Mark Guiley, CPATax Senior Manager

Mark was born and raised in Springfield, Mark attended the University of Oregon where he earned his Bachelors degree in Business Administration. He went on to attend Linfield College, where he added an accounting certification to his degree. Mark joined Isler CPA in 2011. Prior to joining Isler CPA, Mark worked in both the hospitality and health care industry. Mark currently lives in Thurston with his wife, Jennifer, and their two young boys. Mark enjoys spending time with family and friends, watching sports, playing basketball and softball, and golfing.


  • Bachelor of Arts in Business Administration, University of Oregon
  • Certificate of Accounting, Linfield College

Professional Affiliations

  • Oregon Society of CPA’s
  • American Institute of Certified Public Accountants
  • Oregon Restaurant & Lodging Association (ORLA)

Community Involvement

  • Thurston Babe Ruth Baseball Board Member
  • Junior Achievement of Western Oregon – Past Board Member
  • Eugene-Springfield Tax Association – Past Board Member

Ask Me About

  • Ways to increase profits for your small business
  • Tax planning and compliance for companies and individuals
  • Planning for passive losses
  • Finding potential tax breaks within the hospitality industry
  • How blood donations saved my son’s life
  • Any sports

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