| Company | Category | Area | Address | Web | E-mail | Contact person |
| POWERHOUSE GYM MADISON HEIGHTS | Physical Fitness Facility | Michigan | 1461 W 14 MILE RD, MADISON HTS, Oakland, Michigan, 48071-1055, USA |
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George Shaouni |
| POWERHOUSE GYM OF CARDIFF | Physical Fitness Facility | Michigan | 4601 STRANDWYCK RD, W BLOOMFIELD, Oakland, Michigan, 48322-4419, USA |
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Hani Gappy |
| POWERHOUSE GYM OF DE WITT | Health Clubs Studios & Gymnasi | Michigan | 12900 S US HIGHWAY 27 # 10, DEWITT, Clinton, Michigan, 48820-8340, USA |
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Ted Day |
| POWERHOUSE GYM OF E LANSING | Physical Fitness Ct | Michigan | 435 E GRAND RIVER AVE, EAST LANSING, Ingham, Michigan, 48823-4456, USA |
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RANDY SITTO |
| POWERHOUSE GYM OF E LANSING | Gymnasiums | Michigan | 435 E GRAND RIVER AVE, EAST LANSING, Ingham, Michigan, 48823-4456, USA |
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Thomas Ostrander |
| POWERHOUSE GYM OF GRAND HAVEN | Physical Fitness Facility | Michigan | 1840 172ND AVE, GRAND HAVEN, Ottawa, Michigan, 49417-8931, USA |
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Mark Priol |
| POWERHOUSE GYM OF KALAMAZOO | Physical Fitness Facility | Michigan | 5033 W MAIN ST, KALAMAZOO, Kalamazoo, Michigan, 49009-1001, USA |
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Bob Smilanich |
| POWERHOUSE GYM OF KALAMAZOO | Physical Fitness Facility | Michigan | 5434 GULL RD, KALAMAZOO, Kalamazoo, Michigan, 49048-1015, USA |
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Mark Lewis |
| POWERHOUSE GYM OF KALAMAZOO | Physical Fitness Facility | Michigan | 6051 CONSTITUTION BLVD, PORTAGE, Kalamazoo, Michigan, 49024-1613, USA |
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Todd Sullivan |
| POWERHOUSE GYM OF LIVONIA | Physical Fitness Facility | Michigan | 17235 MIDDLEBELT RD, LIVONIA, Wayne, Michigan, 48152-3609, USA |
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Alan Karana |
