Company lists · Data verified August 2026

Top 25 Cloud communications companies based in the United States

Name: Cloud communications 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 875 companies tracked

There are 875 cloud communications companies headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 59,656 professional contacts across them, including 21,415 with verified work emails and 19,897 with mobile numbers. New York is the largest hub.

This list covers cloud communications 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.

875Companies

59,656Contacts tracked

21,415Verified emails

19,897Mobile numbers

Unlock all 875 companies Free account · no credit card · 2 minutes

The 25 largest cloud communications companies based in the United States

Ranked by team size

Top 25 of 875 cloud communications 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	Lumen Technologies	Monroe, LA	10001+	15,743	6,907
2	ZOOM	Overland Park, KS	5,001-10,000	9,821	3,598
3	Vonage	Holmdel, NJ	1,001-5,000	3,512	1,736
4	Spectrum Business	Stamford, CT	10001+	3,030	1,173
5	GOTO	Boston, MA	1,001-5,000	2,325	1,286
6	Polycom	Andover, MA	1,001-5,000	1,783	64
7	Intermedia Intelligent Communications	Sunnyvale, CA	1,001-5,000	1,251	672
8	Integra	Vancouver, WA	501-1,000	1,134	24
9	TW Telecom	Broomfield, CO	10001+	1,056	106
10	Ooma, INC	Sunnyvale, CA	501-1,000	604	286
11	Masergy	Plano, TX	501-1,000	485	222
12	SKYPE	Redmond, WA	10001+	437	64
13	Real Time Data Services	Pompano Beach, FL	501-1,000	433	296
14	Momentum	Brentwood, TN	501-1,000	432	251
15	Spectrumvoip	Plano, TX	201-500	425	167
16	Fusion Connect	Atlanta, GA	201-500	423	264
17	phone.com	Poway, CA	201-500	396	52
18	Wildix	Columbus, OH	201-500	337	166
19	GPA	Glen Ellyn, IL	5,001-10,000	317	11
20	ZOOM	San Jose, CA	5,001-10,000	288	184
21	Bluejeans By Verizon	San Jose, CA	501-1,000	266	6
22	Broadsoft	Gaithersburg, MD	1,001-5,000	251	42
23	Dialogic	Parsippany, NJ	201-500	242	24
24	Zenlayer	Diamond Bar, CA	201-500	234	79
25	Voximplant	Palo Alto, CA	201-500	192	87

Showing 25 of 875 cloud communications companies based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 21,415 reachable decision-makers.

Free account · no credit card

See all 875 companies

Cloud communications companies based in the United States at a glance

As of Aug 28, 2026

11-50Median size (employees)

New YorkLargest hub · 27 HQs

19,897Contacts with mobile numbers

112Emails re-verified in last 30 days

Companies by employee count

1-10

299

11-50

348

51-200

150

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Cloud communications companies by metro

Metro	Companies
Cloud communications companies in New York	27
Cloud communications companies in Austin	22
Cloud communications companies in Atlanta	19
Cloud communications companies in Miami	19
Cloud communications companies in Houston	14
Cloud communications companies in Denver	12
Cloud communications companies in San Francisco	12
Cloud communications companies in Dallas	12

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 “cloud communications 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; 112 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 cloud communications companies are there based in the United States?

There are 875 cloud communications companies headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

Lumen Technologies, headquartered in Monroe, tops this list with the largest team on record.

Which city has the most cloud communications companies?

New York leads with 27 headquartered companies, followed by Austin (22) and Atlanta (19).

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 21,415 verified decision-maker contacts tracked across these 875 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.

Ready to reach these companies? Verified emails and direct dials for all 875 cloud communications companies based in the United States. Start with a free account, no credit card.

Get the full list

Related lists

Cloud communications companies by geography

Browse the directory

Browse: Companies home · All United States lists · All Cloud communications companies lists · New lists

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.