Company lists · Data refreshed September 2026

Top 25 Legacy app modernization companies based in Germany

Name: Legacy app modernization companies based in Germany
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 112 companies tracked

RevenueBase identified 112 legacy app modernization companies headquartered in Germany as of September 2026 and tracks 6,411 professional contacts across them, including 1,592 with verified work emails. Berlin is the largest hub.

This list covers legacy app modernization 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 20, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 20, 2026 86% judged on-target in blind review

112Companies

6,411Contacts tracked

1,592Verified emails

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The 25 largest legacy app modernization companies based in Germany

Ranked by team size

Top 25 of 112 legacy app modernization companies based in Germany, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to legacy app modernization companies: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Software AG	Indirect evidence	Darmstadt, GermanyHQ checked Sep 20, 2026	n/a	4,127 contacts →
	Indirect evidence “Software AG has been helping enterprises run and evolve their core business applications for over 50 years.” Source: RevenueBase Database · checked Sep 20, 2026
2	Avision Gmbh	Indirect evidence	Oberhaching, GermanyHQ checked Sep 20, 2026	51-200	69 contacts →
	Indirect evidence “Die Avision GmbH ist ein auf Software Revival spezialisierter IT-Dienstleister für Anwendungsentwicklung und -betreuung.” Source: RevenueBase Database · checked Sep 20, 2026
3	PKS Software Gmbh	Indirect evidence	Ravensburg, GermanyHQ checked Sep 20, 2026	51-200	58 contacts →
	Indirect evidence “Wir sind ein eingespieltes Team aus über 65 Transformationsexperten.” Source: RevenueBase Database · checked Sep 20, 2026
4	Coduct Solutions Gmbh	Indirect evidence	Kamp-lintfort, GermanyHQ checked Sep 20, 2026	51-200	38 contacts →
	Indirect evidence “Coduct Solutions GmbH is an innovative technology consulting and development company specializing in custom software solutions, cloud services, and the digital transformation of…” Source: RevenueBase Database · checked Sep 20, 2026
5	Fecher	Indirect evidence	Rödermark, GermanyHQ checked Sep 20, 2026	51-200	35 contacts →
	Indirect evidence “For 30 years we have been helping our clients modernize their software, create new solutions, or master new technologies.” Source: RevenueBase Database · checked Sep 20, 2026
6	Horizon Alpha	Indirect evidence	Planegg, GermanyHQ checked Sep 20, 2026	11-50	25 contacts →
	Indirect evidence “Horizon Alpha ist ein dynamisches Softwareunternehmen, das sich auf die Entwicklung maßgeschneiderter Softwarelösungen spezialisiert hat.” Source: RevenueBase Database · checked Sep 20, 2026
7	Easirun Europa Gmbh	Indirect evidence	Usingen, GermanyHQ checked Sep 20, 2026	11-50	25 contacts →
	Indirect evidence “EasiRun is a European global provider of products, tools and solutions for software and software development with a focus on modernizing COBOL applications and development…” Source: RevenueBase Database · checked Sep 20, 2026
8	Linvelo	Indirect evidence	Lingen (ems), GermanyHQ checked Sep 20, 2026	51-200	25 contacts →
	Indirect evidence “Full-Cycle Software Dev & Digital Consulting Full-cycle software development Digital transformation Expert tech consulting” Source: RevenueBase Database · checked Sep 20, 2026
9	BBV Software Services Gmbh	Indirect evidence	München, GermanyHQ checked Sep 20, 2026	11-50	25 contacts →
	Indirect evidence “bbv Software Services GmbH mit Sitz in München ist ein Tochterunternehmen der Schweizer bbv Software Services AG.” Source: RevenueBase Database · checked Sep 20, 2026
10	Pica Gmbh	Indirect evidence	Munich, GermanyHQ checked Sep 20, 2026	51-200	23 contacts →
	Indirect evidence “PICA GmbH – Ihr Partner für intelligente Softwarelösungen seit 1985 Seit vier Jahrzehnten unterstützen wir Unternehmen dabei, ihre digitale Zukunft aktiv zu gestalten.” Source: RevenueBase Database · checked Sep 20, 2026
11	Evinent Gmbh	Indirect evidence	Grasbrunn, GermanyHQ checked Sep 20, 2026	11-50	23 contacts →
	Indirect evidence “We help industry-focused businesses modernize outdated systems and implement advanced technologies.” Source: RevenueBase Database · checked Sep 20, 2026
12	Devware Gmbh	Indirect evidence	Wuppertal, GermanyHQ checked Sep 20, 2026	11-50	18 contacts →
	Indirect evidence “Die DEVWARE GmbH begleitet seit 2004 mittelständische Unternehmen auf dem Weg in die digitale Zukunft.” Source: RevenueBase Database · checked Sep 20, 2026
13	Spaceteams	Indirect evidence	Hamburg, GermanyHQ checked Sep 20, 2026	11-50	15 contacts →
	Indirect evidence “Spaceteams – Custom software engineering for real impact.” Source: RevenueBase Database · checked Sep 20, 2026
14	Pitss Gmbh	Partial evidence	Stuttgart, GermanyHQ checked Sep 20, 2026	51-200	15 contacts →
	Partial evidence “PITSS is a leader in Oracle Modernization specializing in Oracle Fusion Middleware Developer Tools (Oracle Forms, Reports, JDeveloper / ADF, APEX) and WebLogic Server.” Source: RevenueBase Database · checked Sep 20, 2026
15	build.one	Partial evidence	GermanyHQ checked Sep 20, 2026	11-50	14 contacts →
	Partial evidence “Build.One revolutionizes the modernization of enterprise applications by transforming outdated systems into modern, scalable, and user-friendly web solutions.” Source: RevenueBase Database · checked Sep 20, 2026
