| Little Creatures Brewing Co |
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| Long Trail Brewing Co. |
 | | Location: | VA, US | | Phone: | 802-672-5011 | | System Size: | Tanks | | Established: | 1998 |
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| Mainsteet Brewing Co |
 | | Location: | MA, US | | Phone: | 508-753-6700 | | System Size: | 15 Barrel | | Established: | 1997 |
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| Malzee's Stuft Pizza |
 | | Location: | CA, US | | Phone: | 661-252-7883 | | System Size: | 7 Barrel | | Established: | 1998 |
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| Maritime Beer Co. |
 | | Location: | NS, CANADA | | Phone: | 902-468-3135 | | System Size: | 50 Barrel | | Established: | 1998 |
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| Martha's Exchange |
 | | Location: | NH, US | | Phone: | 603-883-8781 | | System Size: | 7 Barrel | | Established: | 1996 |
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| Mash Restaurant |
 | | Location: | Manchester, England | | Phone: | 44-161-66-1111 | | System Size: | 15 Barrel |
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| Max Lagers |
 | | Location: | GA, US | | Phone: | 404-525-4400 | | System Size: | 15 Barrel | | Established: | 1997 |
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| Miami Brewin Co |
 | | Location: | FL, US | | Phone: | 305-888-6505 | | System Size: | 50 Barrel | | Established: | 1995 |
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| Michigan Microbreweries |
 | | Location: | MI, US | | Phone: | 734-747-9806 | | System Size: | 30 Barrel | | Established: | 1999 |
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| Molson Breweries - Air Canada Cente |
 | | Location: | ON, Canada | | Phone: | 416-359-1786 | | System Size: | 15 Barrel | | Established: | 1999 |
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| Moon River Brewing Co |
 | | Location: | GA, US | | Phone: | 912-447-0943 | | System Size: | 15 Barrel | | Established: | 1997 |
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| North Rock Brewing Co |
 | | Location: | Bermuda, Bermuda | | Phone: | 441-236-6633 | | System Size: | 3 Barrel | | Established: | 1997 |
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| Northwoods Brewery |
 | | Location: | WI, US | | Phone: | 715-552-0510 | | System Size: | 7 Barrel | | Established: | 1998 |
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| Oakpond Brewing Co |
 | | Location: | ME, US | | Phone: | 207-474-5952 | | System Size: | 15 Barrel | | Established: | 1995 |
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