John Jemsek

John Jemsek serves as Chief Technology Officer at POWWR. POWWR operates in the information technology & services sector with approximately 130.0 employees. The company is headquartered in Seattle, Washington. POWWR generates annual revenue of 2400000.0.

Industry & Role Insights

• • MessageCEO tracks 50,503 executives in the information technology & services sector.
• • 2,277 executive contacts are available in Washington.
• • Our database includes 201,468 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 John Jemsek, lead with your value proposition relative to the stack they currently use. Generic pitches perform poorly; specific technical relevance is key.

John Jemsek's Position in the MessageCEO Database

• •John Jemsek is 1 of 1 verified executive contact we track at POWWR.
• •49,754 verified executive contacts in information technology & services are in the MessageCEO database.
• •2,137 verified executive contacts in Washington are in the database.
• •1,020 verified contacts work at information technology & services companies in the 130.0 employee range (same size as POWWR).

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 We do not publish personal addresses or sensitive identifiers.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 John Jemsek directly?

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

What company does John Jemsek work for?

John Jemsek is Chief Technology Officer at POWWR, a company in the information technology & services sector with 130.0 employees. The company is based in Seattle, Washington.

Can I pitch or sell to John Jemsek?

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

What industry is John Jemsek in?

John Jemsek works in the information technology & services industry as Chief Technology Officer at POWWR. MessageCEO provides verified contact information for executives across all major industries.

Is John Jemsek's contact information verified?

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

Last updated: July 29, 2026