Lookalikes · Data refreshed October 2026

25 Citadel Cyber Security lookalikes

Compiled by the RevenueBase Data Team Data refreshed Oct 18, 2026 1065 matching companies

Looking for Citadel Cyber Security lookalikes, Citadel Cyber Security competitors or Citadel Cyber Security alternatives? The RevenueBase company graph holds 1065 companies that do what Citadel Cyber Security does, matched at 85%+ measured description similarity (RevenueBase, October 2026). The 25 largest are ranked below by team size; across all 1065 matches RevenueBase tracks 10,181 professional contacts, including 3,129 with verified work emails.

Similarity is measured on what companies actually do, from their business descriptions rather than industry codes, and is shown per row as a percentage. This page keeps only companies at 85%+ measured similarity to Citadel Cyber Security and ranks them by company size. Data current as of October 18, 2026.

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 Similarity shown on every row Refreshed Oct 18, 2026 Match quality audited by blind human judging

Reference company

Citadel Cyber Security

“Citadel is an Information Security Consulting company.”

51-200Employees

154Contacts tracked

43Verified emails

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The 25 largest Citadel Cyber Security competitors and alternatives

Ranked by team size

Top 25 of 1065 companies matching Citadel Cyber Security at 85%+ description similarity, ranked by team size. Similarity is each company's measured match to Citadel Cyber Security (100% = identical). Data refreshed Oct 18, 2026.
#	Company	HQ	Employees	Similarity	Verified emails
1	Esec Forte Technologies	Gurugram, IN	201-500	87%	210 contacts →
2	Cyraacs	Bengaluru, IN	51-200	87%	55 contacts →
3	Matrix 2bsecure	Tel Aviv, IL	51-200	89%	90 contacts →
4	Ampcus Cyber	Chantilly, US	1,001-5,000	86%	75 contacts →
5	Valuementor	Houston, US	51-200	86%	69 contacts →
6	Mindpoint Group, A Quantum SKY Company	Reston, US	1,001-5,000	91%	7 contacts →
7	Comsec	Tel-Aviv, IL	51-200	85%	17 contacts →
8	Strategic Security	Alexandria, US	n/a	89%	1 contacts →
9	Under Protection	Pinhais Alphaville, BR	51-200	86%	52 contacts →
10	Securium Solutions Private Limited	Noida, IN	11-50	85%	6 contacts →
11	SBS Cybersecurity	Madison, US	51-200	86%	66 contacts →
12	RED Rock IT Security INC	Makati City, PH	51-200	86%	2 contacts →
13	Layer8	Lisbon, PT	51-200	86%	73 contacts →
14	Trustedsec	Fairlawn, US	51-200	86%	72 contacts →
15	Edgile	Austin, US	51-200	85%	39 contacts →
16	Encureit Systems Private Limited	Pune, IN	51-200	88%	10 contacts →
17	Directdefense	Denver, US	51-200	87%	74 contacts →
18	Bastion Security Group	Wellington, NZ	51-200	87%	62 contacts →
19	SEC Consult Group	Vienna, AT	201-500	86%	39 contacts →
20	Infoziant	Chennai, IN	51-200	87%	5 contacts →
21	Crossbow Cybersecurity	Bengaluru, IN	51-200	88%	3 contacts →
22	Redguard	Bern, CH	51-200	86%	47 contacts →
23	Infinitumit	Istanbul, TR	11-50	85%	17 contacts →
24	Senselearner Technologies Pvt. LTD	Dehradun, IN	51-200	85%	3 contacts →
25	Spark Professional Services	Cairo, EG	11-50	86%	26 contacts →

Showing the 25 largest of 1065 similar companies

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How similarity works

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.
Matching: Companies are matched on what they actually do, as described in their own business descriptions, never on shared industry codes. The list keeps only matches at 85%+ measured similarity to Citadel Cyber Security, and match quality is audited by blind human judging. Read the full methodology.
Ranking: Team size, largest first, among the matched companies: companies are ordered by the number of professionals RevenueBase tracks at each one. Each row also shows its measured similarity to Citadel Cyber Security as a percentage.
Verification: Contact records re-verify on a rolling cadence rather than being scraped once and left to decay; each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on October 18, 2026. Lists refresh periodically as the graph is re-checked.

Frequently asked

What are Citadel Cyber Security lookalikes?

Citadel Cyber Security lookalikes are companies that closely resemble what Citadel Cyber Security does and sells, based on each company's own business description. The table above ranks the closest matches by company size, with each company's similarity to Citadel Cyber Security shown as a percentage.

What companies are similar to Citadel Cyber Security?

The largest companies similar to Citadel Cyber Security are Esec Forte Technologies, Cyraacs, Matrix 2bsecure and Ampcus Cyber. The table above shows the 25 largest of the 1065 matched companies, with each row's similarity shown as a percentage.

How is similarity measured?

Similarity scores how closely a company's business, as described in its own words, matches Citadel Cyber Security's, shown as a percentage (100% = an identical description). The list keeps companies at 85% or above and ranks them by team size.

How do I get contacts at these companies?

A free RevenueBase account lets you run this exact search and work the top matches, verified emails and direct dials included. Upgrading unlocks the 3,129 verified emails and direct dials tracked across all 1065 matched companies.

Who are Citadel Cyber Security's biggest competitors?

The largest Citadel Cyber Security competitors by measured business-description similarity are Esec Forte Technologies, Cyraacs, Matrix 2bsecure and Ampcus Cyber. Every company here does what Citadel Cyber Security does at 85%+ similarity, ranked by team size.

What are the best Citadel Cyber Security alternatives?

The closest Citadel Cyber Security alternatives are the companies whose own business descriptions match Citadel Cyber Security's most closely, shown above with each one's similarity as a percentage and ranked by team size.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 18, 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.