Who was the previous owner of waste management?

Waste Management, Inc. was previously owned by several entities before becoming a publicly traded company. Notably, in the early 1990s, it was operated by the founder, Dean Buntrock, and other executives who played key roles in its expansion. The company underwent various Mergers and Acquisitions over the years, but its significant growth can be attributed to its leadership and strategic decisions during that time. Ultimately, it became a major player in the waste management industry through these developments.