Company lists · Data refreshed September 2026

Top 25 Seed stage startups worldwide

Name: Seed stage startups worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 5,499 companies tracked

RevenueBase identified 5,499 seed stage startups worldwide as of September 2026 and tracks 45,527 professional contacts across them, including 8,861 with verified work emails. The United States is the largest market and London the largest hub.

This list covers seed stage startups 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 22, 2026. Country and city lists for seed stage startups 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 22, 2026 86% judged on-target in blind review

5,499Companies

45,527Contacts tracked

8,861Verified emails

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The 25 largest seed stage startups worldwide

Ranked by team size

Top 25 of 5,499 seed stage startups worldwide, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to seed stage startups: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Y Combinator	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 22, 2026	n/a	3,283 contacts →
	Partial evidence “Y Combinator is the leading startup accelerator for entrepreneurs.” Source: RevenueBase Database · checked Sep 22, 2026
2	Antler	Partial evidence	Singapore, GermanyHQ checked Sep 22, 2026	n/a	1,554 contacts →
	Partial evidence “Antler is one of the most active early-stage investors globally.” Source: RevenueBase Database · checked Sep 22, 2026
3	Founder Institute	Indirect evidence	Palo Alto, CA, United StatesHQ checked Sep 22, 2026	n/a	1,246 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 22, 2026
4	Entrepreneurs First	Partial evidence	London, United KingdomHQ checked Sep 22, 2026	n/a	906 contacts →
	Partial evidence “Entrepreneurs First invests in exceptional individuals to build startups from scratch.” Source: RevenueBase Database · checked Sep 22, 2026
5	Trigeo Technologies PVT LTD	Strong evidence	Hyderabad, IndiaHQ checked Sep 22, 2026	n/a	899 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 22, 2026
6	Lvlup Ventures	Strong evidence	New York, NY, United StatesHQ checked Sep 22, 2026	1,001-5,000	610 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 22, 2026
7	Primary Venture Partners	Partial evidence	New York, NY, United StatesHQ checked Sep 22, 2026	51-200	545 contacts →
	Partial 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 22, 2026
8	Startupbootcamp	Partial evidence	Amsterdam, NetherlandsHQ checked Sep 22, 2026	201-500	522 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 22, 2026
9	Creative Destruction LAB	Strong evidence	Toronto, ON, CanadaHQ checked Sep 22, 2026	51-200	515 contacts →
	Strong 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 22, 2026
10	Bessemer Venture Partners	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 22, 2026	201-500	402 contacts →
	Indirect evidence “Bessemer Venture Partners helps entrepreneurs lay strong foundations from inception to build long-standing companies.” Source: RevenueBase Database · checked Sep 22, 2026
11	Alchemist Accelerator	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 22, 2026	n/a	321 contacts →
	Strong 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 22, 2026
12	ODF	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 22, 2026	n/a	258 contacts →
	Partial evidence “Our mission is to help more people start better startups.” Source: RevenueBase Database · checked Sep 22, 2026
13	EWOR	Indirect evidence	Berlin, GermanyHQ checked Sep 22, 2026	201-500	237 contacts →
	Indirect evidence “EWOR is a fellowship for outlier founders building transformative tech.” Source: RevenueBase Database · checked Sep 22, 2026
14	DFJ	Indirect evidence	Menlo Park, CA, United StatesHQ checked Sep 22, 2026	51-200	205 contacts →
	Indirect evidence “DFJ is a venture capital firm that partners with extraordinary entrepreneurs who are changing the world.” Source: RevenueBase Database · checked Sep 22, 2026
15	First Round Capital	Partial evidence	San Francisco, PA, United StatesHQ checked Sep 22, 2026	n/a	199 contacts →
	Partial evidence “First Round is a venture capital firm that works with founders exclusively at the earliest stages of company building, often when all they have is an “imagine if.” We fill in…” Source: RevenueBase Database · checked Sep 22, 2026
16	Pear VC	Partial evidence	Menlo Park, CA, United StatesHQ checked Sep 22, 2026	n/a	157 contacts →
	Partial evidence “We’re specialists in pre-seed and seed.” Source: RevenueBase Database · checked Sep 22, 2026
17	SKU	Partial evidence	Austin, TX, United StatesHQ checked Sep 22, 2026	n/a	153 contacts →
