web applications, intra & extranets, news portals, e-shops with system integrations
web applications, intra & extranets, news portals, e-shops with system integrations


Our passion is to create
value in the digital world

Complex web applications, intra & extranets, news portals, e-shops with system integrations.

About us Contact us


We are a Drupal focused web development agency

with an open-source mindset, recognized as a Drupal Certified Partner.

What our customers are saying

Kaisa Nummela

I’ve always felt that you are very committed to helping us and always ready to work hard to get things done or solve any issues (even when SLA agreement has not been in place).

You are very skilled and competent in what you do.

You are really fast in developing new features or even applications when there is a need to have something ready extremely quickly.

Kaisa Nummela

Portfolio Owner, Digital Channels


Den Howlett

We get a powerful yet bespoke system that grows with our needs without compromising performance. 

The team works hard to ensure they understand requirements (and make us think carefully before committing!).

BRAINSUM helped us flip the maintenance/innovation cost profile so that we get much more innovation than was possible with the old system.

Den Howlett

Founder of diginomica.com

Bonnie Annis

Brainsum has managed the process with excellent skills and lots of grace for the last 6 months, and we look forward to working with them to continue to enhance the site and bring our clients new opportunities to connect, learn and shop.

Bonnie Annis

Partner and Creative Director


Juana Wolff

They have been very respectful of our time, resulting in a productive and very efficient collaboration.

We hired BRAINSUM for web hosting, website development and web design services. Our goals were to migrate the old content to the new Drupal 9 platform and achieve a better performance of the site. Moreover, we are working on several new projects, such as the development of specific databases for public access.

Juana Wolff
Ruben Teijeiro

Good technical and architectural mindset, which is essential for software products development.

Diverse team, both in professional and personal aspects.

Structured organisation following agile methodologies.

Ruben Teijeiro

Cofounder - Youpal Group


Judit Aba

The cooperation went very smoothly and seamlessly and we are very satisfied with the end result.

The team, led by Peter, is absolutely solution-oriented and has a positive attitude. We will definitely turn to Brainsum for all our development tasks in the future.

Judit Aba

Marketing Manager

Dr. Rose Private Hospital

Balázs Tornai

I have been working as an agile methodology advisor with the team for a couple of years.  Over my stint working with Brainsum, we've adapted our workloads while adjusting to high and low intensities.

It's been truly rewarding working with them: they have never regressed while employing a smooth and amazing persistence to keep on developing.

Balázs Tornai

Agile transformation expert
Owner of Scrum Master Suli

Marko Korhonen
  • good comms
  • reliable & trustworthy
  • professional
Marko Korhonen

CTO at Druid Oy

Bence Újlaki

We really value the high level of professionalism that Péter’s team continously demonstrates in our projects. Their solution-oriented approach and flexibility are a real asset in our rapidly changing business environment.

Bence Újlaki

Digital Marketing Specialist


Selected case studies

One-page site builder platform
Landing page builder platform

more than 300 landing pages

more Case study about Landing page builder platform
A Dance Theatre website
Ifjú Szivek Dance Theatre

the Hungarian dance and cultural life of Slovakia

more Case study about Ifjú Szivek Dance Theatre
Communication and event management platform
Communication and event management platform

for governmental tax authorities from among 44 countries

More Case study about Communication and event management platform
IT news portal with global audience
IT news portal

with global audience

More Case study about IT news portal
Digital Asset Management (DAM)
Open source DAM


More Case study about Open source DAM

Would you like to learn more about our approach?

Contact us

Proud to be one of the top 5% of Drupal agencies

BRAINSUM received the Drupal Certified Partner certification from the International Drupal Association. This is recognition for us continuously creating our Drupal projects at a high professional level and sustainably.
The Drupal Association determines this objectively based on a complex algorithm.