Company lists · Data verified August 2026

Top 25 Community platform developers based in the United States

Name: Community platform developers 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 119 companies tracked

There are 119 community platform developers headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 3,883 professional contacts across them, including 181 with verified work emails and 329 with mobile numbers. New York is the largest hub.

This list covers community platform developers 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.

119Companies

3,883Contacts tracked

181Verified emails

329Mobile numbers

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The 25 largest community platform developers based in the United States

Ranked by team size

Top 25 of 119 community platform developers 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	Tumblr	New York	n/a	1,813	31
2	Ning Interactive INC	Menlo Park, CA	51-200	431	1
3	Hashnode	San Francisco, CA	n/a	347	4
4	SKOOL	Los Angeles, CA	n/a	239	28
5	OURCO	New York	11-50	33	18
6	Social Knowledge, LLC	Southlake, TX	11-50	28	16
7	Networked	Philadelphia, PA	11-50	28	7
8	Telligent	Frisco, TX	51-200	14	5
9	Gitconnected	San Francisco, CA	1-10	14	1
10	Breezio	Rockville, MD	1-10	12	6
11	Onesite	Oklahoma City, OK	11-50	11	2
12	Bondware INC	Murfreesboro, TN	11-50	10	3
13	Invision Community	Lynchburg, VA	11-50	10	2
14	Freelock	Seattle, WA	11-50	9	5
15	Devada	Raleigh-Durham, NC	51-200	7	4
16	Heartbeat	Sandy Springs, GA	1-10	5	2
17	Bits On The Wire, INC	Tucson, AZ	11-50	5	1
18	Wet-Media, INC	Tucson, AZ	11-50	5	1
19	Small World Labs	Austin, TX	11-50	4	1
20	Momo Board	San Francisco, CA	1-10	4	1
21	Kulture	Remote Usa	1-10	4	1
22	Faxo INC	Chesterfield, MO	1-10	2	2
23	Forumbee	Bellingham, WA	11-50	2	1
24	Guild Launch LLC	Atlanta, GA	11-50	2	1
25	Rock IT	Denver, CO	1-10	2	1

Showing 25 of 119 community platform developers based in the United States

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Community platform developers based in the United States at a glance

As of Aug 28, 2026

1-10Median size (employees)

New YorkLargest hub · 15 HQs

329Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

1,001-5,000

10001+

Community platform developers by metro

Metro	Companies
Community platform developers in New York	15
Community platform developers in San Francisco	10
Community platform developers in Los Angeles	5
Community platform developers in Seattle	3
Community platform developers in Atlanta	3
Community platform developers in Chicago	2
Community platform developers in Baltimore	2

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 “community platform developers”, 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; 0 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 community platform developers are there based in the United States?

There are 119 community platform developers headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

Tumblr, headquartered in New York, tops this list with the largest team on record.

Which city has the most community platform developers?

New York leads with 15 headquartered companies, followed by San Francisco (10) and Los Angeles (5).

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 181 verified decision-maker contacts tracked across these 119 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.