Nicholas P. Tamvaklis
Partner, PKF O’Connor Davies LLP
Partner, PKF O’Connor Davies Advisory LLC
“My clients expect an advisor who understands their business and industry. By providing practical, tailored insights in the language of their business, I help support informed decision making.”
Nicholas has nearly 20 years of experience in public accounting. He provides audit, accounting and advisory services to architecture, engineering, environmental consulting and other professional services firms.
Nick works closely with privately held businesses on financial reporting, succession planning, benchmarking, mergers and acquisitions and technical accounting matters. He also has significant experience performing government overhead rate audits under the Federal Acquisition Regulation (FAR).
He brings a practical, industry-focused perspective to complex issues, helping clients translate financial information into tailored insights to support their business objectives. As an active speaker and attendee at industry events, Nick stays informed on evolving changes affecting professional services firms.
Professional Affiliations and Civic Involvement
- American Institute of Certified Public Accountants (AICPA)
- Massachusetts Society of Certified Public Accountants (MassCPAs)
- American Council of Engineering Companies of Massachusetts (ACEC/MA)
- Chair, Accounting & Finance Forum
- University of Massachusetts Lowell Accounting Advisory
- Board Member
- The Wish Project
- Former Assistant Treasurer
Accreditations
- Certified Public Accountant (Massachusetts)
- Certified Design Accountant (CDA)
Education
- Bentley University, Master of Science degree in Taxation and Master Personal Financial Planner Certificate
- University of Massachusetts Lowell, Bachelor of Science degree in Business Administration, Accounting and Finance

