The Care of Trees

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The Care of Trees
Industry Tree care
Founded Wheeling, Illinois, United States (1967)
Founder John Hendricksen, Bob Hendricksen
Headquarters Wheeling, Illinois, United States
Key people
Karl J. Warnke (CEO)
Revenue IncreaseUS$48,989,204 (2007)
Owner Employee owned
Number of employees

The Care of Trees is a privately held company that provides tree care services to the greater metropolitan areas of Chicago, southwestern Connecticut, New York, Philadelphia, northern Virginia, and Washington, D.C. It is the fourth largest residential tree care company[1] in North America. It was incorporated in 1967 as Hendricksen Tree Experts, Inc. and changed its name to The Care of Trees, Inc. in November 1988.[2][3] It merged with the Davey Tree Expert Company in June 2008 and is a wholly owned subsidiary.[4][5]


  1. ^ [1]"Lawn & Landscape Top 100" (PDF). 
  2. ^ "Business Week". 
  3. ^ Koziol, Nina A (March 7, 1999). "Chicago Tribune - March 7, 1999". Chicago Tribune. 
  4. ^ "Business Week". 
  5. ^ "Arbor Age Magazine".