Company lists · Data refreshed August 2026

Top 25 5g cybersecurity providers based in the United States

RevenueBase identified 875 5g cybersecurity providers headquartered in the United States as of August 2026 and tracks 28,701 professional contacts across them, including 8,625 with verified work emails and 6,787 with mobile numbers. New York is the largest hub.

This list covers 5g cybersecurity 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. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed August 30, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 Match evidence on every row Refreshed Aug 30, 2026 86% judged on-target in blind review
875Companies
28,701Contacts tracked
8,625Verified emails
6,787Mobile numbers
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The 25 largest 5g cybersecurity providers based in the United States

Ranked by team size
Top 25 of 875 5g cybersecurity providers based in the United States, ranked by team size, largest first. Data refreshed Aug 30, 2026. Evidence rates how directly each company's own description names 5g cybersecurity providers: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
SymantecPartial evidence
San Jose, CA, United States10001+11,179

“Your backstage pass to the most epic cybersecurity solutions on the market for Endpoint, Network, Data and Cloud security.”

Source: company website · checked Aug 30, 2026
2
BarracudaPartial evidence
Alpharetta, GA, United States1,001-5,0002,108

“Barracuda is a leading global cybersecurity company providing complete protection against complex threats for all size business.”

Source: company website · checked Aug 30, 2026
3
ImpervaIndirect evidence
Austin, TX, United States10001+1,211

“On Dec.”

Source: company website · checked Aug 30, 2026
4
Watchguard TechnologiesIndirect evidence
Seattle, WA, United States1,001-5,0001,054

“WatchGuard® Technologies, Inc.”

Source: company website · checked Aug 30, 2026
5
Ultraviolet CyberIndirect evidence
Phoenix, AZ, United States501-1,000517

“UltraViolet Cyber is the only security operations partner that unifies red, blue, and purple team capabilities into one integrated program.”

Source: company website · checked Aug 30, 2026
6
SecurityhqPartial evidence
New York, NY, United States501-1,000492

“SecurityHQ, a global cybersecurity company pioneering Security Performance Engineering for stronger operational performance and resilience.”

Source: company website · checked Aug 30, 2026
7
MnemonicPartial evidence
Redwood City, CA, United States201-500345

“With offices in Oslo, Stavanger, Trondheim, Stockholm, Copenhagen, Utrecht and London, we deliver cybersecurity services across Europe.”

Source: company website · checked Aug 30, 2026
8
Cynet SecurityPartial evidence
Boston, MA, United States201-500304

“Cynet’s unified, AI-powered cybersecurity platform brings together a full suite of security capabilities in a single, simple solution, backed by 24x7 SOC support.”

Source: company website · checked Aug 30, 2026
9
CenturumPartial evidence
San Diego, CA, United States201-500284

“Our core capabilities - Cybersecurity, Systems Integration, Communications and Network Engineering, Software Engineering, Operational and Technical Support, and Information…”

Source: company website · checked Aug 30, 2026
10
TeldatPartial evidence
Miami, FL, United States201-500259

“Teldat develops cybersecurity solutions that place us at the forefront of technological developments.”

Source: company website · checked Aug 30, 2026
11
LumifiIndirect evidence
Scottsdale, AZ, United States51-200247

“Lumifi Cyber helps organizations illuminate their cyber defense with continuous protection across the full security lifecycle.”

Source: company website · checked Aug 30, 2026
12
Hillstone NetworksIndirect evidence
Santa Clara, CA, United States1,001-5,000231

“Hillstone Networks’ Integrative Cyber Security approach delivers coverage, control, and consolidation to secure digital transformation for more than enterprises worldwide.”

Source: company website · checked Aug 30, 2026
13
BetacomPartial evidence
St Augustine, FL, United States201-500223

“Betacom 5G-as-a-Service is the industry’s first fully managed private wireless service.”

Source: company website · checked Aug 30, 2026
14
VeherePartial evidence
San Francisco, CA, United States201-500210

“Vehere is an AI cybersecurity company operating at the intersection of national security and enterprise security.”

