Company lists · Data refreshed September 2026

Top 25 Cyber security companies for utilities worldwide

Name: Cyber security companies for utilities worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 3,293 companies tracked

RevenueBase identified 3,293 cyber security companies for utilities worldwide as of September 2026 and tracks 47,134 professional contacts across them, including 15,316 with verified work emails. The United States is the largest market and London the largest hub.

This list covers cyber security companies for utilities worldwide, 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. Country and city lists for cyber security companies for utilities follow the table.

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

3,293Companies

47,134Contacts tracked

15,316Verified emails

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The 25 largest cyber security companies for utilities worldwide

Ranked by team size

Top 25 of 3,293 cyber security companies for utilities worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to cyber security companies for utilities: 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	Orange Cyberdefense	Indirect evidence	Nanterre, FranceHQ checked Sep 28, 2026	1,001-5,000	3,673 contacts →
	Indirect evidence “Orange Cyberdefense is the expert cybersecurity business unit of the Orange Group.” Source: RevenueBase Database · checked Sep 28, 2026
2	Trustwave, A Levelblue Company	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	501-1,000	874 contacts →
	Partial evidence “Trustwave, a LevelBlue Company, is a globally recognized cybersecurity leader that reduces cyber risk and fortifies organizations against disruptive and damaging cyber threats.” Source: RevenueBase Database · checked Sep 28, 2026
3	S2grupo	Indirect evidence	Valencia, SpainHQ checked Sep 28, 2026	501-1,000	683 contacts →
	Indirect evidence “We are a European company specialising in cybersecurity, cyberintelligence and cyberdefence, with more than 20 years of experience protecting critical infrastructures and…” Source: RevenueBase Database · checked Sep 28, 2026
4	I-Tracing	Partial evidence	Courbevoie, FranceHQ checked Sep 28, 2026	1,001-5,000	639 contacts →
	Partial evidence “I-TRACING, pure player and cybersecurity service provider leader in France, supports over 600 clients around the world in managing their cyber risks, from anticipating threats to…” Source: RevenueBase Database · checked Sep 28, 2026
5	Everfox	Indirect evidence	Herndon, United StatesHQ checked Sep 28, 2026	1,001-5,000	636 contacts →
	Indirect evidence “Everfox delivers trusted connectivity to protect the world's most critical environments, safeguarding the sensitive information behind decision advantage.” Source: RevenueBase Database · checked Sep 28, 2026
6	Advens	Indirect evidence	Paris, ItalyHQ checked Sep 28, 2026	501-1,000	586 contacts →
	Indirect evidence “Advens is a European, independent and outstanding leader in cybersecurity.” Source: RevenueBase Database · checked Sep 28, 2026
7	Dragos, INC	Indirect evidence	Hanover, MD, United StatesHQ checked Sep 28, 2026	501-1,000	551 contacts →
	Indirect evidence “Dragos provides the most effective OT cybersecurity technology for industrial and critical infrastructure to deliver on our global mission: to safeguard civilization.” Source: RevenueBase Database · checked Sep 28, 2026
8	Paramount Computer Systems	Indirect evidence	Dubai, United Arab EmiratesHQ checked Sep 28, 2026	201-500	525 contacts →
	Indirect evidence “Protection is Paramount!” Source: RevenueBase Database · checked Sep 28, 2026
9	Ultraviolet Cyber	Strong evidence	Mclean, VA, United StatesHQ checked Sep 28, 2026	501-1,000	523 contacts →
	Strong evidence “UltraViolet Cyber is the only security operations partner that unifies red, blue, and purple team capabilities into one integrated program, finding what's vulnerable, stopping…” Source: RevenueBase Database · checked Sep 28, 2026
10	own.security	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	51-200	506 contacts →
	Indirect evidence “Founded in 2008, OWN is a Pure Player in cybersecurity, with offices in Paris, Rennes and Toulouse, but with a presence throughout France with its fully remote employees.” Source: RevenueBase Database · checked Sep 28, 2026
11	Securityhq	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	501-1,000	502 contacts →
	Partial evidence “SecurityHQ, a global cybersecurity company pioneering Security Performance Engineering for stronger operational performance and resilience.” Source: RevenueBase Database · checked Sep 28, 2026
12	Sirar By STC	Partial evidence	Riyadh, Saudi ArabiaHQ checked Sep 28, 2026	201-500	493 contacts →
	Partial evidence “World-class leading edge cyber capabilities to enable and protect economic and physical critical infrastructure and government services.” Source: RevenueBase Database · checked Sep 28, 2026
13	Protechmanize	Indirect evidence	Thane, IndiaHQ checked Sep 28, 2026	501-1,000	484 contacts →
	Indirect evidence “At ProTechmanize, we’re committed to making cybersecurity simpler, stronger, and more future ready for the organizations we serve.” Source: RevenueBase Database · checked Sep 28, 2026
14	Safeway	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 28, 2026	201-500	399 contacts →
	Indirect evidence “A SAFEWAY empresa que integra a plataforma de cibersegurança do Grupo Stefanini se une a Protega.” Source: RevenueBase Database · checked Sep 28, 2026
15	PT Itsec Asia TBK	Indirect evidence	Jakarta, IndonesiaHQ checked Sep 28, 2026	201-500	388 contacts →
