Hydro-Klean is the biggest rival of Gem Supply. Hydro-Klean was founded in 1976, and its headquarters is in Des Moines, Iowa. Hydro-Klean operates in the Commercial Cleaning Services industry. Hydro-Klean has 6 more employees than Gem Supply.
Gem Supply VS Southern Janitor Supply
Southern Janitor Supply is Gem Supply's #3 rival. Southern Janitor Supply was founded in 1959 in Melbourne, Florida. Southern Janitor Supply is in the Commercial Cleaning Services field. Southern Janitor Supply generates $7.9M more revenue than Gem Supply.