Company lists · Data refreshed September 2026

Top 25 Angel investor networks based in the United States

Name: Angel investor networks based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 567 companies tracked

RevenueBase identified 567 angel investor networks headquartered in the United States as of September 2026 and tracks 37,992 professional contacts across them, including 1,226 with verified work emails. New York is the largest hub.

This list covers angel investor networks headquartered in the 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 19, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 19, 2026 86% judged on-target in blind review

567Companies

37,992Contacts tracked

1,226Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest angel investor networks based in the United States

Ranked by team size

Top 25 of 567 angel investor networks based in the United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to angel investor networks: 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	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 19, 2026	n/a	3,283 contacts →
	Indirect evidence “Y Combinator is the leading startup accelerator for entrepreneurs.” Source: RevenueBase Database · checked Sep 19, 2026
2	Angellist	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 19, 2026	51-200	441 contacts →
	Indirect evidence “AngelList builds the infrastructure where capital, creativity, and hard work come together to accelerate the rate of innovation.” Source: RevenueBase Database · checked Sep 19, 2026
3	Alumni Ventures	Partial evidence	Manchester, NH, United StatesHQ checked Sep 19, 2026	51-200	411 contacts →
	Partial evidence “Founded in 2014, we’re America’s largest venture firm for individual investors and VC investing partner to over individuals and institutions.” Source: RevenueBase Database · checked Sep 19, 2026
4	Keiretsu Forum	Partial evidence	Orinda, CA, United StatesHQ checked Sep 19, 2026	n/a	191 contacts →
	Partial evidence “Keiretsu Forum is a global investment community of accredited private equity investors, venture capitalists and corporate/institutional investors.” Source: RevenueBase Database · checked Sep 19, 2026
5	DEV	Partial evidence	New York, NY, United StatesHQ checked Sep 19, 2026	n/a	107 contacts →
	Partial evidence “Digital Entertainment Ventures (DEV) is an investing platform that focuses on early stage companies building transformative products in digital media and commerce.” Source: RevenueBase Database · checked Sep 19, 2026
6	Sand Hill Angels	Strong evidence	Mountain View, CA, United StatesHQ checked Sep 19, 2026	51-200	106 contacts →
	Strong evidence “Sand Hill Angels is a group of Silicon Valley angel investors passionate about helping entrepreneurs get to the next level.” Source: RevenueBase Database · checked Sep 19, 2026
7	Angeles Investors	Strong evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	11-50	83 contacts →
	Strong evidence “Join a vibrant network of world-class investors, access high-potential startups, and play a vital role in making angel investing more inclusive.” Source: RevenueBase Database · checked Sep 19, 2026
8	Foundry	Strong evidence	Boulder, CO, United StatesHQ checked Sep 19, 2026	11-50	75 contacts →
	Strong evidence “Based in Boulder, Colorado, Foundry is one of the largest networks of entrepreneurs and early-stage investors in the country.” Source: RevenueBase Database · checked Sep 19, 2026
9	Angel Capital Association	Strong evidence	Overland Park, United StatesHQ checked Sep 19, 2026	51-200	70 contacts →
	Strong evidence “The Angel Capital Association (ACA) is the professional society of angel groups and private investors that invest in high growth, early-stage ventures.” Source: RevenueBase Database · checked Sep 19, 2026
10	Alliance Of Angels	Partial evidence	Seattle, WA, United StatesHQ checked Sep 19, 2026	n/a	68 contacts →
	Partial evidence “Alliance of Angels is the largest and most active angel group in the Pacific Northwest.” Source: RevenueBase Database · checked Sep 19, 2026
11	startups.com	Indirect evidence	Columbus, OH, United StatesHQ checked Sep 19, 2026	51-200	63 contacts →
	Indirect evidence “Startups.com is the world's largest startup platform.” Source: RevenueBase Database · checked Sep 19, 2026
12	GUST	Partial evidence	New York, NY, United StatesHQ checked Sep 19, 2026	51-200	61 contacts →
	Partial evidence “Gust is the global SaaS platform for founding, operating, and investing in scalable, high-growth companies.” Source: RevenueBase Database · checked Sep 19, 2026
13	3i Members	Strong evidence	New York, NY, United StatesHQ checked Sep 19, 2026	11-50	58 contacts →
	Strong evidence “3i Members is a network for accomplished private investors who source opportunities, share expertise, and build value for one another that goes far beyond the deal.” Source: RevenueBase Database · checked Sep 19, 2026
14	HPA	Partial evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	51-200	56 contacts →
	Partial evidence “HPA is a leading early-stage investor.” Source: RevenueBase Database · checked Sep 19, 2026
15	Village Global	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 19, 2026	11-50	55 contacts →
	Indirect evidence “At Village Global, early-stage capital is just the beginning.” Source: RevenueBase Database · checked Sep 19, 2026
16	Denver Angels	Strong evidence	Denver, CO, United StatesHQ checked Sep 19, 2026	n/a	55 contacts →