	Indirect evidence “ITSEC Asia is a leading cybersecurity company in Indonesia, listed on the Indonesian Stock Exchange (“CYBR”), with over 400 employees across five countries.” Source: RevenueBase Database · checked Sep 28, 2026
16	G Data Cyberdefense	Indirect evidence	Bochum, GermanyHQ checked Sep 28, 2026	501-1,000	386 contacts →
	Indirect evidence “Progress is our motivation because we are convinced that it will lead us to a successful future – independent of industries, companies and social classes.” Source: RevenueBase Database · checked Sep 28, 2026
17	Nozomi Networks	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	201-500	375 contacts →
	Partial evidence “We protect the world’s critical infrastructure from cyber threats.” Source: RevenueBase Database · checked Sep 28, 2026
18	T Security - Dach	Indirect evidence	Bonn, GermanyHQ checked Sep 28, 2026	1,001-5,000	363 contacts →
	Indirect evidence “Wir glauben an eine sichere digitale Zukunft mit minimalen Risiken und maximalen Chancen.” Source: RevenueBase Database · checked Sep 28, 2026
19	SK Shieldus	Indirect evidence	경기도, South KoreaHQ checked Sep 28, 2026	5,001-10,000	348 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
20	Truesec	Indirect evidence	SwedenHQ checked Sep 28, 2026	201-500	332 contacts →
	Indirect evidence “Prevent Breach & Minimize Impact” Source: RevenueBase Database · checked Sep 28, 2026
21	Bridewell	Strong evidence	Reading, United KingdomHQ checked Sep 28, 2026	201-500	303 contacts →
	Strong evidence “Bridewell is the trusted cyber security partner for organisations operating within Critical National Infrastructure (CNI), as well as companies who want the highest standard of…” Source: RevenueBase Database · checked Sep 28, 2026
22	Cipher A Prosegur Company	Indirect evidence	Miami, FL, United StatesHQ checked Sep 28, 2026	201-500	295 contacts →
	Indirect evidence “We are Cipher, a company from the Prosegur group specializing in Cybersecurity.” Source: RevenueBase Database · checked Sep 28, 2026
23	Lumifi	Strong evidence	Scottsdale, AZ, United StatesHQ checked Sep 28, 2026	51-200	249 contacts →
	Strong evidence “Lumifi Cyber helps organizations illuminate their cyber defense with continuous protection across the full security lifecycle.” Source: RevenueBase Database · checked Sep 28, 2026
24	Cyberani By Aramco Digital	Indirect evidence	Riyadh, Saudi ArabiaHQ checked Sep 28, 2026	201-500	241 contacts →
	Indirect evidence “Cyberani is an Aramco Digital company that is dedicated to safeguarding the digital frontiers of industry leaders and government agencies.” Source: RevenueBase Database · checked Sep 28, 2026
25	Fox-It	Partial evidence	Rijswijk, NetherlandsHQ checked Sep 28, 2026	201-500	233 contacts →
	Partial evidence “Fox-IT prevents, solves and mitigates the most serious cyber threats with innovative solutions for government, defense, law enforcement, critical infrastructure, banking, and…” 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: cyber security companies for utilities. 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 cyber security companies for utilities.
Partial evidence: Its own public description names part of cyber security companies for utilities, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cyber security companies for utilities. 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 3,293 cyber security companies for utilities worldwide

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Cyber security companies for utilities worldwide at a glance

As of Sep 28, 2026

32.5%Verified-email coverage

14.3Average contacts per company

11-50Median size (employees)

2.2%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

1,619

11-50

1,253

51-200

295

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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 cyber security companies for utilities, 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.
Coverage: Every country. Country and city lists for cyber security companies for utilities are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “cyber security companies for utilities”. 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 cyber security companies for utilities), 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 cyber security companies for utilities, and records with no verified work email.
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, 15,316 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.

Cyber security companies for utilities by location

24 lists · largest first

Every Cyber security companies for utilities list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 cyber security companies for utilities, 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 cyber security companies for utilities are there worldwide?

RevenueBase identified 3,293 cyber security companies for utilities worldwide 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?

Orange Cyberdefense, headquartered in Paris, tops this list with the largest team on record.

Which country has the most cyber security companies for utilities?

The United States leads with 714 companies, followed by India (298) and the United Kingdom (159). Every cyber security companies for utilities list by country and city is linked on this page.

Which city has the most cyber security companies for utilities?

London leads with 73 headquartered companies, followed by Dubai (45) and Paris (28).

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 15,316 verified decision-maker contacts tracked across these 3,293 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.