Lookalikes · Data refreshed October 2026

25 R-Tec IT Security Gmbh lookalikes

Compiled by the RevenueBase Data Team Data refreshed Oct 18, 2026 699 matching companies

Looking for R-Tec IT Security Gmbh lookalikes, R-Tec IT Security Gmbh competitors or R-Tec IT Security Gmbh alternatives? The RevenueBase company graph holds 699 companies that do what R-Tec IT Security Gmbh does, matched at 85%+ measured description similarity (RevenueBase, October 2026). The 25 largest are ranked below by team size; across all 699 matches RevenueBase tracks 13,052 professional contacts, including 3,875 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 R-Tec IT Security Gmbh 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

R-Tec IT Security Gmbh

“r-tec IT Security ist seit über 25 Jahren auf IT-Sicherheit spezialisiert.”

51-200Employees

83Contacts tracked

44Verified emails

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The 25 largest R-Tec IT Security Gmbh competitors and alternatives

Ranked by team size

Top 25 of 699 companies matching R-Tec IT Security Gmbh at 85%+ description similarity, ranked by team size. Similarity is each company's measured match to R-Tec IT Security Gmbh (100% = identical). Data refreshed Oct 18, 2026.
#	Company	HQ	Employees	Similarity	Verified emails
1	Secunet Security Networks AG	Essen, DE	1,001-5,000	86%	57 contacts →
2	own.security	Paris, FR	51-200	86%	23 contacts →
3	SK Shieldus	KR	5,001-10,000	85%	9 contacts →
4	Novacoast	Wichita, US	201-500	85%	202 contacts →
5	Esec Forte Technologies	Gurugram, IN	201-500	85%	210 contacts →
6	Sits Group	Wettingen, CH	501-1,000	87%	29 contacts →
7	Essen Vision Software	Mumbai, IN	201-500	86%	109 contacts →
8	Loginsoft	Chantilly, US	201-500	86%	61 contacts →
9	Fixed Solutions	EG	201-500	85%	10 contacts →
10	Infoguard AG	Baar, CH	201-500	88%	129 contacts →
11	Census	GR	51-200	85%	62 contacts →
12	Protergo	Kota Jakarta Selatan Daerah Khusus Ibukota Jakarta South Jakarta, ID	51-200	87%	99 contacts →
13	Deepseas	US	201-500	86%	129 contacts →
14	Sapphire	Newcastle Upon Tyne, GB	51-200	86%	68 contacts →
15	Firmus	Kuala Lumpur, MY	51-200	86%	47 contacts →
16	Cryptogen	LK	201-500	86%	81 contacts →
17	Security Matterz	Riyadh, SA	201-500	86%	68 contacts →
18	Netsecurity	Oslo, NO	51-200	86%	88 contacts →
19	Nuharbor	Colchester, US	51-200	85%	82 contacts →
20	Helpsystems	Eden Prairie, US	1,001-5,000	85%	25 contacts →
21	Wizlynx Group	Binningen, CH	51-200	86%	35 contacts →
22	Acer Cyber Security INC	TW	51-200	85%	29 contacts →
23	At&t Cybersecurity	Dallas, US	1,001-5,000	85%	25 contacts →
24	Tribastion Technologies	n/a	51-200	87%	62 contacts →
25	CG ONE	Sao Paulo, BR	51-200	86%	46 contacts →

Showing the 25 largest of 699 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 R-Tec IT Security Gmbh, 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 R-Tec IT Security Gmbh 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 R-Tec IT Security Gmbh lookalikes?

R-Tec IT Security Gmbh lookalikes are companies that closely resemble what R-Tec IT Security Gmbh 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 R-Tec IT Security Gmbh shown as a percentage.

What companies are similar to R-Tec IT Security Gmbh?

The largest companies similar to R-Tec IT Security Gmbh are Secunet Security Networks AG, own.security, SK Shieldus and Novacoast. The table above shows the 25 largest of the 699 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 R-Tec IT Security Gmbh'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 3,875 verified emails and direct dials tracked across all 699 matched companies.

Who are R-Tec IT Security Gmbh's biggest competitors?

The largest R-Tec IT Security Gmbh competitors by measured business-description similarity are Secunet Security Networks AG, own.security, SK Shieldus and Novacoast. Every company here does what R-Tec IT Security Gmbh does at 85%+ similarity, ranked by team size.

What are the best R-Tec IT Security Gmbh alternatives?

The closest R-Tec IT Security Gmbh alternatives are the companies whose own business descriptions match R-Tec IT Security Gmbh'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.