Preszler, Larner, Mertz, & Co., P.S. is an Aberdeen, WA CPA firm serving small businesses, individuals, and non-profit organizations. The firm provides professional services across major areas of accounting, with source materials noting work for businesses, corporations, partnerships, and individuals in industries such as timber, fishing, farming, retail, construction, recreation, medical, professional services, and manufacturing.

Its listed services include accounting and financial statement services, bookkeeping, business and individual tax preparation, tax planning, estate planning, and QuickBooks consulting and support. The firm also notes technology skills and computer support services, while maintaining a personalized approach to client work.

Profile facts list CPA credentials and 40+ years of experience. Public source text supports a broad tax and accounting practice rather than a single-specialty profile.