Company lists · Data refreshed September 2026

Top 25 Scada security companies based in the United States

RevenueBase identified 338 scada security companies headquartered in the United States as of September 2026 and tracks 4,607 professional contacts across them, including 2,021 with verified work emails and 1,918 with mobile numbers. Houston is the largest hub.

This list covers scada security 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, how directly it supports the match, 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 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 HQ checked on every row Match evidence on every row Refreshed Sep 6, 2026 86% judged on-target in blind review
338Companies
4,607Contacts tracked
2,021Verified emails
1,918Mobile numbers
Explore all 338 companies → Free signup · no credit card · 500 free credits

The 25 largest scada security companies based in the United States

Ranked by team size
Top 25 of 338 scada security companies based in the United States, ranked by team size, largest first. Data refreshed Sep 6, 2026. Evidence rates how directly each company's own description names scada security companies: 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
Dragos, INCIndirect evidence
Hanover, MD, United StatesHQ checked Sep 6, 2026501-1,000551

“Dragos provides the most effective OT cybersecurity technology for industrial and critical infrastructure to deliver on our global mission: to safeguard civilization.”

Source: company website · checked Sep 6, 2026
2
Baxter Clewis CybersecurityIndirect evidence
Cedar Hill, TX, United StatesHQ checked Sep 6, 2026201-500255

“Baxter Clewis Cybersecurity, we bring to the table a unique set of experiences that allow us to best serve your cybersecurity needs.”

Source: company website · checked Sep 6, 2026
3Reston, VA, United StatesHQ checked Sep 6, 20261,001-5,000204

“MindPoint Group, a Quantum Sky company, is a cybersecurity specialist trusted by U.S.”

Source: company website · checked Sep 6, 2026
4
DeepseasIndirect evidence
Globally Distributed, United StatesHQ checked Sep 6, 2026201-500182

“With 30 years of experience in cyber defense, DeepSeas is trusted by nearly clients around the world, including Fortune 100 enterprises and mid-market organizations, municipality…”

Source: company website · checked Sep 6, 2026
5
Ampcus CyberIndirect evidence
Chantilly, VA, United StatesHQ checked Sep 6, 20261,001-5,000170

“Trusted By 2,880+ World-Class Brands And Organizations Of All Sizes…!”

Source: company website · checked Sep 6, 2026
6
RMC GlobalIndirect evidence
Arlington, VA, United StatesHQ checked Sep 6, 202651-200167

“We believe resilience depends on minimizing and managing the increasing risks facing the critical infrastructure and industrial systems that support our country, companies, and…”

Source: company website · checked Sep 6, 2026
7
NuharborIndirect evidence
Colchester, VT, United StatesHQ checked Sep 6, 202651-200151

“nuHarbor is a U.S-based cybersecurity firm trusted by public sector and critical infrastructure organizations nationwide.”

Source: company website · checked Sep 6, 2026
8
FoxguardPartial evidence
Christiansburg, VA, United StatesHQ checked Sep 6, 202651-200116

“Foxguard delivers comprehensive OT Cyber Security and Compute Solutions tailored to meet the unique needs of critical infrastructures.”

Source: company website · checked Sep 6, 2026
9
DirectdefenseStrong evidence
Denver, CO, United StatesHQ checked Sep 6, 202651-200111

“DirectDefense provides enterprise risk assessments, penetration testing, ICS/SCADA security services, and 24/7 managed security services for companies of all sizes.”

Source: company website · checked Sep 6, 2026
10
SixgenIndirect evidence
Annapolis, MD, United StatesHQ checked Sep 6, 202651-200103

“SIXGEN provides world-class cybersecurity services and products to protect government organizations and commercial industries.”

Source: company website · checked Sep 6, 2026
11
EverlineStrong evidence
Houston, TX, United StatesHQ checked Sep 6, 2026201-500102

“EverLine provides fully-integrated compliance, SCADA/IT, control room and security services to more than 200 customers nationwide through a unique Technical Stack.”

Source: company website · checked Sep 6, 2026
12
Techguard SecurityPartial evidence
O'fallon, IL, United StatesHQ checked Sep 6, 202651-20080

“Our Cybersecurity Specialists are highly educated and certified professionals who have utilized their extensive IT security experience to support both Fortune 500 businesses and…”

Source: company website · checked Sep 6, 2026
13
Apollo Information SystemsIndirect evidence
Dallas, TX, United StatesHQ checked Sep 6, 202651-20064

“Apollo Information Systems delivers intelligence-led cybersecurity solutions for government agencies, educational institutions, and enterprises.”

