Our mission is clear

We go deep to unlock insight and have the courage to act. We bring the right people together to challenge established thinking and drive transformation. We work with our clients to build the capabilities that enable organizations to achieve sustainable advantage. We are shaping the future. Together.

We Innovate

Business plans may be internally or externally focused. Internally, plans focus on company operations
and enhancing company value. Externally plans focus on target goals that are important to external
stakeholders, particularly financial stakeholders.

Your Performance

When you succeed, we succeed – our goal is to help you so that your financials perform with the goals you have in mind.


Every client is unique; we take the time to listen, particularly in a time that may feel overly automated. We humanize the process to provide you with accessibility, responsiveness and reliable services from an experienced team.

“PG& Co. has provided us valuable accounting and tax services on a personal and business basis for over 25 years.  I highly value their advice and counsel for tax planning and analysis.”

Robert J. Maccini
Founder & CFO
Drive Time Metrics
Jamestown, RI

“… their advice and strategic tax-planning has allowed us to eliminate waste and put our money to work - developing critical projects, expanding our business, and adding jobs.  It is no exaggeration to say that we absolutely would not be here right now without their infallible guidance.”

Jay Colgan
Colgan Development Group
A Child's University
Smithfield, RI

“We have grown; expanded our markets; invested substantially in new equipment and technology; purchased companies; sold companies and survived many challenges.  At each point in this successful journey we have had the professionals from PG&Co at the table with us assisting in not just the accounting but being a sounding board asking those smart questions and helping us build the right strategy."

Dan Shedd
Taylor Box Company
Warren, RI

“We have been a client of Piccerelli Gilstein & Company, LLP for over 15 years.  They provide us with expert advice with our annual tax engagement and throughout the year as needed in a prompt and efficient manner. The staff is very professional, and they are always available.”

Domenic Lapati
Key Container Corp
Pawtucket, RI

"They provide prompt, professional, and consistent services. They leave us with confidence that the business exposure and risks are low. They offer support to management and the financial team. I would highly recommend them for any accounting needs.”

Justine Johnson
Ocean State Veterinary Specialists 
East Greenwich, RI

“We have been using PG&Co. for literally decades. Not only does our CPA firm provide us with a high level of service for standard accounting and reporting requirements but PG&Co. had also provided unique services as well."

Michael A. Akkaoui
President/ CEO
Tanury Industries
Lincoln, RI

"As the President of our company, I am always confident that a recommendation of Piccerelli, Gilstein & Company to a client will in fact be exceeded by the service and professionalism with which PG&Co. delivers.”

Gregory A Paolino, Jr.
Paolino Insurance Agency, Inc. and The Paolino Group LLC
Providence, RI

“Working with PG&Co is like having the best of two worlds; the level of expertise expected from a top five firm, and the personal and affable attention you’d expect from a small town shop."

Mike Twist
Director of European Markets
Avid Products, Inc.
Middletown, RI

"They are responsive, deliver their work on time and are always helpful throughout the year not just during audit/tax time. Their client service is simply exceptional."

Catherine Spicka
VP, Accounting & Tax
Haley Residential (formerly known as DEI Communities):

"While I find my accounting relationship with PG&Co. superb in all aspects, the best part is the rapid response for time sensitive issues that arise outside of tax filing season."

Arnold-Peter C. Weiss, M.D.
Vice Chairman & Professor of Orthopaedics
Alpert Medical School of Brown University

"The partners are fully engaged and extremely capable. The staff evolves and changes but the quality of service remains excellent."

E. Niles Wilcox
Leonard Valve Company
Cranston, RI

"I always check with them first, before making any major financial decision. PG&Co. has taught me over the years that planning pays, because it saves.”

Joseph Gallagher
Managing Director
Angel Street Capital

Firm Culture


William J. Piccerelli

Rhode Island has been home to public accounting firm Piccerelli Gilstein & Company, LLP for over 45 years. Alan Gilstein (1943-2008) and I co-founded the firm on December 1, 1973 with the goal to become a sustainable, quality, independent CPA firm known for our integrity and commitment to clients. We choose downtown Providence, Rhode Island, because of its convenient accessibility to Massachusetts, Connecticut and, of course Rhode Island marketplaces.

While much has changed in downtown Providence since we opened our doors, we have also experienced our own transformations. Alan and I expanded our two-man partnership into one of the leading independent accounting firms in the region, providing a larger breadth of services to meet the ever-expanding needs of our clients, some of whom have been with the firm for more than four decades.


Regardless of change, our goal remain the same. Piccerelli Gilstein leaders are passionate and committed to our valued relationships with clients, staff and community partners. We also continue to stand by our decision to remain independent, which we believe provides you with the accessibility you want to leadership, while giving us the flexibility to make key decisions quickly and easily on your behalf, as well as for our business.