| Name | Certification | Valid Through | Street Address | City | State | Zip | Phone |
|---|---|---|---|---|---|---|---|
| Air Solutions, Inc. | Fire and Smoke Damper Contractor | 9/30/2024 | 2108 Greater Oak Drive | LAPEER | MI | 48446 | 810-358-8644 |
| Air Solutions, Inc. | TABB Contractor | 9/30/2024 | 2108 Greater Oak Drive | LAPEER | MI | 48446 | 810-358-8644 |
| Total Mechanical | Fire and Smoke Damper Contractor | 3/31/2024 | W234 N2830 Paul rd | Pewaukee | WI | 53072 | 2625232500 |
| Total Mechanical | TABB Contractor | 3/31/2024 | W234 N2830 Paul rd | Pewaukee | WI | 53072 | 2625232500 |
| Independent Air Group Inc | TABB Commissioning Contractor | 3/31/2023 | 12046 Jacaranda Ave Ste D | Hesperia | CA | 92345 | 760-949-9972 |
| Independent Air Group Inc | TABB Contractor | 3/31/2023 | 12046 Jacaranda Ave Ste D | Hesperia | CA | 92345 | 760-949-9972 |
| Aldag/Honold Mechanical, Inc. | Fire and Smoke Damper Contractor | 9/30/2024 | 3509 S Business Dr | Sheboygan | WI | 53081 | 920-458-5558 |
| Aldag/Honold Mechanical, Inc. | TABB Contractor | 9/30/2022 | 3509 S Business Dr | Sheboygan | WI | 53081 | 920-458-5558 |
| Aaron Engineering Service | TABB Contractor | 12/31/2022 | 5420 West Roosevelt Rd, 300 | Chicago | IL | 60644 | 7734740143 |
| Mountain Air Balancing, LLC | TABB Contractor | 12/31/2022 | 216 Demellier Rd | Tunkhannock | PA | 18657 | 570-239-6897 |
| Arends Balancing & Comm. Inc | TABB Commissioning Contractor | 9/30/2023 | 4918 N 90th St | Milwaukee | WI | 53225 | 414-2348071 |
| Arends Balancing & Comm. Inc | TABB Contractor | 9/30/2023 | 4918 N 90th St | Milwaukee | WI | 53225 | 414-2348071 |
| Olympia Sheet Metal, Inc. | Fire and Smoke Damper Contractor | 12/31/2022 | 2839 Marvin Rd NE | Olympia | WA | 98516 | 3604911123 |
| Air Perfect Total Systems | TABB Contractor | 12/31/2024 | 4250 East Tremont Avenue | BRONX | NY | 10465 | 9179744303 |
| Balance America, Inc. | TABB Sound and Vibration Contractor | 3/31/2023 | 1185 Linda Vista Dr Ste B | San Marcos | CA | 92078 | 760-798-9255 |
| Balance America, Inc. | TABB Commissioning Contractor | 3/31/2023 | 1185 Linda Vista Dr Ste B | San Marcos | CA | 92078 | 760-798-9255 |
| Balance America, Inc. | TABB Contractor | 3/31/2023 | 1185 Linda Vista Dr Ste B | San Marcos | CA | 92078 | 760-798-9255 |
| CERTIFIED BALANCING AND COMMISSIONING | TABB Contractor | 3/31/2023 | PO 620547 | LITTLETON | CO | 80162 | 720-201-6274 |
| E. L. Barrett Company, Inc. | TABB Contractor | 3/31/2023 | 1147 Hancock | Quincy | MA | 2169 | 6172858075 |
| T&B Service | TABB Contractor | 9/30/2025 | 110B E Grand Ave | Eau Claire | WI | 54701 | 715-835-7813 |
| Tweet/Garot Mechanical, Inc | Fire and Smoke Damper Contractor | 12/31/2022 | 325 Reid St | DePere | WI | 54115 | 910-498-7650 |
| All American Balancing LLC | TABB Contractor | 6/30/2024 | 10157 Lake Rd | Otisville | MI | 48463 | 810-569-4152 |
| Air Systems Balancing & Testing | TABB Contractor | 9/30/2022 | 339 East Ave Suite 309 | Rochester | NY | 14604 | 585-232-3440 |
| Air Systems Balancing & Testing | Fire and Smoke Damper Contractor | 9/30/2022 | 339 East Ave Suite 309 | Rochester | NY | 14604 | 585-232-3440 |
| Air Systems Balancing & Testing | TABB Commissioning Contractor | 9/30/2022 | 339 East Ave Suite 309 | Rochester | NY | 14604 | 585-232-3440 |
| Total Flow Control | TABB Contractor | 12/31/2022 | 440 Burroughs St | Detroit | MI | 48202 | 6144390870 |
| Metro Sheet Metal | Fire and Smoke Damper Contractor | 6/30/2023 | 3260 Fanum Rd | St. Paul | MN | 55110 | 651-704-9366 |
| Independent Sheet Metal, LLC | Fire and Smoke Damper Contractor | 3/31/2025 | 1301 Hook Drive | Middletown | OH | 45042 | 513-705-4120 |
| Independent Sheet Metal, LLC | Smoke Control Systems Contractor | 9/30/2022 | 1301 Hook Drive | Middletown | OH | 45042 | 513-705-4120 |
| Gundlach Sheet Metal Works, Inc | Fire and Smoke Damper Contractor | 6/30/2023 | 910 COLUMBUS AVE | SANDUSKY | OH | 44870 | 14196264525 |
| Trueflow Testing & Balancing, LLC | TABB Contractor | 3/31/2024 | 489A Old Hartford Road | Colchester | CT | 6415 | 8605319398 |
| SystemWorks LLC | TABB Contractor | 3/31/2023 | 409 5th St | West Des Moines | IA | 50265 | 515-975-9938 |
| Holaday Parks | TABB Contractor | 9/30/2024 | 4600 134th Pl. | Tukwila | WA | 98168 | 206-276-4258 |
| ACCO Engineered Systems | TABB Contractor | 9/30/2024 | 888 East Walnut Street | Pasadena | CA | 91101 | 818-805-4972 |
| Mechanical Testing Inc. | Fire and Smoke Damper Contractor | 12/31/2022 | 4 Chelsea Place Suite 4 | Clifton Park | NY | 12065 | 6073722880 |
