Enviro-Master Services is the leading commercial restroom hygiene company in North America. Started in 1983 as Swisher Hygiene, Enviro-Master is one of the only franchises in North America that exhibits 7 Essential Business Fundamentals: Residual Income Recession Resistant Huge Customer Base Not Capital Intensive Minimal Competition Will Never be Replaced by Technology Scalable / Unlimited Growth Potential These were the reasons Pat Swisher started Swisher Hygiene in 1983 and then, reentered the business in 2009 as Enviro-Master Services (after having sold Swisher Hygiene in 2004)