Main Office

502 Main Street, Suite 1
Farmingdale, New York 11735

(516) 420-0188

BPS logo without text

New York City Office

641 Lexington Avenue, 14th Floor
(on 54th on corner of Lexington and 54th)
New York, NY 10022

(212) 537-6667

About Our Firm

Our firm provides outstanding service to our clients because of our dedication to the three underlying principles of Professionalism, Responsiveness, and Quality.


Our firm is one of the leading firms in the New York metro area. By combining our expertise, experience, and the energy of our staff, we ensure that each client receives close personal and professional attention.

We feel it is extremely important to continuously professionally educate ourselves to improve our technical expertise, financial knowledge, and service to our clients.

Our high standards, top-notch service, and specialized staff are what sets us apart from other accounting firms and the reason for our consistently outstanding performance. We make sure that every client is served by the expertise of our whole firm.


Our firm is responsive. Companies and individuals who choose our firm rely on our competent advice and fast, accurate personnel. We provide total financial services to individuals, large and small businesses, and other agencies.

To see a listing of our services, please take a moment and look at our services page. Because we get new business from the people who know us best, client referrals have fueled our growth in the recent years.

Through hard work, we have earned the respect of the business and financial communities. This respect illustrates our diverse talents, dedication and ability to respond quickly.


An accounting firm is known for the quality of its service. Our firm’s reputation reflects the high standards we demand of ourselves.

Our primary goal as a trusted advisor is to be available and to provide insightful advice to enable our clients to make informed financial decisions. We do not accept anything less from ourselves and this is what we deliver to you.

Our high service quality and “raving fan” clients are the result of our commitment to excellence.

We will answer all of your questions, as they impact both your tax and financial situations. We welcome you to contact us anytime.


Our team of experts brings exceptional expertise and decades of combined experience in all aspects of accounting and taxation to our clients. Our commitment to professionalism, responsiveness, and quality is the reason we’ve built our business through client referrals.

Mark Stone, CPA, CFP, PFS

Mark Stone, CPA, CFP, PFA

Mark Stone practices in diversified areas of taxation, specializing in issues related to closely-held businesses and high net worth individuals. His expertise includes research, business transactional planning, consulting and complying with federal, state and local tax filing requirements.

Mark has extensive experience in the areas of manufacturing, real estate, service industries, and investment partnerships. Mark is licensed as a Certified Public Accountant in New York State and holds the Certified Financial Planning (CFP) designation and the Personal Financial Planning (PFS) designation. In addition, he has a Masters in Taxation Degree from the State University of NY at Albany.

Mark is a member of the American Institute of Certified Public Accountants and the New York State Society of Certified Public Accountants (“NYSSCPA”). As a NYSSCPA member, he is a member of the NYSSCPA Partnership and LLC committee and has served as a past chairperson of the statewide Partnership and LLC Committee and is a past chair of the annual Partnership Conference held in New York City. In addition, he is a member of the Estate Planning Committee and the International Committee, and the past member of the statewide Budgeting and Finance committee. In addition to his involvement at the state level, he is a Past President of the NYSSCPA’s Nassau Chapter, which is the single largest chapter in the statewide system, boasting of over 5,000 members and 18 subcommittees. Formerly, Mark chaired the NYSSCPA Nassau Chapter’s Estate and Financial Planning committee and served as treasurer of the Federal Taxation Committee. Mark has developed seminars and instructed in the areas of partnership and corporate taxation as well as various Estate and Trust administration and planning matters. He has lectured extensively to various professional groups including the NYSSCPA, the National Conference of CPA Practitioners, the Institute of Management Accountants, CW Post University and the International Association of Financial Planners on areas such as estate planning, financial planning, and partnership and business entities related topics and planning. In addition, he has published articles on many tax and financial topics in publications such as the CPA Journal, Trusted Professional, and the Journal of Financial Planning.

Headshot photo of Frank A. Bianculli, CPA

Frank A. Bianculli, CPA

Frank Bianculli earned his Bachelor of Science in Accounting from Hunter College of the City University of New York, graduating Magna Cum Laude. He also attended graduate school at Pace University and has been licensed as a Certified Public Accountant in New York State since 1981. He has been an adjunct lecturer of accounting and auditing at institutions of higher education including Adelphi University, Hunter College of CUNY, York College, and the State University of New York at Farmingdale. Frank has been quoted in respected industry and general-interest publications including the Practical Accountant, Financial Executives News, and Newsday, and his writing has been published in the CPA Journal.

Frank is especially knowledgeable in the areas of accounting, Securities and Exchange Commission (SEC) auditing, and taxation. He provides services to a variety of large, medium, and small public, closely held, and family-owned companies. Frank also serves as the partner responsible for the accounting, auditing, and management consulting aspects of the firm’s practice as well as for the monitoring of quality control systems.

Frank is a longstanding member of the American Institute of Certified Public Accountants, the National Association of Accountants, and the New York State Society of Certified Public Accountants, where he has served on both the Auditing Procedures Committee and the Securities and Exchange Commission Practice Committee. He holds a certificate of excellence in statistics and quantitative methods. Frank is also professionally qualified to conduct peer reviews of other CPA firms.