Sustaining Members


The following is a list of ASSE Sustaining Members and a link to their websites. Companies without a web address are listed with a mailing address.

Click here to be directed to a page that lists each Manufacturer's ASSE Seal Listings.

  • Val-Matic Valve
  • Florida Medical Gas
  • Wilkins / A Division of Zurn
  • Aqua Shield
  • Armstrong Hot Water Group
  • Astra Industrial Services, 3525 Old Conejo Rd, Suite 104, Newbury Park, CA, 91320-2190
  • NITC
  • BAVCO
  • M.I.E. Services, Inc.
  • Chicago Backflow
  • G & C Enclosures, Inc.
  • Chicago Faucet / A Geberit Company
  • Apollo Valves / Conbraco Industries
  • Environmental Testing Services, Inc.
  • FM Approvals
  • Ford Meter Box Company, Inc
  • Kim Technology & Systems Engineering PTE, Ltd
  • Mueller Company
  • HydroCorp
  • Sioux Chief Mfg. Co. Inc.
  • T & S Brass & Bronze Works, Inc.
  • US Analytical Laboratories
  • University of Southern California / FCCCHR
  • NSF-WRc Ltd
  • Woodford Mfg. Co.
  • Stevens Institute of Technology
  • MCA of Northeastern PA, 1751 Lamplight Circle, Middletown, PA, 17057
  • Legend
  • LU 60 / Plumbers & Steamfitters
  • RectorSeal, LLC
  • The Stero Company, 3200 Lakeville Highway, Petaluma, CA, 94954
  • Kent RO Systems Ltd.
  • Test Gauge & Backflow Supply Inc.
  • Active Carbon India Pvt. Ltd.
  • Studor Limited
  • Acute Medical Gas Services
  • Sloan Valve Company
  • Sloan Flushmate
  • IAPMO Research & Testing Laboratory
  • In-Sink-Erator
  • NSF International
  • Precision Plumbing Products
  • QAI Laboratories
  • Kohler Company
  • MIFAB, Inc.
  • Moen, Inc.
  • Holby Valve Inc.
  • Cash Acme / Reliance Worldwide Corp
  • Cast Iron Soil Pipe Institute
  • Plumbers Without Borders
  • EMGSI
  • Bradley Corporation
  • CSA Group- Canada
  • CSA Group
  • Medical Gas Certifications Inc., PO Box 560042, Orlando, FL, 32856
  • Medical Gas Training & Consulting, LLC
  • American Standard
  • Indian Trail Plumbing
  • Kiwa Nederland B.V., Sir Winston Churchilllan 273, Rijswijk, , 2288EA
  • Dema Engineering