Company lists · Data refreshed September 2026

Top 25 Series a venture capital firms worldwide

RevenueBase identified 6,332 series a venture capital firms worldwide as of September 2026 and tracks 68,734 professional contacts across them, including 14,428 with verified work emails and 13,582 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers series a venture capital firms worldwide, 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 6, 2026. Country and city lists for series a venture capital firms follow the table.

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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 6, 2026 86% judged on-target in blind review
6,332Companies
68,734Contacts tracked
14,428Verified emails
13,582Mobile numbers
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The 25 largest series a venture capital firms worldwide

Ranked by team size
Top 25 of 6,332 series a venture capital firms worldwide, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to series a venture capital firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 2026n/a3,283 contacts →

Indirect evidence

“Y Combinator is the leading startup accelerator for entrepreneurs.”

Source: RevenueBase Database · checked Sep 6, 2026
2Indirect evidenceNew York City, NY, United StatesHQ checked Sep 6, 2026n/a1,803 contacts →

Indirect evidence

“Techstars helps founders scale their startups into world-changing businesses.”

Source: RevenueBase Database · checked Sep 6, 2026
3Indirect evidenceSingapore, GermanyHQ checked Sep 6, 2026n/a1,554 contacts →

Indirect evidence

“Antler is one of the most active early-stage investors globally.”

Source: RevenueBase Database · checked Sep 6, 2026
4Indirect evidencePalo Alto, CA, United StatesHQ checked Sep 6, 2026n/a1,246 contacts →

Indirect evidence

“The Founder Institute is the World’s Largest AI-Native Company Builder, where ambitious professionals, solo founders, and first-time entrepreneurs go to turn ideas into funded…”

Source: RevenueBase Database · checked Sep 6, 2026
5Strong evidencePalo Alto, CA, United StatesHQ checked Sep 6, 2026n/a981 contacts →

Strong evidence

“Accel is a global venture capital firm that is the first partner to exceptional teams everywhere, from inception through all phases of private company growth.”

Source: RevenueBase Database · checked Sep 6, 2026
6Strong evidenceMenlo Park, CA, United StatesHQ checked Sep 6, 2026201-500932 contacts →

Strong evidence

“Founded in 2009 by Marc Andreessen and Ben Horowitz, Andreessen Horowitz (known as "a16z") is a venture capital firm that backs bold entrepreneurs building the future through…”

Source: RevenueBase Database · checked Sep 6, 2026
7Indirect evidenceLondon, United KingdomHQ checked Sep 6, 2026n/a906 contacts →

Indirect evidence

“Entrepreneurs First invests in exceptional individuals to build startups from scratch.”

Source: RevenueBase Database · checked Sep 6, 2026
8Strong evidenceHyderabad, IndiaHQ checked Sep 6, 2026n/a899 contacts →

Strong evidence

“Venture capital (VC) is a type of private equity financing provided by investors to early-stage, high-potential, and high-risk startups or growing companies.”

Source: RevenueBase Database · checked Sep 6, 2026
9Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 2026n/a711 contacts →

Strong evidence

“Hustle Fund is a venture capital firm investing in hilariously-early pre-seed founders.”

Source: RevenueBase Database · checked Sep 6, 2026
10Strong evidenceNew York, NY, United StatesHQ checked Sep 6, 20261,001-5,000610 contacts →

Strong evidence

“LvlUp Ventures is a global venture capital firm investing in and accelerating early-stage & late-stage startups.”

Source: RevenueBase Database · checked Sep 6, 2026
11Indirect evidenceNew York, NY, United StatesHQ checked Sep 6, 202651-200545 contacts →

Indirect evidence

“Primary is the world's largest early stage VC firm, with a billion in assets under management and 50 full time employees.”

Source: RevenueBase Database · checked Sep 6, 2026
12Partial evidenceAmsterdam, NetherlandsHQ checked Sep 6, 2026201-500522 contacts →

Partial evidence

“At Startupbootcamp, we supercharge startup growth – providing capital, world-class mentorship, and direct access to investors, corporate partners, and industry experts.”

Source: RevenueBase Database · checked Sep 6, 2026
13Indirect evidenceToronto, ON, CanadaHQ checked Sep 6, 202651-200515 contacts →

Indirect evidence

“Creative Destruction Lab (CDL) is a nonprofit organization that delivers an objectives-based program for massively scalable, seed-stage, science- and technology-based companies.”

Source: RevenueBase Database · checked Sep 6, 2026
14Indirect evidencePalo Alto, CA, United StatesHQ checked Sep 6, 2026n/a483 contacts →

Indirect evidence

“Startup Grind is the leading global startup community dedicated to fostering the growth of early-stage companies.”

