Garritano is a Long Island based accounting firm offering a full range of accounting, managerial and advisory services that are scalable and customizable to your unique needs. As a progressive firm, we have continued to innovate and invest in technology that can help serve our firm and our clients while still providing the personal service and attention our clients have come to appreciate.

We are more than just accountants; we are problem solvers using innovation, experience, and expertise to navigate through some of the most complicated and complex problems facing businesses today. Our team approaches each engagement as a partner, looking for ways to leverage our resources to add momentum to your growth.

With over 30 years of service to our clients and our community, Garritano’s mission has remained constant: to help people. GARRITANO supports various charities and organizations such as the Patchogue Rotary Club, AICPA, NYSSCPA, the Hauppauge Industrial Association and Suffolk County Community College.


Unlock the power of your business. GARRITANO is a full service accounting firm that can give your business what you need, when you need it. GARRITANO does not approach any two clients the same way. We will get to know you, your business and your goals in order to provide you with service that empowers you to focus on the most important aspects of your business and your life. Our team is trained to critically review your information for opportunities to help you grow and better protect your assets. Let us help you get the most out of your business data.

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Building a Business

In the harsh economy of 2009, three businessmen got together to form a startup company. As with any good partnership, each brought with them unique talents. Two of the partners were expert salesmen in their industry and the other was a wiz with finances. Like many startups, they had tremendous talent but no structure. The three partner’s ambition was to approach clientele with national reach. This would require the partners to have a strong infrastructure to service these clients properly. They were faced with one of the most common problems amongst startups: How to get clients without…

A Parent’s Legacy

It is every parent’s dream to pass on their business legacy to their children. More often than not, transferring the business from the parent, with all their years of experience in running the business, to their child, who has not yet lived through the challenges of being a business owner, is a disaster. Not only for the business and its employees, but also for the parent’s retirement dreams. These were the fears of a client who was looking to pass his business to his son. Both had been working together to shape the business for a while, but it had always been…



MBA, CGMA, Founder

Joined: 1983

Theresa Palagonia, CPA

Accounting Manager

Joined: 1989

Janet Gall

Firm Administrator

Joined: 2002

Vincent Garritano, CPA

Problem Solver

Joined: 2002

Jennifer Causin, CPA

Senior Accountant

Joined: 1996

Maureen Perez, CPA

Senior Accountant

Joined: 2005

Samantha Bongiorno


Joined: 2012

Katherine Gallusser

Administrative Assistant

Joined: 2014

Henry Brunjes IV

Junior Accountant

Joined: 2020


If you are an ambitious and growth-oriented individual looking to conquer new challenges and discover true career mobility, GARRITANO is where you belong.

Gregory S. Garritano, CPA, our founder, saw accounting as an opportunity to help people. For over 30 years, GARRITANO has fostered a culture of caring and quality as we strive to help both staff and clients reach their personal and professional goals. Our staff is trained in the ART OF ACCOUNTINGTM: ASK QUESTIONS, RESEARCH AND THINK. These principles permeate each and every task our team takes on.

Our culture is one of support, professionalism and respect. We are proud to have maintained this close firm culture as we continue to grow. When adding new members to our team we are looking for a combination of personality and skill that will blend well and add to our environment. Our firm has embraced the ever changing technologies that help us be more efficient and effective in servicing our clients.

We believe that each member of our team should be able to achieve their work/life balance. GARRITANO provides opportunities for growth and flexibility for those who earn it. GARRITANO truly believes that family comes first and work second. We are fortunate to have a team that both supports each other and is also considerate of one another. Although we demand the highest quality work product for our clients, we do it as a team.

  • "As our business grows, so do our needs to make the best financial decisions possible. GS Garritano & Associates has grown with us and been there for us every step of the way. There is no way we’d have reached these amazing levels without the confidence that this team provides."

    B. Harney
  • With Garritano, it's like I have a dedicated financial team at a fraction of what it would cost to hire each position individually. They have helped my company grow and enabled me to concentrate on what I do best. Before I had them, I falsely believed that I could handle everything myself. I was wrong. By miring myself down with the financial minutia, I was hurting myself in two ways, 1. I was stealing valuable energy from my family and my business and, 2. I could never do as good a job as they do. They always have my back from A/R to taxes and everything in between. I suppose that I could have hired everybody that I needed, but I don’t think any in house team I could have assembled would have been this good, this powerful, and this meticulous. I trusted them with my business and it was the best move I ever made. I cannot recommend them highly enough. My only regret is not having done it sooner.

    Dr. Russ L.
  • I am writing to endorse Garritano heartily! Greg, Jennifer and Theresa have been not just accountants, but fantastic listeners and collaborators. I've always felt that they have my interests at the top of their priority list. They are flexible, accommodating and the quintessential professionals. I also appreciate their conservative and careful approach to accounting and endorse them for any business in need of reliable, honest accounting services!

    Dr. Hannah O.
  • When I first met Garritano, RF Power was just a startup company with many undeveloped systems. Garritano quickly helped us put financial structure in place to monitor sales by product types, gross profits and inventory. As an entrepreneur, my focus was on sales and operations so his firm’s assistance was instrumental in providing a clear picture as to what was needed at each phase of our growth. RF Power was fortunate to grow rapidly for years and Greg, Jen and Theresa were all there every step of the way...

    Thomas P.
  • I heard about Garritano through my brother’s law firm. I had interviewed several accounting firms and found the most comfort with Greg, Theresa and the staff. From the start of our relationship I found them to be attentive, quick to response, knowledgeable, easy to deal with and always of the highest quality. I appreciate and am grateful to have started our relationship and plan to maintain it for a long time.

    Aaron S.
  • The Firm is comprised of highly professional and motivated individuals who take a systematic and ownership role/approach to all facets of the Accounting Business including a CFO Role where warranted. They are solution driven to meet the challenges of any businesses’ portfolio offering a wide array of strategies to address any issues which may arise to your satisfaction.

    Thomas S.