Guillaume Lopes

Guillaume Lopes serves as CTO / Senior Penetration Tester at RandoriSec. RandoriSec operates in the information technology & services sector with approximately 38.0 employees. The company is headquartered in Lisbon, Lisbon.

Industry & Role Insights

• • MessageCEO tracks 50,503 executives in the information technology & services sector.
• • 748 executive contacts are available in Lisbon.
• • Our database includes 201,469 c suite-level executives.

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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)

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Wonho Kang 라포테이블(팔도감) | CEO · Product Lead at 라포랩스(퀸잇)

Outreach Guidance — information technology & services Sector

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

Guillaume Lopes's Position in the MessageCEO Database

• •Guillaume Lopes is 1 of 1 verified executive contact we track at RandoriSec.
• •49,754 verified executive contacts in information technology & services are in the MessageCEO database.
• •738 verified executive contacts in Lisbon are in the database.
• •587 verified contacts work at information technology & services companies in the 38.0 employee range (same size as RandoriSec).

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 We do not publish personal addresses or sensitive identifiers.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 Guillaume Lopes directly?

Guillaume Lopes's verified email address is available to MessageCEO Pro subscribers. They currently serve as CTO / Senior Penetration Tester at RandoriSec. Access direct contact info to skip gatekeepers and reach the decision maker.

What company does Guillaume Lopes work for?

Guillaume Lopes is CTO / Senior Penetration Tester at RandoriSec, a company in the information technology & services sector with 38.0 employees. The company is based in Lisbon, Lisbon.

Can I pitch or sell to Guillaume Lopes?

As CTO / Senior Penetration Tester at RandoriSec, Guillaume Lopes is a key decision-maker in the information technology & services sector. MessageCEO Pro gives you verified email to reach Guillaume Lopes directly — ideal for B2B sales, partnerships, and executive recruiting.

What industry is Guillaume Lopes in?

Guillaume Lopes works in the information technology & services industry as CTO / Senior Penetration Tester at RandoriSec. MessageCEO provides verified contact information for executives across all major industries.

Is Guillaume Lopes's contact information verified?

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

Last updated: July 21, 2026