Company lists · Data verified August 2026

Top 25 Cloud connectivity providers based in the United States

Name: Cloud connectivity providers 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 137 companies tracked

There are 137 cloud connectivity providers headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 47,716 professional contacts across them, including 13,256 with verified work emails and 19,130 with mobile numbers. Charlotte is the largest hub.

This list covers cloud connectivity providers 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.

137Companies

47,716Contacts tracked

13,256Verified emails

19,130Mobile numbers

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The 25 largest cloud connectivity providers based in the United States

Ranked by team size

Top 25 of 137 cloud connectivity providers 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	Lumen Technologies	Monroe, LA	10001+	15,743	6,907
3	GTT	Arlington, VA	1,001-5,000	2,970	1,306
4	Masergy	Plano, TX	501-1,000	485	222
5	Firstlight Fiber	Brunswick, ME	501-1,000	472	374
6	Fusion Connect	Atlanta, GA	201-500	423	264
7	ENA By Zayo	Indianapolis, IN	201-500	361	59
8	Commandlink	Bothell, WA	501-1,000	267	169
9	Tailscale	Berkeley, CA	201-500	244	176
10	Citynet	Bridgeport, WV	201-500	241	49
11	Telesystem	Northwood, OH	201-500	185	85
12	Openvpn INC	Pleasanton, CA	51-200	176	71
13	Silver Peak	Santa Clara, CA	201-500	133	53
14	O4it	Doral, FL	51-200	107	16
15	Cytracom	Mckinney, TX	51-200	106	65
16	Globalgig	San Antonio, TX	51-200	98	66
17	Packetfabric	Culver City, CA	51-200	77	46
18	Netfoundry	Charlotte, NC	51-200	71	26
19	Lightstream.io	Salt Lake City, UT	51-200	70	46
20	Technium, INC	Marlborough, MA	51-200	55	30
21	Acuity Technologies	Tampa, FL	11-50	45	18
22	Oxford Networks	Norway, ME	51-200	38	12
23	Bresco Solutions	Columbus, OH	51-200	35	21
24	Nexgen Networks	Boston, MA	51-200	34	12
25	Stellar Technologies	Phoenix, AZ	11-50	28	17

Showing 25 of 137 cloud connectivity providers based in the United States

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Cloud connectivity providers based in the United States at a glance

As of Aug 28, 2026

11-50Median size (employees)

CharlotteLargest hub · 4 HQs

19,130Contacts with mobile numbers

56Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

Cloud connectivity providers by metro

Metro	Companies
Cloud connectivity providers in Charlotte	4
Cloud connectivity providers in New York	4
Cloud connectivity providers in Dallas	3
Cloud connectivity providers in Los Angeles	3
Cloud connectivity providers in Houston	3
Cloud connectivity providers in Tampa	2
Cloud connectivity providers in Southfield	2
Cloud connectivity providers in Chicago	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 “cloud connectivity providers”, 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; 56 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 connectivity providers are there based in the United States?

There are 137 cloud connectivity providers 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 connectivity providers?

Charlotte leads with 4 headquartered companies, followed by New York (4) and Dallas (3).

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 13,256 verified decision-maker contacts tracked across these 137 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.