Design that works as good as it looks.
I’m based in Rotterdam, the Netherlands (CET timezone), but I’m happy to collaborate with clients worldwide.
Hi, I’m Jantine — a freelance designer based in Rotterdam. I’m the founder of Haelsum, a small but impactful design studio for brands on a mission. I help creative, kind brands and businesses stand out through thoughtful brand, digital and graphic design.
-> Let’s work together!
Selected work
-> See all work
A fresh, clean website for social work organization SOL Network ->
Digital Design
A fresh, colorful brand identity for social changemakers GRID Impact ->
Branding, Illustration
A friendly, approachable brand identity for helping people rest better with FullEight ->
Branding, Digital Design, Packaging Design
A professional, outspoken rebrand for search and consultancy agency Neo-Mundo ->
Branding, Digital Design
Design taken care of, so you can focus on what matters.
Services
From brand identities to digital experiences, I create design solutions that look stunning, feel intuitive, and support your growth.
-> Explore all services
Kind words
“Jantine delivered a beautiful brand, on target, and on budget. She translated our ideas into a real, tangible visual identity that resonates with our customers and sets us apart from the competition. We’d absolutely work with her again!"
Patrick Redmond
CEO & Founder FullEight
"She’s a great communicator with a structured approach, while leaving room for creative playfulness. It resulted in an amazing brand package that helps showcase our scientific research."
Raj Jagesar
Information Science at Behapp
Let’s get in touch!
Haelsum is a Rotterdam-based design studio offering branding, web design, digital design, and illustration for creative and mission-driven brands. Working with clients in the Netherlands and worldwide.
© 2025 Haelsum — Thoughtful design made with care, coffee, and a little bit of creative magic.
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