TMH Security is a Thomas Heffernan Company
Owned and Operated by a retired Police Lieutenant From the Detroit Area.



Trusted Security for Every Sector
Our services are trusted by:
Industrial and Manufacturing Facilities
Commercial Properties
Local and Federal Governments
Residential Communities
Retail Establishments
Executive Protection & Escort Services
We specialize in:

Executive Protection with Forward Routing

Armed Escort Services

Protection for Executive, Entertainment, Film, Automotive, and Diplomatic clients

Core Services Provided
Industry-Wide Coverage
We service any industry, no matter the size or scope. Our mission is to give you peace of mind—and we deliver. With over 30 years of experience across Metro Detroit, Flint, and Ypsilanti, TMH Security has a proven track record of excellence.


A Custom Approach for Every Client
TMH Security is dedicated to developing and implementing specialized security programs tailored to each client’s unique needs.
We combine
Professional Quality Services
Cost Efficiency
Exceptional Security Personnel
Industry-Leading Perimeter Security
Experienced Management
Our management team brings over 48 years of security management expertise to every client we serve. Request a consultation.