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Series A Companies in Boston

Explore 137 series a startups based in Boston, United States. Access verified founder contact information and fundraising data.

Total Companies
137
Total Funding
$1.1B
Avg Funding
$42.0M
Industries
14

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Employment
$2.5M
raised

Hourwork develops a recruitment and retention platform that connects employers with hourly workers.

Jun 2022
Series A

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)
$1.9M
raised

Automate AI leverages state-of-the-art artificial intelligence to provide comprehensive health data for smoother and smarter insights.

Jun 2025
Series A

Founder Contacts

30,000+ verified contacts

Manufacturing
$7.0M
raised

Rapid Liquid Print is developing 3D printers that produce stretchable products for industrial materials.

May 2024
Series A

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)
$200.0M
raised

Blitzy is a Generative AI software platform that aims to automate custom software development.

May 2026
Series A

Founder Contacts

30,000+ verified contacts

E-Commerce

SidelineSwap is an online marketplace for athletes, spectators, and sports families to purchase and trade athletic products.

May 2023
Series A

Founder Contacts

30,000+ verified contacts

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Artificial Intelligence (AI)
$14.9M
raised

Learnable is an AI platform providing explainable, personalized learning and analytics for education and enterprises.

May 2022
Series A

Founder Contacts

30,000+ verified contacts

Consumer Electronics
$4.2M
raised

Bounce Imaging is a defence and space manufacturing company focused on thermal sensing systems for public safety and industrial customers.

May 2022
Series A

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)
$30.0M
raised

Catena Labs incubate independent products spanning identity, communications, AI, and commerce.

May 2026
Series A

Founder Contacts

30,000+ verified contacts

E-Commerce
$5.0M
raised

Stone & Skillet produces and sells muffins.

May 2026
Series A

Founder Contacts

30,000+ verified contacts

$177.0M
raised

Antares is a biotechnology company focused on developing transformational,medicines targeting validated cancer and other serious diseases.

May 2025
Series A

Founder Contacts

30,000+ verified contacts

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30,000+ verified emails
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$10.0M
raised

Vector helps B2B sales reps and SDRs generate pipeline by activating company's network avoiding cold prospecting and screaming into a void.

May 2026
Series A

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)
$5.0M
raised

Customers.ai is a B2C outbound marketing and sales automation tool to use and created with marketers and business owners in mind.

Apr 2023
Series A

Founder Contacts

30,000+ verified contacts

$50.0M
raised

Kelonia Therapeutics develops genetic medicines focused on in vivo gene delivery and cell therapy for cancer and other diseases.

Apr 2022
Series A

Founder Contacts

30,000+ verified contacts

Biotechnology
$300.0M
raised

Beeline Medicines is a biotechnology company that identifies and provides precise treatments to autoimmune inflammatory disorders.

Apr 2026
Series A

Founder Contacts

30,000+ verified contacts

$20.0M
raised

Oxygen Esports is a team organization competing in esports titles such as Fortnite, Rocket League, and Rainbow Six.

Apr 2022
Series A

Founder Contacts

30,000+ verified contacts

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30,000+ verified emails
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Biotechnology
$7.0M
raised

Mytide Therapeutics is committed to providing peptides to serve a diverse array of applications.

Mar 2022
Series A

Founder Contacts

30,000+ verified contacts

Therapeutics
$19.0M
raised

NexCure offers clinically intense therapies in outpatient, community settings, and other cutting-edge treatments.

Mar 2026
Series A

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)
$8.0M
raised

Electives helps HR & People leaders build AI-first organizations.

Mar 2022
Series A

Founder Contacts

30,000+ verified contacts

Biotechnology
$67.0M
raised

Hillstar Bio is developing precision immunotherapies to treat autoimmune diseases.

Mar 2025
Series A

Founder Contacts

30,000+ verified contacts

Computer
$11.5M
raised

Lambent is a Boston-based SaaS analytics company enabling data-driven real estate decisions at college and corporate campuses.

Mar 2026
Series A

Founder Contacts

30,000+ verified contacts

Ready to Reach These Founders?

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30,000+ verified emails
Unlimited exports
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Public Transportation
$15.0M
raised

A global on-demand vehicle routing and management platform that partners with cities to power flexible transit.

Mar 2022
Series A

Founder Contacts

30,000+ verified contacts

Biotechnology
$52.0M
raised

Third Arc Bio is a biotech company developing multifunctional antibodies for inflammatory and immunology diseases.

Feb 2026
Series A

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)
$15.0M
raised

EnFi accelerate complex credit analysis and risk monitoring services.

Feb 2026
Series A

Founder Contacts

30,000+ verified contacts

Gift Card

LovePop creates handmade intricate paper art greeting cards.

Feb 2023
Series A

Founder Contacts

30,000+ verified contacts

Asset Management
$28.0M
raised

OneLayer offers a security and asset management platform focused on private LTE and 5G networks.

Oct 2025
Series A

Founder Contacts

30,000+ verified contacts

Showing 26 to 50 of 137 companies

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137 Recently Funded Series A Startups in Boston (August 2026) — Page 2 | VCBacked