Laurent Calsyn

Laurent Calsyn serves as Chief Technical Officer (CTO) at Andra. Andra operates in the environmental services sector with approximately 720.0 employees. The company is headquartered in Paris, Ile-de-France.

Industry & Role Insights

• • MessageCEO tracks 1,660 executives in the environmental services sector.
• • We have verified contacts for 2 executives at Andra.
• • 4,101 executive contacts are available in Ile-de-France.
• • Our database includes 201,464 c suite-level executives.

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Haydar Haba Chairman & CEO at Andra

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Anna Rindefjell Chief Operating Officer & Brand Director at 2050

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Jannick Schmidt CTO (Chief Technology Officer) at 2-0 LCA

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Ryan Smith CEO at 360 Energy Liability Management Ltd.

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Bryce Watson Chief Technical Compliance Officer at 360 Energy Liability Management Ltd.

Outreach Guidance — environmental services Sector

Executives like Laurent Calsyn in the environmental services 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 Andra.

Laurent Calsyn's Position in the MessageCEO Database

• •Laurent Calsyn is 1 of 2 verified executive contacts we track at Andra.
• •1,626 verified executive contacts in environmental services are in the MessageCEO database.
• •4,045 verified executive contacts in Ile-de-France are in the database.
• •1 verified contacts work at environmental services companies in the 720.0 employee range (same size as Andra).

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 We do not publish personal addresses or sensitive identifiers.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 November 2026.

How do I reach Laurent Calsyn directly?

Laurent Calsyn's verified email address is available to MessageCEO Pro subscribers. They currently serve as Chief Technical Officer (CTO) at Andra. Access direct contact info to skip gatekeepers and reach the decision maker.

What company does Laurent Calsyn work for?

Laurent Calsyn is Chief Technical Officer (CTO) at Andra, a company in the environmental services sector with 720.0 employees. The company is based in Paris, Ile-de-France.

Can I pitch or sell to Laurent Calsyn?

As Chief Technical Officer (CTO) at Andra, Laurent Calsyn is a key decision-maker in the environmental services sector. MessageCEO Pro gives you verified email to reach Laurent Calsyn directly — ideal for B2B sales, partnerships, and executive recruiting.

What industry is Laurent Calsyn in?

Laurent Calsyn works in the environmental services industry as Chief Technical Officer (CTO) at Andra. MessageCEO provides verified contact information for executives across all major industries.

Is Laurent Calsyn's contact information verified?

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

Last updated: November 3, 2026