Don Decelles

Don Decelles serves as Managing Partner & CEO at MarketSphere. MarketSphere operates in the venture capital & private equity sector with approximately 77.0 employees. The company is headquartered in Overland Park, Kansas. MarketSphere generates annual revenue of 18014000.0.

Industry & Role Insights

• • MessageCEO tracks 865 executives in the venture capital & private equity sector.
• • 300 executive contacts are available in Kansas.
• • Our database includes 201,469 c suite-level executives.

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Vatsal Kanakiya Chief Executive Officer at 100X.VC

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Christian Dengler CFO & Operating Partner at 10x Founders

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Adriana Tortajada CEO & Managing Partner at 1200 VC

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Bikesh Lakhmichand CEO at 1337 Ventures

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Justin Greenstein Chief Executive Officer at 1835i

Outreach Guidance — venture capital & private equity Sector

Executives like Don Decelles in the venture capital & private equity sector receive targeted outreach from sales teams, recruiters, and investors. To stand out, personalize your message with industry-specific context and a clear, specific value proposition relevant to their role at MarketSphere.

Don Decelles's Position in the MessageCEO Database

• •Don Decelles is 1 of 1 verified executive contact we track at MarketSphere.
• •842 verified executive contacts in venture capital & private equity are in the MessageCEO database.
• •285 verified executive contacts in Kansas are in the database.
• •4 verified contacts work at venture capital & private equity companies in the 77.0 employee range (same size as MarketSphere).

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 We do not publish personal addresses or sensitive identifiers.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

How do I reach Don Decelles directly?

Don Decelles's verified email address is available to MessageCEO Pro subscribers. They currently serve as Managing Partner & CEO at MarketSphere. Access direct contact info to skip gatekeepers and reach the decision maker.

What company does Don Decelles work for?

Don Decelles is Managing Partner & CEO at MarketSphere, a company in the venture capital & private equity sector with 77.0 employees. The company is based in Overland Park, Kansas.

Can I pitch or sell to Don Decelles?

As Managing Partner & CEO at MarketSphere, Don Decelles is a key decision-maker in the venture capital & private equity sector. MessageCEO Pro gives you verified email to reach Don Decelles directly — ideal for B2B sales, partnerships, and executive recruiting.

What industry is Don Decelles in?

Don Decelles works in the venture capital & private equity industry as Managing Partner & CEO at MarketSphere. MessageCEO provides verified contact information for executives across all major industries.

Is Don Decelles's contact information verified?

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

Last updated: June 27, 2026