Giants Breakdown | ||||||||||||
| Rank | Company/Location | Current Revenue | HVAC | Plumbing | Refrigeration | Fire Protection | Water/Waste Water Treatment | Piping | Sheet Metal | Controls/ TAB | Other | |
| 1 | 1 | EMCOR Group Inc.,Norwalk, Conn. | 1,848.00 | 646.80 | 443.52 | 110.88 | 55.44 | 129.36 | 129.36 | 221.76 | 0.00 | 110.88 |
| 2 | 3 | Comfort Systems USA Inc., Houston | 819.55 | 606.47 | 106.54 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 57.37 | 49.17 |
| 3 | 4 | American Residential Services/AMS/ Rescue Rooter, Downers Grove, Ill. | 690.50 | 310.73 | 310.73 | 0.00 | 0.00 | 69.05 | 0.00 | 0.00 | 0.00 | 0.00 |
| 4 | 2 | Lennox Retail/Service Experts, Richardson, Texas | 611.70 | 611.70 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| 5 | 7 | Kinetic Systems Inc., Union City, Calif. | 452.00 | 54.24 | 18.08 | 0.00 | 0.00 | 0.00 | 361.60 | 0.00 | 4.52 | 13.56 |
| 6 | 6 | Limbach Facility Services, Pittsburgh | 448.80 | 179.52 | 44.88 | 4.49 | 0.00 | 0.00 | 89.76 | 89.76 | 22.44 | 17.95 |
| 7 | 11 | FirstEnergy Facilities Services Group, Akron, Ohio | 398.00 | 79.60 | 79.60 | 0.00 | 0.00 | 0.00 | 79.60 | 79.60 | 79.60 | 0.00 |
| 8 | 9 | PPL Energy Services Holdings LLC, Allentown, Pa. | 380.44 | 95.11 | 95.11 | 0.00 | 0.00 | 0.00 | 95.11 | 95.11 | 0.00 | 0.00 |
| 9 | 15 | Residential Services Group, Dayton, Ohio | 350.00 | 87.50 | 87.50 | 0.00 | 0.00 | 0.00 | 0.00 | 70.00 | 70.00 | 35.00 |
| 10 | 16 | Southland Industries, Irvine, Calif. | 342.00 | 102.60 | 34.20 | 0.00 | 17.10 | 0.00 | 85.50 | 99.18 | 3.42 | 0.00 |
| 11 | 14 | ACCO Engineered Systems Inc., Glendale, Calif. | 315.00 | 157.50 | 0.00 | 0.00 | 0.00 | 0.00 | 15.75 | 94.50 | 31.50 | 15.75 |
| 12 | 13 | Roto-Rooter, Cincinnati | 276.61 | 2.77 | 273.84 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| 13 | 17 | TDIndustries, Dallas | 248.00 | 119.04 | 74.40 | 0.00 | 0.00 | 0.00 | 37.20 | 0.00 | 0.00 | 17.36 |
| 14 | 18 | John J. Kirlin Inc., Rockville, Md. | 223.00 | 44.60 | 55.75 | 0.00 | 0.00 | 33.45 | 55.75 | 11.15 | 22.3 | 0.00 |
| 15 | 12 | KeySpan Energy Services, Brooklyn, N.Y. | 193.92 | 48.48 | 19.39 | 0.00 | 0.00 | 0.00 | 48.48 | 38.78 | 19.39 | 19.39 |
| 16 | 22 | Sauer Inc., Pittsburgh | 188.00 | 37.60 | 56.40 | 0.00 | 0.00 | 0.00 | 56.40 | 0.00 | 0.00 | 37.60 |
| 17 | 27 | Beutler Corp., McClellan Park, Calif. | 187.00 | 145.86 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 37.40 | 0.00 | 3.74 |
| 18 | 21 | MMC Corp., Leawood, Kan. | 185.90 | 55.77 | 18.59 | 0.00 | 0.00 | 18.59 | 55.77 | 18.59 | 0.00 | 18.59 |
| 19 | 20 | Cal-Air Inc., Whittier, Calif. | 180.00 | 180.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| 20 | 26 | Therma Inc., San Jose, Calif. | 179.40 | 44.85 | 26.91 | 0.00 | 0.00 | 0.00 | 35.88 | 35.88 | 17.94 | 17.94 |
| 21 | 24 | Chas Roberts Air Conditioning Inc., Phoenix | 172.80 | 172.80 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| 22 | 19 | Murphy Co. Mechanical Contractors & Engineers, St. Louis | 163.30 | 48.99 | 13.06 | 3.27 | 0.00 | 0.00 | 81.65 | 16.33 | 0.00 | 0.00 |
| 23 | 30 | J.F. Ahern Co., Fond du Lac, Wis. | 158.96 | 11.13 | 6.36 | 0.00 | 65.17 | 23.84 | 34.97 | 9.54 | 0.00 | 7.95 |
| 24 | 25 | John E. Green Co., Highland Park, Mich. | 158.00 | 38.75 | 38.75 | 0.00 | 0.00 | 0.00 | 38.75 | 38.75 | 0.00 | 0.00 |
