The Right Fit!

We make your business our business

At Gary Olszewski & Company we treat each client's financial business as if it were our own. To us, nothing is more important than knowing all we can about your financial goals and aspirations, and helping you to achieve them.

Our professional financial team is constantly working to know every significant aspect of your business operation, and the key members of your organization.

We believe that "CPA" stands for Close Personal Attention. We strive to have one of our accounting principals involved with every account we handle. We remain committed to provide the highest quality results any client has the right to expect. Our hands-on approach to detail has established a track record for Gary Olszewski & Company. We regularly invest much more effort than is typically expected by those requiring an accountant's services.

At Gary Olszewski & Company, we acknowledge the importance of quality accounting compliance services. Yet, our clients consistently find they get more value from our financial planning and management advisory services. We make it a point to meet with every client well before the end of each fiscal year to plan financial strategies. This pro-active approach enhances our ability to minimize taxes while maximizing cash flow. Our firm's solid experience consistently gives us an edge in identifying and solving most client financial problems. This insight into financial consulting also lets us recognize when to advise our clients to obtain outside expertise.

Finally there's our determination to provide the best accounting services with the least hassle - helping to create an atmosphere our business or personal clients have come to trust.

Our Team


Gary S. Olszewski - CPA

Gary has over 30 years experience working in the Westfield and Springfield area advising a wide range of  closely held businesses and individuals.  Annual sales of previous and existing clients ranges from approximately $200,000 to $20,000,000.  In addition to reviewing tax returns and financial statements, and making sure clients are being timely served, he focuses on providing management advisory services such as tax planning, entity structure, succession planning, estate planning, buy-sell planning, asset protection planning, financial planning, and cash flow planning.

Gary resides in Westfield with his wife Eileen.

You can contact Gary at 
View my professional profile on LinkedIn.


Matthew Barnes - CPA 
Matt received his Bachelor's Degree in Business Administration in 2003 from Western New England College and his Master's Degree in Accounting in 2004 from Western New England College.  He provides not only tax and accounting services for clients, but also handles the firm’s technology issues and  he is a certified QuickBooks ProAdvisor.


Anthony Bosini - Senior Accountant 
Anthony graduated from Westfield State University with a Bachelor's Degree in Business Management with a Concentration in Accounting in 2005 and a Master’s Degree in Accountancy in 2012. Anthony is a senior accountant, with direct client contact when providing tax, accounting, payroll, bookkeeping and planning services.


Darlene Lafield, Office Manager 
Darlene is the firm’s office manager, and more importantly, the top client service contact person. She goes beyond the norm when answering the phones and waiting on clients. She is an invaluable asset to the firm.



Pamela Salois - Bookkeeper 
Pam has extensive experience providing bookkeeping and payroll services for small businesses utilizing QuickBooks and Peachtree software.

Call 413-562-5709