Three i Design, formerly known as Three I Engineering, is an architecture and engineering company that has been serving the needs of commercial, institutional, and industrial clients in the Tri-state area since 1976. Services include architecture, mechanical, electrical, civil and industrial engineering and land surveying. Three i Design is a full service A/E firm. We have provided engineering and architectural services for hospital facility engineers and maintenance professionals, contractors, insurance firms, attorneys, developers and government agencies at the federal, state and local levels. Please check out our new website at threeidesign.com.
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Three i Design Questions
The Three i Design annual revenue was $12.5 million in 2026.
48 people are employed at Three i Design.
Three i Design is based in Evansville, Indiana.
The NAICS codes for Three i Design are [541, 5413, 54, 54133].
The SIC codes for Three i Design are [87, 871].
Top Three i Design Employees
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Gordon Klaus
Principal, Director of Architectural Design at Three i Design
Evansville, IN, US24 -
Brad Schmitt
Business Development and Marketing Manager at Three i Design
Evansville, IN, US45+ -
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Robert Nelson
Senior Mechanical Engineer at Three i Design
Boonville, IN, US21 -
John Jaranowski
Electrical and Controls Engineer at Three i Design
Evansville, IN, US25+ -
Chris Wahl
Surveyor Manager at Three i Design
Evansville, IN, US1 -
Hogan Helms
Civil Engineer at Three i Design
Evansville, IN, US24 -
Bruce Woodruff
Senior Principal at Three i Design
Evansville, IN, US15+ -
David Orsburn
Senior Principal at Three i Design
Evansville, IN, US25+
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