Here are the companies who have been members of ACCA for more than three decades. We are honored and humbled to be associated with true industry greats like these.

Metzger's Inc (Kalamazoo, MI  USA) (01/01/1962)

Home Air Services (Rockville, MD  USA) (01/01/1964)

Krafft Air Conditioning Service Corp. (Alexandria, VA  USA) (01/01/1964)

ARS of Manassas (Manassas, VA  USA) (01/01/1964)

Condon-Reed, Inc. (Falls Church, VA  USA) (01/01/1964)

Richard's Heating & Air Conditioning, Inc. (Falls Church, VA  USA) (01/01/1964)

Adrian L Merton, Inc. (Capitol Heights, MD  USA) (01/01/1967)

McCrea Equipment (Temple Hills, MD  USA) (01/01/1967)

Schneider Heating & Air Conditioning (Onalaska, WI  USA) (01/01/1972)

Seasonair, Inc. (Gaithersburg, MD  USA) (01/01/1973)

Hauck Brothers Inc. (Springfield, OH  USA) (01/01/1973)

Indoor Comfort, Inc. (Jacksonville, FL  USA) (01/01/1973)

Atlas Butler Heating & Cooling (Columbus, OH  USA) (01/01/1973)

Dring Air Conditioning & Heating Inc (Dallas, TX  USA) (01/01/1973)

Windau Inc (Sandusky, OH  USA) (01/01/1973)

Parker's Heating & Air Conditioning Inc. (Americus, GA  USA) (01/01/1973)

Climate Engineering Inc (Denver, CO  USA) (01/01/1973)

Frymire Services, Inc. (Dallas, TX  USA) (01/01/1973)

Dallas Plumbing Co (Dallas, TX  USA) (01/01/1973)

C.L. Linfoot Co. (Grand Forks, ND  USA) (01/01/1973)

Isaac Heating & Air Conditioning, Inc. (Rochester, NY  USA) (01/01/1973)

State Board of Examiners of Plumbing Heating & Fire Contractors (Raleigh, NC  USA) (01/01/1973)

Climate Heating & Cooling (Springfield, VA  USA) (01/01/1973)

Waller Heating & Air Conditioning Co (Valdosta, GA  USA) (01/01/1973)

Hickory Sheet Metal Co., Inc. (Hickory, NC  USA) (01/01/1973)

Arlington Heating & Air Conditioning (Arlington, VA  USA) (01/01/1974)

Summers & Zim's, Inc. (Atglen, PA  USA) (01/01/1974)

Owens Companies Inc (Bloomington, MN  USA) (01/01/1974)

Gillette Air Conditioning (San Antonio, TX  USA) (01/01/1974)

Airtron (San Antonio, TX  USA) (01/01/1974)

AirRite Air-Conditioning Company (Fort Worth, TX  USA) (01/01/1974)

James Lane Air Conditioning Co. (Wichita Falls, TX  USA) (01/01/1974)

Lee Company (Franklin, TN  USA) (01/01/1974)

American Heating & Cooling, Inc. (Nashville, TN  USA) (01/01/1974)

Busby's Heating & Air (Augusta, GA  USA) (01/01/1974)

John C Cassidy Air Conditioning Inc. (Riviera Beach, FL  USA) (01/01/1974)

Keith Air Conditioning, Inc. (Mobile, AL  USA) (01/01/1974)

Climate Control LLC (Mobile, AL  USA) (01/01/1974)

Hallmark Air Conditioning, Inc. (Houston, TX  USA) (01/01/1974)

Atlantic Heating & Air Conditioning Co., Inc. (Brookline, MA  USA) (01/01/1974)

Favret Co (Columbus, OH  USA) (01/01/1974)

White Heating Inc (Pittsburgh, PA  USA) (01/01/1974)

Boehmer Heating & Cooling (Pittsburgh, PA  USA) (01/01/1974)

ARC Electric Air Conditioning & Heating, Inc. (Wilder, KY  USA) (01/01/1974)

Rusk Heating & Cooling, Inc. (Covington, KY  USA) (01/01/1974)

Arctic Air, Inc. (Royal Oak, MI  USA) (01/01/1974)

Seaman's Air Conditioning & Refrigeration, Inc. (Grand Rapids, MI  USA) (01/01/1974)

Bob Mims Heating & Air Conditioning (Staten Island, NY  USA) (01/01/1974)

Caswell & Son Corp (Winnisquam, NH  USA) (01/01/1974)

P K Wadsworth Heating & Cooling, Inc. (Solon, OH  USA) (01/01/1974)

Ray F Chaney (Baltimore, MD  USA) (01/01/1974)

Jack Lehr Heating Cooling and Electric (Allentown, PA  USA) (01/01/1974)

Henry Heating & Cooling Inc (Dover, OH  USA) (01/01/1974)

Air Group (Whippany, NJ  USA) (01/01/1974)

Berkeley Heating & Air Conditioning Co. (Gillette, NJ  USA) (01/01/1974)

