Hans Siefker

Hans Siefker serves as Principal Chief Executive Officer at Greiner. Greiner operates in the construction sector with approximately 120.0 employees. The company is headquartered in Minneapolis, Minnesota. Greiner generates annual revenue of 25000000.0.

Industry & Role Insights

• • MessageCEO tracks 3,496 executives in the construction sector.
• • 1,832 executive contacts are available in Minnesota.
• • Our database includes 201,468 c suite-level executives.

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Nilla Ruggiero Chief Technology Officer at 011h

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Fred Grove Chief Executive Officer at 123 Exteriors, Inc

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Joe Stackhouse Chief Executive Officer at 1-800 Hansons, LLC

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Benjamin Simon Chief Technical Officer at 1800Remodel.com

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Steve Sorkin CEO at 24 Restore, A Cotton Company at 24 Restore

Outreach Guidance — construction Sector

Executives like Hans Siefker in the construction 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 Greiner.

Hans Siefker's Position in the MessageCEO Database

• •3,191 verified executive contacts in construction are in the MessageCEO database.
• •1,716 verified executive contacts in Minnesota are in the database.
• •64 verified contacts work at construction companies in the 120.0 employee range (same size as Greiner).

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 We do not publish personal addresses or sensitive identifiers.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

Hans Siefker's verified email address is available to MessageCEO Pro subscribers. They currently serve as Principal Chief Executive Officer at Greiner. Access direct contact info to skip gatekeepers and reach the decision maker.

What company does Hans Siefker work for?

Hans Siefker is Principal Chief Executive Officer at Greiner, a company in the construction sector with 120.0 employees. The company is based in Minneapolis, Minnesota.

Can I pitch or sell to Hans Siefker?

As Principal Chief Executive Officer at Greiner, Hans Siefker is a key decision-maker in the construction sector. MessageCEO Pro gives you verified email to reach Hans Siefker directly — ideal for B2B sales, partnerships, and executive recruiting.

What industry is Hans Siefker in?

Hans Siefker works in the construction industry as Principal Chief Executive Officer at Greiner. MessageCEO provides verified contact information for executives across all major industries.

Is Hans Siefker's contact information verified?

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

Last updated: July 28, 2026