| Firm | City | State | Country | Chapter | Website |
| A & H Balance Company | Lexington | KY | USA | Ohio Kentucky EBB |
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| A & P Services Limited | Cornerbrook | NewFoundland | Canada | NEBB Canada |
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| A.D. & M. - Testing and Balancing | West Seneca | NY | USA | Western New York |
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| A.E. Smith & Son Pty Ltd | Eagle Farm | Queensland | Australia | |
http://www.aesmith.com.au
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| A.E. Smith and Son Pty Ltd | Mulgrave | Victoria | Australia | |
http://www.aesmith.com.au
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| A.G. Coombs, Pty Ltd | Moorabbin | Victoria | Australia | |
http://www.agcoombs.com.au
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| A.G. O'Connor Pty, Ltd. | Kent Town | South Australia | Australia | NEBB Australia |
http://www.oconnorservices.com.au
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| A.T.D. Test & Balancing Services | Guaynabo | PR | USA | Capital - Mar Va International NEBB |
|
| a2b Accurate Air Balancing LLC | Laconia | NH | USA | Northeast EBB |
http://www.a3bllc.net
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| Aaron Engineering Services | Chicago | IL | USA | Illinois EBB |
http://www.aaronengineeringtab.com
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| Abdullah Al-Hamoud Al-Shuwayer HVAC Testing Division | Dammam | Kingdom of Saudi Arabia | Saudi Arabia | Capital - Mar Va International NEBB |
http://www.shuwayer.com
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| Able Balance AZ, LLC. | Goodyear | AZ | USA | Southwest EBB |
http://www.ablebalance.com
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| ABM Building Services | Tempe | AZ | USA | Southwest EBB |
http://www.abm.com
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| Absolut Balancing Co., Inc. | South Lyon | MI | USA | Michigan EBB |
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| Acadian Air Balance, Inc. | Lafayette | LA | USA | North Louisiana |
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| ACCO Engineered Systems | Glendale | CA | USA | Southern California EBB |
http://www.accoes.com
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| ACCO Engineered Systems-San Leandro | San Leandro | CA | USA | Northern California/Hawaii NEBB |
http://www.accoes.com
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| Accu-Flow Balancing Co., LLC | Warrington | PA | USA | Mid-Atlantic EBA |
http://www.accuflowbalancing.com
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| Accurate Balancing & Commissioning | Loxahatchee | FL | USA | Florida EBB |
http://www.AccurateCommissioning.com
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| Accurate Balancing Agency, Inc. | Beaverton | OR | USA | Pacific Northwest EBB |
http://www.abainc.us
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| Accurate Test & Balance, LLC | Capital Heights | MD | USA | Capital - Mar Va International NEBB |
|
| AccuSpec Engineering, LLC. | Lake Dallas | TX | USA | Texas NEBB |
http://www.accuspeceng.com
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| AccuTec Services, Inc. | Lee's Summit | MO | USA | Great Plains NEBB |
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| AccuTech Testing & Balancing, LLC. | Berwick | PA | USA | Mid-Atlantic EBA |
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| Ace Lab Systems, Inc. | St. Louis | MO | USA | Eastern Missouri EBB |
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| ACE Mechanical HVAC Services | Berwick | Victoria | Australia | NEBB Australia |
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| ACP Sheet Metal Company, Inc. | Oklahoma City | OK | USA | Oklahoma EBB |
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| Addison Energy Technologies, LLC. | Toccoa | GA | USA | Mid-South EBB |
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| Advance Air Systems | Ft Worth | TX | USA | Texas NEBB |
http://www.TestAdjustandBalance.com
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| Advance Laboratory System Engineering Pte., Ltd. | #03-04 Media Centre | Singapore | Singapore | NEBB Australia |
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| Advanced Air Balance, LLC | Mentor | OH | USA | Ohio Kentucky EBB |
http://www.AdvancedAirBalance.com
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| Advanced Mechanical Services, Inc. | Silverdale | WA | USA | Pacific Northwest EBB |
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| Advanced Testing & Balancing Co., Inc. | West Haven | CT | USA | Northeast EBB |
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| Aero Testing & Balancing Sys. Inc. | Franklin Park | IL | USA | Illinois EBB |
http://www.aerotesting.com
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| Aerohydronics Inspecting Company | West Hills | CA | USA | Southern California EBB |
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| AG Coombs (NSW) Pty, Ltd. | Newington | NSW | Australia | NEBB Australia |
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| AG Coombs Pty Ltd (Qld) | Fortitude Valley | Queensland | Australia | |
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| Air Adjustments & Balancing, Inc. | Schomberg | Ontario | Canada | NEBB Canada |
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| Air Analysis of Atlanta, Inc. | Conyers | GA | USA | Mid-South EBB |
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| Air Audit Inc. | Cambridge | Ontario | Canada | NEBB Canada |
http://www.airaudit.ca
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| Air Balance and Diagnostic Company | Miami | FL | USA | Florida EBB |
http://www.airbalancedx.com
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| Air Balance Hawaii, Inc. | Honolulu | HI | USA | Northern California/Hawaii NEBB |
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| Air Balance of Omaha | Omaha | NE | USA | Great Plains NEBB |
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| Air Balance Professionals | Brooksville | MS | USA | Arkansas NEBB |
http://www.airbalancepro.com
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| Air Balancing Engineers, Inc. | Berwick | PA | USA | Mid-Atlantic EBA |
http://www.airbalancing.com
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| Air Balancing Service Company | North Haven | CT | USA | Northeast EBB |
http://www.airbal.com
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| Air Balancing Specialty Inc. | Portland | OR | USA | Pacific Northwest EBB |
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| Air Commander Test & Balance, LLC | Spokane | WA | USA | Pacific Northwest EBB |
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| Air Control Balancing, Inc. | Fresno | CA | USA | Northern California/Hawaii NEBB |
http://www.aircontrolbalancing.com
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| Air Data - Macon, Georgia | Bolingbroke | GA | USA | Mid-South EBB |
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