About us

Since 2018, strategic partner in people- and results-driven success.

Our story

MARSS started in 2018 as an agency for branding, design and web development. Over the years we have grown into a pioneer in the AI-native transition, taking companies through that progression step by step.

We help large organisations empower their teams with technology they actually use. And we help growing companies keep bringing their authentic story to the world.

Precisely because we spent years building unique brand stories and efficient websites, we can now lay the foundation: internally, with systems and CRM, and externally, with your brand and your site.

Since 2025 we have been part of BBI. That lets us draw on fifteen companies to truly deliver AI for our clients. The journey to MARSS has become something much bigger.

What we stand for

Authentic stories Every brand its own voice.
People-driven Personal and close by.
Systems that work AI-native and connected.
Results Measurable, month after month.

Part of BBI

Part of BBI since 2025.

More than 70 people work at BBI, across 15 companies. MARSS is the technical engine, the rocket beneath it all.

Contact our advisory team

Julian Stam

Business consultant

Brand, website and performance branding. Makes sure you stand out, get found and grow.
Chat directly with Julian
Hans Weehuizen

CCO, Consultant

Strategic advice on AI transformation, processes, data and custom systems.
Chat directly with Hans

Management team

Guanito Leeuwin

CEO & Founder MARSS

Creative collaborations, technical insight and knowledge about AI.
We will call you back
Brandon Schotanus

CEO BBI, Partner MARSS

Strategic advice and scaling your business.
We will call you back
Bas van Seters

Operations manager BBI

Legal advice and GDPR, including around AI. Oversees operations across all of BBI.
We will call you back