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Our History

A Trusted and Professional Accounting Firm

For over sixty-five years, Zackin Zimyeski Sullivan Certified Public Accountants, LLC has provided our clients with a consistently high level of accounting and attestation services. A high level of integrity and unbiased reporting has been the cornerstone to our long success.  We serve as your business advisors, helping you solve challenges and maximize opportunities.  Drawing upon our depth of experience, we tailor and consistently deliver tested solutions for realizing the full potential of your organization.  Our team shares a common passion: a personal commitment to each client’s success as well as to the communities in which we live and work.

We recognize that professional services are inseparable from the people who deliver them. At Zackin Zimyeski Sullivan,CPA LLC  we support and embrace the Firm Concept. This means that our clients are not just a client of one individual but of our entire firm, ensuring that there is always someone with the knowledge and skills available. We take pride in our long-lasting client connections that we have forged and measure our own success on how successful we help our clients to be.

Our expertise spans a wide array of industries, including but not limited to manufacturing, real estate, automotive, professional, financial, merchandising, as well as non-profit organizations allowing us to offer tailored solutions that address the unique challenges of each sector. Whether it's tax planning, auditing, consulting, or any other financial service, our team of seasoned professionals brings a wealth of experience to the table.

Carrie Zimyeski, CPA, one of our current Partners, has been with the firm since 1976 when she started as an intern and became an accounting manager in 1980. She continued her career as an accounting manager under Nelson Zackin, CPA and through continued learning, dedication, and innovation became a firm Partner in 1996. Keith Sullivan CPA started with our firm as a staff accountant in 1989 and quickly fulfilled his childhood plan of becoming a CPA and a partner in a local accounting firm soon after his thirtieth birthday.  His commitment to his profession and his community is apparent both inside and outside of our firm.

As we reflect on our past, we look forward to the future with optimism and excitement. Our commitment to excellence, client satisfaction, and continuous improvement remains unwavering. We are not just a firm with a rich history; we are a dynamic and forward-thinking firm ready to embrace the challenges and opportunities that lie ahead.

Thank you for being a part of our journey. Here's to the next chapter of success, growth, and enduring partnerships!

Our ZZS team and their families enjoying a Hartford Yard Goats game! 

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