The company changed hands in 1954, when the Stroups’ daughter and son-in-law, Jane and George Koorsen, took over and continued the tradition of diligence in all facets of the business, keeping up the reputation for service and honesty. Incidentally, it was during this period that those recognizable yellow trucks made their first appearance, in 1963.

George and Jane’s son Randy Koorsen grew up in the business, helping however he could until in 1970 he officially began working for the company while attending college. Randy became president in 1984 and renamed the company Koorsen Protection Services, Inc.

Randy’s leadership brought tremendous growth to the company, expanding it into six states within the Midwest and Southeast while increasing the scope of service by acquiring security operations and adding fire products, sprinkler systems, and engineered fire suppression systems.

In 2004, the company became Koorsen Fire & Security to better reflect its wider focus. Koorsen now has 25+ locations and is a recognized leader in loss prevention. It has grown from that garage business to become one of the top five largest fire and security companies in the country, and it’s one of the only companies in the industry to provide clients of all sizes with total protection from one source.

Throughout the growth and change, Koorsen has stayed focused on reliability. Its employees maintain the highest levels of certifications so that they never fall short of providing customers with the right answers for their operations.
Koorsen’s reach has certainly increased, but its mission has not: Koorsen is dedicated to providing businesses and residential customers with products and systems that will safeguard them from loss and harm due to fire hazards and security concerns.