| Mechanical Testing Inc. | TABB Contractor | 12/31/2022 | 4 Chelsea Place Suite 4 | Clifton Park | NY | 12065 | 6073722880 |
| Mechanical Testing Inc. | Smoke Control Systems Contractor | 9/30/2022 | 4 Chelsea Place Suite 4 | Clifton Park | NY | 12065 | 6073722880 |
| Air Balancing Service Company | TABB Contractor | 3/31/2024 | 16 Progress Circle, Suite 1A | Newington | CT | 6111 | 860-500-5008 |
| Southland Industries | TABB Contractor | 9/30/2022 | 22340 Dresden St Suite 177 | Dulles | VA | 20166 | 703-939-4735 |
| Southland Industries | Fire and Smoke Damper Contractor | 9/30/2022 | 22340 Dresden St Suite 177 | Dulles | VA | 20166 | 703-939-4735 |
| Southland Industries | TABB Sound and Vibration Contractor | 9/30/2022 | 22340 Dresden St Suite 177 | Dulles | VA | 20166 | 703-939-4735 |
| Cahill Sketching and Inspecting | Fire and Smoke Damper Contractor | 12/31/2025 | 44 Clement Dr | Somerdale | NJ | 8083 | 8567450141 |
| AMS Mechanical Systems, Inc. | Fire and Smoke Damper Contractor | 3/31/2024 | 9341 Adam Don Parkway | Woodridge | IL | 60517 | (630) 887-7700 |
| US Test & Balance Corporation | TABB Sound and Vibration Contractor | 6/30/2024 | 20 Corporate Park Dr Ste D | Hopewell Junction | NY | 12533 | 845-896-5609 |
| US Test & Balance Corporation | Fire and Smoke Damper Contractor | 6/30/2024 | 20 Corporate Park Dr Ste D | Hopewell Junction | NY | 12533 | 845-896-5609 |
| US Test & Balance Corporation | TABB Commissioning Contractor | 6/30/2024 | 20 Corporate Park Dr Ste D | Hopewell Junction | NY | 12533 | 845-896-5609 |
| US Test & Balance Corporation | TABB Contractor | 6/30/2024 | 20 Corporate Park Dr Ste D | Hopewell Junction | NY | 12533 | 845-896-5609 |
| DeBra-Kuempel | Fire and Smoke Damper Contractor | 6/30/2024 | 3976 Southern Ave | Cincinnati | OH | 45227 | 513-271-6500 |
| Complete Mechanical Balancing, Inc. | TABB Contractor | 3/31/2023 | PO Box 27706 | Denver | CO | 80227 | 303-948-5429 |
| SHERMAN MECHANICAL, INC | Fire and Smoke Damper Contractor | 6/30/2024 | 1075 ALEXANDER COURT | CARY | IL | 60013 | 847-462-1000 |
| The Waldinger Corporation | Fire and Smoke Damper Contractor | 12/31/2022 | 6200 Scout Trail | Des Moines | IA | 50321 | 515-729-8628 |
| Premier Heating & Cooling Inc. | Fire and Smoke Damper Contractor | 12/31/2023 | 142 Tuscany Ln | Wentzville | MO | 63385 | 636-395-3183 |
| Premier Heating & Cooling Inc. | TABB Contractor | 12/31/2023 | 142 Tuscany Ln | Wentzville | MO | 63385 | 636-395-3183 |
| Precision TAB Services | TABB Contractor | 3/31/2023 | 2 highland mews | Glen Cove | NY | 11542 | 516-209-9632 |
| Wings Testing and Balancing | Fire and Smoke Damper Contractor | 12/31/2022 | 94 N Branford Rd | Branford | CT | 6405 | 203-481-4988 |
| Wings Testing and Balancing | TABB Sound and Vibration Contractor | 12/31/2022 | 94 N Branford Rd | Branford | CT | 6405 | 203-481-4988 |
| Wings Testing and Balancing | TABB Contractor | 12/31/2022 | 94 N Branford Rd | Branford | CT | 6405 | 203-481-4988 |
| Wings Testing and Balancing | Smoke Control Systems Contractor | 9/30/2022 | 94 N Branford Rd | Branford | CT | 6405 | 203-481-4988 |
| Wings Testing and Balancing | TABB Commissioning Contractor | 12/31/2022 | 94 N Branford Rd | Branford | CT | 6405 | 203-481-4988 |
| Associated Air Balance | TABB Contractor | 12/31/2022 | 457 E Arrow Hwy Ste D | Azusa | CA | 91702 | 626-915-8117 |
| Superior Test and Balance | TABB Contractor | 3/31/2023 | 861 E Leadora Ave | Glendora | CA | 91741 | 626-771-1012 |
| E-Balance | TABB Contractor | 6/30/2023 | 12921 E 107th Ave | Commerce City | CO | 80022 | 3035327560 |
| ABM Building Solutions, LLC | TABB Contractor | 3/31/2024 | 3640 Northgate Blvd, Suite 200 | Sacramento | CA | 95834 | 916-381-4526 |
| Tekon-Technical Consultants, Inc. | TABB Contractor | 9/30/2022 | 222 International Drive, Suite 165 | Portsmouyh | NH | 3801 | 603-335-3080 |
| Bledsoe Environmental LLC | TABB Contractor | 3/31/2024 | 1400 Sunday Dr. | Indianapolis | IN | 46217 | 317-821-4750 |
| H. T. Lyons | TABB Contractor | 3/31/2023 | 7165 Ambassador Drive | Allentown | PA | 18106 | 610-530-2600 |
| Payson Sheet Metal | TABB Contractor | 3/31/2023 | 451 N Main | Payson | UT | 84651 | 801-465-3018 |
| Premier Testing & Balancing LLC | TABB Contractor | 9/30/2025 | 169 commack Rd #1034 | Commack | NY | 11725 | 6462671417 |
| Mechanical Test & Balance, Inc. | TABB Commissioning Contractor | 6/30/2024 | 641 Western Ave | Chicago | IL | 60612 | 219-663-8107 |
