We've gone from tretton37 to 13|37.

We’re still the same company with the same heart and focus on empowering clients and colleagues – and that will never change – but now we’re shorthand! If you want to get in touch to talk to us about empowering your organisation, uncovering your digital capabilities or find out more about life at 13|37 then head on over to 1337.tech.

tretton37.com will be available for a limited transition period only. Have a wonderful day.

Visit us at 1337.tech

we create well-crafted custom software

meticulously and always with Integrity, Quality and Pride, since 2010

Software professionals

We help businesses grow, develop and mature by strengthening existing teams & development organizations with exceptional talent.

Our highly experienced professionals can help your business needs either with on-site or remote deliveries within various stages of software delivery or maturity.

Turn-key deliveries

We deliver your new products and bring new initiatives to commercial reality by utilizing our exceptional talent, experience & structure.

Rest assure that our cross-functional delivery teams will deliver highly robust, scalable and secure custom software, in budget and in time. That is our tretton37 promise.

Tailored software services

Our exploration, ideation and growth services are custom tailored to fit your next idea or uplift existing product development.

We pride ourselves in expertise ranging from planning, design, prototyping, cloud, testing all the way to quality reviews or close care of your product during its lifetime.
We aid forward thinking organizations in pioneering digital transformation and solving business critical ambitions using modern technology.
_a few select


_if you have an ambitious goal ...

we've got this.

We are consulting specialists who can strengthen your new or existing team at any stage of the software production process. We specialize in solving tougher and more complex challenges to help our clients reach their goals by delivering well-crafted software solutions. We are proud to always drive our collaborations in an inclusive approach, as one combined team.

We do not only bring a fresh set of eyes, we take pride in our competences. We always work with passion, accountability and reliability. We care about our clients by caring about our consultants, their wellbeing and knowledge. With our extensive care our consultants are fit to take the best care of our clients. After all, our vision is to become the most admired company, and the only way we can reach our goal is to make sure that we always work with quality, integrity and the most admired people.

tretton37 empowers organizations to embrace their digital destiny and bridge opportunities with powerful & well-crafted technology.
_a glimpse into our most frequent

engagements & consultancy services

Web Development

Specialist in developing internal high performing internal tooling, PWAs and e-commerce solutions. We utilize REACT, VUE, Angular and other frameworks

System Development

We were built on trustworthy and performant system development. We are highly skilled in .NET, JavaScript, Typescript, NodeJS, Deno, Java, Python, Scala and others.

Mobile Development

We help clients to build and release iOS & Android applications using either native (Swift, Kotlin, Java) or cross-platform approaches with Flutter or Xamarin.

Cloud Development

As early adopters of cloud technologies, we have embraced and leveraged the possibilities of AWS, GCP & Azure with leading experts and certified consultants.

Data Development

At tretton37 we understand the importance of premeditated, normalized and scalable data gathering and analysis. Our data engineers and data scientists harvest the power of your data at any scale.

Quality assurance

Assuring the highest levels of quality echoes to our core nucleotides in our delivery DNA. Our expert QA Engineers empower a quality product with automated tests, with end-to-end checks, to ensure an always smooth and performant solution.

Design & usability

High quality and immersive interfaces are key in a modern software solution. Our extensive UX team enables our clients to clearly communicate intent and provide ease of use in a visually pleasing way.

Innovation & product development

Building the right it is as important as building it right. We do both! Through our innovation workshops, design sprints and value definition services, we help you bridge your business with technology.

Security operations

Security being another nucleotide in our delivery DNA focuses on constantly ensuring an impenetrable software solution within all stages of our development process.

_we are there for you in every step of the

journey through your lifetime of a software product

Project Initiation

If you have an idea but you are uncertain how to take the next step, we at tretton37 will get your project properly kicked off and on its way. We will help you set up a clear foundation for your project, from vision, to business case, to definition, to project structure and governance.


We will help you get your idea flying with help of prototyping and ideation workshops - from adding value to your current applications to defining the next big thing. Together we will visualize and demonstrate the validity of your ideas and concepts and make your project take off.


Design, Develop, Test and Deliver. Delivering well crafted and fully tested software made to meet your needs and priorities. We, tretton37, will provide you with a full-stack software development team.


It doesn’t stop after your application or service is released and the world around us is constantly changing and evolving. Our near zero legacy approach ensures that our software is constantly maintained, updated, renovated and reinvigorated to fit our changing environment.