We specialize in managing non-profit associations. Mattison was founded in 1988 and has experienced modest but steady growth over each of the past twenty four years.

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.
Scott Grimes
Chris Price
Robert Riggs, CAE
Lane Velayo, CAE
Isaiah Adona
Director of Marketing
Jessica Deak-Sims
Association Coordinator
Kate DeHaan
Association Manager
Sarah Everhart
Director of Finance & Operations
Stephanie James
Association Director
Vanessa Jimenez
Marketing Coordinator
Nate Klinck
Executive Director
Nicole Likens
Association Administrator
Jesse Linville
Lead Instructor
Gary Martin
Safety Director
Heather Martin
Program Director
Matthew Nance
Lead Instructor
Stephan Oeschle
Director of Fraternal Operations
Meaghan Owens
Association Coordinator
Paige Riley
Safety Director
Hollison Shafer
Association Coordinator
Travis Smith
Director of Engagement
Marcy Watson, CAE
Program Director

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