Alan's Tree Service, Inc.

Full Service Tree Care Company Owned and Operated by a Certified Arborist
who believes in the importance of customer satisfaction

International Society of Arboriculture

http://www.isa-arbor.com  

(helpful information about the world of Arboriculture)

http://www.isa-arbor.com/findArborist/findarborist.aspx  

(If you search under the State of Michigan and the city of Clawson you can   

verify that Edward Martin is a Certified Arborist)

Angie's List

http://www.angieslist.com  

(listing of contractor's that can only appear on the list as a result of

a  positive customer referral)