Industrial Door Company was founded in 1974 by Gerald Sizer in Coon Rapids, Maryland. Sizer began by assembling garage doors in his own garage. He then founded the company with 20 employees, making residential and commercial garage doors, repairing broken ones, while providing efficient service and quality products .
In 1981 IDC received $120,000 in financing. The company proceeded to purchase Twin City Spring, and began the spring manufacturing division of the Company. In 2007 IDC acquired Holmes manufacturing in Tempe, Arizona, expanding the spring manufacturing division to the west coast. In 2011 IDC acquired another local garage door dealer in the Twin Cities. The company has grown steadily until today it employs a workforce of 171 and earns a revenue of $34 million.
IDC is an impressive company in a number of ways, and a model for how a small, straightforward business can flourish into a large, successful company in a relatively short time.
First of all the company found a good niche, then it built on that organically. A garage door is a common product, requiring special skills to manufacture, install, and repair. A company that does a good and efficient job in these areas has a good niche. They cannot be easily out-priced by mass producers, because their business involves customized products and hands on services requiring particular skill and know-how.
After succeeding locally with garage doors, IDC received relatively modest financing, which it used very effectively by expanding into spring production. This was a clever choice for expansion since springs are a major component for garage doors, which they were already making. They now produced easily transportable springs for garage door companies across the US, plus all kinds of other types of springs for other industrial use. They now have branches in Minnesota, Ohio, and Arizona, supplying industrial springs across the country. Meanwhile, the garage door department continued to grow locally, taking over another company in the Minneapolis area and increasing its local strength.