List of Funded Startups in Boston For 2025

Boston startups raised nearly $4 billion in 2024, solidifying the city’s position as one of America’s premier startup ecosystems, ranking #6 globally and #3 in the United States after Silicon Valley and New York City. The city’s unique combination of world-class universities like MIT and Harvard, cutting-edge research institutions, and a thriving venture capital network makes it an ideal environment for innovation and entrepreneurship.

Our team at Growth List compiles comprehensive data every week on recently funded Boston startups, tracking funding rounds, company details, verified contact information, and much more. Whether you’re an investor seeking opportunities, a founder researching competitors, or a B2B service provider looking to connect with high-growth companies, this database provides actionable intelligence on Boston’s startup landscape.

👉 Jump to the List of 100 Funded Boston Startups

🔍 What You’ll Find In This Guide:

• 100+ recently funded Boston startups with verified contact info
• $4B+ in total funding tracked across all stages
• Industry breakdowns: Biotech, AI, Healthcare, FinTech, Climate Tech
• Funding stage analysis from Seed to Series C+
• Best practices for connecting with funded founders

Recently Funded Boston Startups

Below is a snapshot of our database featuring 100 of the most recently funded startups in Boston. Each listing includes the company’s website, industry classification, funding amount, funding type, and the date of their last funding round. Growth List subscribers also receive double-verified email addresses for CEOs and key decision-makers, lead investor information, and dozens of additional data points to help identify the best opportunities.

Understanding Boston’s Startup Ecosystem

Why Boston Is a Startup Powerhouse

According to MassTech Collaborative, Boston’s startup ecosystem raised $17.8 billion across 800+ deals in 2025, demonstrating the city’s continued strength as an innovation hub. Massachusetts Life Sciences companies alone raised $7.8 billion in venture capital funding in 2024, with Boston leading the way ahead of neighboring Cambridge.

The city’s success stems from several key advantages:

Academic Excellence: Boston is home to MIT, Harvard University, and Northeastern University, which fuel the startup ecosystem through incubators, research partnerships, and pitch competitions. These institutions provide access to top talent, cutting-edge laboratories, and extensive investor networks.

Research Infrastructure: The concentration of research hospitals and scientific institutions creates a fertile ground for biotech and healthcare innovation. Programs like the Pagliuca Harvard Life Lab provide lab space and mentoring specifically for life sciences startups.

Venture Capital Density: Boston boasts one of the strongest VC networks in the country, with leading firms like General Catalyst, Battery Ventures, and Polaris Partners actively investing across all funding stages.

Industry Specialization: The city excels in capital-intensive, research-driven sectors including biotechnology, artificial intelligence, healthcare technology, cybersecurity, and climate tech.

Boston vs. Other Major Startup Hubs

While Silicon Valley remains the global leader, Boston offers distinct advantages for certain types of startups. Unlike the West Coast’s focus on consumer internet and software, Boston specializes in deep tech, biotech, and enterprise solutions that require patient capital and longer development cycles.

Compared to New York City’s startup ecosystem, which emphasizes fintech and media, Boston’s strength lies in its research commercialization capabilities and life sciences cluster. The city provides infrastructure like LabCentral (225,000 sq ft of biotech laboratories) and Greentown Labs (North America’s largest climate tech incubator) that simply don’t exist at the same scale elsewhere.

Boston Startup Funding by Stage

Understanding the different funding stages helps contextualize the maturity and growth trajectory of Boston’s startup ecosystem:

Seed Funding in Boston

Boston’s seed-stage startups raised $232.3 million in 2023, supporting early-stage companies as they work toward product-market fit. Seed rounds in Boston typically range from $500,000 to $5 million, with AI and biotech companies often raising on the higher end due to development costs.

Notable accelerators supporting seed-stage companies include MassChallenge (equity-free), Techstars Boston, and The Engine (MIT-affiliated), providing not just capital but also mentorship and community support.

Series A Funding in Boston

Series A startups in Boston raised $582.3 million in 2023, as companies with proven product-market fit scaled their operations. Series A rounds in the city typically range from $7 million to $15 million, with notable recent raises including Blue Water Autonomy’s $50 million round and Maven AGI’s Series B at $50 million.

