Company lists · Data refreshed September 2026

Top 25 Telecom infrastructure software companies based in the United States

RevenueBase identified 1,383 telecom infrastructure software companies headquartered in the United States as of September 2026 and tracks 122,911 professional contacts across them, including 35,546 with verified work emails and 24,169 with mobile numbers. New York is the largest hub.

This list covers telecom infrastructure software 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. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 6, 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 6, 2026 86% judged on-target in blind review
1,383Companies
122,911Contacts tracked
35,546Verified emails
24,169Mobile numbers
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The 25 largest telecom infrastructure software companies based in the United States

Ranked by team size
Top 25 of 1,383 telecom infrastructure software companies based in the United States, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to telecom infrastructure software companies: 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 evidenceChesterfield, MO, United StatesHQ checked Sep 6, 202610001+39,863 contacts →

“Who are we?”

Source: company website · checked Sep 6, 2026
2Indirect evidenceLittle Rock, AR, United StatesHQ checked Sep 6, 202610001+7,275 contacts →

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

Source: company website · checked Sep 6, 2026
3Partial evidenceRochester, NY, United StatesHQ checked Sep 6, 2026n/a6,332 contacts →

“PT, a global supplier of advanced network solutions, offers Diameter and SS7 Signaling Systems delivering advanced routing/applications to SS7, 4G/LTE, and IMS telecom networks.”

Source: company website · checked Sep 6, 2026
4Partial evidenceRichardson, TX, United StatesHQ checked Sep 6, 20261,001-5,0004,443 contacts →

“Mavenir is enabling intelligent, automated, programmable networks through the development of telco-first, cloud-native, AI-by-design software solutions for mobile operators.”

Source: company website · checked Sep 6, 2026
5Indirect evidenceChandler, AZ, United StatesHQ checked Sep 6, 20261,001-5,0004,248 contacts →

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

Source: company website · checked Sep 6, 2026
6Partial evidenceCoral Gables, FL, United StatesHQ checked Sep 6, 20265,001-10,0003,207 contacts →

“MasTec Communications Group (MCG) is a division of MasTec that provides comprehensive services and turnkey solutions for Telecom operators.”

Source: company website · checked Sep 6, 2026
7Partial evidencePlano, TX, United StatesHQ checked Sep 6, 20261,001-5,0002,387 contacts →

“Ribbon Communications (Nasdaq: RBBN) is a global provider of voice communications software, IP routing, and optical networking to mobile and wireline service providers…”

Source: company website · checked Sep 6, 2026
8Indirect evidenceSouth Hackensack, NJ, United StatesHQ checked Sep 6, 2026n/a2,244 contacts →

“Communication Components Inc.”

Source: company website · checked Sep 6, 2026
9Indirect evidenceMclean, VA, United StatesHQ checked Sep 6, 20265,001-10,0002,193 contacts →

“In Feb.”

Source: company website · checked Sep 6, 2026
10Indirect evidenceHuntsville, AL, United StatesHQ checked Sep 6, 20261,001-5,0002,106 contacts →

“Adtran, Inc.”

Source: company website · checked Sep 6, 2026
11Indirect evidenceSan Jose, CA, United StatesHQ checked Sep 6, 20261,001-5,0001,959 contacts →

“Infinera is now part of Nokia.”

Source: company website · checked Sep 6, 2026
12Partial evidenceHillsboro, OR, United StatesHQ checked Sep 6, 20261,001-5,0001,742 contacts →

“Radisys is a proven, global leader in open telecom solutions and services.”

Source: company website · checked Sep 6, 2026
13Partial evidenceCupertino, CA, United StatesHQ checked Sep 6, 20261,001-5,0001,645 contacts →

“Mobileum is a leading provider of Telecom analytics solutions for roaming, core network, security, risk management, domestic and international connectivity testing, and customer…”

Source: company website · checked Sep 6, 2026
14Partial evidenceIron Mountain, MI, United StatesHQ checked Sep 6, 20261,001-5,0001,077 contacts →

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

Source: company website · checked Sep 6, 2026
15Partial evidenceSturgis, KY, United StatesHQ checked Sep 6, 20261,001-5,000949 contacts →

“Ervin Cable Construction, LLC (ECC) is a seasoned leader in telecommunications construction, founded in 1980.”

