When you hire our Accredited & Certified Professionals, you can be confident that we adhere to the highest standards in the green industry by endeavoring to grow our work force through training and employee development. Our dedicated professionals understand the value of continued education. Each of our credentials require thorough ongoing training to uphold.

Louisiana Department of Agriculture & Forestry

A 90 day license to operate in Louisiana during the disaster relief of Hurricane Ida.


Advancing tree care businesses since 1938 Tree Care Industry Association (TCIA) is the foremost business management resource for the tree care companies like O.A.K. services with tools we can use every day to increase profits lower training costs, retain quality employees and stay a step ahead of continually evolving regulatory issues.

Membership in TCIA has been one of the most strategic steps O.A.K. services has taken to grow or tree care business and rise above our competition.


ISA Certified Arborists on Staff, ISA Members on Staff

The International Society of Arboriculture has served the tree care industry for over eighty years as a scientific and educational organization. ISA arborist certification is a nongovernmental, voluntary process by which individuals can document their base of knowledge. Certified Arborists are individuals who have achieved a level of knowledge in the art and science of tree care through experience and by passing a comprehensive examination developed by some of the nation’s leading experts on tree care.

Click Here to See ISA Certification


The ISA Tree Risk Assessment Qualification program provides an opportunity for professionals in the arboriculture industry to expand their knowledge through education and training in the fundamentals of tree risk assessment. This qualification promotes the safety of people and property by providing a standardized and systematic process for assessing tree risk. The results of a tree risk assessment can provide tree owners and risk managers with the information to make informed decisions to enhance tree benefits, health, and longevity.

Click Here to See ISA Tree Risk Assessment Qualification


O.A.K. Services is fully licensed and insured including Commercial Auto Insurance, General Liability Insurance and Worker's Comp Insurance.