| 25 | 10 | Exelon Services, Westchester, Ill. | 155.00 | 52.67 | 6.20 | 6.20 | 0.00 | 0.00 | 20.14 | 65.06 | 0.00 | 4.65 |
| Rank | Company/Location | Current Revenue | HVAC | Plumbing | Refrigeration | Fire Protection | Water/Waste Water Treatment | Piping | Sheet Metal | Controls/ TAB | Other | |
| 26 | 23 | Hill Mechanical Group, Chicago | 154.90 | 52.67 | 6.20 | 6.20 | 0.00 | 0.00 | 20.14 | 65.06 | 0.00 | 4.65 |
| 27 | 45 | Harder Mechanical Contractors Inc., Portland, Ore. | 140.05 | 2.80 | 5.60 | 0.00 | 0.00 | 5.60 | 112.04 | 0.00 | 0.00 | 14.00 |
| 28 | 31 | McKinstry Co., Seattle | 136.00 | 0.00 | 23.12 | 9.52 | 0.00 | 6.80 | 27.20 | 35.36 | 0.00 | 34.00 |
| 29 | 33 | S.A. Comunale Co. Inc., Barberton, Ohio | 128.80 | 10.30 | 11.59 | 0.00 | 100.46 | 0.00 | 6.44 | 0.00 | 0.00 | 0.00 |
| 30 | 34 | Harris Companies, St. Paul, Minn. | 128.00 | 17.92 | 28.16 | 1.28 | 0.00 | 23.04 | 25.60 | 25.60 | 6.40 | 0.00 |
| 31 | 28 | JH Kelly LLC, Longview, Wash. | 127.00 | 25.40 | 31.75 | 0.00 | 0.00 | 0.00 | 63.50 | 0.00 | 6.35 | 0.00 |
| 32 | 32 | U.S. Engineering Co., Kansas City, Mo. | 115.60 | 28.90 | 16.18 | 0.23 | 0.00 | 0.35 | 60.11 | 8.09 | 1.16 | 0.58 |
| 33 | NA | Thomas J. Dyer Co., Cincinnati | 115.16 | 28.79 | 29.94 | 0.23 | 0.00 | 0.35 | 46.06 | 8.06 | 1.15 | 0.58 |
| 34 | 39 | John W. Danforth Co., Buffalo, N.Y. | 103.60 | 18.65 | 15.54 | 10.36 | 0.00 | 20.72 | 25.90 | 10.36 | 2.07 | 0.00 |
| 35 | 54 | McKenney’s Inc., Atlanta | 100.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| 36 | 36 | The Coastal Group, Melbourne, Fla. | 98.10 | 22.56 | 21.58 | 1.96 | 0.00 | 0.00 | 21.58 | 14.72 | 0.98 | 14.72 |
| 37 | 40 | Colonial Mechanical, Richmond, Va. | 97.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| 38 | 37 | Brandt Engineering Co. Inc., Dallas | 94.00 | 50.76 | 14.10 | 0.00 | 0.00 | 0.00 | 18.80 | 9.40 | 0.94 | 0.00 |
| 39 | 56 | A.O. Reed & Co., San Diego | 93.25 | 30.77 | 30.77 | 0.00 | 0.00 | 0.00 | 31.71 | 0.00 | 0.00 | 0.00 |
| 40 | 48 | Ivey Mechanical, Kosciusko, Miss. | 92.40 | 23.10 | 23.10 | 0.00 | 0.00 | 0.00 | 23.10 | 23.10 | 0.00 | 0.00 |
| 41 | 44 | Corrigan Co., St. Louis | 92.30 | 27.69 | 9.23 | 0.00 | 0.00 | 0.00 | 55.38 | 0.00 | 0.00 | 0.00 |
| 42 | 52 | VSC/Virginia Sprinkler Corp., Ashland, Va. | 91.10 | 0.00 | 0.00 | 0.00 | 91.10 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| 43 | 43 | Herman Goldner Co. Inc., Philadelphia | 90.50 | 22.63 | 22.63 | 0.00 | 0.00 | 0.00 | 22.63 | 22.63 | 0.00 | 0.00 |
| 44 | 63 | Kirk & Blum, Cincinnati | 89.70 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 89.70 | 0.00 | 0.00 |
| 45 | 42 | Stanley Jones Corp., South Fulton, Tenn. | 89.65 | 31.38 | 31.38 | 0.00 | 0.00 | 0.00 | 8.97 | 13.45 | 0.00 | 0.90 |
| 46 | 38 | Lee Co., Franklin, Tenn. | 87.19 | 17.44 | 21.80 | 4.36 | 0.00 | 0.00 | 17.44 | 26.16 | 0.00 | 0.00 |
| 47 | 46 | Nashville Machine Co. Inc., Nashville, Tenn. | 86.00 | 25.80 | 11.18 | 0.00 | 0.00 | 0.00 | 17.20 | 14.62 | 0.00 | 17.20 |
| 48 | 47 | Hooper Corp., Madison, Wis. | 86.00 | 21.50 | 21.50 | 0.00 | 0.00 | 0.00 | 21.50 | 21.50 | 0.00 | 0.00 |
| 49 | 50 | R.K. Mechanical Inc., Denver | 84.30 | 25.29 | 18.55 | 1.69 | 0.00 | 0.00 | 16.86 | 16.44 | 5.48 | 0.00 |
| 50 | 61 | |||||||||||