Company lists · Data refreshed September 2026

Top 25 Enterprise network infrastructure companies based in the United States

Name: Enterprise network infrastructure companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 1,099 companies tracked

RevenueBase identified 1,099 enterprise network infrastructure companies headquartered in the United States as of September 2026 and tracks 153,024 professional contacts across them, including 52,499 with verified work emails. Miami is the largest hub.

This list covers enterprise network infrastructure 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 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

1,099Companies

153,024Contacts tracked

52,499Verified emails

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The 25 largest enterprise network infrastructure companies based in the United States

Ranked by team size

Top 25 of 1,099 enterprise network infrastructure companies 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 enterprise network infrastructure 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Centurylink	Partial evidence	Monroe, LA, United StatesHQ checked Sep 28, 2026	10001+	22,745 contacts →
	Partial evidence “CenturyLink (NYSE: CTL) is a technology leader delivering hybrid networking, cloud connectivity, and security solutions to customers around the world.” Source: RevenueBase Database · checked Sep 28, 2026
2	Lumen Technologies	Partial evidence	Monroe, LA, United StatesHQ checked Sep 28, 2026	10001+	15,336 contacts →
	Partial evidence “Lumen is the trusted network for the AI-powered world, connecting people, data, and applications through one of the world’s most expansive fiber networks.” Source: RevenueBase Database · checked Sep 28, 2026
3	Equinix	Partial evidence	Redwood City, CA, United StatesHQ checked Sep 28, 2026	10001+	13,641 contacts →
	Partial evidence “Equinix (Nasdaq: EQIX) is the world’s digital infrastructure company®, enabling digital leaders to harness a trusted platform to bring together and interconnect the foundational…” Source: RevenueBase Database · checked Sep 28, 2026
4	Juniper Networks	Partial evidence	Sunnyvale, CA, United StatesHQ checked Sep 28, 2026	5,001-10,000	13,144 contacts →
	Partial evidence “Juniper Networks is leading the revolution in networking, making it one of the most exciting technology companies in Silicon Valley today.” Source: RevenueBase Database · checked Sep 28, 2026
5	CIENA	Indirect evidence	Hanover, MD, United StatesHQ checked Sep 28, 2026	5,001-10,000	9,426 contacts →
	Indirect evidence “Ciena (NYSE:CIEN) is the global leader in high-speed connectivity.” Source: RevenueBase Database · checked Sep 28, 2026
6	Windstream	Indirect evidence	Little Rock, AR, United StatesHQ checked Sep 28, 2026	10001+	7,275 contacts →
	Indirect evidence “Windstream and Uniti have merged - Please follow us at Uniti Group, Inc.” Source: RevenueBase Database · checked Sep 28, 2026
7	Arista Networks	Partial evidence	Santa Clara, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	5,101 contacts →
	Partial evidence “Arista Networks is an industry leader in data-driven, client to cloud networking for large data center/AI, campus and routing environments.” Source: RevenueBase Database · checked Sep 28, 2026
8	Viavi Solutions	Partial evidence	Chandler, AZ, United StatesHQ checked Sep 28, 2026	1,001-5,000	4,248 contacts →
	Partial 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
9	D-Link USA	Indirect evidence	Lake Forest, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	3,955 contacts →
	Indirect evidence “One Connection-Infinite Possibilities.” Source: RevenueBase Database · checked Sep 28, 2026
10	Black BOX	Strong evidence	Plano, TX, United StatesHQ checked Sep 28, 2026	1,001-5,000	3,667 contacts →
	Strong evidence “Black Box is a global leader in digital infrastructure solutions, delivering network and system integration, managed services, and technology products to Fortune 100 and top…” Source: RevenueBase Database · checked Sep 28, 2026
11	Zayo Group	Partial evidence	Denver, CO, United StatesHQ checked Sep 28, 2026	5,001-10,000	2,948 contacts →
	Partial evidence “For more than 18 years, Zayo Group of companies has helped the world’s most ambitious organizations build the infrastructure behind what’s next.” Source: RevenueBase Database · checked Sep 28, 2026
12	Hughes	Partial evidence	Germantown, MD, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,459 contacts →
	Partial evidence “Hughes Network Systems, LLC (HUGHES), an innovator in satellite and multi-transport technologies and networks since 1971, provides broadband equipment and services; managed…” Source: RevenueBase Database · checked Sep 28, 2026
13	Cirion Technologies	Indirect evidence	Miami, FL, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,996 contacts →
	Indirect evidence “We are the digital backbone of Latin America.” Source: RevenueBase Database · checked Sep 28, 2026
14	Infinera	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,959 contacts →
	Indirect evidence “Infinera is now part of Nokia.” Source: RevenueBase Database · checked Sep 28, 2026
15	IES Communications	Indirect evidence	Tempe, AZ, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,800 contacts →
