| Holbrook Service, LLC | Salt Lake City | UT | $388K |
| Boland International, LLC | Gaithersburg | MD | $388K |
| PBBS Equipment Corporation | Menomonee Falls | WI | $386K |
| 3we Service & Supply LLC | Lebanon | PA | $385K |
| GMW Fire Protection, Inc. | Anchorage | AK | $382K |
| N R G Building Services, LLC | Steelton | PA | $380K |
| Energy Management Technologies, LLC | Latham | NY | $379K |
| Lee Mechanical Solutions, Inc. | Doddsville | MS | $378K |
| Comfort & Process Solutions, LLC | Lexington | KY | $373K |
| Antigo Refrigeration & Heating Ltd. | Antigo | WI | $373K |
| Granger Medical, Inc. | Belchertown | MA | $372K |
| Ontario Refrigeration Service, Inc. | Ontario | CA | $371K |
| Ruthrauff Sauer, LLC | Mc Kees Rocks | PA | $370K |
| Upm Mechanical, LLC | Denver | CO | $369K |
| Prime Genius | West Sacramento | CA | $369K |
| Arbutus Refrigeration, LLC | Baltimore | MD | $369K |
| Gabrielli Emanuele | Ardea | RM | $364K |
| Yown's Boiler & Furnace Service, LLC. | Jacksonville | FL | $363K |
| C.r. Hipp Construction, Inc. | Goose Creek | SC | $361K |
| Boiler Tech Inc. | Columbus | OH | $360K |
| Bimlay, LLC | Converse | TX | $357K |
| Akp Technology Inc. | Cerritos | CA | $356K |
| Reddi Services, Inc. | Shawnee | KS | $355K |
| Comfort Air Mechanical Systems, Inc. | Alameda | CA | $354K |
| Ici Mechanical LLC | Paducah | KY | $353K |
| Tustin Mechanical Services, LLC | Norristown | PA | $352K |
| Rankine And Magna Tech. Corp. | Quezon | | $351K |
| Atlanta Boiler & Mechanical, Inc. | Acworth | GA | $351K |
| Hug Corp. | West Sacramento | CA | $349K |
| Combustioneer Corporation | Lanham | MD | $347K |
| John E. Green Company | Highland Park | MI | $343K |
| Hurst, Inc. | Belmont | MI | $342K |
| Taft Plumbing Co. Inc. | Taft | CA | $340K |
| Cs Group, Inc. | Littleton | CO | $340K |
| PLS Mechanical, Inc. | New Hyde Park | NY | $339K |
| Foss Enterprises Inc. | Woodsboro | TX | $336K |
| Chillco, Inc. | Lacombe | LA | $335K |
| Valley Boiler & Mechanical, Inc. | Roanoke | VA | $335K |
| Equitech LLC | Carolina | PR | $334K |
| Islandwide Mechanical Service Inc. | Kailua Kona | HI | $333K |
| Hilo Air A/c Refrigeration LLC | Hilo | HI | $332K |
| Icosagon LLC | Conroe | TX | $330K |
| Asw Mechanical LLC | Bowie | MD | $330K |
| Eastern Heating & Cooling, Inc. | Albany | NY | $330K |
| JPG Plumbing And Mechanical, Inc. | Jessup | MD | $327K |
| Progressive Commercial Services, LLC | Raleigh | NC | $327K |
| Otterstedt & Moran LLC | Lorton | VA | $326K |
| Harris Arizona, LLC | Phoenix | AZ | $326K |
| Air Equipment Co. LLC | Irving | TX | $325K |
| Black River Plumbing Heating & Air Conditioning, Inc. | Black River | NY | $325K |
| Whesco Group Inc. | Milwaukee | WI | $324K |
| Total Mechanical Services Inc. | Saint Paul Park | MN | $322K |
| A.d.s. 02 | Tirana | | $320K |
| K.m. Facility Services, LLC | Glendale | AZ | $318K |
| Hamlin Air Conditioning & Sheet Metal, Inc. | Macon | GA | $317K |
| Boyum Mechanical, LLC | Glenshaw | PA | $316K |
| Brooks Building Solutions Inc. | Jacksonville | FL | $315K |
| Climate Engineering, Inc. | Lakewood | CO | $314K |
| Kemper Northwest, Inc. | Caldwell | ID | $314K |
| Cavalier Fire Protection, LLC | Dumfries | VA | $312K |
| Air Chiller Mechanical Constructor C.p | Caguas | PR | $312K |
| The Hiller Companies, LLC | Mobile | AL | $310K |
| Heat Transfer Solutions, Inc. | Huntington Beach | CA | $306K |
| Patriot Air Conditioning LLC | Las Vegas | NV | $306K |
| Robert Lloyd Sheet Metal, Inc. | Independence | OR | $305K |
| Remington Construction, LLC | Vienna | VA | $304K |
| David Raposa | Coventry | RI | $304K |
| Roberts Environmental Control Corp. | Tinley Park | IL | $304K |
| Professional Boiler Services, Inc. | Augusta | GA | $303K |
| C & C Mechanical Inc. | West Creek | NJ | $302K |
| Petro Plumbing And Heating, Inc. | New Windsor | NY | $300K |
| BVK Mechanical Services Inc. | Village Of Lakewood | IL | $300K |
| Ace Mechanical Services, Inc. | Indianapolis | IN | $298K |
| Ed Bartelli, Inc. | Waterford | CT | $298K |
| Antarctic Mechanical Services Inc. | Woodridge | IL | $298K |
| Acy Mechanical, LLC | Winona | MS | $298K |
| MPH, Inc. | Fargo | ND | $297K |
| Hill Mechanical Services, Inc. | Franklin Park | IL | $297K |
| GMR Heating & Air LLC | Carrollton | TX | $296K |
| Hooper Corporation | Deforest | WI | $295K |
| Warcogroup Corp. | Trujillo Alto | PR | $294K |
| Colonie Mechanical Contractors, Inc. | Colonie | NY | $293K |
| Preferred Contractors, Inc. | Pembroke | MA | $291K |
| Osung Enterprise | Pyeongtaek-si | | $291K |
| Entech Sales And Service, LLC | Dallas | TX | $291K |
| South Jersey Heat And Cool Limited Liability Company | Forked River | NJ | $290K |
| Quality Hvac Inc. | Grangeville | ID | $290K |
| RGS Mechanical LLC | Mantua | NJ | $288K |
| Battalion One Fire Protection, Inc. | San Leandro | CA | $288K |
| Alabama Mechanical Service, LLC | Grady | AL | $287K |
| Mechanical Air Design, Inc. | Greenacres | FL | $287K |
| Vance Industrial Electronics, Inc. | Burlington | NC | $286K |
| Atlantic Fabrication And Design, LLC | Oklahoma City | OK | $283K |
| Thermal Mechanical Services Inc. | Peoria | IL | $283K |
| Blueice Construction LLC | Irvine | CA | $282K |
| W. W. Gay Mechanical Contractor, Inc. | Jacksonville | FL | $282K |
| Tru Consulting Services, LLC | Mcdonough | GA | $281K |
| Harrell's Marine Mechanical, Inc. | Jacksonville | FL | $281K |
| Clean Air Co. Inc. | Fords | NJ | $280K |
| Dids Mechanical Inc. | Henryville | PA | $280K |