| Mechanical Test & Balance, Inc. | TABB Contractor | 6/30/2024 | 641 Western Ave | Chicago | IL | 60612 | 219-663-8107 |
| Equal Air Balance Co | TABB Contractor | 6/30/2024 | 357 East Arrow Highway | San Dimas | CA | 91773 | (714) 637-3500 |
| Lor Mar Mechanical | Fire and Smoke Damper Contractor | 12/31/2022 | 6710 Westfield Dr | Pennsauken | NJ | 8810 | 856-662-5151 |
| JF Ahern | TABB Contractor | 6/30/2024 | 3201 West Canal St | Milwaukee | WI | 53208 | 414-336-9645 |
| University Mechanical Contractors Inc. | TABB Contractor | 9/30/2023 | 4416 95th Ave NE | Lake Stevens | WA | 98258 | 425-245-2811 |
| R & D Heating and Sheet Metal | Fire and Smoke Damper Contractor | 9/30/2022 | 3200 Blackmore Rd | Perry | OH | 44081 | 440-259-3370 |
| General Sheet Metal Works, Inc | Fire and Smoke Damper Contractor | 3/31/2023 | P O Box 1490 | Clackamas | OR | 97015 | 503-650-0405 |
| Air Moving Equipment Company | TABB Contractor | 12/31/2022 | 2645 Ardis | Las Cruces | NM | 88011 | 575-639-8787 |
| Air Moving Equipment Company | TABB Commissioning Contractor | 12/31/2022 | 2645 Ardis | Las Cruces | NM | 88011 | 575-639-8787 |
| Air Moving Equipment Company | TABB Sound and Vibration Contractor | 12/31/2022 | 2645 Ardis | Las Cruces | NM | 88011 | 575-639-8787 |
| Built Environmental Systems Testing | TABB Commissioning Contractor | 12/31/2025 | 614 W. Guthrie | Cashion | OK | 73016 | 501-412-1975 |
| Built Environmental Systems Testing | TABB Contractor | 12/31/2025 | 614 W. Guthrie | Cashion | OK | 73016 | 501-412-1975 |
| CIC Mechanical Systems | Fire and Smoke Damper Contractor | 6/30/2024 | 419 Market St., | Freeport | PA | 16229 | 724-504-1613 |
| Farrington Air Quality Services LLC | Fire and Smoke Damper Contractor | 9/30/2024 | PO Box 760 | Sumner | WA | 98390 | 2532255592 |
| Farrington Air Quality Services LLC | TABB Contractor | 9/30/2024 | PO Box 760 | Sumner | WA | 98390 | 2532255592 |
| Design Flow Associates LLC | Fire and Smoke Damper Contractor | 3/31/2023 | 27 Lantern Ln | Halifax | MA | 2338 | 617-590-0158 |
| Fathom Testing LLC | TABB Contractor | 6/30/2023 | 2300 Bowen Road #2 | Elma | NY | 14059 | 716-259-0084 |
| Fathom Testing LLC | TABB Commissioning Contractor | 6/30/2024 | 2300 Bowen Road #2 | Elma | NY | 14059 | 716-259-0084 |
| Sunset Air Inc. | Fire and Smoke Damper Contractor | 3/31/2024 | Sunset Air, Inc. | Lacey | WA | 98503 | 3604564956 |
| Precision Air Balance Co Inc - LV | Fire and Smoke Damper Contractor | 9/30/2023 | 3330 W. HACIENDA AVE., #407 | LAS VEGAS | NV | 89118 | 702-270-2688 |
| Precision Air Balance Co Inc | TABB Contractor | 12/31/2023 | 1240 N JEFFERSON ST | ANAHEIM | CA | 92807 | 7146303796 |
| Precision Air Balance Co Inc - LV | Smoke Control Systems Contractor | 9/30/2022 | 3330 W. HACIENDA AVE., #407 | LAS VEGAS | NV | 89118 | 702-270-2688 |
| Precision Air Balance Co Inc - LV | TABB Contractor | 9/30/2023 | 3330 W. HACIENDA AVE., #407 | LAS VEGAS | NV | 89118 | 702-270-2688 |
| Western Allied Mechanical | Fire and Smoke Damper Contractor | 3/31/2024 | 1180 O'Brien Drive | Menlo Park | CA | 94025 | 6503260750 |
| Western Allied Mechanical | Smoke Control Systems Contractor | 9/30/2022 | 1180 O'Brien Drive | Menlo Park | CA | 94025 | 6503260750 |
| TABCO International | TABB Contractor | 12/31/2022 | 3832-10 Baymeadows Road | Jacksonville | FL | 32217 | 904-235-6957 |
| TABCO International | TABB Sound and Vibration Contractor | 9/30/2022 | 3832-10 Baymeadows Road | Jacksonville | FL | 32217 | 904-235-6957 |
| TICX Group | TABB Commissioning Contractor | 9/30/2022 | 3832-10 Baymeadows Road | Jacksonville | FL | 32217 | 904-235-6957 |
| Central Valley Systems Consultants | TABB Contractor | 3/31/2023 | 3131 Meade Ave | Las Vegas | NV | 89102 | 702-285-2295 |
| VM Systems, Inc. | TABB Contractor | 3/31/2024 | 3125 Hill Ave. | Toledo | OH | 43607 | 419-535-1044 |
| VM Systems, Inc. | Fire and Smoke Damper Contractor | 3/31/2024 | 3125 Hill Ave. | Toledo | OH | 43607 | 419-535-1044 |
| Kleeberg Sheet Metal Inc | Fire and Smoke Damper Contractor | 3/31/2023 | Kleeberg Sheet Metal INC. 65 Westover Rd | Ludlow | MA | 1056 | 4132460361 |
| H.E. Neumann Company | Fire and Smoke Damper Contractor | 3/31/2023 | 100 Middle Creek Rd | Triadelphia | WV | 26059 | (304) 232-3040 |
| Genesio Company | Fire and Smoke Damper Contractor | 6/30/2024 | 66 Richard Road | Ivyland | PA | 18974 | 800-273-4822 |
