Company lists · Data refreshed October 2026

Top 25 Grid cybersecurity companies worldwide

RevenueBase identified 1,291 company matches for grid cybersecurity companies worldwide as of October 2026 and tracks 20,488 professional contacts across them, including 7,230 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for grid cybersecurity companies worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 1, 2026. Country and city lists for grid cybersecurity companies follow the table.

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 RevenueBase SmartSearch · Exact Recorded Oct 1, 2026 How this list was built
1,291Companies
20,488Contacts tracked
7,230Verified emails
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The 25 largest grid cybersecurity companies worldwide

Ranked by team size
Top 25 of 1,291 company matches for grid cybersecurity companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 1, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchNanterre, FranceHQ recorded Oct 1, 20261,001-5,0003,673 contacts →

Exact match

“Orange Cyberdefense is the expert cybersecurity business unit of the Orange Group.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
2Exact matchHerndon, United StatesHQ recorded Oct 1, 20261,001-5,000636 contacts →

Exact match

“Everfox delivers trusted connectivity to protect the world's most critical environments, safeguarding the sensitive information behind decision advantage.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
3Exact matchHanover, MD, United StatesHQ recorded Oct 1, 2026501-1,000551 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
4Exact matchRiyadh, Saudi ArabiaHQ recorded Oct 1, 2026201-500493 contacts →

Exact match

“World-class leading edge cyber capabilities to enable and protect economic and physical critical infrastructure and government services.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
5Exact matchJakarta, IndonesiaHQ recorded Oct 1, 2026201-500388 contacts →

Exact match

“ITSEC Asia is a leading cybersecurity company in Indonesia, listed on the Indonesian Stock Exchange (“CYBR”), with over 400 employees across five countries.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
6Exact matchSan Francisco, CA, United StatesHQ recorded Oct 1, 2026201-500375 contacts →

Exact match

“We protect the world’s critical infrastructure from cyber threats.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
7Exact matchSwedenHQ recorded Oct 1, 2026201-500332 contacts →

Exact match

“Prevent Breach & Minimize Impact”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
8Exact matchReading, United KingdomHQ recorded Oct 1, 2026201-500303 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
9Exact matchRijswijk, NetherlandsHQ recorded Oct 1, 2026201-500233 contacts →

Exact match

“Fox-IT prevents, solves and mitigates the most serious cyber threats with innovative solutions for government, defense, law enforcement, critical infrastructure, banking, and…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
10Exact matchUtrecht, NetherlandsHQ recorded Oct 1, 2026201-500213 contacts →

Exact match

“Northwave Northwave offers an Intelligent combination of cyber security services to protect your information.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
11Exact matchSan Francisco, CA, United StatesHQ recorded Oct 1, 2026201-500211 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
12Exact matchGlobally Distributed, United StatesHQ recorded Oct 1, 2026201-500182 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
13Exact matchThatcham, United KingdomHQ recorded Oct 1, 202651-200159 contacts →

Exact match

“At Cyberfort we are passionate about the cyber security services we deliver for our customers which keeps their people, data, systems and technology infrastructure secure…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
14Exact matchSan Francisco, CA, United StatesHQ recorded Oct 1, 202651-200139 contacts →

Exact match

“Gridware is a technology company focused on protecting and enhancing the electrical grid.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
15Exact matchOslo, NorwayHQ recorded Oct 1, 202651-200138 contacts →

Exact match

“Netsecurity is a dedicated cyber security company that helps companies before, during and after an attack.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
16Exact matchEspoo, FinlandHQ recorded Oct 1, 2026501-1,000127 contacts →

Exact match

“Nixu is now DNV Cyber.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
17Exact matchRosh Haayin, IsraelHQ recorded Oct 1, 202651-200126 contacts →

Exact match

“Through our software-enabled hardware platforms, we enable secure and reliable operations, protecting against both today’s cybersecurity challenges and those yet to come.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
18Exact matchToulouse, FranceHQ recorded Oct 1, 202651-200126 contacts →

Exact match

“Since January 2007, ITrust has been offering cybersecurity solutions and expertise in 6 different countries on the European market.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
19Exact matchMadrid, SpainHQ recorded Oct 1, 202651-200124 contacts →

Exact match

“Empresa de Ciberseguridad soportada en Datos.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
20Exact matchCoimbra, PortugalHQ recorded Oct 1, 202651-200121 contacts →

Exact match

“ENEIDA.IO | Operational intelligence for smarter, sustainable grids Powering the future of the Low Voltage grid.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
21Exact matchChristiansburg, VA, United StatesHQ recorded Oct 1, 202651-200116 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
22Exact matchNorth Charleston, SC, United StatesHQ recorded Oct 1, 202651-200113 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
23Exact matchCastellón De La Plana, SpainHQ recorded Oct 1, 2026201-500110 contacts →

Exact match

“IT Security Consulting and Deployment- Sofistic is a cybersecurity company, born from researchers in this field, with offices in USA, Spain, Panama, Colombia, Chile and the…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
24Exact matchUnited StatesHQ recorded Oct 1, 202651-200106 contacts →

Exact match

“Tribastion Technologies Pvt Ltd specializes in delivering comprehensive cyber security consulting and managed security services to individuals and organizations.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
25Exact matchUnited StatesHQ recorded Oct 1, 202651-200101 contacts →

Exact match

“We are a premier cybersecurity services company providing unparalleled protection for your business.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase

Showing 25 of 1,291 grid cybersecurity companies worldwide

See the full list, filter by size, metro and specialty, and access 7,230 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Grid cybersecurity companies worldwide at a glance

As of Oct 1, 2026
35.3%Verified-email coverage
15.9Average contacts per company
1-10Median size (employees)
2.0%Largest-city concentration · London
Oct 1, 2026Page data refreshed

Companies by employee count

1-10
646
11-50
477
51-200
124
201-500
26
501-1,000
8
1,001-5,000
6
5,001-10,000
1
10001+
2

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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.
Coverage
Every country. Country and city lists for grid cybersecurity companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “grid cybersecurity companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 7,230 professional contacts with verified work emails across the full matched dataset. 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 October 1, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Grid cybersecurity companies by location

6 lists · largest first

Every Grid cybersecurity companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “grid cybersecurity companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many grid cybersecurity companies are there worldwide?

RevenueBase identified 1,291 company matches for grid cybersecurity companies worldwide as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Orange Cyberdefense tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most grid cybersecurity companies?

The United States leads with 254 companies, followed by India (115) and the United Kingdom (59). Every grid cybersecurity companies list by country and city is linked on this page.

Which city has the most grid cybersecurity companies?

London leads with 26 company records, followed by Dubai (18) and Bangalore (12).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 7,230 professional contacts with verified work emails tracked across these 1,291 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 1, 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.