Maarten Stienen

Maarten Stienen serves as COO and managing director at KLM. KLM operates in the marketing & advertising sector with approximately 210.0 employees. The company is headquartered in The Hague, South Holland.

Industry & Role Insights

• • MessageCEO tracks 9,879 executives in the marketing & advertising sector.
• • 325 executive contacts are available in South Holland.
• • Our database includes 201,469 c suite-level executives.

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Jose Vivar Group CTO-CIO at 014 Media

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David Amoros CEO, Creative Director at 023. Think. Create. Produce.

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David Puig CEO, Creative Director at 023. Think. Create. Produce.

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Mike Davison Group CEO at 1000heads

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Emily Nicholson Chief Operating Officer at 100 Pound Social

Outreach Guidance — marketing & advertising Sector

Executives like Maarten Stienen in the marketing & advertising sector receive targeted outreach from sales teams, recruiters, and investors. To stand out, personalize your message with industry-specific context and a clear, specific value proposition relevant to their role at KLM.

Maarten Stienen's Position in the MessageCEO Database

• •Maarten Stienen is 1 of 1 verified executive contact we track at KLM.
• •9,714 verified executive contacts in marketing & advertising are in the MessageCEO database.
• •322 verified executive contacts in South Holland are in the database.
• •43 verified contacts work at marketing & advertising companies in the 210.0 employee range (same size as KLM).

Executive contact data compiled from public business filings, LinkedIn public profiles, company press materials, and verified outbound email testing. We do not publish personal addresses or sensitive identifiers. Methodology & sources · Removal requests handled at /remove-info · Updated June 2026.

How do I reach Maarten Stienen directly?

Maarten Stienen's verified email address is available to MessageCEO Pro subscribers. They currently serve as COO and managing director at KLM. Access direct contact info to skip gatekeepers and reach the decision maker.

What company does Maarten Stienen work for?

Maarten Stienen is COO and managing director at KLM, a company in the marketing & advertising sector with 210.0 employees. The company is based in The Hague, South Holland.

Can I pitch or sell to Maarten Stienen?

As COO and managing director at KLM, Maarten Stienen is a key decision-maker in the marketing & advertising sector. MessageCEO Pro gives you verified email to reach Maarten Stienen directly — ideal for B2B sales, partnerships, and executive recruiting.

What industry is Maarten Stienen in?

Maarten Stienen works in the marketing & advertising industry as COO and managing director at KLM. MessageCEO provides verified contact information for executives across all major industries.

Is Maarten Stienen's contact information verified?

Yes. MessageCEO verifies executive contact information through multiple data sources and regular validation checks. Maarten Stienen's profile is kept up-to-date with the latest available information.

Last updated: June 27, 2026