	Strong evidence “Denver Angels is a powerhouse network of 800+ family offices, high-net-worth individuals, and accredited angel investors fueling Denver Ventures.” Source: RevenueBase Database · checked Sep 19, 2026
17	startup.network	Strong evidence	Wilmington, DE, United StatesHQ checked Sep 19, 2026	11-50	52 contacts →
	Strong evidence “Startup.Network is a market place for startups, businesses, investors and service providers.” Source: RevenueBase Database · checked Sep 19, 2026
18	NEW York Angels	Partial evidence	New York, NY, United StatesHQ checked Sep 19, 2026	51-200	48 contacts →
	Partial evidence “New York Angels is a member-led organization committed to finding, funding and mentoring great young companies from pitch through successful exit.” Source: RevenueBase Database · checked Sep 19, 2026
19	Irishangels	Strong evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	n/a	47 contacts →
	Strong evidence “IrishAngels is a Notre Dame inspired angel investing group for experienced operators, executives, and founders who want to invest thoughtfully in early-stage companies and stay…” Source: RevenueBase Database · checked Sep 19, 2026
20	Florida Funders	Strong evidence	Tampa, FL, United StatesHQ checked Sep 19, 2026	11-50	46 contacts →
	Strong evidence “Florida Funders is a hybrid between a venture capital fund and an investor network that discovers, funds, and builds early-stage technology companies.” Source: RevenueBase Database · checked Sep 19, 2026
21	HUM Capital	Indirect evidence	New York, NY, United StatesHQ checked Sep 19, 2026	51-200	44 contacts →
	Indirect evidence “Hum Capital is turning the tables on the traditional fundraising process.” Source: RevenueBase Database · checked Sep 19, 2026
22	Augment	Partial evidence	Austin, TX, United StatesHQ checked Sep 19, 2026	51-200	40 contacts →
	Partial evidence “Augment enables investors to buy and sell shares of pre-IPO tech companies for $5k to $100M in minutes.” Source: RevenueBase Database · checked Sep 19, 2026
23	Predictable Funding	Partial evidence	New York, NY, United StatesHQ checked Sep 19, 2026	n/a	40 contacts →
	Partial evidence “Predictable Funding works with innovative and purpose driven companies, introducing them to quality investors for the growth capital they need.” Source: RevenueBase Database · checked Sep 19, 2026
24	Canyon Angels	Strong evidence	Phoenix, AZ, United StatesHQ checked Sep 19, 2026	n/a	39 contacts →
	Strong evidence “Canyon Angels is a sophisticated angel investment group founded in 2015 by entrepreneur and investor Timothy Kelley.” Source: RevenueBase Database · checked Sep 19, 2026
25	Astronomic	Partial evidence	Austin, TX, United StatesHQ checked Sep 19, 2026	11-50	37 contacts →
	Partial evidence “Astronomic enables founders and investors to connect, build, learn, fund, and grow.” Source: RevenueBase Database · checked Sep 19, 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: angel investor networks. 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 angel investor networks.
Partial evidence: Its own public description names part of angel investor networks, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name angel investor networks. 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 567 angel investor networks based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 1,226 reachable decision-makers.

Free signup · no credit card

View the full list →

Angel investor networks based in the United States at a glance

As of Sep 19, 2026

3.2%Verified-email coverage

67.0Average contacts per company

1-10Median size (employees)

10.8%Largest-city concentration · New York

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

385

11-50

136

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 567 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 angel investor networks, 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 the United States whose own description of what they do matches “angel investor networks”. 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 angel investor networks), 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 angel investor networks, and records with no verified work email. Companies headquartered outside United States 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, 1,226 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 19, 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.

Angel investor networks by metro

Angel investor networks in New York61
Angel investor networks in San Francisco48

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 angel investor networks, 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 angel investor networks are there based in the United States?

RevenueBase identified 567 angel investor networks headquartered in the 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?

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

Which city has the most angel investor networks?

New York leads with 61 headquartered companies, followed by San Francisco (48) and Austin (22).

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 1,226 verified decision-maker contacts tracked across these 567 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 19, 2026.

Ready to reach these companies? Verified emails and direct dials for all 567 angel investor networks based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Angel investor networks by geography

Browse the directory

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.