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You have questions, we have the answers.

We work for leading companies in insurance, banking & finance, automotive & manufacturing, energy & utilities, retail & e-commerce, pharma & health, and the public sector. What matters is less the industry than the task: business-critical software that has to work reliably.
Autonomous AI agents take on development tasks across the entire software lifecycle – guided by the judgment of experienced engineers. New features emerge in days instead of months, without compromising quality or traceability.
Yes – this has been one of our core strengths for more than 20 years. Decades of business logic live inside grown systems. We modernize them step by step and without risk instead of rebuilding from scratch – preserving our clients’ competitive advantage.
We work EU AI Act ready and GDPR-compliant, with full EU data residency and explainable models with complete audit trails. Legal certainty is part of the design, not an afterthought.
We are certified to ISO 9001 and ISO 27001. Everyone at itestra is a university-educated computer scientist – many with a doctorate. More than 80 international scientific publications document our technical depth.
We respond quickly – usually within one business day. The first conversation is about your situation and how we can help. No obligation, at eye level, and gladly over a cup of coffee.

Deutschland, Österreich, España, Eesti, Sverige

DE

München

itestra GmbH

Destouchesstr. 68

80796 München

DE

Stuttgart

itestra GmbH

Heßbrühlstraße 7

70565 Stuttgart

DE

Köln

itestra GmbH

Hansaring 20

50670 Köln

DE

Frankfurt

itestra GmbH

Mainzer Landstraße 69

60329 Frankfurt am Main

DE

Berlin

itestra GmbH

Greifswalder Straße 226

10405 Berlin

DE

Hannover

itestra GmbH

Am Graswege 6

30169 Hannover

DE

Nürnberg

itestra GmbH

Frankenstraße 148

90461 Nürnberg

DE

Aachen

itestra GmbH

Burtscheider Markt 24

52066 Aachen

DE

Trier

itestra GmbH

Saarstraße 21

54290 Trier

DE

Passau

itestra GmbH

Nikolastraße 2

94032 Passau

DE

Tutzing

itestra GmbH

Bräuhausstr. 2

82327 Tutzing

AT

Wien

itestra GmbH

Gertrude-Fröhlich-Sandner-Straße 3

1100 Wien

ES

Madrid

itestra GmbH

Calle de Méndez Álvaro, 20

28045 Madrid

EE

Tallinn

itestra GmbH

Vääna 11/3-18

11612 Tallinn

SE

Stockholm

itestra GmbH

Gustav III:s Boulevard 42

169 73 Solna

DE

Kaufering

itestra GmbH

Ludwigstraße 35

86916 Kaufering