EX-21.1 4 h94489ex21-1.txt SUBSIDIARIES OF THE COMPANY EXHIBIT 21.1 COMFORT SYSTEMS USA, INC. LIST OF SUBSIDIARIES
ENTITY STATE OF NUMBER NAME OF ENTITY ORGANIZATION ------ -------------------------------------- ------------- 1. ACI Mechanical, Inc. Delaware 2. ARC Comfort Systems USA, Inc. Delaware 3. Accurate Air Systems, L.P. Texas 4. Accu-Temp GP, Inc. Delaware 5. Accu-Temp LP, Inc. Delaware 6. Accu-Temp, LLC Indiana 7. Air Solutions USA, Inc. Delaware 8. Air Temp, Inc. Delaware 9. Atlas-Accurate Holdings, L.L.C. Delaware 10. Atlas Air Conditioning Company, L.P. Texas 11. Batchelor's Mechanical Contractors, Inc. Alabama 12. BCM Controls Corporation Massachusetts 13. Carson Brothers, Inc. Montana 14. CEL, Inc. (Casey Electric) Delaware 15. Comfort Systems USA (Arkansas), Inc. Delaware 16. Comfort Systems USA (Bristol), Inc. Delaware 17. Comfort Systems USA (Cleveland), Inc. Ohio 18. Comfort Systems USA (Florida), Inc. Florida 19. Comfort Systems USA G.P., Inc. Delaware 20. Comfort Systems USA (Hartford), Inc. 21. Comfort Systems USA (Intermountain), Inc. Utah 22. Comfort Systems USA National Service Organization, Inc. Delaware 23. Comfort Systems USA (Oregon), Inc. Delaware 24. Comfort Systems USA (South Boston), Inc. Delaware 25. Comfort Systems USA (Syracuse), Inc. New York 26. Comfort Systems USA (Western Michigan), Inc. Michigan 27. Comfort Systems USA (Texas), L.P. Texas 28. Comfort Systems USA (Twin Cities), Inc. Minnesota 29. CS44 Acquisition Corp. [Edmonds/Service Refrigeration] Delaware 30. Design Mechanical Incorporated Delaware 31. Eastern Heating & Cooling, Inc. New York 32. Eastern Refrigeration Co., Inc. New York 33. ESS Engineering, Inc. Delaware 34. FIX Reinsurance Corporation Vermont 35. Gulfside Mechanical, Inc. Delaware 36. H & M Mechanical, Inc. Delaware 37. Helm Corporation Colorado 38. Helm Corporation San Diego California
COMFORT SYSTEMS USA, INC. LIST OF SUBSIDIARIES
ENTITY STATE OF NUMBER NAME OF ENTITY ORGANIZATION ------ -------------------------------------- ------------- 39. Hess Mechanical Corporation Delaware 40. Industrial Cooling Inc. Delaware 41. J & J Mechanical, Inc. Kentucky 42. James Air Conditioning Enterprise Inc. Puerto Rico 43. Martin Heating, Inc. Wyoming 44. Mechanical Technical Services, L.P. Texas 45. MJ Mechanical Services, Inc. Delaware 46. Neel Mechanical Contractors, Inc. Delaware 47. North American Mechanical, Inc. Delaware 48. OK Sheet Metal and Air Conditioning, Inc. Delaware 49. Plant Services Incorporated Iowa 50. Quality Air Heating & Cooling, Inc. Michigan 51. RMC2 Mechanical Systems, Inc. California 52. S&K Air Conditioning Co., Inc. Georgia 53. S. I. Goldman Company, Inc. Delaware 54. S.M. Lawrence Company, Inc. Tennessee 55. SA Associates, Inc. (fka Salmon & Alder, Inc.) Utah 56. Salmon & Alder, LLC Utah 57. Seasonair, Inc. Maryland 58. Sheren Plumbing & Heating, Inc. Delaware 59. Southern Bluegrass Mechanical, Inc. Delaware 60. Standard Heating & Air Conditioning Company Alabama 61. Superior Mechanical Systems, Inc. Delaware 62. Target Construction, Inc. Delaware 63. Temp-Right Service, Inc. Delaware 64. The Capital Refrigeration Company Delaware 65. Tri-City Mechanical, Inc. Arizona 66. Troost Service Co. Michigan 67. United Environmental Services, L.P. Texas 68. Weather Engineering, Inc. Delaware 69. Western Building Services, Inc. Colorado