Company lists · Data refreshed September 2026

Top 25 Security strategy consulting firms worldwide

RevenueBase identified 16,553 security strategy consulting firms worldwide as of September 2026 and tracks 172,236 professional contacts across them, including 37,407 with verified work emails. The United States is the largest market and London the largest hub.

This list covers security strategy consulting firms 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 security strategy consulting firms 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
16,553Companies
172,236Contacts tracked
37,407Verified emails
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The 25 largest security strategy consulting firms worldwide

Ranked by team size
Top 25 of 16,553 security strategy consulting firms worldwide, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to security strategy consulting firms: 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
1Indirect evidenceUnited StatesHQ checked Sep 29, 2026n/a12,771 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026
2Partial evidenceMadrid, SpainHQ checked Sep 29, 202610001+3,620 contacts →

Partial evidence

“Securitas, Soluciones de Seguridad a medida Nuestro liderazgo en conocimientos de seguridad nos ha permitido desarrollar una estrategia basada en tres pilares fundamentales…”

Source: RevenueBase Database · checked Sep 29, 2026
3Partial evidenceCulver City, CA, United StatesHQ checked Sep 29, 20265,001-10,0002,500 contacts →

Partial evidence

“The industry leader in security, Security Industry Specialists offers unique solutions to Fortune 500 companies, international events, and celebrity clients.”

Source: RevenueBase Database · checked Sep 29, 2026
4Partial evidenceLeawood, KS, United StatesHQ checked Sep 29, 20261,001-5,0002,222 contacts →

Partial evidence

“Optiv is the cyber advisory and solutions leader, delivering strategic and technical expertise to nearly companies across every major industry.”

Source: RevenueBase Database · checked Sep 29, 2026
5Partial evidenceAnnapolis, MD, United StatesHQ checked Sep 29, 20261,001-5,0002,025 contacts →

Partial evidence

“Crisis24, a GardaWorld company, is widely regarded as the leading integrated risk management, crisis response, consulting, and global protective solutions firm, serving the…”

Source: RevenueBase Database · checked Sep 29, 2026
6Indirect evidenceAl Nakheel, Saudi ArabiaHQ checked Sep 29, 2026501-1,0001,378 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Sep 29, 2026
7Partial evidenceDubai, United Arab EmiratesHQ checked Sep 29, 20265,001-10,0001,374 contacts →

Partial evidence

“First Security Group LLC was founded in 2004 with the vision of His Highness, the Vice President, Prime Minister, and Ruler of Dubai, Sheikh Mohamed bin Rashid Al Maktoum.”

Source: RevenueBase Database · checked Sep 29, 2026
8Partial 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
9Strong evidenceBurbank, CA, United StatesHQ checked Sep 29, 202610001+1,081 contacts →

Strong evidence

“Twenty-five years ago Andrews International (AI) began forming a network of the world’s foremost security authorities and connecting with strategic partners for operations…”

Source: RevenueBase Database · checked Sep 29, 2026
10Partial evidencePearl River, NY, United StatesHQ checked Sep 29, 20265,001-10,0001,050 contacts →

Partial evidence

“Brosnan Risk Consultants, Ltd.(BRC) is a security risk management firm focusing on physical security, emergency security, disaster preparedness and recovery and management…”

Source: RevenueBase Database · checked Sep 29, 2026
11Partial evidenceUnited StatesHQ checked Sep 29, 20261,001-5,000781 contacts →

Partial evidence

“AEGIS is a London based, privately owned, British security and risk management company with overseas offices in Afghanistan, Bahrain, Iraq and the USA.”

Source: RevenueBase Database · checked Sep 29, 2026
12Partial evidenceBeijing, ChinaHQ checked Sep 29, 2026n/a771 contacts →

Partial evidence

“Since 2006, PSU has been the leading Scandinavian risk and security consultancy in China.”

Source: RevenueBase Database · checked Sep 29, 2026
13Partial evidenceLondon, United KingdomHQ checked Sep 29, 20261,001-5,000597 contacts →

Partial evidence

“Part of ICTS Europe Group, ICTS UK & Ireland is a professional services firm which has been specialised in security risk for the past 39+ years.”

