Our team has a collection of diverse backgrounds and experience. We develop and personalize a client team solution to match your individual needs and challenges with our experience and skills.

John L. Wonneberger, CPA, MST

Managing Partner
John is the firm’s managing member with over 30 years of experience in public practice. He has extensive tax and accounting experience, working with a wide variety of industries. With a knack for details and problem solving, he serves as a financial quarterback for our clients. John started his career at Ernst and Young (EY) and has worked to develop Wonneberger Business Solutions to provide the same large firm service and expertise, for closely held businesses and individuals.

John received his BS in Accounting from Fairfield University and a MS in Taxation from the University of New Haven. He also holds his Series 7 and 63 licenses. He is a member of the AICPA, CTCPA, and has served on various church and non-profit boards, in leadership positions.

Jon Morgan, CPA

Senior Manager
Jon has over 20 years of experience in accounting and attestation client services, with over 10 years at our firm. Throughout his career, Jon has had an emphasis on healthcare related clients including medical care providers, home healthcare, long-term care and related support industries as well as Medicare and Medicaid cost report preparation. He also provides hands on month and year-end accounting services to our business clients in a variety of industries including transportation, service industries, construction and manufacturing.

Jon received his BS in Accounting from the University of Connecticut. He is a member of the AICPA, CTCPA, and has served on the ALTCFM Board of Directors. Jon has also volunteered on other non-profit boards in leadership positions.

Ashley Dawson, MBA

Manager
Ashley started her career in economic development, with over 10 years of experience working with start-up and small businesses on accounting, marketing and operations. She leads the client onboarding process and focuses on business accounting and consulting.

Ashley received a BS in Finance and an MBA in Business Policy and Strategy from the University of New Haven.

Joseph Lombardo, CPA

Manager
Joe has over 10 years of combined public and corporate accounting experience, working with both taxes, audit, and corporate internal audit and process review. He assists in managing the 1040 tax season and works throughout the year with individual and business clients.

Joe received a BS in Accounting from Central Connecticut State University and a MS in Accounting and Taxation from the University of Hartford. He is a member of the CTCPA.

Mary Ellen Coonan

Senior Accountant
Mary Ellen has over 20 years of experience in public and private accounting, largely focusing on cost analysis in various manufacturing industries. She assists our clients with business accounting, financial statement preparation, monthly accounting, monthly and quarterly tax filings as well as preparing individual and business tax returns.

Mary Ellen received a BS in Accounting from Quinnipiac University.

David Chapman

Staff Accountant
Dave is a recent graduate who had previously completed two internships with our firm. He works with our business clients in a variety of roles including monthly accounting, monthly and quarterly tax filings, payroll processing and preparing individual and business tax returns.

David received a BS in Accounting from Post University.

Denise Alvarado

Associate
With over 15 years of experience working in a high volume accounts receivable department, she assists our clients with bookkeeping services as well as monthly and quarterly filing responsibilities. Denise is also responsible for our front office operations and tax season assembly and processing.

Denise received an Associate Degree in Office Administrative Careers in Business from Capital Community Technical College.

Cornelia Voils

Associate
After a previous career as a Registered Dietician, Cornelia began working with us during tax season. Now working year-round, her regimented and meticulous nature has made her an integral part of our team by organizing, tracking and monitoring the status of all of our work.

Cornelia received a BS in Food and Nutrition from Radford University.