George M Martynuk Inc (GMM Inc.) is an innovative artists management firm offering both Worldwide Public Relations and World Wide Management for Opera Singers.

Its principal, George Martynuk, was well prepared for this venture after many years with Herbert H. Breslin, Inc., the agency of Luciano Pavarotti, where he represented such important artists as baritones Leo Nucci and Thomas Hampson, basses James Morris and Paul Plishka, tenors Jerry Hadley and Chris Merritt, conductors James Conlon and Jesus Lopez-Cobos, and flutist James Galway, and others.