Leon Jansen

Leon Jansen serves as CTO at Promax IT. Promax IT operates in the information technology & services sector with approximately 140.0 employees. The company is headquartered in Bergschenhoek, South Holland.

Industry & Role Insights

• • MessageCEO tracks 50,503 executives in the information technology & services sector.
• • 325 executive contacts are available in South Holland.
• • Our database includes 201,469 c suite-level executives.

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Marvin Jo CTO at 위블링

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Kyung Lim CTO at 인터파크

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Wonho Kang 라포테이블(팔도감) | CEO · Product Lead at 라포랩스(퀸잇)

Outreach Guidance — information technology & services Sector

Technology executives make decisions on infrastructure, tooling, and partnerships. When reaching out to Leon Jansen, lead with your value proposition relative to the stack they currently use. Generic pitches perform poorly; specific technical relevance is key.

Leon Jansen's Position in the MessageCEO Database

• •Leon Jansen is 1 of 1 verified executive contact we track at Promax IT.
• •49,754 verified executive contacts in information technology & services are in the MessageCEO database.
• •322 verified executive contacts in South Holland are in the database.
• •833 verified contacts work at information technology & services companies in the 140.0 employee range (same size as Promax IT).

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 We do not publish personal addresses or sensitive identifiers.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 Leon Jansen directly?

Leon Jansen's verified email address is available to MessageCEO Pro subscribers. They currently serve as CTO at Promax IT. Access direct contact info to skip gatekeepers and reach the decision maker.

What company does Leon Jansen work for?

Leon Jansen is CTO at Promax IT, a company in the information technology & services sector with 140.0 employees. The company is based in Bergschenhoek, South Holland.

Can I pitch or sell to Leon Jansen?

As CTO at Promax IT, Leon Jansen is a key decision-maker in the information technology & services sector. MessageCEO Pro gives you verified email to reach Leon Jansen directly — ideal for B2B sales, partnerships, and executive recruiting.

What industry is Leon Jansen in?

Leon Jansen works in the information technology & services industry as CTO at Promax IT. MessageCEO provides verified contact information for executives across all major industries.

Is Leon Jansen's contact information verified?

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

Last updated: June 26, 2026