Unleash your brand's potential with iO: your leading marketing agency in 2025

iO: Pioneers in marketing excellence

Girl smiling at iO campus

Welcome to iO, an award-winning digital marketing agency pushing the boundaries of marketing and technology. Since our inception in 2005, we have developed into the leading marketing agency in Belgium and the Netherlands a, specializing in transforming brands and driving growth.

Our goal? To provide a rich and relevant brand experience for our customers - a belief that has made us an industry leader.

  • We create impact on your brand and business

  • Driven by a culture of passion

  • Focused on results with an extreme focus on your ROI

Answers to business challenges

iO is not just another marketing company; we are a digital marketing agency that provides customized solutions to the most complex challenges:

  • Brand business & experience design: Strengthen your brand identity and create unforgettable customer experiences.

  • Digital platforms: Develop robust digital platforms that drive engagement and customer loyalty.

  • Cloud data & integration: Implement advanced cloud solutions and data strategies for better decision making.

  • Marketing programs & campaigns: Launch effective online marketing campaigns that resonate and convert.

  • Creative & content production: Create compelling content that tells your brand story.

  • Transforming & consulting: Undergo digital transformation with strategic insights and consulting.

A diverse spectrum of marketing services

As your online marketing agency, iO offers a broad spectrum of services, from search engine marketing (SEO/SEA), content marketing, email marketing to social media marketing, each aimed at attracting new customers and accelerating the growth of your business. 

Take your website to the next level with Google Ads and our online marketing expertise. Whether it's advanced analytics, creative brand storytelling, or cutting-edge technology integrations, iO is at the forefront. 

Our approach combines these forms of marketing into a harmonious blend, tailored to the unique needs of your online presence. 

With integrations of marketing platforms like HubSpot, we ensure a streamlined and efficient approach to your marketing strategies, allowing your business to take advantage of the power of social media and the latest trends in online marketing.

Impact on brands & business: Our results speak for themselves

Our marketing companies have delivered impactful results for clients such as Audi and Efteling. These success stories demonstrate our ability to transform and deliver tangible results, always with a focus on significant ROI. Discover the impact we can create as a digital marketing advertising agency on our cases page.

Your future, our passion.

iO, best digital agency 2024

iO is known as a leading digital marketing agency thanks to our unique blend of technology, creativity and strategy. Our mission and vision are rooted in creating unparalleled brand experiences and driving your business growth.

Choosing iO means trusting a digital marketing agency that is recognized for its expertise, authority and reliability in the industry. Our commitment to your success is underpinned by:

iO's difference: Where expertise and reliability come together

Our unique blend of technology, strategy and creativity sets us apart not just as a marketing agency but as a trusted advisor in your growth journey. With a deep focus on collaborative intelligence, we fuel innovation by:

  • Integrated approach: We bring together multidisciplinary teams to meet your specific needs.

  • Passion for Progress: Our commitment to constant improvement and innovation positions us at the forefront of the industry.

  • Results Orientation

  • Your success is our priority, driven by strategies that deliver real results.

+2 200 experts, always nearby

Our more than 2,200 experts in marketing, technology, strategy and content & creation are always close by.

iO is both a Belgian digital agency with offices in Antwerp, Brussels, Ghent and Herentals, as well as a Dutch digital agency in the Netherlands with offices in Amsterdam, Den Bosch, Eindhoven, Rotterdam and Utrecht. We also have offices in Gothenburg, Copenhagen, Sofia and Stockholm.

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Let's grow together

iO offers various collaboration models, from classic agency models to blended collaborations and consulting, to meet the specific needs of each client. 

Whether you're looking for online marketing agencies or a digital marketing agency that can take your business to the next level, iO is here for you. 

Is your company ready to partner with the most dynamic digital marketing agency? Contact iO today. Together, we will tackle your unique challenges and take your brand to new heights.

How can we help you?

We're excited to see how we can help you.