ABOUT

Mattison

We specialize in managing non-profit associations. Mattison was founded in 1988 and since has experienced modest but steady growth over each year.
WHO WE ARE

We take pride in what we do.

Our hard work and desire to carry out the mission of the associations we serve, has resulted in sustainable growth for our clients, built on a foundation of trust and long lasting relationships.
Running on EOS® guides Mattison in achieving clients’ goals. Both member and stakeholder alike see this simple set of practical tools aiding Mattison in operating well so that we can focus on our impact.
Scott Grimes
Partner
Chris Price
Partner
Marissa Beck
Association  Manager
Aimee Conrad-Hill
Executive Director
Jessica Deak-Sims
Association Coordinator
Katelyn DeHaan
Executive Director
Sarah Eller, CAE
Executive Director
Kate Garrison
Executive Assistant
Jasmine Gettis
Financial Administrator
Kyle Hickman
Executive Director
Thihees Higgs
Controller
Vanessa Jimenez
Marketing Manager
Maria Johnson
Association Coordinator
Jesse Linville
BY Training Instructor
Tyshara Loynes
Association Coordinator
Gary Martin
Safety Director
Heather Martin
Program Director
Sophia Montoya
Association Administrator
Matthew Nance
Integrator/ Executive Director
Meaghan Owens
Director of Adult Programs
Brooke Paddack
Program Support Specialist
Daniel Perryman
BY Navigator
Macoy Riley
BY Employment Navigator
Paige Riley
Association Manager
Luke Schmidt
Association Administrator
Jamie Sonnentag
Association Coordinator
Carleen Underwood
Bookkeeper
Kate Walters
Director of Youth Programs
Marcy Watson, CAE
Executive Director
Angela Watts
Association Administrator
Odessa Wieland
Marketing Coordinator
Macauley Wieland-Horning
Association Manager,
K12 Initiatives
Madalyn Williams
Coordinator,
K12 Initiatives

25+ years

Founded in 1988, we continue to specialize in non-profits

100+ events

We plan and deliver over 100
events per year
We’ve been recognized as one of the Best Places to Work in Indiana. Learn more at BizVoiceMagazine.
Most of our efforts are put toward growing our clients. Our philosophy is if they grow, we will grow. We’re about leading and helping solve problems in industries and communities.
Scott Grimes
Partner