Guillaume Castel

Guillaume Castel serves as CEO at PerfectServe. PerfectServe operates in the hospital & health care sector with approximately 320.0 employees. The company is headquartered in Washington, District of Columbia. PerfectServe generates annual revenue of 48500000.0. To date, PerfectServe has raised 32900000.0 in total funding, with the most recent round being Series D.

Industry & Role Insights

• • MessageCEO tracks 6,447 executives in the hospital & health care sector.
• • 1,800 executive contacts are available in District of Columbia.
• • Our database includes 201,469 c suite-level executives.

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Donna Rey Executive Director & CEO at 1199SEIU National Benefit Fund

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Amin Shivji Chief Executive Officer at 123Dentist

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Jeff Leger Chief Executive Officer (incoming) at 123Dentist

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Chandan Advani Co - Chief Executive Officer at 123Dentist

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Stuart Tait Chief Executive Officer at 13SICK National Home Doctor

Outreach Guidance — hospital & health care Sector

Executives like Guillaume Castel in the hospital & health care 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 PerfectServe.

Guillaume Castel's Position in the MessageCEO Database

• •Guillaume Castel is 1 of 1 verified executive contact we track at PerfectServe.
• •6,187 verified executive contacts in hospital & health care are in the MessageCEO database.
• •1,687 verified executive contacts in District of Columbia are in the database.
• •32 verified contacts work at hospital & health care companies in the 320.0 employee range (same size as PerfectServe).

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 We do not publish personal addresses or sensitive identifiers.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 Guillaume Castel directly?

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

What company does Guillaume Castel work for?

Guillaume Castel is CEO at PerfectServe, a company in the hospital & health care sector with 320.0 employees. The company is based in Washington, District of Columbia.

Can I pitch or sell to Guillaume Castel?

As CEO at PerfectServe, Guillaume Castel is a key decision-maker in the hospital & health care sector. MessageCEO Pro gives you verified email to reach Guillaume Castel directly — ideal for B2B sales, partnerships, and executive recruiting.

What industry is Guillaume Castel in?

Guillaume Castel works in the hospital & health care industry as CEO at PerfectServe. MessageCEO provides verified contact information for executives across all major industries.

Is Guillaume Castel's contact information verified?

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

Last updated: July 24, 2026