| Bal-Tech, Inc. | TABB Contractor | 9/30/2023 | 303 21st Street, Suite 109 | St. Paul | MN | 55055 | 651-785-5182 |
| ACCO Engineered Systems | Fire and Smoke Damper Contractor | 3/31/2024 | 9290 Beatty Dr | Sacramento | CA | 95826 | 916-520-2100 |
| Mared Mechanical | TABB Contractor | 9/30/2022 | W128N8600 Old Orchard Rd | Menomonee Falls | WI | 53051 | 414-331-1736 |
| SSM Industries Inc | TABB Contractor | 9/30/2022 | 3401 Grand Ave | Pittsburgh | PA | 15225 | (412) 8157476 |
| University Mechanical Contractors Inc. | Fire and Smoke Damper Contractor | 3/31/2023 | 11611 49th Place West | Mukilteo | WA | 98275 | 425-245-2811 |
| Cattrell Companies, Inc. | Fire and Smoke Damper Contractor | 6/30/2024 | 906 Franklin Street | Toronto | OH | 43964 | 740-537-2481 |
| Harvey Air Balance (HABCO) | TABB Contractor | 6/30/2023 | PO Box 236 | Madison | WV | 25130 | 304-687-4598 |
| Harvey Air Balance (HABCO) | TABB Sound and Vibration Contractor | 6/30/2023 | PO Box 236 | Madison | WV | 25130 | 304-687-4598 |
| Hays Sheet Metal | Fire and Smoke Damper Contractor | 3/31/2023 | 7070 Kaighns Ave | Pennsauken | NJ | 8109 | 8566627722 |
| J L Mechanical Services, Inc | Fire and Smoke Damper Contractor | 6/30/2023 | 13662 Roachton Rd | Perrysburg | OH | 43551 | 419-872-6000 |
| Precision Balancing Group | Fire and Smoke Damper Contractor | 9/30/2023 | 549 Pine Tree Dr | Fond Du Lac | WI | 54935 | 920-979-3825 |
| Precision Balancing Group | TABB Contractor | 9/30/2023 | 549 Pine Tree Dr | Fond Du Lac | WI | 54935 | 920-979-3825 |
| Speer Mechanical | Fire and Smoke Damper Contractor | 12/31/2022 | 5255 Sinclair Rd | Columbus | OH | 43229 | 614-261-6331 |
| Speer Mechanical | Smoke Control Systems Contractor | 12/31/2022 | 5255 Sinclair Rd | Columbus | OH | 43229 | 614-261-6331 |
| ADS | Fire and Smoke Damper Contractor | 6/30/2024 | 1000 Astoria Blvd | Cherry Hill | NJ | 8003 | 8568741100 |
| General Temperature Control | Fire and Smoke Damper Contractor | 12/31/2022 | 970 W Walnut St | Canal Winchester | OH | 43110 | 614-837-3888 |
| Pacific Test and Balance, Inc. | TABB Contractor | 3/31/2025 | 4771 Mangels Blvd. | Fairfield | CA | 94534 | 707-696-2444 |
| Enerplex Mechanical Systems, Inc. | Fire and Smoke Damper Contractor | 9/30/2024 | 728 Canal St | Bristol | PA | 19007 | 2154587258 |
| Gennesaret Mechanical Services, LLC | TABB Contractor | 6/30/2024 | 1680 Clock Tower Dr. | Saint Louis | MO | 63138 | 3148454939 |
| VeriTAB Environmental Balancing LLC | TABB Contractor | 3/31/2023 | 19803 Ralston St | Orlando | FL | 32833 | 513-673-8252 |
| McKinstry Co | Fire and Smoke Damper Contractor | 9/30/2024 | 5005 3rd Ave South | Seattle | WA | 98134 | 12067625900 |
| Frank M Booth | TABB Contractor | 9/30/2022 | 4220 Douglas Blvd | Granite Bay | CA | 95746 | 9165423174 |
| Frank M Booth | Fire and Smoke Damper Contractor | 9/30/2024 | 4220 Douglas Blvd | Granite Bay | CA | 95746 | 9165423174 |
| Frank M Booth | TABB Commissioning Contractor | 9/30/2024 | 4220 Douglas Blvd | Granite Bay | CA | 95746 | 9165423174 |
| Mechanical Sheet Metal Co | Fire and Smoke Damper Contractor | 9/30/2024 | 723 Walnut St | Wyandotte | MI | 48192 | 734-284-1006 |
| Accurate Test and Balance, LLC | TABB Contractor | 12/31/2023 | 1604 Riverview Ter | Wall Township | NJ | 07719-3476 | 7322999553 |
| Air Control Balancing, Inc. | TABB Contractor | 3/31/2023 | 2140 North Winery, Suite 103 | Fresno | CA | 93703 | 559-454-8000 |
| McDowall Company | Fire and Smoke Damper Contractor | 6/30/2024 | 1431 Prosper Drive | Waite Park | MN | 56387 | 320.203.9336 |
| ACCO Engineered Systems | TABB Contractor | 9/30/2022 | 1133 Aladdin Ave | San Leandro | CA | 94577 | 510-346-4300 |
| Ingersoll Sheet Metal, LLC | Fire and Smoke Damper Contractor | 12/31/2022 | 7339 Arctic Blvd. | Anchorage | AK | 99518 | 9075622412 |
| Test and Balance Solutions Inc. | TABB Contractor | 9/30/2022 | 1819 Adams St | Mankato | MN | 56001 | 5072704255 |
| Midwest Associates | TABB Contractor | 9/30/2024 | 2620 Branigin Creek Blvd | Franklin | IN | 46131 | 317-519-8820 |
| Midwest Associates | TABB Sound and Vibration Contractor | 9/30/2024 | 2620 Branigin Creek Blvd | Franklin | IN | 46131 | 317-519-8820 |
| Energy Balance & Integration LLC | Fire and Smoke Damper Contractor | 9/30/2024 | 8915 Adams St NE | Albuquerque | NM | 87113 | 505-344-7979 |
| Energy Balance & Integration LLC | TABB Contractor | 9/30/2024 | 8915 Adams St NE | Albuquerque | NM | 87113 | 505-344-7979 |
