Many clients are trusting their most valuable possessions to King Alarm Company.

Builders -
- Chapel Point Development Corporation
- Fallon Homes
- Classic Design Homes
- BCS Home Inc.
- Whiting-Turner Construction Company
- WCS Construction
- Scorpio Construction
- Dahn Corporation
- K + H Electric
 

Businesses -

- Smithsonian Enviornmental Research Center
- Linen n Things
- Baskin Robbins
- Donald B Rice Tire Company
- Drakes Place Barber Salon
- DunKirk Chevron
- Gateway Tractor
- Mini U Storage
- Cluck U Chicken
- Esco Electric
- Maertens Fine Jewelry
- Tommys Auto Body
- Gah-Ram Restaurant
- Capital Upholstery 
- Leafies Crab and Seafood
- International Christian Fellowship
- Prestige Collision Auto
- Patuxent Environmental Group
- Colonial Printing
- G-Town Fashions
- Kingdom Savings
- Draco Nails 
- Butler Appliances