About us
We are members of:
• American Institute of Certified Public Accountants
• Massachusetts Society of Certified Public Accountants
• New Hampshire Society of Certified Public Accountants
• The National Society of Accountants
About the Principals
Jonalyn Sullivan, CPA is co-founder of Sullivan and Gannon, LLC. She is a CPA with 20 years of experience in both public accounting and corporate finance. Prior to co-founding Sullivan and Gannon, Jonalyn worked at both large regional and local accounting firms. Jonalyn serves a wide variety of organizations and industries as an accounting, tax and business advisor. She holds a Master of Science degree in Taxation from Bentley College and is a graduate of the University of Massachusetts – Lowell where she received her Bachelor of Science degree with a concentration in accounting.
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Laura Gannon, CPA is co-founder of Sullivan and Gannon, LLC. She is a CPA with over 17 years of experience in public accounting, working for both large regional and local firms.
Laura works primarily with closely held family businesses which often include multiple entities, trusts and the shareholders taxes. She currently serves as Treasurer on two boards, a not for profit: United We Stand for Jason and a networking group: The BNI Referral Team. Prior to entering public accounting Laura worked in a tax law firm and for the Internal Revenue Service in both auditing and litigation support positions. She is a graduate of Bentley College with a Bachelor of Science in Accountancy.
Laura is married to Simon Dolan and has three kids. In her spare time, she loves to cook (and eat), read, play soccer, ski, go to the beach and spend time with her family.
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Meet our Staff
Jennifer Gray, CPA is a graduate of Merrimack College and has obtained a Master in Science degree in Accounting and Finance from Southern New Hampshire University. Jennifer is a CPA with 13 years of accounting experience with the last 6 years in the public sector. She is a member of Delta Mu Delta International Honor Society in Business and the Massachusetts Society of CPA's.
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Anne-Marie Toomajanian is a graduate of Merrimack College where she received her Bachelor of Science degree with a concentration in accounting. She has over ten years experience in public accounting. Anne-Marie has practiced with both local and regional accounting firms.
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Diane Collett is a graduate of Central Connecticut State University where she received a Bachelor of Science in Business Administration, with a major in accounting. She passed the CPA exam and was employed at one of the large national accounting firms. Diane worked in the private sector for a number of years before joining Sullivan and Gannon.
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Sullivan and Gannon, LLC is a woman-owned, full service accounting firm located in Chelmsford, Massachusetts in the Merrimack Valley. We have technology to serve clients anywhere but most of our clients reside in the greater Boston, Merrimack Valley and Southern New Hampshire area. We offer the highest professional standards and a personalized approach for your needs.
