Landmark Engineering, Inc. (LEI) was founded October 1, 2004 by Thaddaeus J. Lucas, PE, PLS. Thad purchased an existing company by the name of Petty & Associates, Inc., which had been in business in the Bowling Green area since 1985. Since that time Thad and his staff have worked hard to become one of the premiere engineering and land surveying companies in South Central Kentucky.

In December 2006, LEI acquired Van Meter Engineering, Inc., another local engineering and land surveying company. Van Meter had been in business for 24 years.


LEI adheres to strict business principals. Our policies deal with honesty, trust, promptness, courtesy, and confidentiality. We expect the same high standards of our employees and know it is our responsibility to provide the necessary training and mentoring to help them develop.

On a more fundamental level, it is our intention to anchor these principals on a foundation that is centered first on the lordship and sovereignty of Jesus Christ, second on the importance of Family and family values, and third on the spirit and strength of local community. We strive to make these principals evident and realized in our daily interactions with clients, employees, governmental authorities, and to all others with whom we come in contact.


To gain the respect of our clients by helping them achieve their project goals in a timely and professional manner. Our foremost goal is to produce a high quality professional product for our clients.      


Thaddaeus J. Lucas PE, PLS

Owner, President

Shaun G. Foley PLS

Surveying Manager

Marianna E. Lucas

HR Manager, Accounting

Susan K. Young

Office Manager