Company lists · Data refreshed November 2026

Top 25 Data security consulting companies worldwide

Name: Data security consulting companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 5, 2026 18,949 companies tracked

RevenueBase identified 18,949 company matches for data security consulting companies worldwide as of November 2026 and tracks 216,574 professional contacts across them, including 51,172 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for data security consulting 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 November 5, 2026. Country and city lists for data security consulting 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 Nov 5, 2026 How this list was built

18,949Companies

216,574Contacts tracked

51,172Verified emails

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The 25 largest data security consulting companies worldwide

Ranked by team size

Top 25 of 18,949 company matches for data security consulting companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Private Sector	Exact match	United StatesHQ recorded Nov 5, 2026	n/a	13,149 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2	Securitas Seguridad España	Exact match	Madrid, SpainHQ recorded Nov 5, 2026	10001+	3,955 contacts →
	Exact match “Securitas, Soluciones de Seguridad a medida Nuestro liderazgo en conocimientos de seguridad nos ha permitido desarrollar una estrategia basada en tres pilares fundamentales…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3	OPTIV	Exact match	Leawood, KS, United StatesHQ recorded Nov 5, 2026	1,001-5,000	2,171 contacts →
	Exact match “Optiv is the cyber advisory and solutions leader, delivering strategic and technical expertise to nearly companies across every major industry.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4	Site سايت	Exact match	Al Nakheel, Saudi ArabiaHQ recorded Nov 5, 2026	501-1,000	1,514 contacts →
	Exact match “We are established for enriching local content in designing, developing, and operating secure digital computing environments through Saudi talents, by fulfilling our role as a…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5	Guidepoint Security	Exact match	Reston, VA, United StatesHQ recorded Nov 5, 2026	1,001-5,000	1,346 contacts →
	Exact match “GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6	Coalfire	Exact match	Chicago, GA, United StatesHQ recorded Nov 5, 2026	1,001-5,000	977 contacts →
	Exact match “Coalfire is the premier Cybersecurity and Compliance Services leader for the tech, healthcare, and finance industries.(This page is maintained by Marketing.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7	Cyderes	Exact match	Kansas City, MO, United StatesHQ recorded Nov 5, 2026	1,001-5,000	909 contacts →
	Exact match “Cyderes is a global managed cybersecurity services partner dedicated to defending against today’s relentless threatscape.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8	COBRA	Exact match	London, United KingdomHQ recorded Nov 5, 2026	n/a	782 contacts →
	Exact match “Get a free, powerful security assessment with personalised recommendations, the same analysis that costs from IT Consultancies.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9	SISA	Exact match	Bangalore, IndiaHQ recorded Nov 5, 2026	1,001-5,000	755 contacts →
	Exact match “SISA is a global forensics-driven cybersecurity solutions company, trusted by leading organizations for securing their businesses with robust preventive, detective, and corrective…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10	I-Tracing	Exact match	Courbevoie, FranceHQ recorded Nov 5, 2026	1,001-5,000	687 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11	Vikingcloud	Exact match	Chicago, IL, United StatesHQ recorded Nov 5, 2026	1,001-5,000	665 contacts →
	Exact match “VikingCloud delivers cybersecurity and compliance solutions that simply work.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12	Network Intelligence	Exact match	Plano, TX, United StatesHQ recorded Nov 5, 2026	501-1,000	658 contacts →
	Exact match “At Network Intelligence, we combine our team of 500+ security professionals with Transilience – our cutting-edge AI platform.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13	own.security	Exact match	Paris, FranceHQ recorded Nov 5, 2026	51-200	558 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14	Paramount Computer Systems	Exact match	Dubai, United Arab EmiratesHQ recorded Nov 5, 2026	201-500	553 contacts →
	Exact match “Protection is Paramount!” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15	Seclore	Exact match	Santa Clara, CA, United StatesHQ recorded Nov 5, 2026	201-500	528 contacts →
	Exact match “Seclore is the Data Security Intelligence company for the era of enterprise AI, helping organizations turn data and AI risk into readiness.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16	Securityhq	Exact match	London, United KingdomHQ recorded Nov 5, 2026	501-1,000	516 contacts →
	Exact match “SecurityHQ, a global cybersecurity company pioneering Security Performance Engineering for stronger operational performance and resilience.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17	Aujas Cybersecurity	Exact match	Cupertino, United StatesHQ recorded Nov 5, 2026	1,001-5,000	514 contacts →
	Exact match “At Aujas Cybersecurity, we specialize in building and transforming cybersecurity postures to help businesses effectively mitigate risks.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18	MNEMO	Exact match	Madrid, SpainHQ recorded Nov 5, 2026	501-1,000	473 contacts →
	Exact match “MNEMO: We are #DigitalChallengers.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19	Secure Soft S.A.C	Exact match	Santiago De Surco, PeruHQ recorded Nov 5, 2026	51-200	451 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20	Resillion	Exact match	London, United KingdomHQ recorded Nov 5, 2026	501-1,000	426 contacts →
	Exact match “At Resillion, we're more than just a global leader in quality engineering, testing, and cyber security – we're your dedicated partner from the start of your project to its…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21	PT Itsec Asia TBK	Exact match	Jakarta, IndonesiaHQ recorded Nov 5, 2026	201-500	423 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 · Nov 5, 2026 · View company records in RevenueBase
22	Acpl Systems	Exact match	Gurgaon, IndiaHQ recorded Nov 5, 2026	201-500	413 contacts →
	Exact match “ACPL Systems is a pure-play cybersecurity services company focused on helping organisations translate security investments into measurable outcomes.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23	SK Shieldus	Exact match	경기도, South KoreaHQ recorded Nov 5, 2026	5,001-10,000	411 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24	Neverhack	Exact match	Paris, FranceHQ recorded Nov 5, 2026	1,001-5,000	400 contacts →
	Exact match “NEVERHACK is a French group specialized in cybersecurity for over 40 years.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25	Kudelski Security	Exact match	Cheseaux, TX, United StatesHQ recorded Nov 5, 2026	201-500	392 contacts →
	Exact match “Kudelski Security is a premier cybersecurity solutions provider, working with the most security-conscious organizations in Europe and across the United States.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “data security consulting companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 18,949 data security consulting companies worldwide

See the full list, filter by size, metro and specialty, and access 51,172 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Data security consulting companies worldwide at a glance

As of Nov 5, 2026

23.6%Verified-email coverage

11.4Average contacts per company

1-10Median size (employees)

2.2%Largest-city concentration · London

Nov 5, 2026Page data refreshed

Companies by employee count

1-10

11,920

11-50

5,390

51-200

1,198

201-500

242

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

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 data security consulting companies are linked below.
What qualifies: Company records worldwide whose business descriptions match “data security consulting 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 51,172 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 November 5, 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.

Data security consulting companies by location

138 lists · largest first

Every Data security consulting 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 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 “data security consulting companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many data security consulting companies are there worldwide?

RevenueBase identified 18,949 company matches for data security consulting companies worldwide as of November 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?

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

Which country has the most data security consulting companies?

The United States leads with 4,250 companies, followed by India (1,247) and the United Kingdom (1,099). Every data security consulting companies list by country and city is linked on this page.

Which city has the most data security consulting companies?

London leads with 421 company records, followed by Sao Paulo (254) and Paris (194).

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 51,172 professional contacts with verified work emails tracked across these 18,949 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 November 5, 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.