Source: company website · checked Sep 6, 2026
16Indirect evidenceSan Jose, CA, United StatesHQ checked Sep 6, 20261,001-5,000816 contacts →

“Our world is increasing in complexity.”

Source: company website · checked Sep 6, 2026
17Partial evidenceFort Lauderdale, FL, United StatesHQ checked Sep 6, 20261,001-5,000765 contacts →

“Founded in 2013, ITG is a national provider of end-to-end digital infrastructure services delivered through a turnkey model.”

Source: company website · checked Sep 6, 2026
18Partial evidenceAnnapolis, MD, United StatesHQ checked Sep 6, 2026501-1,000689 contacts →

“Smartlink powers the digital infrastructure behind today’s connected world.”

Source: company website · checked Sep 6, 2026
19Partial evidenceKennesaw, GA, United StatesHQ checked Sep 6, 20261,001-5,000637 contacts →

“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: company website · checked Sep 6, 2026
20Strong evidencePacific, MO, United StatesHQ checked Sep 6, 20261,001-5,000628 contacts →

“ADB is an industry-leading infrastructure solutions provider, proudly building networks, connections, and partnerships nationwide within the telecommunications and utility…”

Source: company website · checked Sep 6, 2026
21Indirect evidenceMobile, AL, United StatesHQ checked Sep 6, 2026501-1,000578 contacts →

“Uniti Fiber is a wholly owned subsidiary of Uniti Group,a publicly traded Real Estate Investment Trust (REIT).”

Source: company website · checked Sep 6, 2026
22Strong evidenceSan Diego, CA, United StatesHQ checked Sep 6, 2026501-1,000560 contacts →

“As part of KELLY’s SETT (Science, Engineering, Technology, and Telecom) Business Unit, we are committed to providing state-of-the-art digital infrastructure and telecom…”

Source: company website · checked Sep 6, 2026
23Partial evidenceWest Bridgewater, MA, United StatesHQ checked Sep 6, 20261,001-5,000477 contacts →

“Centerline is a leading provider of critical infrastructure services for next-generation networks across North America.”

Source: company website · checked Sep 6, 2026
24Indirect evidenceSomerset, NJ, United StatesHQ checked Sep 6, 2026201-500432 contacts →

“VCTI is a world class leader in network technology.”

Source: company website · checked Sep 6, 2026
25Indirect evidenceRedmond, WA, United StatesHQ checked Sep 6, 2026501-1,000426 contacts →
Source: company website · checked Sep 6, 2026

Showing 25 of 1,383 telecom infrastructure software companies based in the United States

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Telecom infrastructure software companies based in the United States at a glance

As of Sep 6, 2026
28.9%Verified-email coverage
19.7%Mobile-number coverage
88.9Average contacts per company
11-50Median size (employees)
2.0%Largest-city concentration · New York
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
439
11-50
526
51-200
262
201-500
84
501-1,000
27
1,001-5,000
36
5,001-10,000
3
10001+
4

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 telecom infrastructure software companies, 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 “telecom infrastructure software companies”. 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 telecom infrastructure software companies), 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 telecom infrastructure software companies, 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, 35,546 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 6, 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 telecom infrastructure software companies, 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 telecom infrastructure software companies are there based in the United States?

RevenueBase identified 1,383 telecom infrastructure software companies 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?

Amdocs, headquartered in Chesterfield, tops this list with the largest team on record.

Which city has the most telecom infrastructure software companies?

New York leads with 28 headquartered companies, followed by Plano (26) and Miami (25).

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 35,546 verified decision-maker contacts tracked across these 1,383 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 6, 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.