| O'Hooley's Pub and Brewery |
 | | Location: | OH, US | | Phone: | 740-592-9686 | | System Size: | 7 Barrel | | Established: | 1997 |
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| Old Boys Brewhouse |
| | Location: | MI, US | | Phone: | 616-847-4287 | | System Size: | 10 Barrel | | Established: | 1998 |
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| Old Englewood Brewing Co |
| | Location: | FL, US | | Phone: | 941-473-4233 | | System Size: | 10 Barrel | | Established: | 1996 |
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| Olde Peninsula Brewpub |
| | Location: | MI, US | | Phone: | 616-343-2739 | | System Size: | 7 Barrel | | Established: | 1997 |
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| Palos de Moguer |
| | Location: | CALI, COLOMBIA | | Phone: | 011 572660 2841 | | System Size: | 5 Barrel | | Established: | 1998 |
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| Pinchpenny Pub / Copper Dragon |
| | Location: | IL, US | | Phone: | 618-549-3348 | | System Size: | 7 Barrel | | Established: | 1997 |
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| Pivnaya Master Brew |
| | Location: | Alma Aty, Kazachstan | | Phone: | 7-327-253-3209 | | System Size: | 15 Barrel | | Established: | 1997 |
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| Pumphouse Brewery |
| | Location: | NB, CANADA | | Phone: | 506-384-6213 | | System Size: | 7 Barrel | | Established: | 1999 |
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| Quay St. Brewery |
| | Location: | MI, US | | Phone: | 810-485-3195 | | System Size: | 7 Barrel | | Established: | 1998 |
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| Quidi Vidi Brewing Co |
| | Location: | NF, Canada | | Phone: | 709-739-7676 | | System Size: | 20 Barrel | | Established: | 1998 |
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| Rebecca and Eugenes Coffe House |
| | Location: | GA, US | | Phone: | 770-947-8788 | | System Size: | 7 Barrel | | Established: | 1998 |
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| Red Wood Lodge |
| | Location: | MI, US | | Phone: | 810-239-1048 | | System Size: | 15 Barrel | | Established: | 1997 |
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| Rocky Top Brewing Co |
| | Location: | TN, US | | Phone: | 423-428-4416 | | System Size: | 20 Barrel | | Established: | 1998 |
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| Rogues Roost Ale House |
| | Location: | NS, CANADA | | Phone: | 902-425-3051 | | System Size: | 7 Barrel | | Established: | 1997 |
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| Saint Arnold Brewing Co |
| | Location: | TX, US | | Phone: | 713-686-9494 | | System Size: | 30 Barrel | | Established: | 1996 |
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