| Barrett Enterprises Inc. | Chalan Pago | GU | $8,815 |
| Bull-tech Services LLC | Valley Stream | NY | $8,800 |
| Farrar Filter, Co. | Paterson | NJ | $8,527 |
| Silver Creek Systems LLC | Wilbur | WA | $8,346 |
| Southern Comfort Hvac LLC | South Daytona | FL | $8,245 |
| B & B Air Conditioning & Heating Service Co. Inc. | Rockville | MD | $8,183 |
| Grinder Pump Systems, LLC | Taylor | AZ | $8,170 |
| Buffington Brothers Heating And Air Conditioning, Inc. | Poplar Bluff | MO | $8,100 |
| Lakeside Mechanical Service, Inc. | Loveland | CO | $8,046 |
| Evans Plumbing & Air Conditioning, Inc. | Hamilton | MS | $8,000 |
| Bayside Mechanical Inc. | Foster City | CA | $7,993 |
| O'dell Service Company | Kansas City | MO | $7,960 |
| New England Mechanical Services, Inc. | South Windsor | CT | $7,855 |
| Ryan Mechanical Co. | Gilbert | AZ | $7,853 |
| Climate Support Group LLC | Louisville | KY | $7,842 |
| Northwest Mechanical Group, LLC | Canby | OR | $7,829 |
| Breezin Hvac Inc. | Staten Island | NY | $7,810 |
| Monroe Hvac, Inc. | Valentine | NE | $7,785 |
| Paul's Plumbing & Appliance, Inc. | Manistique | MI | $7,772 |
| USA Mechanical, Inc. | Washougal | WA | $7,632 |
| Nexgen Hvac Services LLC | Norfolk | VA | $7,453 |
| Omega Plumbing, Inc. | Joliet | IL | $7,450 |
| Rasmussen Mechanical Services Inc. | Council Bluffs | IA | $7,425 |
| D. J. Conley Associates Inc. | Warren | MI | $7,208 |
| Metro Test And Balance Inc. | Upper Marlboro | MD | $7,072 |
| Northwest Mechanical, Inc. | Davenport | IA | $6,985 |
| Firetrol Protection Systems, Inc. | Pasadena | TX | $6,950 |
| Ambient Enterprises Holdco LLC | Berkeley Heights | NJ | $6,941 |
| Annandale Balancing Co. Inc. | Alexandria | VA | $6,900 |
| Vermont Mechanical, LLC | Williston | VT | $6,900 |
| Cold-tech Refrigeration, LLC | Draper | UT | $6,830 |
| Drain Medic, Inc. | San Diego | CA | $6,822 |
| Jb & R L Inc. | Fort Wayne | IN | $6,720 |
| Cac, Inc. | Albuquerque | NM | $6,673 |
| Fire N Ice Heating And Air Conditioning Inc. | Palmetto | FL | $6,650 |
| A3 Mechanical Inc. | Baltimore | MD | $6,565 |
| Cottongim Services, Inc. | Tifton | GA | $6,547 |
| Climate Conditioning Co. Inc. | Louisville | KY | $6,537 |
| Georgia Automatic Sprinkler Co. | Valdosta | GA | $6,480 |
| Henson Robinson Company | Springfield | IL | $6,467 |
| Coastal Plumbing & Drains LLC | Savannah | GA | $6,300 |
| Synergy Environmental Services LLC | Fort Worth | TX | $6,271 |
| Childer's Hvac Sales And Service, Inc. | Beckley | WV | $6,245 |
| Hvac Service Inc. | Glasgow | KY | $6,230 |
| Clean Ice LLC | Springfield | MO | $6,200 |
| Hranec Sheet Metal Inc. | Uniontown | PA | $6,159 |
| Hustle & Flow Plumbing LLC | Klamath Falls | OR | $6,075 |
| Jacks Refrigeration, Inc. | Alliance | NE | $5,938 |
| Dorvin D Leis Co. Inc. | Kahului | HI | $5,883 |