Source: RevenueBase Database · checked Sep 6, 2026
15Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 2026201-500402 contacts →

Partial evidence

“Bessemer Venture Partners helps entrepreneurs lay strong foundations from inception to build long-standing companies.”

Source: RevenueBase Database · checked Sep 6, 2026
16Indirect evidenceHyderabad, IndiaHQ checked Sep 6, 202651-200366 contacts →

Indirect evidence

“T-Hub is the world’s largest home for startups, supporting founders from ideation to scale through programs, partnerships, and global market access while anchoring some of the…”

Source: RevenueBase Database · checked Sep 6, 2026
17Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 2026n/a321 contacts →

Partial evidence

“The Alchemist Accelerator is a venture-backed initiative focused on accelerating the development of seed-stage ventures that monetize from enterprises (not consumers).”

Source: RevenueBase Database · checked Sep 6, 2026
18Strong evidenceMenlo Park, CA, United StatesHQ checked Sep 6, 202651-200277 contacts →

Strong evidence

“New Enterprise Associates, Inc.(NEA) is a global venture capital firm focused on helping entrepreneurs build transformational businesses across multiple stages, sectors and…”

Source: RevenueBase Database · checked Sep 6, 2026
19Indirect evidenceSan Francisco Bay, MA, United StatesHQ checked Sep 6, 202651-200276 contacts →

Indirect evidence

“GV supports innovative founders across multiple stages and sectors, from artificial intelligence and life sciences to consumer platforms, enterprise software, and frontier…”

Source: RevenueBase Database · checked Sep 6, 2026
20Indirect evidenceMunich, GermanyHQ checked Sep 6, 202651-200265 contacts →

Indirect evidence

“Start2 Group is a global innovation leader and one of Europe’s top-ranked startup hubs (#2 by Financial Times and Statista;#1 for Hub Network and Alumni Track Record).”

Source: RevenueBase Database · checked Sep 6, 2026
21Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 2026n/a258 contacts →

Indirect evidence

“Our mission is to help more people start better startups.”

Source: RevenueBase Database · checked Sep 6, 2026
22Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 2026n/a247 contacts →

Partial evidence

“NextGen Venture Partners works with over 1,800 Venture Partners to invest $1 million in seed stage companies and $2 million to $10 million in companies with more than $10 million…”

Source: RevenueBase Database · checked Sep 6, 2026
23Indirect evidenceBerlin, GermanyHQ checked Sep 6, 2026201-500237 contacts →

Indirect evidence

“EWOR is a fellowship for outlier founders building transformative tech.”

Source: RevenueBase Database · checked Sep 6, 2026
24Indirect evidenceUnited StatesHQ checked Sep 6, 2026n/a229 contacts →

Indirect evidence

“F6S helps millions of founders and their companies grow.”

Source: RevenueBase Database · checked Sep 6, 2026
25Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 2026n/a221 contacts →

Indirect evidence

“Neo is a diverse mentorship community, startup accelerator, and VC fund.”

Source: RevenueBase Database · checked Sep 6, 2026

Showing 25 of 6,332 series a venture capital firms worldwide

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Series a venture capital firms worldwide at a glance

As of Sep 6, 2026
21.0%Verified-email coverage
19.8%Mobile-number coverage
10.9Average contacts per company
1-10Median size (employees)
4.9%Largest-city concentration · London
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
4,627
11-50
1,380
51-200
221
201-500
59
501-1,000
16
1,001-5,000
14
5,001-10,000
4
10001+
4

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 series a venture capital firms, 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.
Coverage
31 countries, largest first: the United States, India, the United Kingdom, Germany, Canada, France, Brazil, Australia, Spain, the Netherlands and 21 more. Country and city lists for series a venture capital firms are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “series a venture capital firms”. 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 series a venture capital firms), 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 series a venture capital firms, and records with no verified work email.
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, 14,428 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 between September 6, 2026 and September 14, 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.

Series a venture capital firms by location

67 lists · largest first

Every Series a venture capital firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 series a venture capital firms, 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 series a venture capital firms are there worldwide?

RevenueBase identified 6,332 series a venture capital firms worldwide 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?

Y Combinator, headquartered in San Francisco, tops this list with the largest team on record.

Which country has the most series a venture capital firms?

The United States leads with 2,423 companies, followed by India (905) and the United Kingdom (436). Every series a venture capital firms list by country and city is linked on this page.

Which city has the most series a venture capital firms?

London leads with 311 headquartered companies, followed by San Francisco (279) and New York (258).

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 14,428 verified decision-maker contacts tracked across these 6,332 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled from the company graph between September 6, 2026 and September 14, 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.