Company lists · Data verified August 2026

Top 25 Cloud networking companies based in the United States

Name: Cloud networking 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 331 companies tracked

There are 331 cloud networking companies headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 53,997 professional contacts across them, including 17,741 with verified work emails and 17,848 with mobile numbers. San Jose is the largest hub.

This list covers cloud networking 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.

331Companies

53,997Contacts tracked

17,741Verified emails

17,848Mobile numbers

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The 25 largest cloud networking companies based in the United States

Ranked by team size

Top 25 of 331 cloud networking 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	Centurylink	Monroe, LA	10001+	22,865	2,868
2	Cloudflare	Washington, DC	1,001-5,000	5,795	3,496
3	Extreme Networks	Salem, NH	1,001-5,000	3,161	2,146
4	Netskope	Santa Clara, CA	1,001-5,000	3,025	1,996
5	GTT	Arlington, VA	1,001-5,000	2,970	1,306
6	Infoblox	Tacoma, WA	1,001-5,000	2,808	1,604
7	Versa Networks	Santa Clara, CA	501-1,000	798	415
8	NTT Global Networks	Greenwood Village, CO	501-1,000	716	286
9	A10 Networks, INC	San Jose, CA	501-1,000	673	337
10	Skyhigh Security	San Jose, CA	501-1,000	647	313
11	Masergy	Plano, TX	501-1,000	485	222
12	Spectrumvoip	Plano, TX	201-500	425	167
13	Coriant, INC	Naperville, IL	1,001-5,000	399	102
14	ENA By Zayo	Indianapolis, IN	201-500	361	59
15	VULTR	West Palm Beach, FL	201-500	341	170
16	INAP	Atlanta, GA	51-200	327	3
17	Nsfocus	Santa Clara, CA	1,001-5,000	284	23
18	IBOSS	Boston, MA	201-500	277	153
19	Tailscale	Berkeley, CA	201-500	244	176
20	Global Linking Solutions, Charlotte, North Carolina	Knoxville, TN	201-500	243	105
21	PI Data Centers	Milpitas, CA	201-500	201	28
22	solo.io	Cambridge, MA	51-200	200	92
23	Openvpn INC	Pleasanton, CA	51-200	176	71
24	Silver Peak	Santa Clara, CA	201-500	133	53
25	Nuvolat Cloud Group	Pittsburgh, PA	51-200	125	1

Showing 25 of 331 cloud networking companies based in the United States

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Cloud networking companies based in the United States at a glance

As of Aug 28, 2026

11-50Median size (employees)

San JoseLargest hub · 15 HQs

17,848Contacts with mobile numbers

100Emails re-verified in last 30 days

Companies by employee count

1-10

102

11-50

116

51-200

201-500

501-1,000

1,001-5,000

10001+

Cloud networking companies by metro

Metro	Companies
Cloud networking companies in San Jose	15
Cloud networking companies in New York	14
Cloud networking companies in Santa Clara	11
Cloud networking companies in Palo Alto	8
Cloud networking companies in Dallas	7
Cloud networking companies in San Francisco	7
Cloud networking companies in Austin	6
Cloud networking companies in Atlanta	5

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 networking 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; 100 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 networking companies are there based in the United States?

There are 331 cloud networking companies headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

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

Which city has the most cloud networking companies?

San Jose leads with 15 headquartered companies, followed by New York (14) and Santa Clara (11).

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 17,741 verified decision-maker contacts tracked across these 331 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.