John DeVall has 22 years of accounting experience in the service industry. He began his career with Associated Building Services as Senior Accountant and expanded his role to Controller of a subsidiary company. In 2005, John joined GCA Education Division to become the Division Controller. He was an integral part of a management team that increased revenue and EBITDA double digits each year from 2005 to 2014. John oversees all of ESS' financial processes and procedures. He holds a Bachelor of Business Administration degree from Stephen F. Austin State University.
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