Kevin Costello


Assurance services Reviews Compilations Corporate tax preparation Manufacturing Non-profits

Headshot of Kevin Costello, a Director at Tonneson and Co.

Wakefield, MA

Kevin is a highly skilled and dedicated Director at Tonneson, specializing in the firm’s audit department. He joined the department in 2017, bringing with him over 10 years of professional experience. Kevin’s expertise lies in providing audit and assurance services, including reviews, compilations, and corporate tax preparation. He has extensive experience performing audits of employee benefit plans and ensuring compliance with Government Auditing Standards for clients in professional services, manufacturing, and nonprofit industries.

Kevin is a CPA and holds a BS in accounting from Merrimack College. He furthered his education by earning an MS in accounting and an MBA from Suffolk University. As an active member of the Massachusetts Society of CPAs (MassCPAs) and the American Institute of CPAs (AICPA), Kevin stays up to date with the latest industry trends and best practices. He actively participates in training, mentoring, and networking activities within the firm, striving to add value to client relationships and promptly address their needs.

Kevin’s commitment to giving back to the community is evident through his involvement in various volunteer initiatives. He participates in toy drives, the Catie’s Closet Fill the Bus events and provides pro bono services to nonprofit clients. He believes in using his expertise and skills to make a positive impact beyond the professional realm.

Get to know Kevin Costello

Outside of work, Kevin cherishes spending time with his wife and three children, engaging in activities such as playing, exercising, and playing the guitar. He also has a passion for learning new skills, including handcrafting leather goods and building. Kevin resides north of Boston, and enjoys enriching experiences both personally and professionally.