Weber & Grahn Conditioning Corp. (Hampton Bays, NY  USA) (01/01/1975)

Standard Refrigerators Inc. (Long Island City, NY  USA) (01/01/1975)

TD Industries, Inc. (Dallas, TX  USA) (01/01/1975)

Carpenter Furnace Company (Ogden, UT  USA) (01/01/1975)

Gulf Power Co. (Pensacola, FL  USA) (01/01/1975)

Contractors Heating & Cooling Inc (Nashville, TN  USA) (01/01/1975)

The Lee Thompson Co. (Houston, TX  USA) (01/01/1975)

Southeast Community College (Milford, NE  USA) (01/01/1975)

E. M. Logan & Sons, Inc. (Woodbridge, VA  USA) (01/01/1975)

American Weathermakers, Inc. (Northbrook, IL  USA) (01/01/1975)

Air Comfort Corporation (Broadview, IL  USA) (01/01/1975)

Pipco Air Conditioning & Heating Co., Inc. (Timonium, MD  USA) (01/01/1976)

Bon Air Service Co., Inc. (Grand Prairie, TX  USA) (01/01/1976)

Davis & Davis Heating & Air Conditioning, Inc. (Kensington, MD  USA) (01/01/1977)

Allied Phillips, Inc. (Edgewood, MD  USA) (01/01/1977)

Eberts Energy Center (Mansfield, OH  USA) (01/01/1977)

A. B. May Sales & Service Co., Inc. (Leawood, KS  USA) (01/01/1977)

Gunther's Comfort Air (American Fork, UT  USA) (01/01/1977)

Big Tex Heating & Air Conditioning, Inc. (Houston, TX  USA) (01/01/1978)

County Wide Service Co. (San Antonio, TX  USA) (01/01/1978)

Bob Baker's Golden Service Inc. (Bowie, MD  USA) (01/01/1978)

H & C Inc. (Laurel, MD  USA) (01/01/1978)

County Fair Air Conditioning Corp. (Westbury, NY  USA) (01/01/1978)

Dualco, Inc. (Sterling, VA  USA) (01/01/1978)

M & M Mechanical, Inc. (Newington, VA  USA) (01/01/1978)

Valley Heating & Air Conditioning Inc. (McMurray, PA  USA) (01/01/1978)

Admiral Heating & Cooling Co. (Pittsburgh, PA  USA) (01/01/1978)

Alford Air Conditioning, Inc. (Tequesta, FL  USA) (01/01/1978)

Airways Unlimited Inc (Silver Spring, MD  USA) (02/01/1978)

Dick's Air Conditioning & Heating, Inc. (Fort Washington, MD  USA) (03/01/1978)

P & M Heating & Air Conditioning Co. (Houston, TX  USA) (01/01/1979)

TESST College of Technology (Baltimore, MD  USA) (01/01/1979)

Donald P Dick Air Conditioning Inc. (Fresno, CA  USA) (01/01/1979)

Meyer & Depew Co., Inc. (Kenilworth, NJ  USA) (01/01/1979)

Controlled Climate Systems Inc (Canonsburg, PA  USA) (01/01/1979)

Max C Smith Co (Gibsonia, PA  USA) (01/01/1979)

L S Hafer Heating & Cooling (Bethel Park, PA  USA) (01/01/1979)

John Betlem Inc (Rochester, NY  USA) (01/01/1979)

Tom Muse Service Co. (Vienna, VA  USA) (01/01/1979)

Powers Service Co., Inc. (Cedar Grove, NJ  USA) (01/01/1979)

Bay Temperature Control, Inc. (Baytown, TX  USA) (01/01/1979)

Professional Electric, Inc. ATA Prolec (Alexandria, VA  USA) (01/01/1979)

Care Service Co., Inc. (Houston, TX  USA) (01/01/1979)

NARS Training Systems (Huntsville, AL  USA) (01/01/1979)

Turner Spring Branch Air Conditioning & Heating (Houston, TX  USA) (01/01/1979)

Wolverton Co Inc (Duncanville, TX  USA) (01/01/1979)

Kahn Mechanical Contractors (Dallas, TX  USA) (01/01/1979)

Chason Service Engineers, Inc. (Timonium, MD  USA) (01/01/1980)

Comfort-Air Engineering (San Antonio, TX  USA) (01/01/1980)

Wright Brothers (Hampton, GA  USA) (01/01/1980)

Waddell Heating & Sheet Metal (Spirit Lake, IA  USA) (01/01/1980)

Thermo Products, LLC (North Judson, IN  USA) (01/01/1980)

Day & Night Heating & Cooling Co. (Novi, MI  USA) (01/01/1980)

B & B Air Conditioning & Heating Service Co. Inc. (Rockville, MD  USA) (01/01/1980)

Entek Corporation (Longview, WA  USA) (01/01/1980)

Dynatemp, Inc. (Silver Spring, MD  USA) (05/01/1980)