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Mattison

Mattison is an association management firm specializing in nonprofit associations.

Non-profit Organizations
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Headquarters
Indianapolis, Indiana, United StatesSource: RevenueBaseRetrieved October 13, 2026
Employee range
11 to 50Source: RevenueBaseRetrieved October 13, 2026
Founded
1988Source: RevenueBaseRetrieved October 13, 2026
Published list appearances
2 supported appearances ↗Source: RevenueBase lists
The company at a glance

What does Mattison do?

Mattison's staff offers a wide variety of skill sets. Mattison offers part-time services to associations that would otherwise be unable to afford a full-time executive director or staff.

Based on the company’s public LinkedIn information, supplied through RevenueBase.

Who it serves

Mattison specializes in managing nonprofit associations.

What the business offers

Services & capabilities.

Association leadership support

Mattison provides leadership, events, meetings, programs, and information to organizations.

Source: LinkedIn company description · Retrieved October 13, 2026

Explore the business in context

Company lists.

Supported appearances on published RevenueBase lists, including available memberships beyond displayed rankings.

Positions describe ordering within each source list. See how lists are built ↗

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BADGE PREVIEWMattison listed #4 on Nonprofit organization management companies, September 19, 2026Open the published source list.
Mattison

#4 Nonprofit organization management companies

Snapshot: September 19, 2026

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Company information

Sources & data notes.

RevenueBase prepared this profile from the company’s public LinkedIn information and RevenueBase company data. These source records were retrieved on October 13, 2026. AI helped summarize these sources, with a separate automated check against the source text completed on November 4, 2026. Directory positions use company-contact counts from separate saved list snapshots dated September 19, 2026 and September 27, 2026. How the company lists are built.

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