16	Byteagenten Gmbh	Indirect evidence	Nuremberg, GermanyHQ checked Sep 20, 2026	11-50	14 contacts →
	Indirect evidence “Die byteAgenten sind ein Team aus Spezialisten, die Technik lieben und Partnerschaft leben.” Source: RevenueBase Database · checked Sep 20, 2026
17	Crowdcode Gmbh & Co. KG	Indirect evidence	Montabaur, GermanyHQ checked Sep 20, 2026	11-50	13 contacts →
	Indirect evidence “CROWDCODE creates future-proof individual software for complex system landscapes in the areas of web, data, cloud and mobile.” Source: RevenueBase Database · checked Sep 20, 2026
18	Conemis	Partial evidence	Karlsruhe, GermanyHQ checked Sep 20, 2026	11-50	13 contacts →
	Partial evidence “conemis enables continuous modernization in enterprises with the automated transition to cutting-edge software applications.” Source: RevenueBase Database · checked Sep 20, 2026
19	Progeek Gmbh	Indirect evidence	Flensburg, GermanyHQ checked Sep 20, 2026	11-50	12 contacts →
	Indirect evidence “Wir sind die Progeeks!” Source: RevenueBase Database · checked Sep 20, 2026
20	Codecare Software Gmbh	Indirect evidence	Darmstadt, GermanyHQ checked Sep 20, 2026	11-50	12 contacts →
	Indirect evidence “codecare software GmbH modernisiert komplexe Software.” Source: RevenueBase Database · checked Sep 20, 2026
21	Dacher Systems Gmbh	Indirect evidence	Berlin, GermanyHQ checked Sep 20, 2026	11-50	11 contacts →
	Indirect evidence “Dacher-Systems GmbH wurde im Jahre 2005 vom heutigen Geschäftsführer Tiberius Dacher gegründet und ist tief in der Entwicklung von Technologien verwurzelt, die die digitale…” Source: RevenueBase Database · checked Sep 20, 2026
22	Quality Bytes Gmbh	Indirect evidence	Bad Breisig, GermanyHQ checked Sep 20, 2026	11-50	10 contacts →
	Indirect evidence “Gegründet 2018, unterstützt Quality Bytes als Team aus über 15 spezialisierten Entwicklern Unternehmen mit eigener Branchensoftware dabei, ihre technologische Innovationskraft…” Source: RevenueBase Database · checked Sep 20, 2026
23	TMN Systemberatung Gmbh	Indirect evidence	Stuttgart, GermanyHQ checked Sep 20, 2026	11-50	10 contacts →
	Indirect evidence “TMN Systemberatung GmbH Unternehmen müssen sich heute komplexen Herausforderungen stellen.” Source: RevenueBase Database · checked Sep 20, 2026
24	Estem Gmbh	Indirect evidence	Cologne, GermanyHQ checked Sep 20, 2026	11-50	10 contacts →
	Indirect evidence “For nearly 5 years estem helps its customers on their way to efficient digitalization: from custom enterprise integration solutions to ad- hoc tailored software on any scale.” Source: RevenueBase Database · checked Sep 20, 2026
25	Krafteq Gmbh	Partial evidence	Leverkusen, GermanyHQ checked Sep 20, 2026	11-50	9 contacts →
	Partial evidence “We are a Europe‑first software consultancy specializing in modernizing legacy systems, improving reliability, and accelerating software delivery for organizations across Europe…” Source: RevenueBase Database · checked Sep 20, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: legacy app modernization companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names legacy app modernization companies.
Partial evidence: Its own public description names part of legacy app modernization companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name legacy app modernization companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 112 legacy app modernization companies based in Germany

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Legacy app modernization companies based in Germany at a glance

As of Sep 20, 2026

24.8%Verified-email coverage

57.2Average contacts per company

1-10Median size (employees)

8.0%Largest-city concentration · Berlin

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

Email recency for this list is measured worldwide rather than for Germany, so it is reported there. Company counts and contact totals on this page are exact for Germany, over 112 companies.

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 legacy app modernization companies, 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.
What qualifies: Companies headquartered in Germany whose own description of what they do matches “legacy app modernization companies”. 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 legacy app modernization companies), 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 legacy app modernization 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 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, 1,592 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 20, 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.

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 legacy app modernization companies, 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 legacy app modernization companies are there based in Germany?

RevenueBase identified 112 legacy app modernization 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?

Software AG, headquartered in Darmstadt, tops this list with the largest team on record.

Which city has the most legacy app modernization companies?

Berlin leads with 9 headquartered companies, followed by Hamburg (6) and Frankfurt (4).

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 1,592 verified decision-maker contacts tracked across these 112 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 20, 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.