Jay Hwan

Jay Hwan serves as CEO at Day One Agency. Day One Agency operates in the marketing & advertising sector with approximately 240.0 employees. The company is headquartered in Paris, Ile-de-France. Day One Agency generates annual revenue of 4619000.0.

Industry & Role Insights

• • MessageCEO tracks 9,879 executives in the marketing & advertising sector.
• • 4,101 executive contacts are available in Ile-de-France.
• • Our database includes 201,469 c suite-level executives.

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JV

Jose Vivar Group CTO-CIO at 014 Media

DA

David Amoros CEO, Creative Director at 023. Think. Create. Produce.

DP

David Puig CEO, Creative Director at 023. Think. Create. Produce.

MD

Mike Davison Group CEO at 1000heads

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Emily Nicholson Chief Operating Officer at 100 Pound Social

Outreach Guidance — marketing & advertising Sector

Executives like Jay Hwan in the marketing & advertising 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 Day One Agency.

Jay Hwan's Position in the MessageCEO Database

• •Jay Hwan is 1 of 1 verified executive contact we track at Day One Agency.
• •9,714 verified executive contacts in marketing & advertising are in the MessageCEO database.
• •4,045 verified executive contacts in Ile-de-France are in the database.
• •53 verified contacts work at marketing & advertising companies in the 240.0 employee range (same size as Day One Agency).

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 We do not publish personal addresses or sensitive identifiers.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 Jay Hwan directly?

Jay Hwan's verified email address is available to MessageCEO Pro subscribers. They currently serve as CEO at Day One Agency. Access direct contact info to skip gatekeepers and reach the decision maker.

What company does Jay Hwan work for?

Jay Hwan is CEO at Day One Agency, a company in the marketing & advertising sector with 240.0 employees. The company is based in Paris, Ile-de-France.

Can I pitch or sell to Jay Hwan?

As CEO at Day One Agency, Jay Hwan is a key decision-maker in the marketing & advertising sector. MessageCEO Pro gives you verified email to reach Jay Hwan directly — ideal for B2B sales, partnerships, and executive recruiting.

What industry is Jay Hwan in?

Jay Hwan works in the marketing & advertising industry as CEO at Day One Agency. MessageCEO provides verified contact information for executives across all major industries.

Is Jay Hwan's contact information verified?

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

Last updated: July 22, 2026