Company lists · Data refreshed September 2026

Top 25 Oil and gas cybersecurity companies worldwide

Name: Oil and gas cybersecurity companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 1,422 companies tracked

RevenueBase identified 1,422 oil and gas cybersecurity companies worldwide as of September 2026 and tracks 25,170 professional contacts across them, including 8,112 with verified work emails and 4,362 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers oil and gas cybersecurity companies 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 5, 2026. Country and city lists for oil and gas cybersecurity companies 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 5, 2026 86% judged on-target in blind review

1,422Companies

25,170Contacts tracked

8,112Verified emails

4,362Mobile numbers

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The 25 largest oil and gas cybersecurity companies worldwide

Ranked by team size

Top 25 of 1,422 oil and gas cybersecurity companies worldwide, ranked by team size, largest first. Data refreshed Sep 5, 2026. RevenueBase Smart Search rates how each company's information relates to oil and gas cybersecurity 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	Guidepoint Security	Partial evidence	Reston, VA, United StatesHQ checked Sep 5, 2026	1,001-5,000	1,232 contacts →
	Partial evidence “GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Source: RevenueBase Database · checked Sep 5, 2026
2	PAS	Indirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	201-500	1,231 contacts →
	Indirect evidence “PAS, part of Hexagon's Asset Lifecycle Intelligence division, delivers software solutions that prevent, detect, & remediate cyber threats, reduce process safety risks, and…” Source: RevenueBase Database · checked Sep 5, 2026
3	Trustwave, A Levelblue Company	Partial evidence	Chicago, IL, United StatesHQ checked Sep 5, 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 5, 2026
4	S2grupo	Partial evidence	Valencia, SpainHQ checked Sep 5, 2026	501-1,000	683 contacts →
	Partial 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 5, 2026
5	Everfox	Indirect evidence	Herndon, United StatesHQ checked Sep 5, 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 5, 2026
6	Dragos, INC	Partial evidence	Hanover, MD, United StatesHQ checked Sep 5, 2026	501-1,000	551 contacts →
	Partial 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 5, 2026
7	own.security	Partial evidence	Paris, FranceHQ checked Sep 5, 2026	51-200	506 contacts →
	Partial 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 5, 2026
8	Securityhq	Partial evidence	London, United KingdomHQ checked Sep 5, 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 5, 2026
9	Protechmanize	Partial evidence	Thane, IndiaHQ checked Sep 5, 2026	501-1,000	484 contacts →
	Partial 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 5, 2026
10	Safeway	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 5, 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 5, 2026
11	G Data Cyberdefense	Indirect evidence	Bochum, GermanyHQ checked Sep 5, 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 5, 2026
12	Nozomi Networks	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 5, 2026	201-500	375 contacts →
	Indirect evidence “We protect the world’s critical infrastructure from cyber threats.” Source: RevenueBase Database · checked Sep 5, 2026
13	T Security - Dach	Indirect evidence	Bonn, GermanyHQ checked Sep 5, 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 5, 2026
14	Bridewell	Indirect evidence	Reading, United KingdomHQ checked Sep 5, 2026	201-500	303 contacts →
	Indirect 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 5, 2026
15	Obrela	Indirect evidence	London, United KingdomHQ checked Sep 5, 2026	201-500	242 contacts →
	Indirect evidence “Obrela Security Industries is a global provider of cyber security services.” Source: RevenueBase Database · checked Sep 5, 2026
16	Trillium Information Security Systems	Partial evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	51-200	239 contacts →
	Partial evidence “Trillium Information Security Systems (TISS) is a leading global provider of cybersecurity solutions and services, established in 2005.” Source: RevenueBase Database · checked Sep 5, 2026
17	Alhambra IT	Indirect evidence	Madrid, SpainHQ checked Sep 5, 2026	201-500	229 contacts →
	Indirect evidence “Alhambra es una compañía IT que ayuda a cualquier tipo de organización a proteger sus datos, sus comunicaciones y sus procesos contra todo tipo de incidentes a través de Servicios…” Source: RevenueBase Database · checked Sep 5, 2026
18	Safeaeon INC	Partial evidence	Pleasanton, CA, United StatesHQ checked Sep 5, 2026	51-200	196 contacts →
	Partial evidence “SafeAeon leads the industry as a top-tier Cybersecurity-as-a-Service provider, delivering 24x7 premium Managed Security Services with AI-powered and human-driven 24x7 SOC…” Source: RevenueBase Database · checked Sep 5, 2026
19	S21sec	Partial evidence	Madrid, SpainHQ checked Sep 5, 2026	201-500	191 contacts →
	Partial evidence “S21Sec, Cyber Solutions by Thales, is a leading European Cybersecurity pure-player, with more than 400 security experts and an Iberian SOC.” Source: RevenueBase Database · checked Sep 5, 2026
20	Deepseas	Indirect evidence	Globally Distributed, United StatesHQ checked Sep 5, 2026	201-500	182 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 5, 2026
21	Ifluids Engineering	Strong evidence	Chennai, IndiaHQ checked Sep 5, 2026	51-200	180 contacts →
	Strong evidence “iFluids Engineering, an ISO 9001:2015 certified company provides specialized services predominantly for Oil & Gas, Petro-chemical and also other industrial sectors.” Source: RevenueBase Database · checked Sep 5, 2026
22	Cyber Advisors	Indirect evidence	Maple Grove, MN, United StatesHQ checked Sep 5, 2026	201-500	176 contacts →
	Indirect evidence “Cyber Advisors is a nationwide leader in cyber security, providing a comprehensive range of Offensive, Defensive, and Risk Management services.” Source: RevenueBase Database · checked Sep 5, 2026
23	Sapphire	Indirect evidence	Newcastle Upon Tyne, United KingdomHQ checked Sep 5, 2026	51-200	168 contacts →
	Indirect evidence “Sapphire delivers comprehensive cyber solutions tailored to your needs, spanning across consultancy, managed services, IT/OT and beyond.” Source: RevenueBase Database · checked Sep 5, 2026
24	Cyberfort	Indirect evidence	Thatcham, United KingdomHQ checked Sep 5, 2026	51-200	159 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 5, 2026
25	Nuharbor	Partial evidence	Colchester, VT, United StatesHQ checked Sep 5, 2026	51-200	151 contacts →
	Partial evidence “nuHarbor is a U.S-based cybersecurity firm trusted by public sector and critical infrastructure organizations nationwide.” Source: RevenueBase Database · checked Sep 5, 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: oil and gas cybersecurity 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 oil and gas cybersecurity companies.
Partial evidence: Its own public description names part of oil and gas cybersecurity companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name oil and gas cybersecurity 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 1,422 oil and gas cybersecurity companies worldwide