| Energy Balance & Integration LLC | Smoke Control Systems Contractor | 9/30/2022 | 8915 Adams St NE | Albuquerque | NM | 87113 | 505-344-7979 |
| E3 Balance Nevada LLC | TABB Contractor | 3/31/2024 | 8205 W. Warm Springs Rd. #110 | Las Vegas | NV | 89113 | 702-622-0079 |
| Premier Test & Balance LLC | TABB Contractor | 12/31/2022 | 375 230th Ave | Somerset | WI | 54025 | 612-834-0311 |
| K & I Sheet Metal, Inc. | Fire and Smoke Damper Contractor | 12/31/2023 | 2010 Chapman Street | Pittsburgh | PA | 15215 | 14122927022 |
| Lee Mechanical | Fire and Smoke Damper Contractor | 3/31/2023 | 4883 W Blazing Star Rd | Franklin | WI | 53132 | 1-262-771-4932 |
| Lee Mechanical | TABB Contractor | 3/31/2023 | 4883 W Blazing Star Rd | Franklin | WI | 53132 | 1-262-771-4932 |
| Wm J Donovan Co | TABB Contractor | 6/30/2023 | 3429 W Indiana Ave | Philadelphia | PA | 19132 | 215-225-3677 |
| Wm J Donovan Co | Fire and Smoke Damper Contractor | 6/30/2023 | 3429 W Indiana Ave | Philadelphia | PA | 19132 | 215-225-3677 |
| Labco Air & Water Balancing, Inc. | TABB Commissioning Contractor | 6/30/2024 | 1090 Mountain Road | West Suffield | CT | 6093 | (860) -668-1329 |
| Labco Air & Water Balancing, Inc. | TABB Contractor | 6/30/2024 | 1090 Mountain Road | West Suffield | CT | 6093 | (860) -668-1329 |
| MacDonald-Miller Facility Solutions | Smoke Control Systems Contractor | 9/30/2022 | 7717 Detroit AVE SW | Seattle | WA | 98106 | 206-571-2661 |
| MacDonald-Miller Facility Solutions | TABB Contractor | 3/31/2023 | 7717 Detroit AVE SW | Seattle | WA | 98106 | 206-571-2661 |
| MacDonald-Miller Facility Solutions | Fire and Smoke Damper Contractor | 3/31/2023 | 7717 Detroit AVE SW | Seattle | WA | 98106 | 206-571-2661 |
| MacDonald-Miller Facility Solutions | Fire and Smoke Damper Contractor | 3/31/2023 | 106010 E Wiser Pkwy | Kennewick | WA | 99338 | 2065712661 |
| Mechanical Test & Balance Inc | Smoke Control Systems Contractor | 9/30/2022 | 1416 E Joliet St | Crown Point | IN | 46307 | 219-663-8107 |
| Mechanical Test & Balance Inc | TABB Commissioning Contractor | 6/30/2024 | 1416 E Joliet St | Crown Point | IN | 46307 | 219-663-8107 |
| Mechanical Test & Balance Inc | Fire and Smoke Damper Contractor | 6/30/2024 | 1416 E Joliet St | Crown Point | IN | 46307 | 219-663-8107 |
| Mechanical Test & Balance Inc | TABB Contractor | 6/30/2024 | 1416 E Joliet St | Crown Point | IN | 46307 | 219-663-8107 |
| Campbell Mechanical Services Inc. | Fire and Smoke Damper Contractor | 3/31/2023 | 2875 Crane Way | Northwood | OH | 43619 | 419-392-0364 |
| McKamish | TABB Contractor | 3/31/2025 | 50 55th St | Pittsburgh | PA | 15201 | 412-520-4575 |
| Circo System Balance, Inc. | TABB Contractor | 9/30/2024 | 4100 Florin Perkins Road | Sacramento | CA | 95826 | 9168893714 |
| PSF Mechanical, Inc | Fire and Smoke Damper Contractor | 6/30/2023 | 11621 E Marginal Way S | Seattle | WA | 98168 | 2067649663 |
| Rymac Inc | TABB Contractor | 3/31/2023 | 1008 Thornton Way | San Jose | CA | 95128 | 408-371-1968 |
| Balance Technologies Inc | TABB Contractor | 9/30/2022 | 1906 S 3rd St | Milwaukee | WI | 53204-0997 | 414-708-3648 |
| Qual-Air HVAC, Inc. | Fire and Smoke Damper Contractor | 3/31/2023 | 18791 State Route 301 | Lagrange | OH | 44050 | 440-341-1745 |
| Pan-Pacific Mechanical | TABB Contractor | 12/31/2024 | 48363 Fremont Blvd | Fremont | CA | 94538 | 650-561-8810 |
| TH Martin Inc | Fire and Smoke Damper Contractor | 9/30/2022 | 8500 Brookpark Rd. | Cleveland | OH | 44129 | 216-741-2020 |
| A.F.I. Sheet Metal | Fire and Smoke Damper Contractor | 3/31/2023 | P.O. Box 3088 | Huntington | WV | 25702 | 304-529-0322 |
| McClanahan Inc DBA Hartmanaire | TABB Contractor | 6/30/2023 | 12 Gardenia | Lake Forest | CA | 92630 | 951-479-6855 |
| Silicon Valley Mechanical | TABB Contractor | 3/31/2025 | 2115 Ringwood Ave | San Jose | CA | 95131 | 9255778087 |
| Air Systems Sheet Metal | Fire and Smoke Damper Contractor | 3/31/2023 | 303 N Ohio Ave | Clarksburg | WV | 26301 | 304-326-0072 |
| Ohio Fabricators, Inc | Smoke Control Systems Contractor | 9/30/2022 | 1452 Kenmore Boulevard | Akron | OH | 44314 | 3307454406 |
| Ohio Fabricators, Inc | Fire and Smoke Damper Contractor | 3/31/2023 | 1452 Kenmore Boulevard | Akron | OH | 44314 | 3307454406 |
| ASAP LLC | Fire and Smoke Damper Contractor | 9/30/2022 | 1478 S Pike Ln | Gilbert | AZ | 85296 | 602-370-4797 |
| ASAP LLC | TABB Commissioning Contractor | 9/30/2022 | 1478 S Pike Ln | Gilbert | AZ | 85296 | 602-370-4797 |
| ASAP LLC | TABB Contractor | 9/30/2022 | 1478 S Pike Ln | Gilbert | AZ | 85296 | 602-370-4797 |
