John Calabrese

John Calabrese serves as Chief Operating Officer at First Source. First Source operates in the staffing & recruiting sector with approximately 150.0 employees. The company is headquartered in New Hartford, New York. First Source generates annual revenue of 3587000.0.

Industry & Role Insights

• • MessageCEO tracks 2,963 executives in the staffing & recruiting sector.
• • 6,952 executive contacts are available in New York.
• • Our database includes 201,469 c suite-level executives.

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Joe Coletta CEO at 180 Engineering

RK

Ryan Kevelighan Chief Executive Officer at 1Medical

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Prateek Upadhyay Chief Operating Officer at 1 POINT SYSTEM LLC

LH

Larry Hayes Chief Executive Officer at 24HourNurse, LLC

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Emem Usen CEO / CVO at 25th and Staffing

Outreach Guidance — staffing & recruiting Sector

Executives like John Calabrese in the staffing & recruiting 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 First Source.

John Calabrese's Position in the MessageCEO Database

• •John Calabrese is 1 of 1 verified executive contact we track at First Source.
• •2,902 verified executive contacts in staffing & recruiting are in the MessageCEO database.
• •6,778 verified executive contacts in New York are in the database.
• •53 verified contacts work at staffing & recruiting companies in the 150.0 employee range (same size as First Source).

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 We do not publish personal addresses or sensitive identifiers.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 John Calabrese directly?

John Calabrese's verified email address is available to MessageCEO Pro subscribers. They currently serve as Chief Operating Officer at First Source. Access direct contact info to skip gatekeepers and reach the decision maker.

What company does John Calabrese work for?

John Calabrese is Chief Operating Officer at First Source, a company in the staffing & recruiting sector with 150.0 employees. The company is based in New Hartford, New York.

Can I pitch or sell to John Calabrese?

As Chief Operating Officer at First Source, John Calabrese is a key decision-maker in the staffing & recruiting sector. MessageCEO Pro gives you verified email to reach John Calabrese directly — ideal for B2B sales, partnerships, and executive recruiting.

What industry is John Calabrese in?

John Calabrese works in the staffing & recruiting industry as Chief Operating Officer at First Source. MessageCEO provides verified contact information for executives across all major industries.

Is John Calabrese's contact information verified?

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

Last updated: June 24, 2026