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.