| Select | | 3M Company | Test Lab | 3M Center | Maplewood | Minnesota | USA |
| Select | | 3M Company (Filtrete) | Test Lab | 3M Center | Maplewood | Minnesota | USA |
| Select | | ABB Motors and Mechanical Inc. | Test Lab | 5711 R.S. Boreham Jr. St. | Fort Smith | Arkansas | USA |
| Select | | Acuity Brands Lighting | Test Lab | 1 Acuity Way | Decatur | Georgia | USA |
| Select | | adamant technical services inc | Test Lab | 26851 miles rd | cleveland | Ohio | USA |
| Select | | Advanced Charging technologies | Test Lab | 17260 Newhope St | Fountain Valley | California | USA |
| Select | | Advanced Computing Devices Inc | Test Lab | 13941 Central Avenue | Chino | California | USA |
| Select | | Aibo Standard Technology (Shenzhen) CO., LTD | Test Lab | 101, Building B, Tuori New Energy Industrial Park | Shenzhen | Guangdong | China |
| Select | | Air Cool Industrial Co., Ltd. | Test Lab | Chen Jiang Administrative District, Bai Yun Shan, Luo-Qun Village | Chen Jiang, HuiZhou | Guangdong | China |
| Select | | Air Movement and Control Association, International (AMCA) | Test Lab | 30 West University Drive | Arlington Heights | Illinois | USA |
| Select | | AirPro Fan & Blower Company | Test Lab | 425 W Davenport St | RHINELANDER | Wisconsin | USA |
| Select | | AirScape, Inc. | Test Lab | 625 Charles Way | Medford | Oregon | USA |
| Select | | Alfred Kaercher SE & Co. KG | Test Lab | Alfred-Kaercher-Strasse 28-40 | Winnenden | Baden-Wuerttemberg | Germany |
| Select | | Alliance Laundry Systems LLC | Test Lab | Shepard Street P.O. Box 990 | Ripon | Wisconsin | USA |
| Select | | American Coolair Corp | Test Lab | 3604 Mayflower Street | Jacksonville | Florida | USA |
| Select | | American Power Conversion Holdings Inc. Taiwan Branch | Test Lab | 5F., No. 189, Sec. 2, Jiuzong Rd., Neihu Dist. | Taipei City | Taiwan | Taiwan |
| Select | | Ametek Prestolite Power | Test Lab | 875 Dearborn Drive | Columbus | Ohio | USA |
| Select | | Andromeda Insights | Test Lab | 80 N Danebo Ave | Eugene | Oregon | USA |
| Select | | Anhui Lanjie Intelligent Home Appliance Co.,LTD | Test Lab | No.26,Laifu Road,Xinqiao International Industrial | Huainan | Anhui | China |
| Select | | AnTek Certification, Inc. | Test Lab | 7F., No 351, Yangguang St. | Neihu District | Taipei | Taiwan |
| Select | | Apple, Inc. | Test Lab | One Apple Park Way | Cupertino | California | USA |
| Select | | AQM SRL | Test Lab | Via T.edison 18 | Provaglio D Iseo | Italy - BS | Italy |
| Select | | Aquasana | Test Lab | 6310 Midway Rd | Haltom City | Texas | USA |
| Select | | ARCELIK A.S. | Test Lab | Karaagaç Cad. No:2-6 Sütlüce Beyoglu | Istanbul | Istanbul | Turkey |
| Select | | Architectural Testing, Inc | Test Lab | 1701 West Fork Drive | Lithia Springs | Georgia | USA |
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