Company & People
Conversion Stream develops strategies and solutions for major online players. We help our customers find the right marketing mix to achieve their goals.
Experience, passion & skills
At Conversion Stream, we are able to approach the challenges of website optimization with years of technological and marketing know-how. But just as important, our services are backed by passion.
There are numerous companies claiming to have magic tools and unique methods. We have the skills to manage online marketing projects, visualize the path to success and deal with multiple priorities.
That is our commitment to your success.
Our Philosophy of Your Success
1. Integral Online Marketing Approach
Because we have experience in determining and prioritizing marketing efforts with a strategic perspective, we believe we can deliver high quality support as a full-service marketing company.
2. Combining Short and Long Term ROI
We combine both your short and long term objectives with KPI’s and conversion goals. This ensures that we work together on long term interests and a continuous growth of your business.
3. The Synergy of Shared Know-How
Collaboration is the key to maximize the effectiveness and success of your website. We combine your expertise of your business and our expertise of winning websites and as a result, we reach a maximum synergy.
The foundation of this interaction is changing your web analytics from a data aggregation tool into a learning machine.
About Gerben Coumou
Gerben Coumou is the founder of Conversion Stream, a small and dedicated online marketing company in the Netherlands.
Gerben has been professionally involved with the internet since 2002. With his strong analytical skills and result-driven approach, he is able to successfully offer creative problem-solving solutions for his clients.
These clients include well-known brands, such as: KPN, Nutricia, Oxxio, Schiphol and Sony. Customers enjoy working with him because he achieves great results, is personable and an expert in online marketing.
His BEc in Marketing Management and no-nonsense approach to Website Optimization has resulted in staggering increases in traffic and conversion rates.
Outside of work, Gerben plays water polo, loves good coffee and likes to watch cult movies.