	Indirect evidence “IES Communications a division of IES (NASDAQ: IESC) provides each client with a team of highly qualified dedicated professionals that deliver superior quality and cost effective…” Source: RevenueBase Database · checked Sep 28, 2026
16	Congruex	Indirect evidence	Boulder, CO, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,676 contacts →
	Indirect evidence “Congruex was formed in 2017 to take advantage of historic demand for digital connectivity.” Source: RevenueBase Database · checked Sep 28, 2026
17	ADC	Partial evidence	Eden Prairie, MN, United StatesHQ checked Sep 28, 2026	5,001-10,000	1,271 contacts →
	Partial evidence “We help the world communicate, supplying network equipment, software solutions, and integration services for broadband, multiservice networks that deliver data, video, and voice…” Source: RevenueBase Database · checked Sep 28, 2026
18	FLŌ Networks	Partial evidence	El Paso, TX, United StatesHQ checked Sep 28, 2026	501-1,000	1,250 contacts →
	Partial evidence “Today fast, flexible networks are the foundation of every successful organization.” Source: RevenueBase Database · checked Sep 28, 2026
19	ADVA	Indirect evidence	Norcross, GA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,068 contacts →
	Indirect evidence “We're a company founded on innovation and focused on helping our customers succeed.” Source: RevenueBase Database · checked Sep 28, 2026
20	Stack Infrastructure	Partial evidence	Denver, CO, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,036 contacts →
	Partial evidence “STACK provides digital infrastructure to scale the world’s most innovative companies.” Source: RevenueBase Database · checked Sep 28, 2026
21	XO Communications	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,000 contacts →
	Indirect evidence “XO Communications is a Verizon company that provides the technology that helps business and wholesale customers compete in a hyper-connected economy.” Source: RevenueBase Database · checked Sep 28, 2026
22	SEGRA	Partial evidence	Charlotte, NC, United StatesHQ checked Sep 28, 2026	1,001-5,000	950 contacts →
	Partial evidence “Segra owns and operates a wide and dense fiber-optic infrastructure footprint that provides state-of-the-art connectivity, cybersecurity, voice, cloud and colocation solutions…” Source: RevenueBase Database · checked Sep 28, 2026
23	Allied Telesis	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	816 contacts →
	Indirect evidence “Our world is increasing in complexity.” Source: RevenueBase Database · checked Sep 28, 2026
24	PLP	Partial evidence	Cleveland, OH, United StatesHQ checked Sep 28, 2026	1,001-5,000	783 contacts →
	Partial evidence “PLP protects the world’s most critical connections by creating stronger and more reliable networks.” Source: RevenueBase Database · checked Sep 28, 2026
25	Smartlink Group	Partial evidence	Annapolis, MD, United StatesHQ checked Sep 28, 2026	501-1,000	689 contacts →
	Partial evidence “Smartlink powers the digital infrastructure behind today’s connected world.” Source: RevenueBase Database · checked Sep 28, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: enterprise network infrastructure companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names enterprise network infrastructure companies.
Partial evidence: Its own public description names part of enterprise network infrastructure companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name enterprise network infrastructure companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 1,099 enterprise network infrastructure companies based in the United States

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Enterprise network infrastructure companies based in the United States at a glance

As of Sep 28, 2026

34.3%Verified-email coverage

139.2Average contacts per company

11-50Median size (employees)

2.0%Largest-city concentration · Miami

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

417

11-50

396

51-200

158

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 1,099 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 enterprise network infrastructure 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 “enterprise network infrastructure 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 enterprise network infrastructure 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 enterprise network infrastructure 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, 52,499 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 enterprise network infrastructure 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 enterprise network infrastructure companies are there based in the United States?

RevenueBase identified 1,099 enterprise network infrastructure 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?

Centurylink, headquartered in Monroe, tops this list with the largest team on record.

Which city has the most enterprise network infrastructure companies?

Miami leads with 22 headquartered companies, followed by Houston (21) and New York (19).

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 52,499 verified decision-maker contacts tracked across these 1,099 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.