-code platform that automates CRM and enterprise workflows.](https://millionrounds.com/company/creatio) Creatio offers a no-code platform that automates CRM and enterprise workflows. *Founded* 2014 Boston, United States **$210M** last round Jun 2026
- 40 [**Verve Therapeutics** Verve Therapeutics is a genetic medicine firm that is developing treatments for cardiovascular disease.](https://millionrounds.com/company/verve-therapeutics) Verve Therapeutics is a genetic medicine firm that is developing treatments for cardiovascular disease. *Founded* 2018 Boston, United States **$202M** last round Nov 2023
- 41 [**BlueSnap** BlueSnap provides an All-in-One Payment Platform designed to accelerate commerce for B2B and B2C businesses.](https://millionrounds.com/company/bluesnap) BlueSnap provides an All-in-One Payment Platform designed to accelerate commerce for B2B and B2C businesses. *Founded* 2002 Boston, United States **$201M** last round Nov 2014
- 42 [**Backlight** Backlight is a global media technology holding company and software developer based in Lexington, Massachusetts.](https://millionrounds.com/company/backlight) Backlight is a global media technology holding company and software developer based in Lexington, Massachusetts. *Founded* 2021 Boston, United States **$200M** last round Apr 2022
- 43 [**Joyn Bio** Joyn Bio is a biotechnology joint venture founded in September 2017 by Leaps by Bayer and Ginkgo Bioworks.](https://millionrounds.com/company/joyn-bio) Joyn Bio is a biotechnology joint venture founded in September 2017 by Leaps by Bayer and Ginkgo Bioworks. *Founded* 2017 Boston, United States **$200M** last round Mar 2018
- 44 [**Blitzy** Blitzy is an innovative enterprise artificial intelligence software company founded in 2023 by Brian Elliott and Sid Pardeshi.](https://millionrounds.com/company/blitzy) Blitzy is an innovative enterprise artificial intelligence software company founded in 2023 by Brian Elliott and Sid Pardeshi. *Founded* 2023 Boston, United States **$200M** last round May 2026
- 45 [**Dewpoint Therapeutics** Dewpoint Therapeutics is a biotech company developing a drug platform that targets biomolecular condensates.](https://millionrounds.com/company/dewpoint-therapeutics) Dewpoint Therapeutics is a biotech company developing a drug platform that targets biomolecular condensates. *Founded* 2018 Boston, United States **$196M** last round Jul 2026
- 46 [**Nexamp** Nexamp provides renewable energy services designed to minimize energy expenses and carbon emissions.](https://millionrounds.com/company/nexamp) Nexamp provides renewable energy services designed to minimize energy expenses and carbon emissions. *Founded* 2007 Boston, United States **$186M** last round Apr 2026
- 47 [**Asimov** Asimov is a biotechnology and synthetic biology company based in Boston, Massachusetts, founded in 2017.](https://millionrounds.com/company/asimov) Asimov is a biotechnology and synthetic biology company based in Boston, Massachusetts, founded in 2017. *Founded* 2017 Boston, United States **$180M** last round Mar 2026
- 48 [**Bit9** About Lambent (formerly Armored Things) Lambent is a Boston-based software company for smart space planning.](https://millionrounds.com/company/bit9) About Lambent (formerly Armored Things) Lambent is a Boston-based software company for smart space planning. *Founded* - Boston, United States **$178M** last round Oct 2015
- 49 [**Antares Therapeutics** Antares Therapeutics, Inc.](https://millionrounds.com/company/antares-therapeutics) Antares Therapeutics, Inc. *Founded* - Boston, United States **$177M** last round May 2025
- 50 [**Aktis Oncology** Aktis Oncology is a biotechnology company discovering and developing a novel class of targeted radiopharmaceuticals.](https://millionrounds.com/company/aktis-oncology) Aktis Oncology is a biotechnology company discovering and developing a novel class of targeted radiopharmaceuticals. *Founded* 2021 Boston, United States **$175M** last round Sept 2024

**Total funding** how the list is ranked

**15 November 2026** updated nightly

**Rounds we track** source: Millionrounds

Every startup we hold in Boston, ranked by the total it has raised in rounds we hold. Nobody pays to be on a list.

## Who backed them?

Open any company for its rounds and investors, or search the investors who back startups in Boston in the app, with filters, lists and exports.

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## More startup lists

[See all](https://millionrounds.com/top-lists?t=All%20startups)

[*O* *A* *X* **Startups in the United States** 42,176 companies · $870B](https://millionrounds.com/top-lists/startups-united-states)[*SC* *N* *F* **Startups in the United Kingdom** 8,355 companies · $79B](https://millionrounds.com/top-lists/startups-united-kingdom)[*O* *D* *TM* **Startups in San Francisco** 4,251 companies · $350B](https://millionrounds.com/top-lists/startups-san-francisco)[*W* *K* *P* **Startups in New York** 3,729 companies · $67B](https://millionrounds.com/top-lists/startups-new-york)[*F* *IL* *PD* **Startups in London** 3,521 companies · $51B](https://millionrounds.com/top-lists/startups-london)[*MA* *M* *TE* **Startups in France** 3,025 companies · $32B](https://millionrounds.com/top-lists/startups-france)[*C* *H8* *AP* **Startups in Canada** 2,950 companies · $38B](https://millionrounds.com/top-lists/startups-canada)[*B* *D* *AF* **Startups in China** 2,168 companies · $163B](https://millionrounds.com/top-lists/startups-china)

## More lists for Boston

[See all](https://millionrounds.com/top-lists?r=Boston)

[*DH* *BM* *W* **Health startups in Boston** 617 companies · $27B](https://millionrounds.com/top-lists/health-startups-boston)[*R* *S* *D* **AI startups in Boston** 197 companies · $12B](https://millionrounds.com/top-lists/ai-startups-boston)[*W* *IT* *CT* **Biotech startups in Boston** 125 companies · $10B](https://millionrounds.com/top-lists/biotech-startups-boston)[*W* *IT* *P* **Healthcare startups in Boston** 99 companies · $7.8B](https://millionrounds.com/top-lists/healthcare-startups-boston)[*MG* *E* *B* **IT Services startups in Boston** 76 companies · $1.7B](https://millionrounds.com/top-lists/it-services-startups-boston)[*D* *C* *A* **Big Data & Analytics startups in Boston** 58 companies · $2.4B](https://millionrounds.com/top-lists/big-data-startups-boston)[*WR* *QC* *T* **Deep tech startups in Boston** 39 companies · $1.8B](https://millionrounds.com/top-lists/deep-tech-startups-boston)[*FE* *GP* *RR* **Energy startups in Boston** 37 companies · $4.5B](https://millionrounds.com/top-lists/energy-startups-boston)