Company lists · Data verified August 2026

Top 25 Early stage software investors based in the United States

Name: Early stage software investors based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 2,134 companies tracked

There are 2,134 early stage software investors headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 30,882 professional contacts across them, including 6,172 with verified work emails and 9,470 with mobile numbers. San Francisco is the largest hub.

This list covers early stage software investors headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

2,134Companies

30,882Contacts tracked

6,172Verified emails

9,470Mobile numbers

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The 25 largest early stage software investors based in the United States

Ranked by team size

Top 25 of 2,134 early stage software investors based in the United States, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Y Combinator	San Francisco, CA	n/a	3,174	155
2	Techstars	New York City, NY	n/a	1,712	149
3	Microsoft For Startups	Redmond, WA	10001+	1,483	122
4	Insight Partners	New York, NY	201-500	604	411
5	Lvlup Ventures	New York, NY	1,001-5,000	568	14
6	Primary Venture Partners	New York, NY	51-200	537	76
7	Creative Destruction LAB	Madison, WI	51-200	495	118
8	DFJ	Menlo Park, CA	51-200	205	16
9	DMZ	New York, NY	51-200	153	62
10	Aximsoft	San Ramon, CA	51-200	142	37
11	Atomic	San Francisco, CA	51-200	122	39
12	SOSV	Newark, NJ	51-200	119	50
13	Greylock Partners	Burlington, MA	51-200	109	56
14	Sand Hill Angels	Mountain View, CA	51-200	104	42
15	Fedtech	Washington, DC	51-200	104	32
16	First Round Fast Track	San Francisco, CA	501-1,000	99	5
17	Band Of Angels	San Francisco, CA	51-200	94	27
18	IVP	San Francisco, CA	51-200	83	55
19	Forum Ventures	New York, NY	51-200	81	35
20	startups.com	Columbus, OH	51-200	62	8
21	loeb.nyc	New York, NY	201-500	60	21
22	On Deck	San Francisco, CA	51-200	59	16
23	Basistech	Somerville, MA	51-200	57	13
24	HPA	Chicago, IL	51-200	55	2
25	NEW York Angels	New York, NY	51-200	46	2

Showing 25 of 2,134 early stage software investors based in the United States

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Early stage software investors based in the United States at a glance

As of Aug 28, 2026

1-10Median size (employees)

San FranciscoLargest hub · 233 HQs

9,470Contacts with mobile numbers

8Emails re-verified in last 30 days

Companies by employee count

1-10

1,593

11-50

437

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Early stage software investors by metro

Metro	Companies
Early stage software investors in San Francisco	233
Early stage software investors in New York	231
Early stage software investors in Palo Alto	75
Early stage software investors in Los Angeles	65
Early stage software investors in Boston	62
Early stage software investors in Austin	52
Early stage software investors in Chicago	52

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “early stage software investors”, with match quality audited by blind human judging, and headquartered in the United States.
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: Contact records re-verify on a rolling cadence; 8 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many early stage software investors are there based in the United States?

There are 2,134 early stage software investors headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

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

Which city has the most early stage software investors?

San Francisco leads with 233 headquartered companies, followed by New York (231) and Palo Alto (75).

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 6,172 verified decision-maker contacts tracked across these 2,134 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.