| Advanced Mechanical & Hvac, LLC | Bellmore | NY | $1.09M |
| Applied Industrial Systems LLC | Deer Park | WA | $1.08M |
| Practical Energy Partner, LLC | Star | ID | $1.08M |
| GRG Sanders & Co. | Lubbock | TX | $1.07M |
| John R Seiberlich Inc. | New Castle | DE | $1.07M |
| Linn's Plumbing LLC | Chandler | OK | $1.07M |
| Mark Zimmer | Grant | MI | $1.07M |
| RSC Electrical & Mechanical Contractors, Inc. | Washington | DC | $1.06M |
| A & E Heating And Air Conditioning LLC | Washington | DC | $1.05M |
| Metro Mechanical Contractors, Inc. | Memphis | TN | $1.05M |
| Joint Resources Solutions LLC | Chesapeake | VA | $1.04M |
| WHD, LLC | Andover | OH | $1.03M |
| JWS Refrigeration & Air Conditioning, Ltd. | Tamuning | GU | $1.03M |
| Service First Gp (pty) Ltd. | Johannsburg | GAUTENG | $1.01M |
| Erv Smith Services, Inc. | Eau Claire | WI | $999K |
| Palmetto Air & Chiller Service Inc. | West Columbia | SC | $999K |
| Southland Industries | Garden Grove | CA | $988K |
| Reliable Air Conditioning Inc. | Mesa | AZ | $982K |
| Howa Sangyo Co.,ltd | Naka-ku Yokohama-shi | | $980K |
| Fire Fighter Sales And Service Co. | Warrendale | PA | $977K |
| Mcdonald Construction Services, Inc. | Fort Walton Beach | FL | $974K |
| Maxxen Group LLC | Centreville | VA | $972K |
| Mechworks LLC | New Orleans | LA | $966K |
| M & L Mechanical Of Ny Inc. | Smithtown | NY | $948K |
| Rafcontracting Inc. | Miami | FL | $946K |
| Air Balancing Engineers Inc. | Berwick | PA | $943K |
| Wait Mechanical Inc. | Arlington | TX | $943K |
| Silverbacq LLC | Bakersfield | CA | $939K |
| Warwick Plumbing & Heating Corp. | Newport News | VA | $930K |
| Total Maintenance Inc. | Bettendorf | IA | $929K |
| Nor-well Co. Inc. | Elizabethton | TN | $928K |
| Sistemas De Refrigeracion Industrial Climati Sl | Madrid | MADRID | $925K |
| Renovair Genie Climatique | Chatillon | ILE-DE-FRANCE | $924K |
| Composite Cooling Solutions, L.P. | Aledo | TX | $917K |
| Facility Engineering Services Corp. | Reisterstown | MD | $916K |
| Penn Air Control Inc. | Cypress | CA | $914K |
| Advanced Filtration Concepts Inc. | Norwalk | CA | $913K |
| Centerline Plumbing & Mechanical, Inc. | San Diego | CA | $907K |
| Gm 3 S.R.L. | Isola Vicentina | VIR | $904K |
| Emcor Services Team Mechanical, Inc. | Buffalo Grove | IL | $897K |
| Wadsworth Service, Inc. | Perrysburg | OH | $881K |
| Jada Contracting & Construction LLC | Bogata | TX | $880K |
| Geyer Fire Protection LLC | Indianapolis | IN | $879K |
| R Brooks Mechanical Heating And Air Conditioning LLC | Rising Sun | MD | $875K |
| Pro-mechanical LLC | Oak Grove | MO | $861K |
| First Plumbing Solutions, Inc. | West Deptford | NJ | $858K |
| Hunter Mechanical & Controls, Inc. | Oklahoma City | OK | $848K |
| Macdonald-miller Facility Solutions LLC | Seatac | WA | $846K |
| Eni Mechanical, Inc. | Gouverneur | NY | $842K |
| F. M. Thomas Air Conditioning, Inc. | Brea | CA | $816K |
| Mannon Mechanical LLC | Ocean Springs | MS | $797K |
| Stephens Construction, Inc. | Arnold | CA | $791K |
| Alpha Mechanical Service LLC | Louisville | KY | $789K |
| Intek Construction Corp. | Ward | AR | $777K |
| Cbre GWS Technical Division S.R.L. | Montesilvano | PER | $773K |
| Unlimited Support Services LLC | Orange | TX | $770K |
| Mcdevitt & Sons Plumbing & Heating, Inc. | Severn | MD | $768K |
| Harold G. Butzer, Inc. | Jefferson City | MO | $765K |
| Arktic Temp Of Mississippi, LLC | Biloxi | MS | $758K |
| Compliant Systems LLC | Albuquerque | NM | $758K |
| Advanced Mechanical Services, LLC | Tucson | AZ | $754K |
| Maccarone Plumbing Inc. | Glen Cove | NY | $751K |
| Commercial Air Services Inc. | Gilroy | CA | $746K |
| Boundless Management Outsourcing Group LLC | San Juan | PR | $743K |
| Divco Inc. | Spokane | WA | $741K |
| THD Contracting Service LLC | Philadelphia | PA | $739K |
| Pueblo Mechanical And Controls, LLC | Phoenix | AZ | $739K |
| Today Plumbing Services Corp. | Bayamon | PR | $738K |
| Williams Mechanical LLC | Kingston Springs | TN | $734K |
| Fm International Inc. | Toledo | OH | $731K |
| Sanken Setsubi Kogyo Co. Ltd. | Chuo-ku | TOKYO | $728K |
| N-demand Test And Balance, LLC | Albuquerque | NM | $728K |
| Emerson Boiler, Inc. | Peoria | AZ | $727K |
| Commercial Air, Inc. | Little Rock | AR | $727K |
| American Energy Management LLC | Westborough | MA | $722K |
| Specialty Heating Services LLC | Jackson | MS | $718K |
| Chickasaw Solutions, LLC | Brandon | MS | $714K |
| Installatiebedrijf Embrechts B.v. | Landgraaf | | $711K |
| CSP Utilities LLC | Waco | TX | $710K |
| Aaron Plumbing & Heating Co. | Fairbanks | AK | $704K |
| Midwest Machinery Co. | Chesterfield | MO | $704K |
| Clipper Pipe & Service Inc. | Eddystone | PA | $699K |
| Streets, LLC | Oklahoma City | OK | $681K |
| Blueice Engineering LLC | Irvine | CA | $681K |
| Jamoa Enterprise LLC | Tamarac | FL | $674K |
| Christway Construction Company, LLC | Houston | TX | $674K |
| H M S Incorporated | Vancleave | MS | $673K |
| Guy M Cooper Inc. | Willow Grove | PA | $673K |
| Tata Express Services LLC | Atlanta | GA | $671K |
| Professional Heating & Cooling, Inc. | Norfolk | VA | $667K |
| Mitchell & Sons Hvac Inc. | Indianapolis | IN | $665K |
| Haberberger Inc. Mechanical Contractor | Saint Louis | MO | $662K |
| Housen Health Services, Incorporated | Laurel | MD | $659K |
| BMC Services LLC | Baltimore | MD | $658K |
| Rmi Mechanical Contractor Inc. | South San Francisco | CA | $651K |
| Brown Sprinkler Corp. | Louisville | KY | $646K |
| Piedmont Service Group, LLC | Raleigh | NC | $642K |
| Apollo Sheet Metal Inc. | Kennewick | WA | $633K |
| Welch And Rushe, LLC | Upper Marlboro | MD | $632K |
| Wheeling Mechanical Inc. | Boyertown | PA | $629K |
