Kornel Duleba

Kornel Duleba serves as CEO at Harbingers. Harbingers operates in the marketing & advertising sector with approximately 120.0 employees. The company is headquartered in Krakow, Lesser Poland Voivodeship.

Industry & Role Insights

• • MessageCEO tracks 9,879 executives in the marketing & advertising sector.
• • 172 executive contacts are available in Lesser Poland Voivodeship.
• • 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

EN

Emily Nicholson Chief Operating Officer at 100 Pound Social

Outreach Guidance — marketing & advertising Sector

Executives like Kornel Duleba 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 Harbingers.

Kornel Duleba's Position in the MessageCEO Database

• •Kornel Duleba is 1 of 1 verified executive contact we track at Harbingers.
• •9,714 verified executive contacts in marketing & advertising are in the MessageCEO database.
• •169 verified executive contacts in Lesser Poland Voivodeship are in the database.
• •154 verified contacts work at marketing & advertising companies in the 120.0 employee range (same size as Harbingers).

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 We do not publish personal addresses or sensitive identifiers.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 Kornel Duleba directly?

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

What company does Kornel Duleba work for?

Kornel Duleba is CEO at Harbingers, a company in the marketing & advertising sector with 120.0 employees. The company is based in Krakow, Lesser Poland Voivodeship.

Can I pitch or sell to Kornel Duleba?

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

What industry is Kornel Duleba in?

Kornel Duleba works in the marketing & advertising industry as CEO at Harbingers. MessageCEO provides verified contact information for executives across all major industries.

Is Kornel Duleba's contact information verified?

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

Last updated: June 27, 2026