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A Respected Reputation

Established over 2 decades ago, Environmental Management Inc. has grown to be one of the largest landscape companies in Central Ohio.


Our insistence that “excellence is the only acceptable outcome” means that we are continually searching for better ways to increase our productivity, better ways to serve our customers, and most importantly better ways to remain an affordable and exceptional value to our customers.


Environmental Management, Inc. was founded in March 1992 with 3 employees and 20 maintenance accounts. Inspired by well-balanced backgrounds in maintenance and design/build, Mark Wehinger, Gary Clark, and Ron Dingess formed the fledgling landscape maintenance company and established lofty goals for its continued growth. In 1996 the company expanded its maintenance operations to include an award-winning landscape design/build division. By the end of 2008 EMI has grown to achieve an average annual revenue of 15 million dollars with a full-time staff of 70 permanent employees and an additional 200 seasonal employees.

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