Our Story
Doug Mangen established Mangen & Associates in 2002. Doug developed a passion for public education while serving two terms on the Vandalia-Butler Board of Education and completing several projects with the Dayton Public Schools Board of Education.
A certified treasurer with over 20 years of experience, Doug has extensive knowledge in enhancing the fiscal health of Ohio schools while generating numerous awards from the Ohio Auditor of State for fiscal compliance and reporting.
Since the beginning, Mangen & Associates has been focused on providing high quality Treasurer, Financial Management, Operations, EMIS/SOES and CCIP Administration Services and Recommendations.
Meet the Team
Our team members are dedicated to supporting effective education initiatives and helping school leaders obtain the resources necessary to improve educational opportunities for each and every student.
Columbus Office

Doug Mangen
Founder

Connor Cooley
Financial Analyst

David Mangen
Finance Coach

Cassie Drewry
Project Manager

Matthew Howard
Accountant
Dayton Office

Nicki Hagler
Accounting Coach

Doug Brinkman
Accountant

Courtney Smith
Accountant

Ben Hollatz
Accountant

Racheal Kelley
Accountant

Patrick Hairston
Accountant

Makayla Hanes
Accountant

Rob Glynn
Accountant

Bailey Gerardi
Accountant
Cleveland Office

Melissa Gorbach
Accountant

Celeste Farmer
Finance Director

Justin Kelley
Financial Analyst