Y Machida - Mac Guitars. Based in Japan. Started before 2008 and added Ukuleles in 2010.
Hirano Makoto - Makolele. Based in Hitachi, Ibaraki Prefecture, Japan. Started in 2009 became full time luthier in 2010.
Akio Masuda - Water Road. Based in Gunma Prefecture, Japan. Started in 1997 and added Ukuleles in 2011.
Toda Matsugi - TD as his headstock logo. Based in Maibara, Shiga Prefecture, Japan. Started before 2007
Kunihiro Matsui - Based in Oahu, Hawaii.
Norikazu Matsui - Based in Japan. Learned from Kazuo Tamura starting in 1992 and took over his business in 2005.
Hiroshi Matsumoto - Tomutedesu. Based in Yorii, Japan. He started out making furniture in 1994, now makes Ukuleles as well
Russ Mattsen - Based in Nelson, New Zealand, has been making resonator guitars and ukuleles since the 1990's
Luis Feu de Mesquita - LFdM Guitars. Based in Canada. Became full time luthier in 2000 and in 2007 added Ukuleles.
Morihiko Mitsuda - Based in Hiroshima, Hiroshima Prefecture, Japan.
Tatsuya Mitsui - Mitsulele. Based in Kamakura, Kanagawa Prefecture, Japan. Became full time luthier in 2001.
Chuck Moore - Moore Bettah. Based on the Big Island, Hawaii. Self taught starting in the mid 80's and became full time luthier in 2000.
Kazuhisa Mori - Makani or M's Craft. Based in Japan and is the son of Takayuki Mori. Started on his own in 2008 after he was runner up in the Ukulele Guild of Hawaii best inlay section.
Takayuki Mori - M's Craft Kai or just Kai. Based in Japan, he went to Hawaii and learned ukulele luthiery then became full time.
Pete Murphy - Based in Woodend, Victoria, Australia. He is a carpenter by trade and started building ukuleles in the early 2000's.