Greg Cosko

Greg Cosko serves as President & CEO at Hathaway Dinwiddie. Hathaway Dinwiddie operates in the construction sector with approximately 530.0 employees. The company is headquartered in San Francisco, California. Hathaway Dinwiddie generates annual revenue of 50000000.0.

Industry & Role Insights

• • MessageCEO tracks 3,496 executives in the construction sector.
• • We have verified contacts for 2 executives at Hathaway Dinwiddie.
• • 13,743 executive contacts are available in California.
• • Our database includes 201,469 c suite-level executives.

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Kevin O'Riordan President & CEO at Hathaway Dinwiddie

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Nilla Ruggiero Chief Technology Officer at 011h

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Fred Grove Chief Executive Officer at 123 Exteriors, Inc

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Joe Stackhouse Chief Executive Officer at 1-800 Hansons, LLC

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Benjamin Simon Chief Technical Officer at 1800Remodel.com

Outreach Guidance — construction Sector

Executives like Greg Cosko in the construction 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 Hathaway Dinwiddie.

Greg Cosko's Position in the MessageCEO Database

• •Greg Cosko is 1 of 2 verified executive contacts we track at Hathaway Dinwiddie.
• •3,191 verified executive contacts in construction are in the MessageCEO database.
• •12,901 verified executive contacts in California are in the database.
• •20 verified contacts work at construction companies in the 530.0 employee range (same size as Hathaway Dinwiddie).

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 We do not publish personal addresses or sensitive identifiers.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 Greg Cosko directly?

Greg Cosko's verified email address is available to MessageCEO Pro subscribers. They currently serve as President & CEO at Hathaway Dinwiddie. Access direct contact info to skip gatekeepers and reach the decision maker.

What company does Greg Cosko work for?

Greg Cosko is President & CEO at Hathaway Dinwiddie, a company in the construction sector with 530.0 employees. The company is based in San Francisco, California.

Can I pitch or sell to Greg Cosko?

As President & CEO at Hathaway Dinwiddie, Greg Cosko is a key decision-maker in the construction sector. MessageCEO Pro gives you verified email to reach Greg Cosko directly — ideal for B2B sales, partnerships, and executive recruiting.

What industry is Greg Cosko in?

Greg Cosko works in the construction industry as President & CEO at Hathaway Dinwiddie. MessageCEO provides verified contact information for executives across all major industries.

Is Greg Cosko's contact information verified?

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

Last updated: July 22, 2026