Serhii Semko

Serhii Semko serves as Chief Technology Officer at OSSystem Ltd. OSSystem Ltd operates in the information technology & services sector with approximately 30.0 employees. The company is headquartered in New York, New York.

Industry & Role Insights

• • MessageCEO tracks 50,503 executives in the information technology & services sector.
• • We have verified contacts for 2 executives at OSSystem Ltd.
• • 6,952 executive contacts are available in New York.
• • Our database includes 201,469 c suite-level executives.

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OS

Oleh Sieroochenko CEO at OSSystem Ltd

MJ

Marvin Jo CTO at 위블링

RK

Robert Kim CEO, North America at 당근마켓

KL

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 Serhii Semko, lead with your value proposition relative to the stack they currently use. Generic pitches perform poorly; specific technical relevance is key.

Serhii Semko's Position in the MessageCEO Database

• •Serhii Semko is 1 of 2 verified executive contacts we track at OSSystem Ltd.
• •49,754 verified executive contacts in information technology & services are in the MessageCEO database.
• •6,778 verified executive contacts in New York are in the database.
• •806 verified contacts work at information technology & services companies in the 30.0 employee range (same size as OSSystem Ltd).

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 We do not publish personal addresses or sensitive identifiers.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 Serhii Semko directly?

Serhii Semko's verified email address is available to MessageCEO Pro subscribers. They currently serve as Chief Technology Officer at OSSystem Ltd. Access direct contact info to skip gatekeepers and reach the decision maker.

What company does Serhii Semko work for?

Serhii Semko is Chief Technology Officer at OSSystem Ltd, a company in the information technology & services sector with 30.0 employees. The company is based in New York, New York.

Can I pitch or sell to Serhii Semko?

As Chief Technology Officer at OSSystem Ltd, Serhii Semko is a key decision-maker in the information technology & services sector. MessageCEO Pro gives you verified email to reach Serhii Semko directly — ideal for B2B sales, partnerships, and executive recruiting.

What industry is Serhii Semko in?

Serhii Semko works in the information technology & services industry as Chief Technology Officer at OSSystem Ltd. MessageCEO provides verified contact information for executives across all major industries.

Is Serhii Semko's contact information verified?

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

Last updated: July 21, 2026