Company lists · Data verified August 2026

Top 25 Enterprise telecom consulting companies based in the United States

Name: Enterprise telecom consulting 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 3,389 companies tracked

There are 3,389 enterprise telecom consulting companies headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 46,395 professional contacts across them, including 13,623 with verified work emails and 15,492 with mobile numbers. New York is the largest hub.

This list covers enterprise telecom consulting 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.

3,389Companies

46,395Contacts tracked

13,623Verified emails

15,492Mobile numbers

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The 25 largest enterprise telecom consulting companies based in the United States

Ranked by team size

Top 25 of 3,389 enterprise telecom consulting 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	Zinnov	New York, NY	201-500	1,109	315
2	CCI Systems	Iron Mountain, MI	1,001-5,000	1,082	465
3	KGPCO	Faribault, MN	1,001-5,000	972	386
4	NUMEN	Wilmington, DE	501-1,000	822	378
5	Allied Telesis	Bothell, WA	1,001-5,000	811	255
6	Cprime, INC	Plano, TX	501-1,000	603	287
7	Nextgen GTA A Kelly Telecom Company	San Diego, CA	501-1,000	557	60
8	Tilson	Spanish Fort, AL	501-1,000	420	185
9	Acuative	Herndon, VA	501-1,000	406	181
10	SDI Presence	Chicago, IL	201-500	389	226
11	Continuant	Tacoma, WA	201-500	363	192
12	Vantage Point Solutions	Huron, SD	501-1,000	344	209
13	PCT International, INC	Tempe, AZ	201-500	344	14
14	Cartesian	Somerset, NJ	201-500	298	164
15	NACR	Eagan, MN	501-1,000	252	69
16	Finley Engineering Company, INC	Bismarck, ND	201-500	239	116
17	Glotel, INC	Chicago, IL	201-500	219	12
18	F1	Miami, FL	501-1,000	217	35
19	Mission Critical Partners	Port Matilda, PA	201-500	204	128
20	Alpitel S.P.A	Roma	501-1,000	185	4
21	NEW York Technology Partners	Rochester, NY	201-500	184	24
22	Engineering Associates, LLC	Alpharetta, GA	201-500	184	19
23	GCB Services	Mclean, VA	201-500	181	10
24	Amphenol Custom Cable	Orlando, FL	201-500	178	58
25	Guideit	Plano, TX	201-500	147	85

Showing 25 of 3,389 enterprise telecom consulting companies based in the United States

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Enterprise telecom consulting companies based in the United States at a glance

As of Aug 28, 2026

1-10Median size (employees)

New YorkLargest hub · 110 HQs

15,492Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

1,850

11-50

1,099

51-200

337

201-500

501-1,000

1,001-5,000

Enterprise telecom consulting companies by metro

Metro	Companies
Enterprise telecom consulting companies in New York	110
Enterprise telecom consulting companies in Houston	72
Enterprise telecom consulting companies in Dallas	60
Enterprise telecom consulting companies in Chicago	51
Enterprise telecom consulting companies in Atlanta	50
Enterprise telecom consulting companies in Austin	44
Enterprise telecom consulting companies in Denver	43

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 telecom consulting 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; 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 telecom consulting companies are there based in the United States?

There are 3,389 enterprise telecom consulting companies headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

Zinnov, headquartered in New York, tops this list with the largest team on record.

Which city has the most enterprise telecom consulting companies?

New York leads with 110 headquartered companies, followed by Houston (72) and Dallas (60).

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 13,623 verified decision-maker contacts tracked across these 3,389 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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Related lists

Enterprise telecom consulting companies by geography

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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.