Business Office Staff

Leon Losapio, Comptroller

Leon is a Certified Public Accountant (CPA) who hails from Yonkers, NY.  He earned his bachelor’s degree from the University of Michigan, and lived in Michigan for 13 years before relocating to Connecticut to earn his MBA from the University of Connecticut.  Leon joined the Grove School in 2013 as the school’s comptroller, and he runs our business office.  Leon brings 25 years of accounting experience to the Grove School, having worked for Price Waterhouse during his public accounting days, then serving a long career in the manufacturing and biotech industries with both private and publicly held companies before joining the Grove School.

Leon is a fairly accomplished horseman who served six years in the Connecticut Governor’s Horse Guards, including 4 years as the Riding Platoon Officer.  He is also a long-time beekeeper and is assisting with the beekeeping club at Grove School to help teach a new generation of beekeepers.

Diane Matteson, Assistant Business Manager
Business Office Staff

Diane has been at Grove School for 22 years working as an assistant in the Business Office.

She has seen many changes and improvements in the physical environment of Grove during that time.

Diane has enjoyed working in a school environment as her degree is in secondary education, and she had taught Home Economics in Connecticut and Massachusetts earlier in her career.  Upon moving to Connecticut in 1978 she and her husband bought a small business, and she took accounting courses and handled all the bookkeeping for the business.  She also worked for Shoreline Bookkeeping, and learned the ACCPAC accounting software before coming to Grove.  She was involved in the initial setup of this software at Grove.

Diane lives in Madison and enjoys being able to use the town beach facilities.  She also enjoys reading, knitting and spending time with her grandchildren.