John Stephenson

John Stephenson serves as Chief Technology Officer at Open GI. Open GI operates in the information technology & services sector with approximately 470.0 employees. The company is headquartered in Cardiff, Wales. Open GI generates annual revenue of 110000000.0.

Industry & Role Insights

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

John Stephenson's Position in the MessageCEO Database

• •John Stephenson is 1 of 1 verified executive contact we track at Open GI.
• •49,754 verified executive contacts in information technology & services are in the MessageCEO database.
• •87 verified executive contacts in Wales are in the database.
• •140 verified contacts work at information technology & services companies in the 470.0 employee range (same size as Open GI).

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 We do not publish personal addresses or sensitive identifiers.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

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

What company does John Stephenson work for?

John Stephenson is Chief Technology Officer at Open GI, a company in the information technology & services sector with 470.0 employees. The company is based in Cardiff, Wales.

Can I pitch or sell to John Stephenson?

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

What industry is John Stephenson in?

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

Is John Stephenson's contact information verified?

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

Last updated: July 24, 2026