Company lists · Data refreshed September 2026

Top 25 24/7 security operations centers worldwide

Name: 24/7 security operations centers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 3,190 companies tracked

RevenueBase identified 3,190 24/7 security operations centers worldwide as of September 2026 and tracks 65,135 professional contacts across them, including 23,056 with verified work emails. The United States is the largest market and London the largest hub.

This list covers 24/7 security operations centers 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 27, 2026. Country and city lists for 24/7 security operations centers 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 27, 2026 86% judged on-target in blind review

3,190Companies

65,135Contacts tracked

23,056Verified emails

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The 25 largest 24/7 security operations centers worldwide

Ranked by team size

Top 25 of 3,190 24/7 security operations centers worldwide, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to 24/7 security operations centers: 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	Sophos	Indirect evidence	Abingdon, United KingdomHQ checked Sep 27, 2026	5,001-10,000	4,925 contacts →
	Indirect evidence “Sophos is a cybersecurity leader defending organizations globally with an AI-driven platform and expert-led services.” Source: RevenueBase Database · checked Sep 27, 2026
2	Arctic Wolf	Indirect evidence	Eden Prairie, MN, United StatesHQ checked Sep 27, 2026	1,001-5,000	3,145 contacts →
	Indirect evidence “Every year new technologies, vendors, and solutions emerge-yet despite this constant innovation, high-profile breaches are all over the headlines.” Source: RevenueBase Database · checked Sep 27, 2026
3	Guidepoint Security	Partial evidence	Reston, VA, United StatesHQ checked Sep 27, 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 27, 2026
4	Netenrich	Strong evidence	San Jose, CA, United StatesHQ checked Sep 27, 2026	501-1,000	889 contacts →
	Strong evidence “Netenrich is redefining security operations by shifting the focus from "efficiency"(speed) to "efficacy"(comprehensive coverage).” Source: RevenueBase Database · checked Sep 27, 2026
5	Trustwave, A Levelblue Company	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	501-1,000	874 contacts →
	Indirect 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 27, 2026
6	SISA	Partial evidence	Bengaluru, IndiaHQ checked Sep 27, 2026	201-500	743 contacts →
	Partial evidence “SISA is a global forensics-driven cybersecurity solutions company, trusted by leading organizations for securing their businesses with robust preventive, detective, and corrective…” Source: RevenueBase Database · checked Sep 27, 2026
7	Huntress	Indirect evidence	Columbia, MD, United StatesHQ checked Sep 27, 2026	501-1,000	696 contacts →
	Indirect evidence “Protect Your Endpoints, Identities, Logs, and Employees.” Source: RevenueBase Database · checked Sep 27, 2026
8	Esentire	Indirect evidence	Waterloo, ON, CanadaHQ checked Sep 27, 2026	501-1,000	649 contacts →
	Indirect evidence “eSentire is a leader in Controlled Autonomy SecOps, protecting organizations across 35+ industries around the world.” Source: RevenueBase Database · checked Sep 27, 2026
9	Network Intelligence	Partial evidence	Plano, TX, United StatesHQ checked Sep 27, 2026	501-1,000	641 contacts →
	Partial evidence “At Network Intelligence, we combine our team of 500+ security professionals with Transilience – our cutting-edge AI platform.” Source: RevenueBase Database · checked Sep 27, 2026
10	I-Tracing	Indirect evidence	Courbevoie, FranceHQ checked Sep 27, 2026	1,001-5,000	639 contacts →
	Indirect 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 27, 2026
11	Advens	Indirect evidence	Paris, ItalyHQ checked Sep 27, 2026	501-1,000	586 contacts →
	Indirect evidence “Advens is a European, independent and outstanding leader in cybersecurity.” Source: RevenueBase Database · checked Sep 27, 2026
12	Group-Ib	Indirect evidence	SingaporeHQ checked Sep 27, 2026	501-1,000	528 contacts →
	Indirect evidence “Founded in 2003 and headquartered in Singapore, Group-IB is a leading creator of cybersecurity technologies to investigate, prevent, and fight digital crime.” Source: RevenueBase Database · checked Sep 27, 2026
13	Ultraviolet Cyber	Strong evidence	Mclean, VA, United StatesHQ checked Sep 27, 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 27, 2026
14	own.security	Indirect evidence	Paris, FranceHQ checked Sep 27, 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 27, 2026
15	Palo Alto Networks Unit 42	Partial evidence	Santa Clara, CA, United StatesHQ checked Sep 27, 2026	5,001-10,000	441 contacts →
	Partial evidence “Palo Alto Networks Unit 42 brings together world-renowned threat researchers with an elite team of incident responders and security consultants to create an intelligence-driven…” Source: RevenueBase Database · checked Sep 27, 2026
16	Cyberproof	Strong evidence	Aliso Viejo, CA, United StatesHQ checked Sep 27, 2026	501-1,000	428 contacts →
