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Our Team

Pleased to meet you!

Here at Chapman Bright, we share a passion for Marketing Technology. Mostly focused on B2B and B2B2C with Marketo. We are true MarTech Fanatics. Stretching the limits in knowledge, experience and the successes we can achieve with our customers. Most of our customers are in software, high-tech, energy & utilities, business services, manufacturing, logistics, and commerce. We work with a large variety of marketing- and sales technologies, but Marketo plays a prominent role for us and our customers.


Diederik Martens
Chief Marketing Technologist & Founder

I’m passionate about marketing technology, marketing operations, and complex B2B sales. It’s my mission to help others succeed. After my last role as Head of World Wide Marketing Operations at Quintiq, I founded Chapman Bright, previously named SMOps. It was at Quintiq that my team was awarded the international Killer Content Award for our lead nurture strategy with Marketo.

I have almost a decade of daily Marketo experience. I’m the chairman of the official Dutch Marketo user group since 2012. Since then I’ve been named 3x to the Marketo Champion Elite Top-50. I’ve been among the first few individuals to ever get Marketo user certified (MCE). And I’m a Marketo Certified Solutions Architect (MCSA) with several specializations (e.g. integrations).

Read my bio

Jacques van Seeters
Principal Consultant & Partner

I’m passionate about MarTech and Growth Hacking. Formerly founder and director of Energiedirect and Zon-IQ. I bring decades of business growth and start-up mentallity to the table.

I have a few years of Marketo experience. And of course I’m certified at the highest level as Marketo Certified Solutions Architect (MCSA).

My LinkedIn Page

Katja Keesom
Senior MarTech Consultant

I enjoy combining an analytical mind, a passion for customer experience and a great imagination into delivering highly relevant Marketing activities. With more than 20 years of experience in different Marketing roles, I have gained a wealth of knowledge and experience in marketing analytics. As (PRINCE2 certified) project manager, I have been involved in delivering several international projects.

Among the projects I delivered was a large international Marketo implementation with custom integrations. It is exciting to experience first hand how Marketing Automation opens up a world of possibilities to unlock data at scale, using that to enhance customer experience and increase the amount of quality leads. I am also a Marketo Certified Expert (MCE).

My LinkedIn Page

Arjen Segers
Principal Consultant

In the past ten years I’ve been working in international marketing positions. Starting as a marketing & communications consultant at Utrecht University I progressively grew into my last position as marketing manager for a Los Angeles-based publicly listed company. Working out of Brussels, I have covered Benelux, Germany, United Arab Emirates and the Nordics, all with a major focus on demand generation.

Already Marketo Certified, I have experienced the added value of marketing technology myself when our sales teams frequently started hopping by my desk to share the business impact of joint marketing initiatives. By then it was clear that I didn’t want to limit that value to one organization.

After joining Chapman Bright I’ve been working as a Marketo Certified Solutions Architect on large accounts, such as DHL Express and Deloitte.

My Linkedin Page

Fianna van Dijk
MarTech Specialist

I have over 5 years of client side B2B marketing experience in the Hi-Tech and software industry, before joining Chapman Bright. At my former employer I worked with Marketo on a daily basis for two years.

In my role as MarTech Specialist at Chapman Bright I’m involved in many of our customer projects. And I’m responsible for our customer Helpdesk.

Since joining Chapman Bright I have attained the highest possible Marketo certification. The Marketo Certified Solutions Architect (MCSA).

My LinkedIn Page

Lot van Dongen
Office Manager

From December I will be working at Chapman Bright in the position of Office Manager. I want to ensure that everyone at Chapman Bright has the conditions to bring out the best in themselves. Don’t just think about basic things, such as an up-to-date administration or a tidy office with working internet and sufficient paper in the printer.

Because of my personal approach and my position as ‘spider in the web’ of the organization, I want to try to get that little bit extra about the wishes and requirements of my colleagues. I then fill this with a smile on my face, knowing that through me they have the possibilities to perform their work as well as possible. In short, I want to unburden and facilitate my future colleagues!

Flexible Staff


Henrik Becker
MarTech & SalesTech Consultant (Freelancer)

As a part of of Chapman Bright, I help B2B companies leverage their marketing technology stack to achieve revenue growth. In my role I combine marketing strategy and platform-specific skills (Marketo, Drift) to help customers drive results from their marketing efforts. Next to that I’m experienced in Salesforce with multiple certifications.


Heleen Abegg
Campaign Manager (Freelancer)

Heleen has a creative mind with a strong passion for international marketing.

She is a pioneer in marketing automation with 7+ years of Marketo experience. She is a Marketo Certified Expert (MCE).

Heleen supports Fianna with our customer Helpdesk and is mostly involved in campaign assembly in busy times for us.

Like to join our team?

Check out our Careers page