Air & Waste Management Association Air-Conditioning Engineers
Associated Builders & Contractors
Associated General Contractors
Association of Iron and Steel Engineers
Cast Iron Soil Pipe Institute
Construction Contractors Alliance
Construction Innovation Forum
Construction Specifications Institute
Contractors 2000
Copper Development Association
Dan Holohan Inc.
Design-Build Institute of America
Ductile Iron Pipe Research Association
Environmental Protection Agency
Factory Mutual
Flex Fire Protection Design
International Cost Engineering Council
International Federation of Consulting Engineers (FIDIC)
Mechanical Contractors Association of America
National Association of Homebuilders
National Association of Oil Heating Service Managers
National Association of Plumbing-Heating-Cooling Contractors
National Fire Protection Association
National Fire Sprinkler Association
National Kitchen & Bath Associaton
National Society of Professional Engineers
Plumbing-Heating-Cooling Information Bureau
Plumbing & Drainage Institute
Plumbing Manufacturers Institute
Quality Service Contractors
Residential Fire Safety Institute
Underwriters Laboratories
United Association (Plumbers & Pipefitters Union)
Union Affiliated Contractors (UAC)
Water Quality Association

Trade Publications

PHC Profit Report
PM Engineer
All BNP Publications

Consolidator Corner

Blue Dot
Comfort Systems USA
Group Maintenance America Corp.
R.S. Andrews
Service Experts
ServiceMaster
U.S. Filter

More Plumbing Research

Area 51
Comanche Brilliance
The Plumber.com
The Plumbing Web
Wet Design

Industry Web sites

PlumbingOnline

A.O. Smith
AT Plastics
Accubid
Arcan Enterprises
Argo
Better Way Inc.
Bradford White
Brass Craft
Buderus
Central Sprinkler
Chevrolet
Clamp-All
Cloversoft
Coastal Computer Corp.
Computer Processing
Conbraco
Construction Zone
Constructware
ContractorSurplus.Com
Dynatech
Ecoflex
Eemax
Estimation
Federal Process Corp.
Freitas Industries Inc.
Gastite
Gem Sprinkler Co.
Grice Engineering
Gull Industries
Hackney & Sons Inc.
Halsey Taylor
Hartell Pumps
Heatlink
Hodes Co.
Jay R. Smith Mfg. Co.
J.T. Estimating LLC
Kitec
KRS Enterprises Inc.
Lawler Valve
Leonard Valve
Liberty Pumps
Lochinvar
LP International Inc.
M&S Valves
Microengineering
Mifab
Pacific Laser Systems
Peerless Heater Co.
Perfection Corp.
Pipe-Tytes Inc.
Precision Land
ProTech Systems
Quote Software Inc.
RTI
Reading
Reed Manufacturing Co.
Ridge Tool Co.
Rittling
Runtal
Sioux Chief
Slant/Fin
Smith Environmental Products
Sparco Inc.
Speedway Supplies
Stadler-Viega
Star Sprinkler
Symmons
Syncroflo
Taco
Tara Corp.
Tekmar Controls
Total Service - Accounting and Dispatching Software
Triad Boiler Systems, Inc.
Tru-Flex
Utility Chemicals
W/C Technology Corp.
Warmrite
Waterless
Weil-Mclain
Wirsbo
Wolverine Brass

Code Organizations

Building Officials & Code Administrators International (BOCA)
International Association of Plumbing & Mechanical Officials (IAPMO)
International Code Council (ICC)
International Conference of Building Officials (ICBO)
Southern Building Code Congress International (SBCCI)