Answer:
George S. May International is privately owned and held. They informally claim in excess of 100 million in sales, but the truth is no one but CEO, Managing Director and the representative of the May Family really know. They also claim to have assisted over half a million businesses over the last 80 or so years. Again, no way to validate this claim as they do not routinely provide references.
They are doing less than 50 million a year, and have been on a downward spiral the last 10 years. I'll be dancing on the roof when this rotten company finally closes it's doors for good.