Donovan Billings, CPA

Donovan, a Certified Public Accountant in both New Hampshire and Massachusetts, has had the unique opportunity to consult and advise some of the largest companies in the world while simultaneously rolling up his sleeves to help figure out a way for smaller family companies to make payroll.  No stranger to starting up companies, Donovan is the founder of his own CPA firm which has individual and corporate clients through the United States of America.  His corporate clients range from start-up one man (or woman) companies to Fortune 500 Companies, and include almost everything in-between.


Previous to founding his firm, Donovan was the Chief Financial Officer for a regional New England Company involved in the real estate industry.  He has also served as the Chief of Staff for the largest broker-deal in the world, and as the controller of a start up technology firm.  Although he started his career at Arthur Andersen, he has also worked extensively in the technology, biotechnology and financial sector.


Never accused of sitting idle, Donovan began work at the age of twelve, got his first overtime check at the age of fourteen, worked his first overnight shift at sixteen and worked his way through both high school and college.

Denise A. Perrault, CPA

Denise joined DTB Tax in November 2017.  She is a graduate of Salem State College.  She is a licensed CPA in Massachusetts and has over twenty years of public accounting experience.  Denise is involved with preparation and review of tax returns, corporate and individual tax planning, researching tax regulations and representing clients with tax authorities.

Denise is the Treasurer of the Exchange Club of Salem, NH.  She is also a member of the New Hampshire Society of Certified Public Accountants.

Denise lives in Salem with her husband and three children. 

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Eyiwumi Adedokun, CPA

Wumi (Wumee) is a Junior Accountant with DTB Tax. She is well versed in tax preparation (individual, partnership, trusts, corporate, etc) and has experience in bookkeeping using QuickBooks. She previously worked with small accounting firms in Illinois and Maine. Wumi has completed her CPA exams and she is in the process of obtaining her professional license. She is also working on her Association of Chartered Certified Accountants (ACCA) exams. Wumi holds a B.Sc. and M.Sc. in Accounting from Illinois State University.

Wumi lives in Manchester with her husband and son.

Erica Comeau

Erica is a Junior Accountant with DTB Tax. She has experience in bookkeeping using QuickBooks as well as tax preparation for individuals and small businesses. Before Erica worked at DTB Tax she worked for Harold Williams CPA/CFP in Hampstead, NH. She is currently still in school working on obtaining a bachelor’s degree in accounting at Southern New Hampshire University. Once she is finished with school, she will begin the process of taking the CPA exam.

Erica lives in Seabrook with her boyfriend.