About Perkins, Derdowski & Associates, PLLC


Our Culture & Commitment to You

PopYour e-mails will be returned promptly, the same as your phone calls.

PopTo better facilitate our relationship and communication, we encourage both your e-mails and phone calls and as a result, short duration communications are not billed.

PopWe are committed to a culture of continual self-improvement and education to be as progressive, informed and knowledgeable as possible.

PopWe provide frequent continuing education classes and in-house training to allow our staff to further develop their high degree of expertise.

PopWe maintain an extensive tax and accounting research library including a state-of-the-art computer system.

Our Team

Keith Derdowski, CPA

  • Public & Private Practice Accounting Experience
  • Accounting Degree, cum laude, Seattle University
  • Member of the American Institute of CPAs and Washington Society of CPAs
  • State of Washington Licensed CPA
  • Former Board Member, Northshore Rotary Club
  • Emphasis in financial statement preparation, business advisory services, federal and state tax reporting

Cynthia McMath, Member

  • Over 35 years in Public and Private Accounting
  • Accounting Degree, Washington State University
  • Emphasis in corporate, partnership and small business accounting, and federal tax reporting
  • Emphasis in QuickBooks support, payroll tax reporting, and Washington B&O tax reporting

Leslie Gilham, CPA

  • State of Washington Licensed CPA
  • Accounting Degree, Central Washington University
  • Ecology Degree, University of California, San Diego
  • Member of the Washington Society of CPAs
  • Emphasis in Real Estate
  • Emphasis in corporate, partnership and small business accounting and tax reporting

Mark D. Lew

  • Over 15 years of income tax preparation experience
  • Emphasis in federal and state individual income tax reporting

Heidi Neuffer

Latanya Cason

James R. Perkins

Retired after over 40 years in public accounting