The LSI Support Staff

At LSI, every one of us, take our positions here very seriously. We live by the attitude of doing our best in everything we do. That quality workmanship and service includes making sure that our students and our customers are 100% happy with each and every one of us, and that you leave here knowing that you can call on us for any needs in the future.

Executive Staff

Mark Miller
President / Owner

In the late 70's and early 80's Mark worked for his father at Sargent & Greenleaf then assisted his father with Lockmasters Inc. In 1984, Mark went to work for LaGard, Inc and U. S. Security Safe in their manufacturing and sales department - where he found his calling. Two short years later he returned to Lockmasters where he's been ever since. Mark purchased Lockmasters' wholesale division in 2005 and focused his expertise on becoming the industry's best manufacturer and supplier of locks, tools and equipment. In June 2013, Mark purchased Lockmasters Security Institute (LSI) once again bringing both organizations under one unified direction. Lockmasters, Inc. is truly your one stop source for the best locks, tools and education in the security industry.


Deanna DeBorde
Director of Education
DeannaDeborde@lockmasters.com
866.574.8724 ext: 352

Mrs. DeBorde is the primary corporate and public relations contact for LSI. As Director of Education she handles government and corporate contracting, curriculum development, scheduling, instructional resources, and educational standards to state and federal mandates.
Ms. DeBorde graduated from East TN State University in 1990 with a M.Ed.