Charles Guillemet

Charles Guillemet serves as CTO at Ledger. Ledger operates in the computer & network security sector with approximately 740.0 employees. The company is headquartered in Paris, Ile-de-France. Ledger generates annual revenue of 60258000.0. To date, Ledger has raised 2537377536.0 in total funding, with the most recent round being Series C.

Industry & Role Insights

• • MessageCEO tracks 1,629 executives in the computer & network security sector.
• • We have verified contacts for 2 executives at Ledger.
• • 4,101 executive contacts are available in Ile-de-France.
• • Our database includes 201,469 c suite-level executives.

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Pascal Gauthier Chairman & CEO at Ledger

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Sharon Torati CEO at 10root Cyber Security

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Meni Bondarkar CTO at 10Secure

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Shay Tiv CEO at 10Secure

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Michael Cichon Chief Marketing Officer at 1Kosmos - BlockID

Outreach Guidance — computer & network security Sector

Executives like Charles Guillemet in the computer & network security 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 Ledger.

Charles Guillemet's Position in the MessageCEO Database

• •Charles Guillemet is 1 of 2 verified executive contacts we track at Ledger.
• •1,615 verified executive contacts in computer & network security are in the MessageCEO database.
• •4,045 verified executive contacts in Ile-de-France are in the database.
• •8 verified contacts work at computer & network security companies in the 740.0 employee range (same size as Ledger).

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 We do not publish personal addresses or sensitive identifiers.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

How do I reach Charles Guillemet directly?

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

What company does Charles Guillemet work for?

Charles Guillemet is CTO at Ledger, a company in the computer & network security sector with 740.0 employees. The company is based in Paris, Ile-de-France.

Can I pitch or sell to Charles Guillemet?

As CTO at Ledger, Charles Guillemet is a key decision-maker in the computer & network security sector. MessageCEO Pro gives you verified email to reach Charles Guillemet directly — ideal for B2B sales, partnerships, and executive recruiting.

What industry is Charles Guillemet in?

Charles Guillemet works in the computer & network security industry as CTO at Ledger. MessageCEO provides verified contact information for executives across all major industries.

Is Charles Guillemet's contact information verified?

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

Last updated: July 23, 2026