| ASAP LLC | TABB Contractor | 9/30/2022 | 1478 S Pike Ln | Gilbert | AZ | 85296 | 602-370-4797 |
| ASAP LLC | TABB Sound and Vibration Contractor | 9/30/2022 | 1478 S Pike Ln | Gilbert | AZ | 85296 | 602-370-4797 |
| Big Bend Associates, LLC DBA Miller and Associates Testing and Balancing | TABB Contractor | 6/30/2024 | 4 The Pines Ct | Saint Louis | MO | 63141 | 314-961-4018 |
| Sheet Metal Experts, Inc. | Fire and Smoke Damper Contractor | 3/31/2023 | 8986 N.W. 105th Way | Medley | FL | 33178 | (305) 805-2019 |
| Comfort Control Inc | TABB Contractor | 3/31/2023 | 6711 Distribution Dr | Beltsville | MD | 20705 | (301) 931-9300 |
| Systems Testing and Analysis Inc | Fire and Smoke Damper Contractor | 9/30/2022 | 11730 Old Ballas Road | Creve Coeur | MO | 63141 | 314-567-6011 |
| Systems Testing and Analysis Inc | Smoke Control Systems Contractor | 9/30/2022 | 11730 Old Ballas Road | Creve Coeur | MO | 63141 | 314-567-6011 |
| Holaday Parks | Smoke Control Systems Contractor | 9/30/2022 | 4600 134th Pl. | Tukwila | WA | 98168 | 425-231.2904 |
| Systems Testing and Analysis Inc | TABB Contractor | 9/30/2022 | 11730 Old Ballas Road | Creve Coeur | MO | 63141 | 314-567-6011 |
| Holaday Parks | Fire and Smoke Damper Contractor | 12/31/2022 | 4600 134th Pl. | Tukwila | WA | 98168 | 425-231.2904 |
| Bonland Industries | Fire and Smoke Damper Contractor | 3/31/2024 | 1500 Bridgewater Road | Bensalem | PA | 19020 | 2677209000 |
| J. F. Coffey Associates, Inc. | TABB Contractor | 9/30/2022 | 523 Washington St | Duxbury | MA | 2332 | 7819345200 |
| sheet metal inc | Fire and Smoke Damper Contractor | 3/31/2024 | 6517 arctic spur road | anchoarage | AK | 99518 | 9073060010 |
| Aero Building Solutions | TABB Contractor | 3/31/2023 | 11100 Belmont Ave | Franklin Park | IL | 60131 | 312-666-3097 |
| Aero Building Solutions | Fire and Smoke Damper Contractor | 3/31/2023 | 11100 Belmont Ave | Franklin Park | IL | 60131 | 312-666-3097 |
| RD's HVAC Inc | TABB Contractor | 9/30/2022 | 15020 S Cicero Ave, Suite 205 | Oak Forest | IL | 60452 | 708-925-4005 |
| N-Demand Test and Balance, LLC | TABB Commissioning Contractor | 6/30/2024 | 3810 Academy Parkway South NE | Albuquerque | NM | 87109 | 505-639-4564 |
| N-Demand Test and Balance, LLC | TABB Sound and Vibration Contractor | 6/30/2024 | 3810 Academy Parkway South NE | Albuquerque | NM | 87109 | 505-639-4564 |
| N-Demand Test and Balance, LLC | TABB Contractor | 6/30/2024 | 3810 Academy Parkway South NE | Albuquerque | NM | 87109 | 505-639-4564 |
| Native Air Company, LLC | TABB Contractor | 9/30/2022 | PO BOX 1466 | PERALTA | NM | 87042 | (505) 866-0822 |
| Gowan Inc Systems Commissioning Inc | TABB Contractor | 9/30/2022 | 5550 Airline Dr | Houston | TX | 77076 | 713-249-1268 |
| Gowan Inc Systems Commissioning Inc | Smoke Control Systems Contractor | 9/30/2022 | 5550 Airline Dr | Houston | TX | 77076 | 713-249-1268 |
| Gowan Inc Systems Commissioning Inc | Fire and Smoke Damper Contractor | 9/30/2022 | 5550 Airline Dr | Houston | TX | 77076 | 713-249-1268 |
| Edwards McDowell, Inc. | Fire and Smoke Damper Contractor | 12/31/2023 | 400 East 10th Ave. | North Kansas City | MO | 64116 | 816-221-7878 |
| Stromberg Metal Works Inc | Fire and Smoke Damper Contractor | 6/30/2023 | 6701 Distribution Dr | Beltsville | MD | 20705 | 301-931-1000 |
| Horwitz | Fire and Smoke Damper Contractor | 6/30/2023 | 7400 49th Ave N | New Hope | MN | 55428 | 763 533 1900 |
| Research Air Flo | TABB Contractor | 9/30/2023 | 5571 Peachtree Rd | Atlanta | GA | 30341 | 843-789-0672 |
| Empire Testing & Balancing Inc | TABB Contractor | 9/30/2022 | 7 Eileen Dr | Mahwah | NJ | 7430 | 2014462112 |
| West Coast Test and Balance | TABB Contractor | 3/31/2023 | 1686 2nd St | Livermore | CA | 94550-8275 | 925-605-8208 |
| Performance Testing and Balancing, LLc | TABB Contractor | 3/31/2023 | 282 Fomer Road | Southampton | MA | 1073 | 413-527-1682 |
| Jedi Balancing, Inc. | TABB Sound and Vibration Contractor | 9/30/2022 | 568 Briggs Street | Erie | CO | 80516 | (720) 839-5333 |
| Jedi Balancing, Inc. | TABB Commissioning Contractor | 9/30/2022 | 568 Briggs Street | Erie | CO | 80516 | (720) 839-5333 |
| Jedi Balancing, Inc. | TABB Contractor | 9/30/2022 | 568 Briggs Street | Erie | CO | 80516 | (720) 839-5333 |
| Hooper Corporation | Fire and Smoke Damper Contractor | 3/31/2024 | 6450 Pederson Crossing Blvd. | Deforest | WI | 53532 | 608268-3156 |
