| AHR Expo (International Air Conditioning-Heating-Refrigerating Exposition) | | 203-221-9232 | www.ahrexpo.com | Trade show |
| American Supply Association | 1200 N. Arlington Heights Rd. Suite 150, Itasca, IL 60143 | 630-467-0000 | www.asa.net | Professional Association |
| American Water Heater Company | 500 Princeton Rd., Johnson City, TN 37601 | 423-283-8000 | www.americanwaterheater.com | Manufacturer |
| Ashland Pump | 1899 Cottage St., Ashland, OH 44805 | 855-281-6830, | www.ashlandpump.com | Manufacturer |
| ASPE (American Society of Plumbing Engineers) | 2980 S. River Rd., Des Plaines, IL 60018 | 847-296-0002 | www.aspe.org | Professional Association |
| Bootz Plumbingware | Box 18010, Evansville, IN 47719 | 812-423-5401 | www.bootz.com | Manufacturer |
| Bosch Thermotechnology | 50 Wentworth Ave., Londonberry, NH 03053 | 603-552-1100 | www.bosch-thermotechnology.com | Manufacturer |
| Bradford White | 725 Talamore Dr., Ambler, PA 19002 | 215-641-9400 | www.bradfordwhite.com | Manufacturer |
| BrassCraft | 39600 Orchard Hill Place, Novi, MI 48375 | 248-305-6000 | www.brasscraft.com | Manufacturer |
