Company lists · Data refreshed September 2026

Top 25 Secure software development companies based in Germany

Name: Secure software development companies based in Germany
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 6, 2026 737 companies tracked

RevenueBase identified 737 secure software development companies headquartered in Germany as of September 2026 and tracks 7,536 professional contacts across them, including 3,133 with verified work emails and 105 with mobile numbers. Berlin is the largest hub.

This list covers secure software development companies headquartered in Germany, 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, how directly it supports the match, and when it was last checked. Data refreshed September 6, 2026.

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 HQ checked on every row Match evidence on every row Refreshed Sep 6, 2026 86% judged on-target in blind review

737Companies

7,536Contacts tracked

3,133Verified emails

105Mobile numbers

Explore all 737 companies → Free signup · no credit card · 500 free credits

The 25 largest secure software development companies based in Germany

Ranked by team size

Top 25 of 737 secure software development companies based in Germany, ranked by team size, largest first. Data refreshed Sep 6, 2026. Evidence rates how directly each company's own description names secure software development companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Secunet Security Networks AGPartial evidence	Essen, GermanyHQ checked Sep 6, 2026	1,001-5,000	623
	“secunet – We are the Guardians of Europe's Digital Freedom.” Source: company website · checked Sep 6, 2026
2	Codecentric AGPartial evidence	Solingen, GermanyHQ checked Sep 6, 2026	501-1,000	490
	“Seit zwei Dekaden entwickelt die codecentric AG moderne, individuelle Software.” Source: company website · checked Sep 6, 2026
3	G Data CyberdefenseIndirect evidence	Bochum, GermanyHQ checked Sep 6, 2026	501-1,000	386
	“Progress is our motivation because we are convinced that it will lead us to a successful future – independent of industries, companies and social classes.” Source: company website · checked Sep 6, 2026
4	T Security - DachIndirect evidence	Bonn, GermanyHQ checked Sep 6, 2026	1,001-5,000	363
	“Wir glauben an eine sichere digitale Zukunft mit minimalen Risiken und maximalen Chancen.” Source: company website · checked Sep 6, 2026
5	ESE Engineering UND Software-Entwicklung GmbhIndirect evidence	Braunschweig, GermanyHQ checked Sep 6, 2026	201-500	154
	“Als führender Know-how Partner entwickeln wir mit vertrauenswürdigen Technologien die Erfolgsgeschichten der Zukunft.” Source: company website · checked Sep 6, 2026
6	Comforte AGPartial evidence	Wiesbaden, GermanyHQ checked Sep 6, 2026	51-200	141
	“At comforte AG, we help our customers achieve the highest standards of data security and privacy.” Source: company website · checked Sep 6, 2026
7	AdorsysIndirect evidence	Nuremberg, GermanyHQ checked Sep 6, 2026	51-200	137
	“We are a technology company!” Source: company website · checked Sep 6, 2026
8	USD AGIndirect evidence	Neu-isenburg, GermanyHQ checked Sep 6, 2026	51-200	130
	“Die usd AG schützt Unternehmen vor Hackern und Kriminellen.” Source: company website · checked Sep 6, 2026
9	Fraunhofer Institute For Secure Information Technology SITPartial evidence	Darmstadt, GermanyHQ checked Sep 6, 2026	201-500	129
	“The Fraunhofer Institute for Secure Information Technology SIT is the leading expert for IT Security and develops solutions for immediate use, tailored to the customer's needs.” Source: company website · checked Sep 6, 2026
10	Consist Software Solutions GmbhStrong evidence	Kiel, GermanyHQ checked Sep 6, 2026	201-500	108
	“Our profile Consist Software Solutions is a specialist in Digital Transformation, IT Security, and Managed Services.” Source: company website · checked Sep 6, 2026
11	HWS GruppeIndirect evidence	Neustadt An Der Aisch, GermanyHQ checked Sep 6, 2026	51-200	90
	“Seit über 20 Jahren sind wir ein verlässlicher Partner für anspruchsvolle IT-Projekte.” Source: company website · checked Sep 6, 2026
12	Axilaris GmbhIndirect evidence	Chemnitz, GermanyHQ checked Sep 6, 2026	51-200	81
	“Die axilaris GmbH ist ein Premium-IT-Dienstleister für die Sparkassen-Finanzgruppe, den Mittelstand und Kommunen.” Source: company website · checked Sep 6, 2026
13	R-Tec IT Security GmbhPartial evidence	Wuppertal, GermanyHQ checked Sep 6, 2026	51-200	79
	“r-tec IT Security ist seit über 25 Jahren auf IT-Sicherheit spezialisiert.” Source: company website · checked Sep 6, 2026
14	ISD FeniqsIndirect evidence	Ludwigshafen Am Rhein, GermanyHQ checked Sep 6, 2026	51-200	73
