Company lists · Data refreshed September 2026

Top 25 Managed service providers for telecom based in the United States

RevenueBase identified 3,913 managed service providers for telecom headquartered in the United States as of September 2026 and tracks 264,738 professional contacts across them, including 56,454 with verified work emails. New York is the largest hub.

This list covers managed service providers for telecom headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review
3,913Companies
264,738Contacts tracked
56,454Verified emails
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The 25 largest managed service providers for telecom based in the United States

Ranked by team size
Top 25 of 3,913 managed service providers for telecom based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to managed service providers for telecom: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceDallas, TX, United StatesHQ checked Sep 28, 202610001+149,412 contacts →

Indirect evidence

“We understand that our customers want an easier, less complicated life.”

Source: RevenueBase Database · checked Sep 28, 2026
2Indirect evidenceBasking Ridge, NJ, United StatesHQ checked Sep 28, 202610001+12,837 contacts →

Indirect evidence

“You’re more than a business, agency or organization leader.”

Source: RevenueBase Database · checked Sep 28, 2026
3Indirect evidenceWaltham, MA, United StatesHQ checked Sep 28, 202610001+8,651 contacts →

Indirect evidence

“Netcracker Technology, a wholly owned subsidiary of NEC Corporation, helps service providers around the world transform and grow in the digital economy.”

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidenceLittle Rock, AR, United StatesHQ checked Sep 28, 202610001+7,275 contacts →

Indirect evidence

“Windstream and Uniti have merged - Please follow us at Uniti Group, Inc.”

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceChandler, AZ, United StatesHQ checked Sep 28, 20261,001-5,0004,248 contacts →

Indirect evidence

“VIAVI Solutions (NASDAQ: VIAV) is a global leader in both network and service enablement and optical security performance products and solutions.”

Source: RevenueBase Database · checked Sep 28, 2026
6Partial evidenceQuincy, MA, United StatesHQ checked Sep 28, 20261,001-5,0002,270 contacts →

Partial evidence

“Granite is a dynamic and rapidly growing company serving the exciting and demanding Telecommunications market.”

Source: RevenueBase Database · checked Sep 28, 2026
7Indirect evidenceMclean, VA, United StatesHQ checked Sep 28, 20265,001-10,0002,193 contacts →

Indirect evidence

“In Feb.”

Source: RevenueBase Database · checked Sep 28, 2026
8Indirect evidenceSan Jose, CA, United StatesHQ checked Sep 28, 20261,001-5,0001,959 contacts →

Indirect evidence

“Infinera is now part of Nokia.”

Source: RevenueBase Database · checked Sep 28, 2026
9Partial evidenceRockville, MD, United StatesHQ checked Sep 28, 2026n/a1,906 contacts →

Partial evidence

“Established in 1995, GURU is an IT managed service provider that specializes in infrastructure support, systems integration, data architecture, data hosting, and cloud services.”

Source: RevenueBase Database · checked Sep 28, 2026
10Indirect evidenceEl Paso, TX, United StatesHQ checked Sep 28, 2026501-1,0001,250 contacts →

Indirect evidence

“Today fast, flexible networks are the foundation of every successful organization.”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceHonolulu, HI, United StatesHQ checked Sep 28, 20261,001-5,0001,131 contacts →

Indirect evidence

“Over the last two decades our mission has evolved dramatically.”

Source: RevenueBase Database · checked Sep 28, 2026
12Partial evidenceIron Mountain, MI, United StatesHQ checked Sep 28, 20261,001-5,0001,077 contacts →

Partial evidence

“CCI Systems is an employee-owned solution provider specializing in telecommunications, comprehensive network assessments, industry-leading engineering, drafting and design…”

Source: RevenueBase Database · checked Sep 28, 2026
13Partial evidenceBroomfield, CO, United StatesHQ checked Sep 28, 202610001+1,051 contacts →

Partial evidence

“tw telecom is now part of CenturyLink.”

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidenceFaribault, MN, United StatesHQ checked Sep 28, 20261,001-5,000974 contacts →

Indirect evidence

“KGPCo is a key strategic partner to the world’s leading communication and technology companies creating the next generation of networks.”

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceFreehold, NJ, United StatesHQ checked Sep 28, 2026501-1,000928 contacts →

Indirect evidence

“For more than 20 years, IT By Design has been the growth partner MSPs trust to scale profitably.”

Source: RevenueBase Database · checked Sep 28, 2026
16Indirect evidenceSan Jose, CA, United StatesHQ checked Sep 28, 20261,001-5,000816 contacts →

Indirect evidence

“Our world is increasing in complexity.”

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 2026501-1,000681 contacts →

Indirect evidence

“MetTel is a global communications solutions provider for businesses and government agencies.”

Source: RevenueBase Database · checked Sep 28, 2026
18Indirect evidenceKennesaw, GA, United StatesHQ checked Sep 28, 20261,001-5,000637 contacts →

Indirect evidence

“Circet USA is a leading builder of network infrastructure with services tailored to your specific needs, including the design, engineering, construction, and maintenance of data…”

Source: RevenueBase Database · checked Sep 28, 2026
19Indirect evidenceChicago, IL, United StatesHQ checked Sep 28, 2026501-1,000605 contacts →

Indirect evidence

“Leading brands, including over hotels, trust Cloud5 to deliver exceptional experiences that both attract and retain customers.”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 28, 20261,001-5,000555 contacts →

Indirect evidence

“Cbeyond, Inc.”

Source: RevenueBase Database · checked Sep 28, 2026
21Indirect evidenceLos Angeles, CA, United StatesHQ checked Sep 28, 20261,001-5,000542 contacts →

Indirect evidence

“TelePacific company is now TPx Communications.”

Source: RevenueBase Database · checked Sep 28, 2026
22Partial evidenceClark, NJ, United StatesHQ checked Sep 28, 2026501-1,000529 contacts →

Partial evidence

“Maintech: A trusted global partner for IT Infrastructure Solutions and Managed Services, leveraging over 50 years of experience to empower businesses worldwide.”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidencePortsmouth, NH, United StatesHQ checked Sep 28, 2026501-1,000470 contacts →

Indirect evidence

“We free IT leaders to do what matters.”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceHouston, TX, United StatesHQ checked Sep 28, 2026501-1,000450 contacts →

Indirect evidence

“If you’re a midsize enterprise with employees (i.e, an “MSE” according to Gartner), we know what you’re going through.”

Source: RevenueBase Database · checked Sep 28, 2026
25Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 28, 2026501-1,000437 contacts →

Indirect evidence

“We unleash human momentum with collaboration, connectivity, and communications technology.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 3,913 managed service providers for telecom based in the United States

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Managed service providers for telecom based in the United States at a glance

As of Sep 28, 2026
21.3%Verified-email coverage
67.7Average contacts per company
11-50Median size (employees)
2.6%Largest-city concentration · New York
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
1,871
11-50
1,448
51-200
409
201-500
99
501-1,000
36
1,001-5,000
33
5,001-10,000
3
10001+
7

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 3,913 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among managed service providers for telecom, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in the United States whose own description of what they do matches “managed service providers for telecom”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names managed service providers for telecom), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among managed service providers for telecom, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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
Every listed company carries at least one verified work email, 56,454 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 28, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names managed service providers for telecom, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many managed service providers for telecom are there based in the United States?

RevenueBase identified 3,913 managed service providers for telecom headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

At&t, headquartered in Dallas, tops this list with the largest team on record.

Which city has the most managed service providers for telecom?

New York leads with 101 headquartered companies, followed by Houston (78) and Miami (64).

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 56,454 verified decision-maker contacts tracked across these 3,913 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 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 with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.