AGENCY LIST

O'Neill Events & Marketing

Kansas City, Missouri, United States
Visit oneillevents.com

Crafting iconic events with meticulous detail and local flair

O'Neill Events & Marketing, known as 'The Wonder Engineers,' specializes in creating memorable events that capture the essence of Kansas City. Founded over 70 years ago, the agency is now female-owned and operated, with Keli O’Neill Wenzel at the helm. The team is dedicated to orchestrating events that leave attendees with a sense of magic and fulfillment.

The agency offers a range of services including event strategy, experiential activations, and event production. They are known for their logistical talents and extensive experience in managing high-profile events such as the Chiefs Super Bowl Championship Parades and the Boulevardia Festival. Their approach involves over-engineering and attention to detail to ensure every event is a success.

O'Neill Events & Marketing has a strong connection to the community, with Keli O’Neill Wenzel serving on various boards and holding certifications like the Women Business Enterprise (WBE). Their expertise is evident in their role as Sponsor Tour Director for major tours and co-producing significant local celebrations.

73
YEARS IN BUSINESS
2
SERVICES

Capabilities

Category

Event and Experiential Marketing

Services

Agency details

Team size
11-50 people
Founded
1953 (73 years)

About this agency on Agency List

O'Neill Events & Marketing holds an Agency List Score of 73 out of 100.

That score is higher than 32% of the 36,920 agencies Agency List has assessed so far.

The Agency List Score measures how well an agency documents its work in public: named clients, quantified outcomes, and whether those outcomes are attributed to the agency rather than to the client.

It does not measure client satisfaction, price, or availability.

How the Agency List Score is measured

Assessment date

Agency List assessed O'Neill Events & Marketing in September 2026, reading 3 pages published on oneillevents.com.

The score reflects what O'Neill Events & Marketing had published by that date; anything published since has not been read.

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