Company lists · Data verified August 2026

Top 25 Collaboration software companies based in the United States

Name: Collaboration software companies 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 414 companies tracked

There are 414 collaboration software companies headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 13,709 professional contacts across them, including 1,786 with verified work emails and 3,448 with mobile numbers. San Francisco is the largest hub.

This list covers collaboration software companies 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.

414Companies

13,709Contacts tracked

1,786Verified emails

3,448Mobile numbers

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The 25 largest collaboration software companies based in the United States

Ranked by team size

Top 25 of 414 collaboration software companies 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	SLACK	San Francisco, CA	1,001-5,000	2,591	4
2	Lucid Software	Raleigh, NC	1,001-5,000	1,362	841
3	Anywhereworks	Raleigh, NC	1,001-5,000	1,100	38
4	Café YC S21	NY	n/a	760	1
5	Infocus	Portland, OR	51-200	257	12
6	Bitrix24	Alexandria, VA	501-1,000	194	2
7	Invision	New York, NY	501-1,000	166	1
8	Jive Software	Austin, TX	501-1,000	165	1
9	Mattermost	Palo Alto, CA	51-200	149	104
10	Meister	Seattle, WA	51-200	132	55
11	CODA	Bellevue, WA	201-500	131	49
12	Fuze An 8x8 Company	Boston, MA	501-1,000	103	44
13	Newline Interactive Americas	Allen, TX	51-200	95	56
14	NIFTY	New York, NY	11-50	91	1
15	Oracle Textura	Deerfield, IL	501-1,000	76	22
16	Jupiter Systems	Hayward, CA	51-200	64	20
17	SWIT	San Francisco, CA	51-200	63	2
18	Arthur	San Mateo, CA	51-200	56	28
19	T1v, INC	Charlotte, NC	11-50	50	33
20	Axero Solutions	New York, NY	51-200	49	26
21	Pumble	Palo Alto, CA	51-200	49	8
22	Ideagen Huddle	Bethesda, MD	1,001-5,000	36	1
23	Katmai	New York, NY	11-50	30	17
24	QUIP	San Francisco, CA	51-200	30	15
25	Edoc Service	West Chester, OH	11-50	24	8

Showing 25 of 414 collaboration software companies based in the United States

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Collaboration software companies based in the United States at a glance

As of Aug 28, 2026

11-50Median size (employees)

San FranciscoLargest hub · 50 HQs

3,448Contacts with mobile numbers

5Emails re-verified in last 30 days

Companies by employee count

1-10

205

11-50

151

51-200

201-500

501-1,000

1,001-5,000

10001+

Collaboration software companies by metro

Metro	Companies
Collaboration software companies in San Francisco	50
Collaboration software companies in New York	29
Collaboration software companies in Austin	15
Collaboration software companies in Los Angeles	14
Collaboration software companies in Palo Alto	9
Collaboration software companies in Atlanta	8
Collaboration software companies in Irvine	7

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 “collaboration software companies”, 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; 5 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 collaboration software companies are there based in the United States?

There are 414 collaboration software companies headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

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

Which city has the most collaboration software companies?

San Francisco leads with 50 headquartered companies, followed by New York (29) and Austin (15).

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 1,786 verified decision-maker contacts tracked across these 414 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.