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Seed Companies in Boston

Explore 327 seed startups based in Boston, United States. Access verified founder contact information and fundraising data.

Total Companies
327
Total Funding
$207.6M
Avg Funding
$8.3M
Industries
14

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Health Care
$150K
raised

Noah Labs develops AI-driven medical devices for early detection of heart failure conditions using voice-based biomarkers

Sep 2026
Seed

Founder Contacts

41,000+ verified contacts

Information Technology
$2.0M
raised

BorderLogic is an IT firm currently operating in stealth.

Sep 2026
Seed

Founder Contacts

41,000+ verified contacts

3D Printing

Ultrasonium develops metal additive manufacturing equipment and processes for aerospace, defense, and energy applications.

Sep 2026
Seed

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)
$14.0M
raised

G5 is the semantic abstraction layer that makes AI-native software development compilable, mergeable, and governable for enterprises.

Sep 2026
Seed

Founder Contacts

41,000+ verified contacts

AI Infrastructure
$500K
raised

Rindler develops a Model Context Protocol (MCP) platform enabling AI agents to interact reliably with websites that lack APIs.

Sep 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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Biotechnology
$15.3M
raised

General Cybernetics is a company that offers technology driven products and services.

Sep 2026
Seed

Founder Contacts

41,000+ verified contacts

Health Care
$1.0M
raised

Sona is a platform that allows prenatal ultrasounds to be sent directly from the ultrasound machine to a mobile app for expectant parents.

Sep 2026
Seed

Founder Contacts

41,000+ verified contacts

Biotechnology
$1.5M
raised

INIA Biosciences develops non-invasive, home-administered, and closed-loop medical devices to manage chronic inflammatory diseases.

Sep 2026
Seed

Founder Contacts

41,000+ verified contacts

Computer Vision
$697K
raised

Dimenso AI develops software that uses voice and computer vision to capture laboratory activities in real time.

Sep 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)
$25.0M
raised

Transfyr builds AI tools that help transfer scientific research into real-world applications and innovation.

Aug 2026
Seed

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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$50.0M
raised

K2 Therapeutics creates advanced antibody-based therapies focused on difficult multi-pass membrane targets to address unmet disease needs.

Aug 2026
Seed

Founder Contacts

41,000+ verified contacts

Health Care
$25.0M
raised

Bios Life develops AI-enabled cancer surveillance and personalized virtual care services.

Aug 2026
Seed

Founder Contacts

41,000+ verified contacts

$1.5M
raised

Qunett is developing scalable hardware solutions for quantum device connectivity

Aug 2026
Seed

Founder Contacts

41,000+ verified contacts

Internet
$11.3M
raised

Nodal is an IT firm making Virtual Assistant for port terminal operations.

Jul 2026
Seed

Founder Contacts

41,000+ verified contacts

CleanTech
$5.0M
raised

Reservoir provides smart heat pump water heaters with connected energy management and thermal storage.

Jul 2026
Seed

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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Artificial Intelligence (AI)
$11.7M
raised

Scalable, cost-Efficient, Reliable Physical AI

Jun 2026
Seed

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)
$6.0M
raised

BoolSi is a command line tool for distributed simulations and analysis of synchronous Boolean networks.

Jun 2026
Seed

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)

OpenProse is an open-source infrastructure for long-running AI work: a declarative language plus the Reactor harness/runtime for workflows.

Jun 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

Information Technology
$710K
raised

Protoverse

Jun 2026
Seed

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)
$5.0M
raised

Enlaye is a cloud-based platform for contract writing, negotiation, and deep collaboration.

Jun 2026
Seed

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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Fertility
$7.0M
raised

Ovelle creates ovary and egg cells from stem cells to support infertility research and treatment.

Jun 2026
Seed

Founder Contacts

41,000+ verified contacts

Cyber Security
$5.0M
raised

Flux Cyber is a serial startup builder and innovator.

Jun 2026
Seed

Founder Contacts

41,000+ verified contacts

MAJC is a community-powered Hospitality Software platform designed for restaurant operators and hospitality professionals.

May 2026
Seed

Founder Contacts

41,000+ verified contacts

Biotechnology
$17.3M
raised

Endlyz Therapeutics is developing disease-modifying therapeutics for Parkinson’s disease (PD) and other dementias.

Apr 2026
Seed

Founder Contacts

41,000+ verified contacts

Marketing Automation

Swapt is a SaaS marketing automation platform for offline data acquisition.

Apr 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

Showing 1 to 25 of 327 companies

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