| Goyette Mechanical Co. Inc. | Flint | MI | $5,875 |
| Central Oregon Heating, & Cooling Inc. | Redmond | OR | $5,853 |
| Control Engineering LLC | Tempe | AZ | $5,850 |
| Thermal Air, LLC | Grand Forks | ND | $5,820 |
| Jat Mechanical, Incorporated | Albuquerque | NM | $5,757 |
| Wolf Eyes Company | Baghdad | | $5,743 |
| Jcoo, Inc. | Springfield | OR | $5,733 |
| Shook & Fletcher Mechanical Contractors, Inc. | Birmingham | AL | $5,707 |
| Metro Mechanical Inc. | Bolton | MS | $5,696 |
| Jcor Mechanical, Inc. | Golden | CO | $5,605 |
| Abd Plumbing LLC | Decatur | AL | $5,578 |
| Metis Acquisition Group LLC | Oldsmar | FL | $5,570 |
| DHK Inc. | Missoula | MT | $5,524 |
| Tobey-karg Service Agency, Incorporated | Carnegie | PA | $5,513 |
| Monona Plumbing And Fire Protection, Inc. | Madison | WI | $5,460 |
| Yavapai Mechanical, LLC | Prescott Valley | AZ | $5,336 |
| Mcelroys Inc. | Topeka | KS | $5,328 |
| Air At Your Door, Inc. | Miami | FL | $5,264 |
| Bilmark Plumbing & Heating LLC | Little Egg Harbor TWP | NJ | $5,258 |
| Abm Building Services LLC | Alexandria | VA | $5,243 |
| Apex Fire Sprinkler Company LLC | Springfield | IL | $5,125 |
| Kimco Services LLC | Lebanon | IL | $5,102 |
| Continental Fire Sprinkler Company | Omaha | NE | $5,050 |
| Rolland Reash Plumbing, Inc. | Jacksonville | FL | $5,000 |
| Countywide Mechanical Systems LLC | Phoenix | AZ | $4,995 |
| Viking Automatic Sprinkler Company | Saint Paul | MN | $4,970 |
| Classic Air, Inc. | Waldorf | MD | $4,945 |
| Air Systems Service & Construction, LLC | Folsom | CA | $4,943 |
| GHC Mechanical Services, Inc. | Macon | GA | $4,903 |
| Al's Refrigeration Inc. | Fergus Falls | MN | $4,813 |
| Umpqua Sheet Metal, Inc. | Winchester | OR | $4,813 |
| Rocky Mountain Plumbing And Sewer Pros LLC | Grand Junction | CO | $4,810 |
| Glenrose Service, Inc. | Post Falls | ID | $4,786 |
| Raks Global LLC | Hattiesburg | MS | $4,750 |
| Thomas G. Gallagher, Inc. | Waltham | MA | $4,744 |
| Dale W Hubbard Inc. | Kalamazoo | MI | $4,713 |
| 24/7 Fire Protection LLC | Odessa | MO | $4,630 |
| Woodall Plumbing Services LLC | Macon | GA | $4,616 |
| Colonial Plumbing & Heating Co. Inc. | Colonial Heights | VA | $4,600 |
| Straits Mechanical LLC | Cheboygan | MI | $4,590 |
| Harvey & Price Co. | Eugene | OR | $4,571 |
| Allen's Tri-state Mechanical, Inc. | Amarillo | TX | $4,530 |
| Backflow Guy Inc. The | Murrieta | CA | $4,470 |
| Caveman Heating & Air Conditioning | Grants Pass | OR | $4,470 |
| Ackerman Plumbing LLC | Sarasota | FL | $4,429 |
| Lovett, Inc. | Portland | OR | $4,425 |
| Ralph's Plumbing & Heating, Inc. | Minot | ND | $4,335 |
| Conditioned Air Mechanical Systems And Service Co. | Lincoln | NE | $4,200 |
| C Toyama Construction LLC | Pearl City | HI | $4,200 |
| A-mass Inc. | Richmond | VA | $4,175 |
| TWC Services, Inc. | Mableton | GA | $4,116 |
