Sylvain Thieullent

Sylvain Thieullent serves as CEO at Horizon Software. Horizon Software operates in the financial services sector with approximately 91.0 employees. The company is headquartered in Paris, Ile-de-France. Horizon Software generates annual revenue of 55600000.0.

Industry & Role Insights

• • MessageCEO tracks 11,960 executives in the financial services sector.
• • We have verified contacts for 2 executives at Horizon Software.
• • 4,101 executive contacts are available in Ile-de-France.
• • Our database includes 201,468 c suite-level executives.

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Anton Passiouk CTO at Horizon Software

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Il Choi Senior Executive Vice President and Chief Digital Officer at 리치앤코

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Jeff Sekinger Chief Executive Officer at 0 Percent

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Rehana Farrell Chief Executive Officer at 100 Women In Finance

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Kellan Brown Chief Operating Officer / Chief Development Officer at 100 Women In Finance

Outreach Guidance — financial services Sector

Financial services executives like Sylvain Thieullent prioritize security, compliance (SOC 2, SOX), and integration with existing systems. Reference industry-specific regulatory requirements and provide case studies from peer institutions.

Sylvain Thieullent's Position in the MessageCEO Database

• •Sylvain Thieullent is 1 of 2 verified executive contacts we track at Horizon Software.
• •11,735 verified executive contacts in financial services are in the MessageCEO database.
• •4,045 verified executive contacts in Ile-de-France are in the database.
• •37 verified contacts work at financial services companies in the 91.0 employee range (same size as Horizon Software).

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 We do not publish personal addresses or sensitive identifiers.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 Sylvain Thieullent directly?

Sylvain Thieullent's verified email address is available to MessageCEO Pro subscribers. They currently serve as CEO at Horizon Software. Access direct contact info to skip gatekeepers and reach the decision maker.

What company does Sylvain Thieullent work for?

Sylvain Thieullent is CEO at Horizon Software, a company in the financial services sector with 91.0 employees. The company is based in Paris, Ile-de-France.

Can I pitch or sell to Sylvain Thieullent?

As CEO at Horizon Software, Sylvain Thieullent is a key decision-maker in the financial services sector. MessageCEO Pro gives you verified email to reach Sylvain Thieullent directly — ideal for B2B sales, partnerships, and executive recruiting.

What industry is Sylvain Thieullent in?

Sylvain Thieullent works in the financial services industry as CEO at Horizon Software. MessageCEO provides verified contact information for executives across all major industries.

Is Sylvain Thieullent's contact information verified?

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

Last updated: July 27, 2026