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Wash Me Fast and Wiggy Wash. Mammoth Holdings, LLC was founded in 2002 by Gary Dennis and Chip Hackett. They are a fast conveyor car wash operator based in Atlanta with brands in six states (Utah, Illinois, Kentucky, Tennessee, Georgia, and Alabama). They performed more than 36 fast conveyor car wash yards and 3 flex service wash yards under Finish Line car wash, Marc-1, Pals, Quick Wash, Swifty, Ultra, Wash Me Fast and Wiggy Wash. Its acquisition approach and seeks to be the partner of choice for car wash operators who want liquidity, growth capital and deferred tax equity opportunities. Mengmm Company is customer-centric and operator-centric in terms of acquisition methods, and seeks to become the preferred partner for car wash operators who want to have liquidity, growth capital and tax deferred equity opportunities.