Michael Macera has been in the waste disposal business for over 40 years. In 1966, after two years at Roger Williams University, Mr. Macera formed Macera Disposal, Inc. with one used truck. The company grew and acquired 16 other small companies, resulting in gross revenues of $18,000,000 a year by 1987. In 1987 the company was sold to B.F.I. and Mr. Macera moved to Arizona to semi-retire.
Meanwhile in 1980, Mr. Macera co-founded Olympic Compactor Rentals. Mr. Macera sold his shares in 1990, and later that same year, founded Greenleaf Compaction Rentals which has grown to become the largest compactor rental company in the United States.
In addition to founding the Greenleaf companies, Mr. Macera was the founder of Summit Waste Systems in 1999. This company was acquired by Allied Waste in 2001.
Mr. Macera is currently the President of Greenleaf Compaction, Inc. Since his move to Arizona, Mr. Macera has been a stockholder in various companies outside of the waste industry in addition to investing in real estate.