Hi there

Mathijs Sterrenburg is a hard-to-pronounce Dutch name, so most people call me Math. I'm currently a freelance creative director & allround designer with 13+ years experience. In those years I've worked with organisations & clients of all sizes, ranging from start-ups up to fortune 100 companies globally.

Design is a great tool to uncover & solve problems that actually matter. Ever since starting my career, I've been on personal mission to use it to create a positive social & climate impact around the globe. I enjoy leading and collaborating with multidisciplinairy teams to create sustainable and human-centered products, experiences, brands and solutions that drive tangible results.

Portrait photo of Mathijs Sterrenburg

Why I primarily help changemakers
There's plenty of pressing issues around the world that need attention. While I learned a lot from my years of working for world's biggest companies, I felt an intrinsic need to focus more on empowering changemakers, social entrepreneurs, B-corps & world improvers.

What sets me apart from others 
I share the commitment to make the world a better place. My years of experience in design & tech in the impact space give me a good grasp of how purpose-driven organisations can overcome challenges, stand out, grow revenue and in turn increase growth & positive impact.

Why I primarily help changemakers
There's plenty of pressing issues around the world that need attention. While I learned a lot from my years of working for world's biggest companies, I felt an intrinsic need to focus more on empowering changemakers, social entrepreneurs, B-corps & world improvers.

What sets me apart from others 
I share the commitment to make the world a better place. My years of experience in design & tech in the impact space give me a good grasp of how purpose-driven organisations can overcome challenges, stand out, grow revenue and in turn increase growth & positive impact.

What I bring to the table
A long history of  experience in leading human-centered design, user research, prototyping, testing, iterating & development. I like to balance having a helicopter view and working with teams hands-on, as I think collaboration is key for building impactful solutions.

Who I (don't) like to work with
I love working with passionate people & organisations on social and climate impact projects. If you are merely trying to make profits without taking ethics into consideration, or don't see much value in thorough strategy, branding or design, we might not be a good fit.

What I bring to the table
I combine human-centered design, tech & strategy to tackle business challenges. I have hands-on experience in user research, prototyping, testing, iterating & development. I like working with & leading teams as I believe collaboration is key for impactful solutions.

Who I like to work with
If you need help with a positive impact project and are ready to collaborate to grow your business or product, we're a great match. If you don't see value in strategy, branding or design or just want imagery fast & cheap (or free), check out Fiverr & Upwork instead.

What I can help with

What I can help with

Creative direction  Art direction  Brand strategy • Brand identity  UX/UI design  User research  Prototyping • Product design • Visual design • 2D & 3D Illustration  Photography  Animation  Videography XR design 

Creative Direction / Art Direction / Brand Strategy / Corporate Identity / 2D & 3D Design / Illustration / UX/UI Design / Marketing / Print Design / Webdesign / Visual Design / Animation / Motion Design / Videography / Photography / XR design 

Creative direction  Art direction  Brand strategy • Brand identity  UX/UI design  User research  Prototyping • Product design • Visual design • 2D & 3D Illustration  Photography  Animation Motion design Videography XR design 

Awards & features

  • International Serious Play Awards - Gold Award, 2021
  • Energy Industry Award - Best Public Engagement, 2019
  • Serious Board Game Awards - Silver Award, 2019
  • RAAK-Awards - Gold Award, 2017
  • Serious Play Conference - Bronze Award, 2017
  • AHK Best Art Project of the Year - Finalist, 2015
  • Short video Award 'Videoooooh' - Top Submitter, 2012
  • Celluloid Remix Video Montage - Finalist, 2012

  • Wired magazine
  • Photoshop Magazine
  • Advance Photoshop Magazine
  • London Olympics 2012 exhibition
  • N-Gamer magazine
Hand shaking trophy animation

Bonus trivia

  • I've been a mix of vegetarian & vegan for the past 14 years.
  • Big fan of videogames, and figuring out how to break them.
  • I write about the mix of design, tech & impact on Medium.
  • In my free time I volunteer my design & business skills to various animal welfare, mental health & climate projects globally.
  • This site is optimised to reduce the amount of CO₂e it produces.

PART OF

The Clean Creatives logo
The Climate Designers org logo
The 1% for the planet logo
The Terra.Do logo
The Design Declares logo
The Creatives for climate member logo
An animation of a hand holding a phone

But enough about me already

I'd love to lend a hand!

I'd like to learn more about you and your challenges as well! Book a quick call so we can chat and see what we can potentially do for each other.

But you might be wondering if we're a fit, right? Explore my work below, learn more about me or lets set up a call to talk about your challenges, no strings attached. 

But you might be wondering if we're a fit, right?
Explore my work below, learn more about me or lets set up a
short call to talk about your challenges, no strings attached. 

LinkedIn   |   Medium   |   Dribbble

© MATHIJS STERRENBURG 2025