Source: company website · checked Sep 6, 2026
14
Trofholz Technologies, INCIndirect evidence
Sacramento, CA, United StatesHQ checked Sep 6, 202651-20060

“Trofholz Technologies is a Woman-Owned; Veteran-Owned Small Business located in Sacramento, California.”

Source: company website · checked Sep 6, 2026
15
Sandtech SolutionsIndirect evidence
San Antonio, TX, United StatesHQ checked Sep 6, 202611-5058

“SandTech Solutions is a Certified 8a member as well as a Service Disabled Veteran-Owned Small Business (SDVOSB).”

Source: company website · checked Sep 6, 2026
16
Def-Logix, INCIndirect evidence
San Antonio, TX, United StatesHQ checked Sep 6, 202651-20058
Source: company website · checked Sep 6, 2026
17
Secure TracesPartial evidence
Alpharetta, GA, United StatesHQ checked Sep 6, 202651-20052

“Secure Traces is a unique cyber security services provider with an impeccable track record of delivering outstanding services, we are driven by passion and backed by our extensive…”

Source: company website · checked Sep 6, 2026
18
AVINTIndirect evidence
Herndon, VA, United StatesHQ checked Sep 6, 202651-20048

“Your Vision Achieved.”

Source: company website · checked Sep 6, 2026
19
Clearfocus TechnologiesIndirect evidence
Leesburg, VA, United StatesHQ checked Sep 6, 202651-20043

“ClearFocus® Technologies provides advanced cybersecurity services that secure our nation’s most sensitive assets.”

Source: company website · checked Sep 6, 2026
20
Sphinx Solutions INCPartial evidence
Herndon, VA, United StatesHQ checked Sep 6, 202611-5038

“Sphinx Solutions is an entrepreneurial cyber security company that helps private- and public-sector organizations take advantage of solutions that match today’s security…”

Source: company website · checked Sep 6, 2026
21NY, United StatesHQ checked Sep 6, 202651-20038

“Are You Ready to Protect Your Business with the Best Cybersecurity Solutions?”

Source: company website · checked Sep 6, 2026
22Nashville, TN, United StatesHQ checked Sep 6, 202651-20037

“Redspin, a division of Clearwater, has become one of the most trusted cybersecurity companies for the Defense Industrial Base.”

Source: company website · checked Sep 6, 2026
23
Phoenix CyberPartial evidence
Scottsdale, AZ, United StatesHQ checked Sep 6, 202611-5032

“Phoenix Cyber is a leading cybersecurity services company providing security engineering, operations, and technical cybersecurity expertise to organizations determined to mitigate…”

Source: company website · checked Sep 6, 2026
24
SquadraIndirect evidence
Mclean, VA, United StatesHQ checked Sep 6, 202611-5031

“Squadra Solutions delivers expert cybersecurity architecture, engineering, and advisory services to federal agencies, enterprises, and higher education institutions.”

Source: company website · checked Sep 6, 2026
25
SeculoreIndirect evidence
Odenton, MD, United StatesHQ checked Sep 6, 202611-5031

“SecuLore was acquired by Motorola Solutions in 2026.”

Source: company website · checked Sep 6, 2026

Showing 25 of 338 scada security companies based in the United States

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Scada security companies based in the United States at a glance

As of Sep 6, 2026
1-10Median size (employees)
HoustonLargest hub · 16 HQs
1,918Contacts with mobile numbers
Sep 6, 2026Data refreshed

Companies by employee count

1-10
181
11-50
112
51-200
34
201-500
6
501-1,000
1
1,001-5,000
3
5,001-10,000
1

Verified emails by last verification

0–30
1,866
31–60
134
61–90
0
90–180
0
180+
21

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 scada security companies, 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 “scada security companies”. 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 scada security 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 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, 2,021 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

How many scada security companies are there based in the United States?

RevenueBase identified 338 scada security 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?

Dragos, INC, headquartered in Hanover, tops this list with the largest team on record.

Which city has the most scada security companies?

Houston leads with 16 headquartered companies, followed by Austin (6) and Dallas (6).

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 2,021 verified decision-maker contacts tracked across these 338 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 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.