Claude Sieber

Claude Sieber serves as CEO at Soreco HR AG. Soreco HR AG operates in the information technology & services sector with approximately 30.0 employees. The company is headquartered in Schwerzenbach, Zurich.

Industry & Role Insights

• • MessageCEO tracks 50,503 executives in the information technology & services sector.
• • 1,552 executive contacts are available in Zurich.
• • 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 Claude Sieber, lead with your value proposition relative to the stack they currently use. Generic pitches perform poorly; specific technical relevance is key.

Claude Sieber's Position in the MessageCEO Database

• •Claude Sieber is 1 of 1 verified executive contact we track at Soreco HR AG.
• •49,754 verified executive contacts in information technology & services are in the MessageCEO database.
• •1,533 verified executive contacts in Zurich are in the database.
• •806 verified contacts work at information technology & services companies in the 30.0 employee range (same size as Soreco HR AG).

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 We do not publish personal addresses or sensitive identifiers.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 May 2026.

How do I reach Claude Sieber directly?

Claude Sieber's verified email address is available to MessageCEO Pro subscribers. They currently serve as CEO at Soreco HR AG. Access direct contact info to skip gatekeepers and reach the decision maker.

What company does Claude Sieber work for?

Claude Sieber is CEO at Soreco HR AG, a company in the information technology & services sector with 30.0 employees. The company is based in Schwerzenbach, Zurich.

Can I pitch or sell to Claude Sieber?

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

What industry is Claude Sieber in?

Claude Sieber works in the information technology & services industry as CEO at Soreco HR AG. MessageCEO provides verified contact information for executives across all major industries.

Is Claude Sieber's contact information verified?

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

Last updated: May 31, 2026