Source: company website · checked Aug 30, 2026
15
Netdata CybersecurityPartial evidence
Miami, FL, United States201-500209

“Netdata is a leading global cybersecurity services partner with more than 200 certified engineers and over 1,500 certifications, widely recognized as a partner of Palo Alto…”

Source: company website · checked Aug 30, 2026
16
AGIOPartial evidence
Oklahoma City, OK, United States201-500205

“Agio is a hybrid cybersecurity and managed IT organization that combines predictive intelligence with human brilliance to empower clients with next-generation cyber protection and…”

Source: company website · checked Aug 30, 2026
17
Hitachi CyberIndirect evidence
Santa Clara, CA, United States501-1,000161

“Hitachi Systems Trusted Cyber Management Inc.”

Source: company website · checked Aug 30, 2026
18
At&t CybersecurityPartial evidence
Dallas, TX, United States1,001-5,000158

“AT & T Cybersecurity’s Edge-to-Edge technologies provide phenomenal threat intelligence, collaborative defense, security without the seams, and solutions that fit your business.”

Source: company website · checked Aug 30, 2026
19
Adapt ForwardPartial evidence
North Charleston, SC, United States51-200130

“Adapt Forward helps government agencies outpace adversaries through proven Cybersecurity Service Provider (CSSP) operations, mission-focused innovation, and a people first culture…”

Source: company website · checked Aug 30, 2026
20Alpharetta, GA, United States1,001-5,000125

“With over 25 years of expertise, PDI Security and Network Solutions (formerly known as Nuspire) is redefining cybersecurity and network management through intelligent unification…”

Source: company website · checked Aug 30, 2026
21
CNF TechnologiesPartial evidence
San Antonio, TX, United States51-200120

“CNF is a top cybersecurity provider in San Antonio Texas.”

Source: company website · checked Aug 30, 2026
22Columbia, MD, United States51-200119

“SealingTech, a Parsons Company, rapidly delivers innovative, agile cybersecurity solutions that modernize, protect, and defend the networks and systems of the federal government…”

Source: company website · checked Aug 30, 2026
23
Accessit GroupPartial evidence
King Of Prussia, PA, United States51-20092

“25 Years Leading in Cybersecurity, and we’re just getting started.”

Source: company website · checked Aug 30, 2026
24
Ipkeys TechnologiesPartial evidence
Annapolis Junction, MD, United States51-20089

“IPKeys Technologies is a leading provider of cybersecurity products and services to the Department of Defense and other Federal Government Agencies.”

Source: company website · checked Aug 30, 2026
25
Vertek CorporationPartial evidence
Burlington, VT, United States51-20076

“At Vertek, we deliver advanced cybersecurity solutions that empower businesses to protect their digital assets and achieve peace of mind.”

Source: company website · checked Aug 30, 2026

Showing 25 of 875 5g cybersecurity providers based in the United States

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5g cybersecurity providers based in the United States at a glance

As of Aug 30, 2026
11-50Median size (employees)
New YorkLargest hub · 24 HQs
6,787Contacts with mobile numbers
Aug 30, 2026Data refreshed

Companies by employee count

1-10
397
11-50
331
51-200
104
201-500
21
501-1,000
8
1,001-5,000
7
10001+
4

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 5g cybersecurity providers, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “5g cybersecurity providers”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among 5g cybersecurity providers, 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 an evidence 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, 8,625 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 August 30, 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

How many 5g cybersecurity providers are there based in the United States?

RevenueBase identified 875 5g cybersecurity providers headquartered in the United States as of August 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?

Symantec, headquartered in San Jose, tops this list with the largest team on record.

Which city has the most 5g cybersecurity providers?

New York leads with 24 headquartered companies, followed by Dallas (19) and Houston (16).

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 8,625 verified decision-maker contacts tracked across these 875 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 30, 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 SmartSearch, 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.