Onder the impression? We'd love to help!

Request a SEO quote and we will get back to you

Request a quote

For the following onder parts, we will gladly send you a SEO quotation:

  • SEO audit (comprehensive or summary)
  • Technical SEO audit
  • SEO advice (one-off or subscription-based)
  • SEO migration advice
  • SEO training
  • SEO copywriting
  • Conversion optimisation
  • SEO fully outsourced

100% focus

Through our 100% focus on SEO, we achieve great results for our clients. We take a personal approach and are happy to share the knowledge we have.
So you can come to us for various SEO services: from a SEO audit and advice up to the outsource your link building and having SEO copywriting.

We also offer a training SEO so that you can then work on improving your online visibility yourself. 

SEO specialists

The specialists from Onder are on hand to help you achieve strong visibility and good search engine rankings.
Our team consists of SEO specialists who have several years of experience to their credit. As a result, they are versatile and can answer all your SEO questions.

Could your website use a boost? Then feel free to contact us to go through everything together.

Any questions?

Get in touch! :) we are happy to help you with all your SEO questions

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Any questions?

Do you want to know more about SEO? Could your website use a new boost?
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This is us!

A team of SEO specialists

Our team consists of enthusiastic SEO specialists who are happy to work with you for the best results.

Meet our team

These customers are supupside down from us!

Renzo van Dongen

Renzo van Dongen

Digital content manager Peugeot

Whether it's about content or technical adjustments, it doesn't matter. Martijn briefs this in a very clear way so that it can be implemented locally or by our head office in France. [...] Since the start of our collaboration, we have achieved great results. Keep it up!

Marien van Stegeren

Eigenaar Kitcentrum

When your online onder venture grows, expectations often grow too, in every area. To a large extent, we were in control of SEO and its interpretation ourselves. We found out that our own "general view" was no longer sufficient, so we engaged Bureau Onder. Surprising and clear. We have built up a fine collaboration, partly because Martijn also regularly visits our office with Eline or Mariska (depending on the case), which is very valuable to us!

Marten Stellingwerf


Martijn and Mariska make the SEO story understandable for the layman and are happy to think along with us. It is nice that there is a personal contact moment every month with an extensive report and the opportunity to talk everything through. After just a few months, Onder has already managed to achieve number 1 positions on Google with some of our webshop pages. We are very satisfied with Onder.

Mark Prummel

SEO Specialist Stella Fietsen

For several years, Onder has been a valued partner of Stella. Martijn is my sparring partner for complex SEO issues and the extra pair of critical eyes that keeps us on our toes. Together, we have achieved nice growth in online visibility, visitor numbers and leads. Onder onder stands out for its short lines of communication and professionalism. They speak our language: don't nag, get down to business. That is what we love!


Don't miss a single SEO insight
  • Insights on SEO
  • For beginners and advanced specialists
  • From experiments to developments at Google and from
    best practices to our own cases
  • A look behind the scenes at Onder

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