| Company | Category | Area | Address | Web | E-mail | Contact person |
| IRWIN HORWITZ CPA | Accountants | Indiana | 6036 LUTE RD, PORTAGE, Porter, Indiana, 46368-5008, USA |
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Irwin Horwitz |
| IRWIN HORWITZ CPA | Accountants | Indiana | 8585 BROADWAY, MERRILLVILLE, Lake, Indiana, 46410-7064, USA |
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Irwin Horwitz |
| IRWIN HOSON METAL MFG | Metal Fabricators | Ohio | 189 OVERLOOK RD, PAINESVILLE, Lake, Ohio, 44077-5383, USA |
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| IRWIN HOTEL | Hotels & Motels | Pennsylvania | 216 MAIN ST, IRWIN, Westmoreland, Pennsylvania, 15642-3435, USA |
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Robert Carlton |
| IRWIN HOTEL | Hotels & Motels | Pennsylvania | 216 MAIN ST, IRWIN, Westmoreland, Pennsylvania, 15642-3435, USA |
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Robert Carlton |
| IRWIN HOYT PECKHAM JR | Legal Services | Michigan | 2228 INKSTER RD, INKSTER, Wayne, Michigan, 48141-1811, USA |
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| IRWIN HYMAN | Misc Services Nec | Florida | 1065 E 28TH ST, HIALEAH, Miami-Dade, Florida, 33013-3721, USA |
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