Company lists · Data refreshed September 2026
Top 25 Startup funding companies based in Boston, United States
RevenueBase identified 79 startup funding companies headquartered in Boston, United States as of September 2026 and tracks 1,132 professional contacts across them, including 348 with verified work emails. San Francisco is the largest hub.
This list covers startup funding companies headquartered in Boston, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 22, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest startup funding companies based in Boston, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 211 contacts → | ||||
Indirect evidence “Battery invests in potentially cutting-edge, category-defining businesses in markets including application software, IT infrastructure technologies, consumer-internet and mobile…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 2 | 109 contacts → | ||||
Indirect evidence “FA Technology Ventures is an independent, established venture capital firm.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 3 | 45 contacts → | ||||
Partial evidence “Glasswing Ventures is an early stage venture capital firm investing in the next generation of AI and frontier technology startups that are enabling the rise of the intelligent…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 4 | 41 contacts → | ||||
Partial evidence “We back just a few fast-moving, founder-led B2B startups each year.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 5 | 38 contacts → | ||||
Indirect evidence “PJC is an early-stage venture capital firm focused on investing in, supporting, and building relationships with entrepreneurs who are creating the future.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 6 | 36 contacts → | ||||
Indirect evidence “Venture Guides is an early-stage infrastructure software investment firm with a unique team based approach that has resulted in over 80% of portfolio companies generating positive…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 7 | 34 contacts → | ||||
Indirect evidence “Firm overview Mendoza Ventures is an early-stage and growth venture fund based in Boston.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 8 | 21 contacts → | ||||
Indirect evidence “EO Ventures invests in early-stage businesses that increase opportunity in America.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 9 | 21 contacts → | ||||
Indirect evidence “January Ventures is a VC fund focused on angel/pre-seed in the US & Europe.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 10 | 20 contacts → | ||||
Indirect evidence “SSC Venture Partners is a venture capital fund made up of BC alums who love entrepreneurship and want to see BC alumni and students successfully launch their own companies.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 11 | 19 contacts → | ||||
Indirect evidence “We are a venture studio building and investing in transformative companies across ed tech, AI, consumer products, and B2B SaaS.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 12 | 15 contacts → | ||||
Indirect evidence “Our Culture: At MMV, we’re a team of fair, dedicated investors and operators who put integrity, collaboration, and teamwork at the forefront of what we do.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 13 | 15 contacts → | ||||
Indirect evidence “Since 1993, Saturn has been an opportunistic investor that takes a hands-on approach to investing in proprietary seed and early stage venture capital opportunities located…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 14 | 14 contacts → | ||||
Indirect evidence “Cue Ball is a venture capital firm built on a distinct, human capital-centric philosophy.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 15 | 14 contacts → | ||||
Indirect evidence “An early-stage venture firm defining the future of business solutions.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 16 | 13 contacts → | ||||
Indirect evidence “LiquidMetal Ventures is a Boston based, early-stage focused venture capital fund focusing on Energy & Sustainability, Biotech & Healthcare and AI & Robotics, with a mission…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 17 | 12 contacts → | ||||
Indirect evidence “FoundersEdge is a data-driven pre-seed fund investing in exceptional founders using technology to change the world.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 18 | 11 contacts → | ||||
Indirect evidence “We're hiring!” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 19 | 10 contacts → | ||||
Indirect evidence “Prepare 4 VC is a premier venture enablement platform that empowers early to mid-stage tech founders to turn bold ideas into investor-ready companies.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 20 | 9 contacts → | ||||
Partial evidence “Boston Harbor Angels, Celebrating 20 Years of Angel Investing, like a lighthouse, helps entrepreneurs navigate and grow their start-up businesses through the treacherous waters of…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 21 | 9 contacts → | ||||
Indirect evidence “AccelHUB Venture Partners invests in disruptive international technologies and provides the guidance and leadership to launch them into the global market and reach a strong exit.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 22 | 8 contacts → | ||||
Indirect evidence “We're looking for the rebels.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 23 | 7 contacts → | ||||
Strong evidence “Altitude Connects innovative ideas, influential funding, and impeccable execution to help create some of today's most exciting startups.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 24 | 6 contacts → | ||||
Indirect evidence “Globespan Capital is the VC firm passionate about partnering with entrepreneurs as they prepare to take their companies to market.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 25 | 5 contacts → | ||||
Indirect evidence “Ascent Venture Partners is dedicated to investing in innovation for the enterprise.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: startup funding companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names startup funding companies.
- Partial evidence
- Its own public description names part of startup funding companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name startup funding companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 79 startup funding companies based in Boston, United States
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Startup funding companies based in Boston, United States at a glance
As of Sep 22, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Boston, so it is reported there. Company counts and contact totals on this page are exact for Boston, over 79 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among startup funding companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Boston, United States whose own description of what they do matches “startup funding companies”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names startup funding companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among startup funding companies, and records with no verified work email. Companies headquartered outside Boston are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 348 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 22, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Startup funding companies by metro in the United States
- Startup funding companies in San Francisco379
- Startup funding companies in New York372
- Startup funding companies in Palo Alto114
- Startup funding companies in Los Angeles112
- Startup funding companies in Chicago84
- Startup funding companies in Boston79
- Startup funding companies in Austin68
- Startup funding companies in Menlo Park65
- Startup funding companies in Miami58
- Startup funding companies in Houston53
- Startup funding companies in Dallas38
- Startup funding companies in Atlanta36
- Startup funding companies in New York City35
- Startup funding companies in Seattle34
- Startup funding companies in Washington33
- Startup funding companies in Cambridge30
- Startup funding companies in San Diego30
- Startup funding companies in Santa Monica29
- Startup funding companies in Denver26
- Startup funding companies in San Jose25
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names startup funding companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many startup funding companies are there based in Boston, United States?
RevenueBase identified 79 startup funding companies headquartered in Boston, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Battery Ventures, headquartered in Boston, tops this list with the largest team on record.
Which city has the most startup funding companies?
San Francisco leads with 379 headquartered companies, followed by New York (372) and Palo Alto (114).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 348 verified decision-maker contacts tracked across these 79 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 22, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
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