	Strong evidence “CyberProof delivers threat-led (via Continuous Threat Exposure Management), co-managed security operations with the belief that better security is achieved through the right…” Source: RevenueBase Database · checked Sep 27, 2026
17	Secure Soft S.A.C	Indirect evidence	Santiago De Surco, PeruHQ checked Sep 27, 2026	51-200	426 contacts →
	Indirect evidence “Somos Secure Soft, el Centro de Excelencia en Ciberseguridad de la empresa Gtd, con más de 20 años de experiencia y presencia en Perú, Chile, Colombia, Ecuador y México.” Source: RevenueBase Database · checked Sep 27, 2026
18	RED Canary, A Zscaler Company	Indirect evidence	Denver, CO, United StatesHQ checked Sep 27, 2026	201-500	408 contacts →
	Indirect evidence “Red Canary stops cyber threats no one else does, so organizations can fearlessly pursue their missions.” Source: RevenueBase Database · checked Sep 27, 2026
19	Safeway	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 27, 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 27, 2026
20	Acpl Systems	Partial evidence	Gurgaon, IndiaHQ checked Sep 27, 2026	201-500	398 contacts →
	Partial evidence “ACPL Systems is a pure-play cybersecurity services company focused on helping organisations translate security investments into measurable outcomes.” Source: RevenueBase Database · checked Sep 27, 2026
21	Kudelski Security	Partial evidence	Cheseaux, United StatesHQ checked Sep 27, 2026	201-500	392 contacts →
	Partial evidence “Kudelski Security is a premier cybersecurity solutions provider, working with the most security-conscious organizations in Europe and across the United States.” Source: RevenueBase Database · checked Sep 27, 2026
22	Neverhack	Indirect evidence	Paris, FranceHQ checked Sep 27, 2026	1,001-5,000	382 contacts →
	Indirect evidence “NEVERHACK is a French group specialized in cybersecurity for over 40 years.” Source: RevenueBase Database · checked Sep 27, 2026
23	TORQ	Indirect evidence	New York, NY, United StatesHQ checked Sep 27, 2026	201-500	359 contacts →
	Indirect evidence “Torq is the AI SOC platform that combines agentic insights and automation so that enterprises can triage, investigate, and respond to actual risks, faster.” Source: RevenueBase Database · checked Sep 27, 2026
24	SK Shieldus	Indirect evidence	경기도, South KoreaHQ checked Sep 27, 2026	5,001-10,000	348 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 27, 2026
25	Truesec	Indirect evidence	SwedenHQ checked Sep 27, 2026	201-500	332 contacts →
	Indirect evidence “Prevent Breach & Minimize Impact” Source: RevenueBase Database · checked Sep 27, 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: 24/7 security operations centers. 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 24/7 security operations centers.
Partial evidence: Its own public description names part of 24/7 security operations centers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name 24/7 security operations centers. 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 3,190 24/7 security operations centers worldwide

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24/7 security operations centers worldwide at a glance

As of Sep 27, 2026

35.4%Verified-email coverage

20.4Average contacts per company

11-50Median size (employees)

1.8%Largest-city concentration · London

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

1,146

11-50

1,283

51-200

502

201-500

146

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 24/7 security operations centers, 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 24/7 security operations centers are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “24/7 security operations centers”. 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 24/7 security operations centers), 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 24/7 security operations centers, 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, 23,056 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 27, 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.

24/7 security operations centers by location

24 lists · largest first

Every 24/7 security operations centers 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 24/7 security operations centers, 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 24/7 security operations centers are there worldwide?

RevenueBase identified 3,190 24/7 security operations centers 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?

Sophos, headquartered in Abingdon, tops this list with the largest team on record.

Which country has the most 24/7 security operations centers?

The United States leads with 691 companies, followed by India (252) and the United Kingdom (174). Every 24/7 security operations centers list by country and city is linked on this page.

Which city has the most 24/7 security operations centers?

London leads with 59 headquartered companies, followed by Sao Paulo (43) and Dubai (38).

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 23,056 verified decision-maker contacts tracked across these 3,190 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 27, 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.