| Northern Ky Htg & Cooling | Fire and Smoke Damper Contractor | 9/30/2023 | 3213 Rector Road | Morning View | KY | 41063 | 8596200337 |
| Pospisil Enterprises LLC. | Fire and Smoke Damper Contractor | 3/31/2023 | P O Box 202 | Cedar Park | TX | 78630 | 512-431-6500 |
| Pospisil Enterprises LLC. | TABB Contractor | 3/31/2023 | P O Box 202 | Cedar Park | TX | 78630 | 512-431-6500 |
| Midwest Building Technologies | TABB Contractor | 6/30/2023 | 204 Fabricator Dr | Fenton | MO | 63026 | 6184100946 |
| Dynamic Air Solutions | TABB Contractor | 3/31/2023 | 3426 Bridgeland Drive | Bridgeton | MO | 63044 | 314-395-9125 |
| Dynamic Air Solutions | Fire and Smoke Damper Contractor | 3/31/2023 | 3426 Bridgeland Drive | Bridgeton | MO | 63044 | 314-395-9125 |
| Dynamic Air Solutions | Smoke Control Systems Contractor | 9/30/2022 | 3426 Bridgeland Drive | Bridgeton | MO | 63044 | 314-395-9125 |
| Dynamic Air Solutions | TABB Commissioning Contractor | 3/31/2023 | 3426 Bridgeland Drive | Bridgeton | MO | 63044 | 314-395-9125 |
| Dynamic Air Solutions | TABB Sound and Vibration Contractor | 3/31/2023 | 3426 Bridgeland Drive | Bridgeton | MO | 63044 | 314-395-9125 |
| Northstar Environmental Ltd | Smoke Control Systems Contractor | 9/30/2022 | 1198 Mulberry Street | Beaver | PA | 15009 | 724-775-2122 |
| Northstar Environmental Ltd | Fire and Smoke Damper Contractor | 12/31/2022 | 1198 Mulberry Street | Beaver | PA | 15009 | 724-775-2122 |
| Northstar Environmental Ltd | TABB Commissioning Contractor | 12/31/2024 | 1198 Mulberry Street | Beaver | PA | 15009 | 724-775-2122 |
| Northstar Environmental Ltd | TABB Sound and Vibration Contractor | 12/31/2022 | 1198 Mulberry Street | Beaver | PA | 15009 | 724-775-2122 |
| Northstar Environmental Ltd | TABB Contractor | 12/31/2022 | 1198 Mulberry Street | Beaver | PA | 15009 | 724-775-2122 |
| Freedom Air Balance, Inc. | TABB Contractor | 3/31/2023 | 9444 Oasis Road | Pinon Hills | CA | 92372 | 760-885-8898 |
| Illingworth-Kilgust Mechanical | TABB Contractor | 12/31/2022 | 11217 W. Becher St. | West Allis | WI | 53227 | 414-431-7177 |
| Big City Balancing | TABB Contractor | 9/30/2025 | 2441 31st ST #1016 | Astoria | NY | 11102 | 646-294-4138 |
| National Air Balance Company, Inc. | TABB Contractor | 6/30/2024 | 4171 Business Center Dr | Fremont | CA | 94538 | 510-623-7000 |
| DunRight Balancing LLC | TABB Contractor | 9/30/2022 | 17050 Goshawk Rd W | Colorado Springs | CO | 80908 | 719-322-1735 |
| Thermal Thinkers, Inc. | TABB Contractor | 6/30/2025 | 660 White Plains Rd Ste 120 | Tarrytown | NY | 10591 | 914-769-4190 |
| Air Balance Co., Inc. | TABB Contractor | 12/31/2022 | 440 N Barranca Avenue | Covina | CA | 91723 | 626-926-4203 |
| Fisher Balancing Co. | Fire and Smoke Damper Contractor | 12/31/2022 | 1799 Glassboro Cross-Keys Rd | Williamstown | NJ | 8094 | 856-740-9134 |
| Fisher Balancing Co. | TABB Contractor | 12/31/2022 | 1799 Glassboro Cross-Keys Rd | Williamstown | NJ | 8094 | 856-740-9134 |
| Certified Air Balance Co., Inc. | TABB Contractor | 9/30/2023 | 9970 Bell Ranch Dr Ste 101 | Santa Fe Springs | CA | 90670 | 5629411200 |
| Performance Testing and Balancing, LLC | TABB Contractor | 3/31/2023 | 282 Fomer Road | Southhampton | MA | 1073 | 413-527-1682 |
| Indoor Environmental Services | TABB Contractor | 12/31/2023 | 1512 Silica Ave. | Sacramento | CA | 95815 | 916-988-8808 |
| Dee Cramer Inc | Smoke Control Systems Contractor | 9/30/2022 | 4221 E. Baldwin Road | Holly | MI | 48442 | 810-579-4755 |
| Md systems testing llc | TABB Contractor | 9/30/2024 | 13500 Clara Martin Rd | Manor | TX | 78653 | 5125789405 |
| Independent Air Inc | TABB Contractor | 9/30/2022 | 4 Sycamore Ln | West Bridgewater | MA | 2379 | 508-580-8808 |
| Circle R Mechanical | Fire and Smoke Damper Contractor | 9/30/2024 | 6620 Shephard Ave | Portage | IN | 46368 | 219-746-3057 |
| Circle R Mechanical | TABB Contractor | 9/30/2024 | 6620 Shephard Ave | Portage | IN | 46368 | 219-746-3057 |
| Velocity Building Technical Services | Fire and Smoke Damper Contractor | 9/30/2024 | 21440 68th Ave. S. | Kent | WA | 98032 | 4253500905 |
| Marx Sheet Metal & Mechanical Inc | Fire and Smoke Damper Contractor | 3/31/2023 | 373 High Street | Wilkes Barre | PA | 18702 | 5708244737 |
| Duct Fabricators, Incorporated | Smoke Control Systems Contractor | 9/30/2022 | 883 Addison Road | Cleveland | OH | 44103 | 216.391.2400 |
| Duct Fabricators, Incorporated | Fire and Smoke Damper Contractor | 3/31/2023 | 883 Addison Road | Cleveland | OH | 44103 | 216.391.2400 |
