Company lists · Data refreshed September 2026

Top 25 Phoenix cybersecurity companies worldwide

RevenueBase identified 3,768 phoenix cybersecurity companies worldwide as of September 2026 and tracks 53,124 professional contacts across them, including 16,596 with verified work emails. The United States is the largest market and London the largest hub.

This list covers phoenix 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 29, 2026. Country and city lists for phoenix 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 29, 2026 86% judged on-target in blind review
3,768Companies
53,124Contacts tracked
16,596Verified emails
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The 25 largest phoenix cybersecurity companies worldwide

Ranked by team size
Top 25 of 3,768 phoenix cybersecurity companies worldwide, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to phoenix 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceAbingdon, United KingdomHQ checked Sep 29, 20265,001-10,0004,925 contacts →

Partial evidence

“Sophos is a cybersecurity leader defending organizations globally with an AI-driven platform and expert-led services.”

Source: RevenueBase Database · checked Sep 29, 2026
2Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 29, 2026n/a3,649 contacts →

Indirect evidence

“We are a crowdsourced security company that safeguards organizations' assets from sophisticated threat actors before they can strike-by uniting our customers with trusted hackers…”

Source: RevenueBase Database · checked Sep 29, 2026
3Partial evidenceReston, VA, United StatesHQ checked Sep 29, 20261,001-5,0001,232 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 29, 2026
4Partial evidenceSingaporeHQ checked Sep 29, 2026501-1,000888 contacts →

Partial evidence

“Ensign InfoSecurity is the largest pure-play end-to-end cybersecurity service provider in Asia.”

Source: RevenueBase Database · checked Sep 29, 2026
5Partial evidenceChicago, IL, United StatesHQ checked Sep 29, 2026501-1,000874 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 29, 2026
6Partial evidenceBengaluru, IndiaHQ checked Sep 29, 2026201-500743 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 29, 2026
7Partial evidenceParis, ItalyHQ checked Sep 29, 2026501-1,000586 contacts →

Partial evidence

“Advens is a European, independent and outstanding leader in cybersecurity.”

Source: RevenueBase Database · checked Sep 29, 2026
8Partial evidenceSingaporeHQ checked Sep 29, 2026501-1,000528 contacts →

Partial 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 29, 2026
9Indirect evidenceDubai, United Arab EmiratesHQ checked Sep 29, 2026201-500525 contacts →

Indirect evidence

“Protection is Paramount!”

Source: RevenueBase Database · checked Sep 29, 2026
10Indirect evidenceMclean, VA, United StatesHQ checked Sep 29, 2026501-1,000523 contacts →

Indirect 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 29, 2026
11Partial evidenceParis, FranceHQ checked Sep 29, 202651-200506 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 29, 2026
12Partial evidenceLondon, United KingdomHQ checked Sep 29, 2026501-1,000502 contacts →

Partial evidence

“SecurityHQ, a global cybersecurity company pioneering Security Performance Engineering for stronger operational performance and resilience.”

Source: RevenueBase Database · checked Sep 29, 2026
13Partial evidenceGurgaon, IndiaHQ checked Sep 29, 2026201-500398 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 29, 2026
14Indirect evidenceBonn, GermanyHQ checked Sep 29, 20261,001-5,000363 contacts →

Indirect evidence

“Wir glauben an eine sichere digitale Zukunft mit minimalen Risiken und maximalen Chancen.”

Source: RevenueBase Database · checked Sep 29, 2026
15Indirect evidence경기도, South KoreaHQ checked Sep 29, 20265,001-10,000348 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026
16Indirect evidenceSwedenHQ checked Sep 29, 2026201-500332 contacts →

Indirect evidence

“Prevent Breach & Minimize Impact”

Source: RevenueBase Database · checked Sep 29, 2026
17Indirect evidenceBrussels, BelgiumHQ checked Sep 29, 2026201-500315 contacts →

Indirect evidence

“NVISO is a cyber security services firm composed of outstanding security professionals - each has a specific field of expertise, ranging from security research and risk management…”

Source: RevenueBase Database · checked Sep 29, 2026
18Partial evidenceBangalore, IndiaHQ checked Sep 29, 2026201-500270 contacts →

Partial evidence

“SecurEyes is a global cybersecurity specialist firm offering advisory plus consulting services and reg-tech products solving for cybersecurity challenges so that business leaders…”

Source: RevenueBase Database · checked Sep 29, 2026
19Indirect evidenceScottsdale, AZ, United StatesHQ checked Sep 29, 202651-200249 contacts →

Indirect evidence

“Lumifi Cyber helps organizations illuminate their cyber defense with continuous protection across the full security lifecycle.”

Source: RevenueBase Database · checked Sep 29, 2026
20Indirect evidenceLondon, United KingdomHQ checked Sep 29, 2026201-500242 contacts →

Indirect evidence

“Obrela Security Industries is a global provider of cyber security services.”

Source: RevenueBase Database · checked Sep 29, 2026
21Partial evidenceToronto, ON, CanadaHQ checked Sep 29, 202651-200239 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 29, 2026
22Indirect evidenceRijswijk, NetherlandsHQ checked Sep 29, 2026201-500233 contacts →

Indirect 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 29, 2026
23Partial evidenceChantilly, VA, United StatesHQ checked Sep 29, 2026201-500220 contacts →

Partial evidence

“For over 20 years, leading companies in Telecom, Cybersecurity, Healthcare, Banking, New Media, and more have come to rely on Loginsoft as a trusted resource for technology talent.”

Source: RevenueBase Database · checked Sep 29, 2026
24Indirect evidenceSan Mateo, CA, United StatesHQ checked Sep 29, 2026201-500219 contacts →

Indirect evidence

“Arkose Labs helps the biggest enterprises in the world-including top banks, tech giants, social media platforms, airlines, etc-protect their users, revenue and reputation from…”

Source: RevenueBase Database · checked Sep 29, 2026
25Partial evidenceBogotá, ColombiaHQ checked Sep 29, 2026201-500210 contacts →

Partial evidence

“Netdata is a leading global cybersecurity services partner with more than 200 certified engineers and over 1,500 certifications, widely recognized as a partner of Palo Alto…”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 3,768 phoenix cybersecurity companies worldwide

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Phoenix cybersecurity companies worldwide at a glance

As of Sep 29, 2026
31.2%Verified-email coverage
14.1Average contacts per company
1-10Median size (employees)
2.2%Largest-city concentration · London
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
1,982
11-50
1,366
51-200
316
201-500
68
501-1,000
16
1,001-5,000
12
5,001-10,000
4
10001+
3

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 phoenix 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
Every country. Country and city lists for phoenix cybersecurity companies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “phoenix 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 phoenix 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 phoenix 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, 16,596 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 29, 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.

Phoenix cybersecurity companies by location

27 lists · largest first

Every Phoenix cybersecurity companies 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 phoenix 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 phoenix cybersecurity companies are there worldwide?

RevenueBase identified 3,768 phoenix 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?

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

Which country has the most phoenix cybersecurity companies?

The United States leads with 992 companies, followed by India (395) and the United Kingdom (191). Every phoenix cybersecurity companies list by country and city is linked on this page.

Which city has the most phoenix cybersecurity companies?

London leads with 82 headquartered companies, followed by Dubai (51) and Hyderabad (36).

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 16,596 verified decision-maker contacts tracked across these 3,768 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 29, 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.