Ranking the country's 20 Largest Conveyor Carwash Chains as listed in Professional Carwashing & Detailing Magazine (June 2010). 

  Car Wash Name Headquarters Locations Website DRB Systems
Customer
1 Wash Depot Malden, MA 76 www.cleancarfeeling.com DRB Customer = Yes
2 Mister Car Wash Tuscon, AZ 65 www.mistercarwash.com DRB Customer = Yes
3 Autobell Car Wash Charlotte, NC 58 www.autobell.com DRB Customer = Yes
4 Mike's Express Car Wash Indianapolis, IN 37 www.mikescarwash.com DRB Customer = Yes
5 Delta Sonic Buffalo, NY 28 www.deltasoniccarwash.com DRB Customer = Yes
6 Goo Goo Car Wash Columbus, GA 28 www.googoocarwash.com  
7 Original $2 Car Wash Livonia, MI 28    
8 Terrible Herbst Las Vegas, NV 28 www.terribleherbst.com DRB Customer = Yes
9 Octopus Car Wash Albuquerque, NM 24 www.octopuscarwash.com DRB Customer = Yes
10 Drive Clean North Little Rock, AR 22 www.boomerangcarwash.com  
11 Regal Auto Wash Scottsdale, AZ 20 www.regalautowash.com DRB Customer = Yes
12 Wash Tub Car Wash San Antonio, TX 20 www.washtub.com DRB Customer = Yes
13 American Auto Wash, Inc. Malvern, PA 20 www.gasnwash.com DRB Customer = Yes
14 Brown Bear Car Wash Seattle, WA 20 www.brownbear.com  
15 Express Car Wash Deerfield, FL 18 www.theexpresscarwash.com DRB Customer = Yes
16 Splash Car Wash Stamford, CT 18 www.splashcarwashes.com DRB Customer = Yes
17 Waterway Gas & Wash Co. St. Louis, MO 18 www.waterway.com DRB Customer = Yes
18 Golden Nozzle Car Wash Springfield, MA 16 www.flroberts.com DRB Customer = Yes
19 Kaady Car Wash Portland, OR 16 www.kaady.com  
20 Mr Clean Car Wash Duluth, GA 16 www.mrcleancarwash.com DRB Customer = Yes