| Mayfair Delivers LimitedLondon, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 2008 |
| Mayfair Hg LimitedLondon, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 2022 |
| Mazeray CorporationAngleton, TX, United States · USchecked 1 Nov 2026 | US | 0 | – | – | – | – | – |
| Mazza Wine IncMiami, FL, United States · USchecked 1 Nov 2026 | US | 0 | – | – | – | – | – |
| MBF CompanyMonterey, CA, United States · USchecked 1 Nov 2026 | US | 0 | – | – | – | – | – |
| Mbj Wines, LLCAttleboro, MA, United States · USchecked 1 Nov 2026 | US | 0 | – | – | – | – | – |
| Mc Elite Wines CorpMiami, FL, United States · USchecked 1 Nov 2026 | US | 0 | – | – | – | – | – |
| Mcb International, Ltd.Portland, OR, United States · USchecked 1 Nov 2026 | US | 0 | – | – | – | – | – |
| Mcbride Sisters Collections, Inc.Napa, CA, United States · USchecked 1 Nov 2026 | US | 0 | – | – | – | – | – |
| Mccann Manchester LimitedMacclesfield Cheshire, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 1986 |
| Mccloskey International LtdBirmingham, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 1988 |
| Mccormac Vintners LimitedMuch Wenlock, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 2022 |
| Mcintosh Agricultural Consortium LLCJefferson City, MO, United States · USchecked 1 Nov 2026 | US | 0 | – | – | – | – | – |
| Mckenzie Fine Wines LtdGodalming, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 2007 |
| Mckinley Vintners LimitedLondon, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 2010 |
| Mclaren Racing LimitedWoking, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 1980 |
| Mcmillan Motorsport LimitedBurton on Trent, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 2012 |
| Mcqueens Flowers LimitedLondon, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 2017 |
| Mcquitty & Lemasters Wines, LLCAlexandria, VA, United States · USchecked 1 Nov 2026 | US | 0 | – | – | – | – | – |
| Md Logistics, Inc.Fairfax, VA, United States · USchecked 1 Nov 2026 | US | 0 | – | – | – | – | – |
| Mde Services Group LimitedBracknell, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 2016 |
| Mdeliverygroup LtdLondon, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 2018 |
| Mdrc Deli LimitedSouthampton, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 2022 |
| Me Group International PLCEpsom, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 1962 |
| Meadow Foods LtdChester, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 1992 |
| Mechanised Project ManagementLondon, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 1946 |
| Mecm, LimitedLondon, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 1996 |
| Medagio LimitedLondon, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 2016 |
| Medaillon Imports LLCLombard, IL, United States · USchecked 1 Nov 2026 | US | 0 | – | – | – | – | – |
| Media 21 Inc.Elk Grove Village, IL, United States · USchecked 1 Nov 2026 | US | 0 | – | – | – | – | – |
| Mediterranean Direct LtdBlackburn, United Kingdom · UKmediterraneandirect.co.uk · checked 28 Oct 2026 | UK | 0 | – | – | – | – | 2007 |
| Mediterraneo Food and WineInglewood, CA, United States · USchecked 1 Nov 2026 | US | 0 | – | – | – | – | – |
| Mediterraneo Taste, Inc.Newport Beach, CA, United States · USchecked 1 Nov 2026 | US | 0 | – | – | – | – | – |
| Medwick Wines LLCPort Washington, NY, United States · USchecked 1 Nov 2026 | US | 0 | – | – | – | – | – |
| Meg International LLCPeachtree City, GA, United States · USchecked 1 Nov 2026 | US | 0 | – | – | – | – | – |
| Megabien Real Estate CorporationMinneapolis, MN, United States · USchecked 1 Nov 2026 | US | 0 | – | – | – | – | – |
| Megalink Wines Corp.Doral, FL, United States · USchecked 1 Nov 2026 | US | 0 | – | – | – | – | – |
| Megawine, Inc.Van Nuys, CA, United States · USchecked 1 Nov 2026 | US | 0 | – | – | – | – | – |
| Megha Inc.Woodland Hills, CA, United States · USchecked 1 Nov 2026 | US | 0 | – | – | – | – | – |
| Mehr Wines LLCLong Island City, NY, United States · USchecked 1 Nov 2026 | US | 0 | – | – | – | – | – |
| Memento Exclusives LimitedNorthampton, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 2010 |
| Mendocino Wine Group, LLCUkiah, CA, United States · USchecked 1 Nov 2026 | US | 0 | – | – | – | – | – |
| Mengia e Bevi Vino Torino LimitedHarrogate, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 2023 |
| Mentzendorff & Co LtdLondon, United Kingdom · UKmentzendorff.co.uk · checked 28 Oct 2026 | UK | 0 | – | – | –Premium (producers) | 20% | 1968 |
| Mephisto Wine Merchants LtdLondon, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 2007 |
| Mercado Wine Products, Inc.Irvine, CA, United States · USchecked 1 Nov 2026 | US | 0 | – | – | – | – | – |
| Mercanti Imports LimitedBristol, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 2016 |
| Mercato Italiano LimitedBridport, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 2014 |
| Merci Wines LLCChicago, IL, United States · USchecked 1 Nov 2026 | US | 0 | – | – | – | – | – |
| Mercia Wines LtdCoventry, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 2020 |