Company lists · Data verified August 2026

Top 25 Enterprise connectivity providers based in the United States

Name: Enterprise 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 349 companies tracked

There are 349 enterprise connectivity providers headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 82,568 professional contacts across them, including 22,781 with verified work emails and 34,281 with mobile numbers. New York is the largest hub.

This list covers enterprise 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.

349Companies

82,568Contacts tracked

22,781Verified emails

34,281Mobile numbers

Unlock all 349 companies Free account · no credit card · 2 minutes

The 25 largest enterprise connectivity providers based in the United States

Ranked by team size

Top 25 of 349 enterprise 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	Verizon Business	Basking Ridge, NJ	10001+	12,834	2,885
4	Windstream	Little Rock, AR	10001+	7,315	1,538
5	Spectrum Business	Stamford, CT	10001+	3,030	1,173
6	GTT	Arlington, VA	1,001-5,000	2,970	1,306
7	Cogent Communications	Washington, DC	1,001-5,000	2,432	1,188
8	XO Communications	Herndon, VA	1,001-5,000	1,005	83
9	SEGRA	Charlotte, NC	1,001-5,000	961	619
10	Uniti Fiber	Mobile, AL	501-1,000	591	325
11	Cambium Networks	Hoffman Estates, IL	501-1,000	536	242
12	Expereo	Reston, VA	201-500	486	344
13	Firstlight Fiber	Brunswick, ME	501-1,000	472	374
14	Fusion Connect	Atlanta, GA	201-500	423	264
15	China Telecom Americas	New York, NY	201-500	385	115
16	Logix Fiber Networks	Austin, TX	201-500	371	148
17	ENA By Zayo	Indianapolis, IN	201-500	361	59
18	Commandlink	Bothell, WA	501-1,000	267	169
19	Everstream	Indianapolis, IN	201-500	247	217
20	FPL Fibernet	Irving, TX	1,001-5,000	238	12
21	METER	San Francisco, CA	201-500	190	130
22	Gold Data	Sunrise, FL	201-500	144	55
23	Silver Peak	Santa Clara, CA	201-500	133	53
24	Firstdigital	Draper, UT	201-500	123	60
25	Electric Lightwave	Vancouver, WA	1,001-5,000	75	4

Showing 25 of 349 enterprise connectivity providers based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 22,781 reachable decision-makers.

Free account · no credit card

See all 349 companies

Enterprise connectivity providers based in the United States at a glance

As of Aug 28, 2026

11-50Median size (employees)

New YorkLargest hub · 16 HQs

34,281Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

115

11-50

131

51-200

201-500

501-1,000

1,001-5,000

10001+

Enterprise connectivity providers by metro

Metro	Companies
Enterprise connectivity providers in New York	16
Enterprise connectivity providers in Los Angeles	10
Enterprise connectivity providers in Charlotte	9
Enterprise connectivity providers in Miami	6
Enterprise connectivity providers in Houston	6
Enterprise connectivity providers in Austin	6
Enterprise connectivity providers in Indianapolis	5
Enterprise connectivity providers in Atlanta	4

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 “enterprise 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; 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 enterprise connectivity providers are there based in the United States?

There are 349 enterprise 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 enterprise connectivity providers?

New York leads with 16 headquartered companies, followed by Los Angeles (10) and Charlotte (9).

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 22,781 verified decision-maker contacts tracked across these 349 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 349 enterprise connectivity providers based in the United States. Start with a free account, no credit card.

Get the full list

Related lists

Enterprise connectivity providers by geography

Browse the directory

Browse: Companies home · All United States lists · All Enterprise connectivity providers 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.