The firm was founded in 1972 by Welles R. Guilmartin. Michael J. DiPiro became a partner in 1985 and Michael A. Sokolowski became a partner in 1994.  Teresa J. Opalacz was appointed a partner in 2010 after working as a consultant with the firm since 2001.  Welles retired from the firm in 2009 and is now serving as a consultant. Active in our profession, Guilmartin, DiPiro & Sokolowski, LLC is a member of the following organizations:   American Institute of Certified Public Accountants (AICPA)   Connecticut Society of Certified Public Accountants (CSCPA)      Private Companies Practice Section (PCPS) of the AICPA Division for CPA firms Connecticut Association of Nonprofits (CAN) Connecticut Community Providers Association (CCPA) New Haven Chamber of Commerce Nonprofit Resource Council Middlesex County Chamber of Commerce     Membership in PCPS requires that we submit our practice to periodic outside review of our quality control procedures to ensure adherence to our own high standards as well as those of the AICPA. The professionals at our firm have a wide range of experience and are uniquely qualified to assist you. They were selected because of their skills in providing practical solutions to the problems of today's complex financial world. They also receive continuing specialized training that results in the timely and accurate reporting required in today's Federal and State compliance-dominated environment.   If you are already familiar with our firm, you know of our commitment to excellence. If you are learning about us for the first time, we invite further inquiries. We would be delighted to answer any specific questions you might have regarding our firm.