Tec Inc. is a professional corporation completing mechanical, electrical, plumbing engineering services for the AEC industry. Tec was founded by Terrance M. Kilbourne and Anton J. Eichmuller  in 1983.  A re-imaging campaign included the company changing its name to Tec Inc. Engineering & Design.

Tec began with a staff of two, primarily providing electrical engineering services. Within 1-year the firm had grown to a staff of nine with the added capability of providing mechanical engineering services. Today, Tec has five partners and 37 staff in three locations providing electrical & mechanical engineering, lighting design and technology design services for commercial, industrial, and institutional facilities throughout the United States.

In May of 1986 the firm moved from its original offices in Willoughby to facilities at Center Plaza South, Eastlake, Ohio. In 1989, Tec converted a warehouse into what is now our headquarters at 33851 Curtis Boulevard, Eastlake, Ohio. In 1995 this office space was nearly doubled through a major remodeling and expansion project.  The first branch office opened in Columbus, Ohio in the fall of 2005.  In 2007 Tec completed the build out of about 2500 sq. ft. of new space in Eastlake including: a new office, training room, increased storage, as well as improved circulation. 

In 2008 Tec opened an office in Reynoldsburg, and eastern suburb of Columbus. Initially it started with our professional lighting designer, Ardra Zinkon, with the hope to add engineers to office. Later Tec added a Director of Client Development in Columbus. 

In December 2010 Tec completed it's latest renovation, adding much needed restrooms along with a multi-purpose lunchroom.

In 2013 Tec split off the professional lighting design practice, and formed a new company, Tec Studio Inc. based on the east side of Columbus, Ohio. The studio is a certified Women's Business Enterprise (WBENC). Ardra Zinkon, IALD, MIES is the president and Director of Lighting Design. Tec Studio Inc. has completed award winning projects across the country. 

In 2014 office renovations included the addition semi-private offices for managers. 

Tec finally added two mechanical engineers to our Columbus office, now shared with Tec Studio Inc. Still trying to grow our presence in Columbus, after a year courtship, W.E. Monks & Co. Engineers merged with Tec Inc. Engineering & Design in 2016. Tec Inc. has moved into Monks' office at 3073 N. High Street. Tec Studio remains in Reynoldsburg.