Local SEO Bureau

On is a great SEO partner for us. They’re highly skilled both when it comes to content and to technical execution. And as a team, they’re super approachable and great to work with! Earlier this year, they carried out a full SEO analysis of our site, along with clear technical and content improvements we could implement ourselves or through our web developer. After three months, the results are already clearly visible!

Bureau Onder has been our go-to SEO partner for several years now. The collaboration is professional, pleasant, and focused on results. They’re easy to reach, proactively think along with us, and know how to translate complex SEO issues into clear, actionable steps. Thanks to their expertise and involvement, our online visibility has been steadily improving. A reliable partner—I can wholeheartedly recommend them. Kind regards, Alex Zörner CEO, VLIEG Advies Groep

Great company to work with. Knowledgeable and engaged.

A few years ago, I took Bureau Onder’s 1-day advanced SEO training. It helped me a great deal: I learned a lot from it and built a strong foundation that I’ve been using in my work ever since, day to day. In the meantime, we’ve been working with Bureau Onder for quite some time—both for complex questions and as a sparring partner. What I really appreciate is their clear communication, great guidance, and excellent availability. A company I would definitely recommend!

We've had a great experience working with this team. They are always helpful, responsive, and take the time to answer every question thoroughly. Communication is smooth, and you can tell they genuinely care about delivering results. What stands out most is the clear progress we've seen over time. Their expertise have made a real difference. We're very satisfied with the collaboration and highly recommend working with them.

We’ve been working together for a number of years with different clients, so SEO and SEA really complement each other. We’ve also done some great things together when it comes to CRO and measurement. It’s a really great team to work with—it feels like home, like a place where everyone has their own role, but it all comes together as one. Highly recommended!

On the front end of a website or webshop, we often put a lot of focus—after all, that’s what visitors see. But the real power is behind the scenes: the engine room that makes everything run smoothly. From processes and structure to the right information at the right time. That’s where the difference is made between just getting visitors and actually receiving contacts and requests. Today, SEO, AI SEO, CRO, and all the technical optimizations form the foundation of online visibility. We were looking for more than just pretty talk or generic advice. We wanted a partner with a clear strategy, strong reasoning, and above all, measurable results. That’s how we ended up with ONDER team. From the very first moment, clarity and involvement stood out. No complicated story—just looking together at opportunities and taking direct action. And in our situation, that became visible in the results just as quickly. Thanks to Leanne and Tristan, and—going forward—also a little bit Bart. Together, you’ve brought our digital engine room fully up to date. Thank you! Great results!

Helped a lot and gave some great tips.

We recently attended a training at Bureau Onder, led by Cynthia, and it was absolutely a valuable experience! The training was strong in terms of content, practical in approach, and really pleasant to follow. Theory and practice were continually alternated, so everything could be applied right away to our own situation. Our team gained valuable knowledge! Thank you, Cynthia!