| Company | Category | Area | Address | Web | E-mail | Contact person |
| IRWIN HALL ASPHALT DIV | Asphalt & Asphalt Products | Colorado | 11401 COUNTY ROAD 9 3/4, LONGMONT, Boulder, Colorado, 80504-9722, USA |
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Irwin Hall |
| IRWIN HALLMARK | Gift Shops | Ohio | 6193 GENDER RD, CANAL WNCHSTR, Fairfield, Ohio, 43110-2003, USA |
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Bill Irwin |
| IRWIN HALLMARK | Ret Gifts/novelties | Ohio | 7393 STATE ROUTE 3, WESTERVILLE, Delaware, Ohio, 43082-8654, USA |
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| IRWIN HARDWARE | Ret Hardware | Ohio | 8161 CENTER ST, GARRETTSVILLE, Portage, Ohio, 44231-1201, USA |
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James Irwin |
| IRWIN HEATING & AIR | Air Conditioning Contractors & | Oklahoma | 213 S E ST, CARMEN, Alfalfa, Oklahoma, 73726-3800, USA |
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Kevin Irwin |
| IRWIN HEATING & AIR | Air Conditioning Contractors & | Oklahoma | 213 S E ST, CARMEN, Alfalfa, Oklahoma, 73726-3800, USA |
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Kevin Irwin |
| IRWIN HEATING & AIR COND INC | Heating Equipment & Systems (W | Pennsylvania | 123 NEMIC RD, IRWIN, Westmoreland, Pennsylvania, 15642-5032, USA |
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Sandra Glister |
| IRWIN HELLER | Medical Doctor's Office | Illinois | 5909 N VIRGINIA AVE, CHICAGO, Cook, Illinois, 60659-3722, USA |
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Irwin Heller |
| IRWIN HIGH SCHOOL | Element, Secon Schl | California | 20384 GEER AVE, HILMAR, Merced, California, 95324-9722, USA |
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JOHN MINER |
| IRWIN HOFFMAN | Medical Doctors Off | Illinois | 55 E WASHINGTON ST STE 2200, CHICAGO, Cook, Illinois, 60602-2218, USA |
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