Marco Antonio

Marco Antonio serves as CEO at Certisign. Certisign operates in the information technology & services sector with approximately 630.0 employees. The company is headquartered in Sao Paulo, State of Sao Paulo. Certisign generates annual revenue of 150000000.0.

Industry & Role Insights

• • MessageCEO tracks 50,503 executives in the information technology & services sector.
• • We have verified contacts for 2 executives at Certisign.
• • 3,750 executive contacts are available in State of Sao Paulo.
• • Our database includes 201,468 c suite-level executives.

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Julio Duram CTO at Certisign

MJ

Marvin Jo CTO at 위블링

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Robert Kim CEO, North America at 당근마켓

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Kyung Lim CTO at 인터파크

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Alex Ryu Chief Operating Officer, Supply Chain Solutions Group at 동양시스템즈(주)

Outreach Guidance — information technology & services Sector

Technology executives make decisions on infrastructure, tooling, and partnerships. When reaching out to Marco Antonio, lead with your value proposition relative to the stack they currently use. Generic pitches perform poorly; specific technical relevance is key.

Marco Antonio's Position in the MessageCEO Database

• •Marco Antonio is 1 of 2 verified executive contacts we track at Certisign.
• •49,754 verified executive contacts in information technology & services are in the MessageCEO database.
• •3,723 verified executive contacts in State of Sao Paulo are in the database.
• •121 verified contacts work at information technology & services companies in the 630.0 employee range (same size as Certisign).

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 We do not publish personal addresses or sensitive identifiers.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 Marco Antonio directly?

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

What company does Marco Antonio work for?

Marco Antonio is CEO at Certisign, a company in the information technology & services sector with 630.0 employees. The company is based in Sao Paulo, State of Sao Paulo.

Can I pitch or sell to Marco Antonio?

As CEO at Certisign, Marco Antonio is a key decision-maker in the information technology & services sector. MessageCEO Pro gives you verified email to reach Marco Antonio directly — ideal for B2B sales, partnerships, and executive recruiting.

What industry is Marco Antonio in?

Marco Antonio works in the information technology & services industry as CEO at Certisign. MessageCEO provides verified contact information for executives across all major industries.

Is Marco Antonio's contact information verified?

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

Last updated: July 27, 2026