Series B and Beyond

Series B startups raised $738.5 million in 2023, while later-stage funding rounds contributed an additional $1.93 billion. Notable 2025 raises include Cohere Health’s $90 million Series C and VEIR’s $75 million Series B, demonstrating investor confidence in Boston’s ability to scale category-defining companies.

Key Industries in Boston’s Startup Landscape

Biotechnology and Life Sciences

Boston is globally recognized as the epicenter of biotech innovation. In December 2024, Cambridge-based CAMP4 Therapeutics raised $75 million in its U.S. IPO, while Atalanta Therapeutics secured $97 million in Series B funding in early 2025 for clinical trials.

The city’s biotech cluster benefits from proximity to leading research hospitals, specialized lab infrastructure through facilities like LabCentral, and a deep talent pool of scientists and engineers. Companies like AllRock Bio ($50 million Series A) and Hillstar Bio ($67 million Series A) exemplify the significant capital flowing into life sciences innovation.

Artificial Intelligence and Machine Learning

Boston’s AI sector is experiencing rapid growth, with startups applying machine learning to healthcare, manufacturing, and enterprise solutions. In December 2024, Liquid AI reached unicorn status, demonstrating the city’s growing strength in AI innovation.

Collaborations with MIT and Harvard are driving practical applications of AI technology. Notable funded companies include Method AI ($20 million Series A for surgical AI), Maven AGI ($50 million Series B), and 7AI ($36 million seed round for AI security).

Healthcare Technology

Healthcare technology startups raised substantial capital in 2025, addressing everything from clinical trials to patient care coordination. Eleos Health secured $60 million in Series C funding, while Koala Health raised $20 million Series B for wellness solutions.

The convergence of healthcare and AI is particularly strong in Boston, with companies like Cascala Health ($8.6 million seed) combining both domains to improve patient outcomes.

FinTech and Financial Services

Boston’s FinTech ecosystem continues to mature, with startups like CloudZero ($56 million Series C) and Openly ($123 million private equity) demonstrating the city’s strength in financial innovation. The 2025 Fintech + AI 413 Startup Launch Series brought together students and entrepreneurs to develop next-generation financial solutions.

Climate Tech and Clean Energy

Environmental startups are attracting significant attention, with VEIR raising $75 million Series B for energy transmission technology and Chloris Geospatial securing nearly $15 million for environmental monitoring. Greentown Labs, North America’s largest climate tech incubator, provides specialized support for clean energy and sustainability startups.

Boston Startups at a Glance

• Number of Boston startups in our database: 429
• Number of verified email addresses in our database: 608
• Number of social profiles in our database: 1,146
• Other data points stored: 5,968
• Total funding raised in 2024: $3,994,807,919
  • Seed: $232,301,922
  • Series A: $582,290,000
  • Series B: $738,500,000
  • Series C: $429,000,000
  • Other funding*: $1,929,667,258
• Total funding raised in 2025: $900,800,000

*Other funding includes private equity, debt financing, and various other types of capital.

How to Connect with Boston Startups

The Optimal Outreach Window

The best time to reach out to recently funded startups is within 2-3 weeks of their funding announcement. During this period, companies are actively allocating their new capital, making strategic vendor decisions, and building their teams.

Our Growth List database tracks funding announcements weekly and provides verified contact information for founders and key decision-makers, eliminating the research time typically required to identify and qualify leads.

Who Should Target Boston Startups?

Boston’s funded startups represent ideal prospects for various service providers:

• Marketing Agencies: Funded companies need branding, content marketing, and growth strategies as they scale
• Recruiters: Series A and B companies are hiring aggressively to build their teams
• Software Vendors: Growing startups adopt new tools and platforms during expansion phases
• Legal & Financial Services: Companies need sophisticated advisory services as they navigate rapid growth
• Business Development: Well-funded startups are actively seeking partnership opportunities

For more information on targeting funded startups across different industries and stages, explore our comprehensive database.

Frequently Asked Questions

Stay Updated on Boston Startup Funding

Our team updates this list every week with the latest funding announcements from Boston’s thriving startup ecosystem. Subscribe to Growth List to receive recently funded Boston startups delivered directly to your inbox, complete with verified contact information and comprehensive company details.

For startups in other major markets, check out our lists of funded startups across the United States or explore industry-specific databases including SaaS startups and FinTech companies.

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