| RDs HVAC | TABB Contractor | 3/31/2023 | 8741 Cranbrook Ln | Bridgeview | IL | 60455 | 708-441 7611 |
| Accustar Air Balance, Inc. | TABB Contractor | 3/31/2023 | W148 N6923 Terriwood Dr | Menomonee Falls | WI | 53051 | 262-502-7827 |
| Castle Heating and Air Inc. | Fire and Smoke Damper Contractor | 3/31/2023 | 30355 Solon Industrial Parkway | Solon | OH | 44139 | 216-696-3940 |
| Fluid Balance International | TABB Contractor | 6/30/2024 | PO Box 4260 | Lago Vista | TX | 78645 | 512-497-6812 |
| Fluid Balance LLC | TABB Contractor | 9/30/2024 | 5312 Travis Oaks | Marble Falls | TX | 78654 | 512-826-8857 |
| GTAB LLC | Smoke Control Systems Contractor | 9/30/2022 | PO Box 52080 | Mesa | AZ | 85208 | 480-352-2003 |
| GTAB LLC | TABB Contractor | 9/30/2024 | PO Box 52080 | Mesa | AZ | 85208 | 480-352-2003 |
| GTAB LLC | Fire and Smoke Damper Contractor | 9/30/2022 | PO Box 52080 | Mesa | AZ | 85208 | 480-352-2003 |
| GTAB LLC | TABB Sound and Vibration Contractor | 9/30/2024 | PO Box 52080 | Mesa | AZ | 85208 | 480-352-2003 |
| Synergy Mechanical, INC | TABB Contractor | 3/31/2023 | 4202 Warren Ave | Hillside | IL | 60162 | 708-410-1004 |
| The Jamar Company | Fire and Smoke Damper Contractor | 9/30/2022 | 4701 Mike Colalillo Drive | Duluth | MN | 55807 | 2186281027 |
| United Mechanical Inc | TABB Contractor | 12/31/2024 | 2185 Oakland Rd. | San Jose | CA | 95131 | 4087866661 |
| International Test & Balance, Inc | Fire and Smoke Damper Contractor | 3/31/2023 | 17135 W. 10 Mile Rd | Southfield | MI | 48075 | (248) 559-5864 |
| International Test & Balance, Inc | TABB Contractor | 3/31/2023 | 17135 W. 10 Mile Rd | Southfield | MI | 48075 | (248) 559-5864 |
| Chinook Test & Balance | TABB Contractor | 12/31/2022 | 6406 Turret Dr | COLORADO SPRINGS | CO | 80918 | 7196844310 |
| ACCO Engineered Systems | TABB Contractor | 12/31/2022 | 9290 Beatty Drive | Sacramento | CA | 95826 | 9162759902 |
| Hunter Mechanical - West Chester, PA | Fire and Smoke Damper Contractor | 3/31/2024 | 1525 McDaniel Drive | West Chester | PA | 19380-7037 | 2156332888 |
| Sheet Metal Inc. | TABB Contractor | 9/30/2022 | 6517 Arctic Spur Road | Anchorage | AK | 99518 | 9075696909 |
| TAB Services Inc. | Smoke Control Systems Contractor | 9/30/2022 | 2065 S Raritan St | Denver | CO | 80223 | (303) 649-1213 |
| TAB Services Inc. | TABB Sound and Vibration Contractor | 9/30/2022 | 2065 S Raritan St | Denver | CO | 80223 | (303) 649-1213 |
| TAB Services Inc. | TABB Contractor | 9/30/2022 | 2065 S Raritan St | Denver | CO | 80223 | (303) 649-1213 |
| TAB Services Inc. | TABB Commissioning Contractor | 9/30/2022 | 2065 S Raritan St | Denver | CO | 80223 | (303) 649-1213 |
| CFM Test & Balance Corporation | TABB Contractor | 9/30/2022 | 14 Depot Place Suite 2 | Bethel | CT | 6801 | (203) 778-1900 |
| Comprehensive Test and Balance, Inc | TABB Contractor | 6/30/2024 | Comprehensive Test & Balance, Inc. | Dover | PA | 17315 | 717-398-8196 |
| Weickert Industries | Fire and Smoke Damper Contractor | 3/31/2023 | 26-35 47th Avenue | Long Island city | NY | 11101 | 718-706-0707 |
| Weickert Industries | TABB Contractor | 3/31/2023 | 26-35 47th Avenue | Long Island city | NY | 11101 | 718-706-0707 |
| Limbach Company LLC | Smoke Control Systems Contractor | 9/30/2022 | 822 Cleveland Ave | Columbus | OH | 43201 | 614-299-2175 |
| Advanced Testing, Balancing and Energy Consulting | TABB Contractor | 3/31/2023 | 657 Meeker Ave | Brooklyn | NY | 11222 | 201-726-8604 |
| Air Concepts Inc. | Fire and Smoke Damper Contractor | 3/31/2024 | 2804-B Old Rogers Rd | Bristol | PA | 19007 | 215-788-2880 |
| Airtest Co. LLC | Smoke Control Systems Contractor | 9/30/2022 | 6405 218th St SW, Suite 301 | Mountlake Terrace | WA | 98043 | 4253130172 |
| International Test & Balance, Inc. | TABB Contractor | 3/31/2023 | 2100 Sanders Rd. | North Brook | IL | 60062 | (847) 759-1800 |
| PSF Mechanical | TABB Contractor | 6/30/2023 | 11621 E marginal Way S | Tukwila | WA | 98168 | 2532219355 |
| Air Management Industries | TABB Contractor | 9/30/2022 | 8351 Elm Avenue Ste 102 | Rancho Cucamonga | CA | 91730 | 909-945-0041 |
| Flow Dynamic Balancing, LLC | TABB Contractor | 9/30/2022 | 130 lake street | Amery | WI | 54001 | 612-578-9485 |
| Flow Dynamic Balancing, LLC | TABB Commissioning Contractor | 9/30/2022 | 130 lake street | Amery | WI | 54001 | 612-578-9485 |
| Emcor Scalise Industries | Fire and Smoke Damper Contractor | 3/31/2023 | 55 park dr | Lawrence | PA | 15055 | 724-746-5400 |