	Partial evidence “SKU is an accelerator program for stellar consumer product startups.” Source: RevenueBase Database · checked Sep 22, 2026
18	WOW Aceleradora DE Startups	Partial evidence	Porto Alegre, BrazilHQ checked Sep 22, 2026	n/a	151 contacts →
	Partial evidence “Há mais de 10 anos potencializamos pessoas e startups que transformam a realidade.” Source: RevenueBase Database · checked Sep 22, 2026
19	India Accelerator	Strong evidence	Gurgaon, IndiaHQ checked Sep 22, 2026	51-200	144 contacts →
	Strong evidence “India Accelerator (IA) is India’s leading accelerator - a full-stack platform that sources, scales, and backs high-potential startups from the earliest stages.” Source: RevenueBase Database · checked Sep 22, 2026
20	Sutter Hill Ventures	Indirect evidence	Palo Alto, United StatesHQ checked Sep 22, 2026	11-50	133 contacts →
	Indirect evidence “Sutter Hill Ventures has financed technology-based start-ups and assisted entrepreneurs in building market-leading companies since 1962.” Source: RevenueBase Database · checked Sep 22, 2026
21	Masschallenge Switzerland	Partial evidence	Renens, SwitzerlandHQ checked Sep 22, 2026	n/a	129 contacts →
	Partial evidence “As part of the world's largest non-profit accelerator, we are like a startup MBA!” Source: RevenueBase Database · checked Sep 22, 2026
22	Speedinvest	Indirect evidence	Wien, AustriaHQ checked Sep 22, 2026	51-200	120 contacts →
	Indirect evidence “It takes more than capital to build real-world, cutting-edge technologies and companies that last.” Source: RevenueBase Database · checked Sep 22, 2026
23	SOSV	Strong evidence	Princeton, NJ, United StatesHQ checked Sep 22, 2026	51-200	119 contacts →
	Strong evidence “SOSV is the most active deep tech venture capital firm globally, investing at pre-seed (or at startup inception) supporting visionary founders intent on making a profound impact…” Source: RevenueBase Database · checked Sep 22, 2026
24	JVP	Indirect evidence	Jerusalem, IsraelHQ checked Sep 22, 2026	11-50	114 contacts →
	Indirect evidence “Jerusalem Venture Partners (JVP) is an internationally renowned venture capital fund.” Source: RevenueBase Database · checked Sep 22, 2026
25	Entrepreneurs Roundtable Accelerator	Partial evidence	NY, United StatesHQ checked Sep 22, 2026	n/a	114 contacts →
	Partial evidence “Entrepreneurs Roundtable Accelerator (ERA) is New York City’s leading technology accelerator and early-stage venture capital fund.” Source: RevenueBase Database · checked Sep 22, 2026

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: seed stage startups. 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 seed stage startups.
Partial evidence: Its own public description names part of seed stage startups, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name seed stage startups. 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 5,499 seed stage startups worldwide

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Seed stage startups worldwide at a glance

As of Sep 22, 2026

19.5%Verified-email coverage

8.3Average contacts per company

1-10Median size (employees)

3.3%Largest-city concentration · London

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

4,171

11-50

1,080

51-200

172

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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 seed stage startups, 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: Every country. Country and city lists for seed stage startups are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “seed stage startups”. 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 seed stage startups), 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 seed stage startups, 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, 8,861 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.

Seed stage startups by location

39 lists · largest first

Every Seed stage startups 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 seed stage startups, 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 seed stage startups are there worldwide?

RevenueBase identified 5,499 seed stage startups 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 seed stage startups?

The United States leads with 1,392 companies, followed by India (554) and the United Kingdom (255). Every seed stage startups list by country and city is linked on this page.

Which city has the most seed stage startups?

London leads with 179 headquartered companies, followed by San Francisco (174) and New York (156).

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 8,861 verified decision-maker contacts tracked across these 5,499 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.