	“For over 30 years, we’ve been on a mission to create and deliver scalable IT products and services that help organizations achieve continuous excellence.” Source: company website · checked Sep 6, 2026
15	Ditis SystemePartial evidence	Ulm, GermanyHQ checked Sep 6, 2026	51-200	69
	“ditis - The Security Company!” Source: company website · checked Sep 6, 2026
16	SRC Security Research And Consulting GmbhPartial evidence	Bonn, GermanyHQ checked Sep 6, 2026	51-200	67
	“SRC Security Research & Consulting is committed to providing service in the areas of information technology and information security.” Source: company website · checked Sep 6, 2026
17	Silpion It-Solutions GmbhIndirect evidence	Hamburg, GermanyHQ checked Sep 6, 2026	51-200	64
	“Die Silpion IT-Solutions GmbH ist ein expandierendes, ausschließlich aus Projekteinnahmen finanziertes IT-Unternehmen.” Source: company website · checked Sep 6, 2026
18	Mispa Technologies GmbhPartial evidence	Langenfeld (rheinland), GermanyHQ checked Sep 6, 2026	51-200	63
	“We, mispa Technologies GmbH, a leading IT security and service provider, deliver consulting, design and managed services to help our customers get the most out of their IT…” Source: company website · checked Sep 6, 2026
19	Achelos GmbhPartial evidence	Paderborn, GermanyHQ checked Sep 6, 2026	51-200	60
	“achelos GmbH is a cybersecurity company with a focus on highly secure digital infrastructures, products and identities.” Source: company website · checked Sep 6, 2026
20	EdataconsultingIndirect evidence	Heidelberg, GermanyHQ checked Sep 6, 2026	51-200	57
	“Welcome to edataconsulting!” Source: company website · checked Sep 6, 2026
21	Water IT Security & DefensePartial evidence	Düsseldorf, GermanyHQ checked Sep 6, 2026	51-200	54
	“water is a cybersecurity company that provides holistic IT security solutions to keep your business safe.” Source: company website · checked Sep 6, 2026
22	Connect Systemhaus AGIndirect evidence	Siegen, GermanyHQ checked Sep 6, 2026	51-200	52
	“Die connecT SYSTEMHAUS AG ist ein inhabergeführtes IT-Unternehmen, das sich auf strategisches IT-Management spezialisiert hat.” Source: company website · checked Sep 6, 2026
23	ConcentradeIndirect evidence	Dortmund, GermanyHQ checked Sep 6, 2026	51-200	52
	“Just stronger Cybersecurity - Bestmöglichen Schutz vor Cyberangriffen aufzubauen und auf hohem Niveau zu halten, ist Kernkompetenz der concentrade.” Source: company website · checked Sep 6, 2026
24	Prosec GmbhIndirect evidence	Mendig, GermanyHQ checked Sep 6, 2026	51-200	49
	“ProSec GmbH verwandelt Unternehmen in digitale Festungen.” Source: company website · checked Sep 6, 2026
25	Hvs-ConsultingPartial evidence	Garching, GermanyHQ checked Sep 6, 2026	51-200	46
	“HvS-Consulting AG is consulting large and medium-sized companies on the topic of cyber security since 2002.” Source: company website · checked Sep 6, 2026

Showing 25 of 737 secure software development companies based in Germany

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Secure software development companies based in Germany at a glance

As of Sep 6, 2026

1-10Median size (employees)

BerlinLargest hub · 70 HQs

105Contacts with mobile numbers

Sep 6, 2026Data refreshed

Companies by employee count

1-10

418

11-50

245

51-200

201-500

501-1,000

1,001-5,000

Verified emails by last verification

0–30

2,918

31–60

198

61–90

90–180

180+

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 secure software development companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Germany whose own description of what they do matches “secure software development companies”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among secure software development companies, and records with no verified work email. Companies headquartered outside Germany are excluded even when they keep an office there.
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 an evidence 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, 3,133 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 6, 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.

Secure software development companies by metro

Frequently asked

How many secure software development companies are there based in Germany?

RevenueBase identified 737 secure software development companies headquartered in Germany 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?

Secunet Security Networks AG, headquartered in Essen, tops this list with the largest team on record.

Which city has the most secure software development companies?

Berlin leads with 70 headquartered companies, followed by Munich (33) and Hamburg (26).

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 3,133 verified decision-maker contacts tracked across these 737 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 6, 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.