Back to top

About Us

About Our Firm

The Office of Cornelia C. Viek, CPA has been voted Midcoast Maine's Best Tax Specialist for ten years running, from 2021 all the way back to 2012.  

Since 1993,  the Office of Cornelia C. Viek, CPA has been providing quality, personalized financial guidance to local individuals and businesses. Our expertise ranges from tax and accounting services to more in-depth services such as long term business and personal planning.

The Office of Cornelia C. Viek, CPA is one of the leading firms in the Midcoast, Maine area. Combining our expertise, experience and the team mentality of our staff, we assure that every client receives the close analysis and attention they deserve. Whether you are a current or prospective client, rest assured that individuals and businesses who choose the Office of Cornelia C. Viek, CPA receive competent and timely advice.  We also offer electronic tax return delivery through a secure portal.


Our Mission

Our mission is to help clients maintain financial viability in the present, while taking a proactive approach to achieve future goals. This requires open communication to reach an understanding of our clients' specific needs through research and sound analysis. The Office of Cornelia C. Viek, CPA is dedicated to meeting these goals with high standards of excellence and professionalism. We have been a staple of Midcoast Maine's business community for 28 years, and pride ourselves on the level of esteem we have earned.


Our Team

Cornelia C Viek, CPA 207-725-8982 BA Economics, Yale University
Certified Public Accountant

Cornelia is originally from Pennsylvania, where she attended Quaker day schools. She has a B.A. in Economics from Yale university, and she has been a licensed CPA since 1992. Cornelia specializes in all aspects of tax and business planning. She handles individual, corporate, partnership, estate, and trust work. She also offers counsel on business formation, benefits, elder care issues, and college and retirement planning. Cornelia resides in West Bath with her family and an assortment of animals.

Cornelia is accepting new clients by referral only.

Mitchell K Black, CPA, CIA 207-725-8982 MBA/Masters Accounting, Northeastern Univ./BS Finance, Bentley Univ.
Certified Public Accountant, Certified Internal Auditor

Mitchell has been with the Office of Cornelia C Viek, CPA since 2003 and a CPA and Certified Internal Auditor since 1998. He has 25 years of tax, and 13 years of accounting/audit experience. He is proficient in the preparation of individual, corporate, partnership/LLC, gift, estate, and non-profit tax returns. He consults on tax, business formation, social security, retirement, QuickBooks and education issues. He also represents client interests in IRS and State of Maine audits. Mitchell and his wife, Martha, have four children. He enjoys spending time with his family, playing golf, and is an avid fan of basketball, football, soccer, and hockey.

For additional information on Mitchell, click here to see his LinkedIn page.

For additional information on Mitchell, click here to see his Facebook page.

Peter Tetreault, EA 207-725-8982 BS Business Administration, Univ. of Southern Maine
Enrolled Agent

Peter Tetreault joined the Office of Cornelia Viek, CPA in 2009. With over 15 years of experience in the public and private sectors, Peter brings a wealth of knowledge in areas including tax, accounting, labor compliance, payroll, and business planning. Peter is a native of Brunswick and attributes much of his business consulting experience to his years working in the fishing and construction industries. Peter actively supports his family in a well-known Harpswell business.

Peter is accepting new clients by referral only.

Sandy Warner, Office Manager 207-725-8982

Sandy has been the Office Manager for the Office of Cornelia C Viek, CPA since 2008. She ensures that our office runs efficiently and is happy to assist our clients in any way possible.