7 Best Startup Accelerators in Boston and Cambridge (2027)

Boston and Cambridge combine two of the best known research universities, Harvard and MIT, with a deep biotech, health and hardware ecosystem. Many of the area's programs are run by universities or take no equity.

If you are a student or recent graduate, the university programs are often the easiest place to start. Independent programs such as MassChallenge are open to founders from anywhere.

Boston accelerators compared

ProgramFundingEquityNext deadline
Techstars$220,0005% common stock (via $20K CEA) plus $200K uncapped MFN SAFENovember 18, 2026 (22 days left)
Greentown LabsNone (membership-based incubator)None published for membershipRolling admissions
MassRoboticsNone for residencyNoneRolling admissions
MIT delta vUp to $75K equity-free0% (equity-free)Next deadline not announced yet
LearnLaunch Accelerator$50,000 initial investment (2026 program)Not publishedNext deadline not announced yet
MassChallengeEquity-free, competitive cash awards0% (no equity, no program fee for the U.S. Early Stage program)Next deadline not announced yet
Harvard Innovation Labs (i-lab)No direct investment; President's Innovation Challenge prizes (over $500K in 2026)0% (no equity)Next deadline not announced yet
Techstars logo

1. Techstars

Boston, Chicago, New York City, London, Baltimore, Los Angeles (USC) and Techstars Anywhere (remote)

Global accelerator network with programs in cities worldwide. Invests $220K: $20K for 5% plus a $200K uncapped MFN SAFE, in a three-month program.

Funding
$220,000
Equity
5% common stock (via $20K CEA) plus $200K uncapped MFN SAFE
Deadline
November 18, 2026 (22 days left)

Alumni include Remitly, SendGrid, DigitalOcean, ClassPass.

Techstars: terms, deadline and how to apply
Greentown Labs logo

2. Greentown Labs

Boston (Somerville)

Nonprofit climatetech incubator with campuses in Somerville, MA and Houston. It has incubated 700+ startups since 2011. Members rent lab, prototyping and office space.

Funding
None (membership-based incubator)
Equity
None published for membership
Deadline
Rolling admissions

Alumni include Form Energy, Fervo Energy, Carbon Upcycling Technologies.

Greentown Labs: terms, deadline and how to apply
MassRobotics logo

3. MassRobotics

Boston

Nonprofit robotics hub in Boston's Seaport with lab and office residency for robotics, AI and connected-device startups. No equity taken; residents pay monthly for space.

Funding
None for residency
Equity
None
Deadline
Rolling admissions
MassRobotics: terms, deadline and how to apply
MIT delta v logo

4. MIT delta v

Cambridge, MA

MIT's capstone summer accelerator for student founders, run by the Martin Trust Center. Teams get up to $75K in equity-free funding and finish at a September Demo Day.

Funding
Up to $75K equity-free
Equity
0% (equity-free)
Deadline
Next deadline not announced yet

Alumni include Klarity, Reducto.

MIT delta v: terms, deadline and how to apply
LearnLaunch Accelerator logo

5. LearnLaunch Accelerator

Boston

Boston edtech investor and accelerator. Its 2026 Breakthrough to Scale program offered an initial $50,000 to edtech startups with traction, plus performance-based follow-on capital.

Funding
$50,000 initial investment (2026 program)
Equity
Not published
Deadline
Next deadline not announced yet

Alumni include Highfive, Reflection Sciences, Prentus.

LearnLaunch Accelerator: terms, deadline and how to apply
MassChallenge logo

6. MassChallenge

Boston, MA (HQ), plus programs in Switzerland and other regions

Equity-free accelerator founded in Boston. Takes no equity and charges no program fee for its US programs, with mentorship, corporate partners and competitive cash awards.

Funding
Equity-free, competitive cash awards
Equity
0% (no equity, no program fee for the U.S. Early Stage program)
Deadline
Next deadline not announced yet

Alumni include Ginkgo Bioworks, Flywire, Bitso, Ministry of Supply.

MassChallenge: terms, deadline and how to apply
Harvard Innovation Labs (i-lab) logo

7. Harvard Innovation Labs (i-lab)

Boston, MA

Harvard's innovation hub in Allston, opened in 2011. Takes no equity from student ventures. Runs a 12-week Venture Incubation Program plus Launch Lab X for alumni.

Funding
No direct investment; President's Innovation Challenge prizes (over $500K in 2026)
Equity
0% (no equity)
Deadline
Next deadline not announced yet

Alumni include Shield AI, SES, Veho, Whoop.

Harvard Innovation Labs (i-lab): terms, deadline and how to apply

Before you apply

Get your pitch deck scored with our free AI Pitch Review, and track every deadline in one place from your SaaSOffers dashboard. Once you are accepted, claim the free startup credits most programs qualify you for.

FAQ: startup accelerators in Boston

What are the best startup accelerators in Boston?+

The programs founders apply to most in Boston and Cambridge are Techstars, Greentown Labs, MassRobotics, MIT delta v, LearnLaunch Accelerator. Each one differs in funding, equity and format, so compare them in the table above before applying.

Which accelerators in Boston take no equity?+

MassRobotics, MIT delta v, MassChallenge, Harvard Innovation Labs (i-lab) take no equity, based on each program's published terms.

Which Boston accelerators are accepting applications now?+

Techstars (deadline November 18, 2026). Programs with rolling admissions accept applications at any time.

Which accelerator in Boston invests the most?+

Techstars offers the largest investment on this list: $220,000, for 5% common stock (via $20K CEA) plus $200K uncapped MFN SAFE.