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Oil and gas cybersecurity companies worldwide at a glance

As of Sep 5, 2026

32.2%Verified-email coverage

17.3%Mobile-number coverage

17.7Average contacts per company

11-50Median size (employees)

4.9%Largest-city concentration · London

Sep 5, 2026Page data refreshed

Companies by employee count

1-10

690

11-50

533

51-200

146

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 oil and gas cybersecurity 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.
Coverage: 12 countries, largest first: the United States, India, the United Kingdom, Brazil, Canada, Australia, France, Spain, the United Arab Emirates, Germany and 2 more. Country and city lists for oil and gas cybersecurity companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “oil and gas cybersecurity 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 oil and gas cybersecurity 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 oil and gas cybersecurity companies, 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, 8,112 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 between September 5, 2026 and September 14, 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.

Oil and gas cybersecurity companies by location

13 lists · largest first

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

Countries

Cities

Oil and gas cybersecurity companies based in London, United Kingdom41

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 oil and gas cybersecurity 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 oil and gas cybersecurity companies are there worldwide?

RevenueBase identified 1,422 oil and gas cybersecurity companies 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?

Guidepoint Security, headquartered in Reston, tops this list with the largest team on record.

Which country has the most oil and gas cybersecurity companies?

The United States leads with 564 companies, followed by India (165) and the United Kingdom (141). Every oil and gas cybersecurity companies list by country and city is linked on this page.

Which city has the most oil and gas cybersecurity companies?

London leads with 69 headquartered companies, followed by Sao Paulo (32) and Dubai (27).

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 8,112 verified decision-maker contacts tracked across these 1,422 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled from the company graph between September 5, 2026 and September 14, 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.