Andrew Sumitani

Andrew Sumitani serves as COO and Head of Marketing at Poseidon. Poseidon operates in the information technology & services sector with approximately 49.0 employees. The company is headquartered in Seattle, Washington.

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

Andrew Sumitani's Position in the MessageCEO Database

• •Andrew Sumitani is 1 of 1 verified executive contact we track at Poseidon.
• •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.
• •430 verified contacts work at information technology & services companies in the 49.0 employee range (same size as Poseidon).

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 We do not publish personal addresses or sensitive identifiers.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

Andrew Sumitani's verified email address is available to MessageCEO Pro subscribers. They currently serve as COO and Head of Marketing at Poseidon. Access direct contact info to skip gatekeepers and reach the decision maker.

What company does Andrew Sumitani work for?

Andrew Sumitani is COO and Head of Marketing at Poseidon, a company in the information technology & services sector with 49.0 employees. The company is based in Seattle, Washington.

Can I pitch or sell to Andrew Sumitani?

As COO and Head of Marketing at Poseidon, Andrew Sumitani is a key decision-maker in the information technology & services sector. MessageCEO Pro gives you verified email to reach Andrew Sumitani directly — ideal for B2B sales, partnerships, and executive recruiting.

What industry is Andrew Sumitani in?

Andrew Sumitani works in the information technology & services industry as COO and Head of Marketing at Poseidon. MessageCEO provides verified contact information for executives across all major industries.

Is Andrew Sumitani's contact information verified?

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

Last updated: July 29, 2026