Source: RevenueBase Database · checked Sep 29, 2026
14Indirect evidenceNew York, NY, United StatesHQ checked Sep 29, 202610001+571 contacts →

Indirect evidence

“Allied Universal Enhanced Protection Services delivers unrivaled threat mitigation expertise for government and business entities worldwide.”

Source: RevenueBase Database · checked Sep 29, 2026
15Partial evidenceWayne, PA, United StatesHQ checked Sep 29, 20261,001-5,000557 contacts →

Partial evidence

“For more than 25 years, SolomonEdwards has empowered organizations to tackle common and complex business challenges through strategic advisory, technical advocacy, and hands-on…”

Source: RevenueBase Database · checked Sep 29, 2026
16Partial evidenceMiami, FL, United StatesHQ checked Sep 29, 20261,001-5,000553 contacts →

Partial evidence

“Security Alliance is a highly experienced provider of security solutions for private and business environments.”

Source: RevenueBase Database · checked Sep 29, 2026
17Indirect evidenceLissieu, FranceHQ checked Sep 29, 20261,001-5,000538 contacts →

Indirect evidence

“Byblos Group est un groupe indépendant spécialisé dans la protection des personnes, des biens et des données, avec une approche sur mesure, fondée sur l’excellence opérationnelle…”

Source: RevenueBase Database · checked Sep 29, 2026
18Partial evidenceMclean, VA, United StatesHQ checked Sep 29, 2026501-1,000523 contacts →

Partial 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
19Indirect evidenceParis, FranceHQ checked Sep 29, 202651-200506 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 29, 2026
20Partial 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
21Indirect evidenceCupertino, CA, United StatesHQ checked Sep 29, 20261,001-5,000473 contacts →

Indirect evidence

“At Aujas Cybersecurity, we specialize in building and transforming cybersecurity postures to help businesses effectively mitigate risks.”

Source: RevenueBase Database · checked Sep 29, 2026
22Partial evidenceSan Antonio, TX, United StatesHQ checked Sep 29, 2026501-1,000460 contacts →

Partial evidence

“For more than 45 years, GDBA has developed pioneering strategies and resources for protecting public figures, government agencies, enterprises, and others facing substantial…”

Source: RevenueBase Database · checked Sep 29, 2026
23Indirect evidenceMclean, VA, United StatesHQ checked Sep 29, 20261,001-5,000447 contacts →

Indirect evidence

“At Xcelerate, safeguarding the nation isn’t just a mission-it’s our obsession.”

Source: RevenueBase Database · checked Sep 29, 2026
24Partial evidenceRed Bank, NJ, United StatesHQ checked Sep 29, 20261,001-5,000416 contacts →

Partial evidence

“United Security Inc.(USI) provides personalized security solutions enhanced by advanced technology and cyber services.”

Source: RevenueBase Database · checked Sep 29, 2026
25Indirect evidenceSao Paulo, BrazilHQ checked Sep 29, 2026201-500399 contacts →

Indirect evidence

“A SAFEWAY empresa que integra a plataforma de cibersegurança do Grupo Stefanini se une a Protega.”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 16,553 security strategy consulting firms worldwide

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Security strategy consulting firms worldwide at a glance

As of Sep 29, 2026
21.7%Verified-email coverage
10.4Average contacts per company
1-10Median size (employees)
2.9%Largest-city concentration · London
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
10,307
11-50
4,460
51-200
1,186
201-500
328
501-1,000
111
1,001-5,000
104
5,001-10,000
20
10001+
14

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 security strategy consulting firms, 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 security strategy consulting firms are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “security strategy consulting firms”. 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 security strategy consulting firms), 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 security strategy consulting firms, 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, 37,407 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.

Security strategy consulting firms by location

107 lists · largest first

Every Security strategy consulting firms 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 security strategy consulting firms, 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 security strategy consulting firms are there worldwide?

RevenueBase identified 16,553 security strategy consulting firms 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?

Private Sector, headquartered in Worldwide, tops this list with the largest team on record.

Which country has the most security strategy consulting firms?

The United States leads with 4,699 companies, followed by the United Kingdom (1,144) and India (679). Every security strategy consulting firms list by country and city is linked on this page.

Which city has the most security strategy consulting firms?

London leads with 479 headquartered companies, followed by Paris (205) and Sao Paulo (165).

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 37,407 verified decision-maker contacts tracked across these 16,553 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.