Guillermo Fellenberg

Guillermo Fellenberg serves as CTO Latinamerica y españa at iCrossing. iCrossing operates in the marketing & advertising sector with approximately 440.0 employees. The company is headquartered in Buenos Aires, Autonomous City of Buenos Aires. iCrossing generates annual revenue of 255000000.0. To date, iCrossing has raised 123000000.0 in total funding, with the most recent round being Series F.

Industry & Role Insights

• • MessageCEO tracks 9,879 executives in the marketing & advertising sector.
• • We have verified contacts for 2 executives at iCrossing.
• • 190 executive contacts are available in Autonomous City of Buenos Aires.
• • 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 Guillermo Fellenberg 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 iCrossing.

Guillermo Fellenberg's Position in the MessageCEO Database

• •Guillermo Fellenberg is 1 of 1 verified executive contact we track at iCrossing.
• •9,714 verified executive contacts in marketing & advertising are in the MessageCEO database.
• •189 verified executive contacts in Autonomous City of Buenos Aires are in the database.
• •11 verified contacts work at marketing & advertising companies in the 440.0 employee range (same size as iCrossing).

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 We do not publish personal addresses or sensitive identifiers.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 Guillermo Fellenberg directly?

Guillermo Fellenberg's verified email address is available to MessageCEO Pro subscribers. They currently serve as CTO Latinamerica y españa at iCrossing. Access direct contact info to skip gatekeepers and reach the decision maker.

What company does Guillermo Fellenberg work for?

Guillermo Fellenberg is CTO Latinamerica y españa at iCrossing, a company in the marketing & advertising sector with 440.0 employees. The company is based in Buenos Aires, Autonomous City of Buenos Aires.

Can I pitch or sell to Guillermo Fellenberg?

As CTO Latinamerica y españa at iCrossing, Guillermo Fellenberg is a key decision-maker in the marketing & advertising sector. MessageCEO Pro gives you verified email to reach Guillermo Fellenberg directly — ideal for B2B sales, partnerships, and executive recruiting.

What industry is Guillermo Fellenberg in?

Guillermo Fellenberg works in the marketing & advertising industry as CTO Latinamerica y españa at iCrossing. MessageCEO provides verified contact information for executives across all major industries.

Is Guillermo Fellenberg's contact information verified?

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

Last updated: June 28, 2026