Missy Slay is a veteran event planner who has managed events and festivals throughout the United States.


SEMAC’s services include event conceptualization and planning; vendor, venue and catering selection and management; entertainment production; sponsorship solicitation and budget management; on-site production; and event PR and marketing.


Missy has served as the executive director for the Local Organizing Committee on behalf of the community’s biggest sporting events, including the 2005 NCAA® Men’s Final Four® basketball tournament. The tournament attracted 54,000 fans and generated an economic impact of $71.9 million for St. Louis.  Missy also served as the executive director of the 2001 and 2009 NCAA® Women’s Final Four® basketball tournaments, earning recognition for coordinating some of the most successful NCAA® Women’s Final Fours® ever.


In 2009, Missy was part of the Local Organizing Committee that hosted Major League Baseball’s All-Star Game in St. Louis.  The All-Star Game included all-star entertainment outside of Busch Stadium, a Fan Fest at the Edward Jones Dome and the Pepsi Charity Concert featuring Sheryl Crow. Major League Baseball Commissioner Bud Selig proclaimed the event “four great, triumphant days for baseball.”


From 2005-2009, Missy orchestrated the region’s premier free music festival as executive director of the Fair Saint Louis Foundation, producer of the Fair Saint Louis Fourth of July spectacular and LIVE on the Levee music summer weekend festival.  Held annually under the Gateway Arch, Fair Saint Louis and LIVE on the Levee bring together corporate sponsors to host one of the most successful free community events in the country, attracting top musical acts from a diverse array of musical genres and pairing them with local talent, children’s activities, and festival fare. During Missy’s tenure, she brought in musicians including but not limited to: Train, One Republic, Anthony Hamilton, Jason Mraz, Cyndi Lauper, Joss Stone and many more.


In 2010, Missy began producing the Rock ‘n’ Roll Marathon to benefit Team Activities for Special Kids (TASK), a St. Louis-based non-profit whose mission is to enrich the lives of kids with special needs by providing athletic and social opportunities. As the event producer, she has brought in runners from 17 countries, coordinated the race weekend hospitality/events and most importantly helped the event raise over a million dollars for TASK over the past three years.  Missy also produced the Make-A-Wish Night of Wishes, the charity’s annual signature gala that featured the St. Louis Rams. 


After successfully producing several Rams events while the team was in St. Louis, the Rams turned to SEMAC to produce their first public event upon the team's relocation to Los Angeles, the 2016 NFL Draft Party.  With the first pick in the NFL Draft and all eyes on Los Angeles, SEMAC worked efficiently to develop vendor relationships, navigate city and venue regulations, develop programming featuring national media personalities, current as well as Hall of Fame Rams players and coordinate media credentialing and attendance.


Throughout the year, Missy produces a wide variety of events for clients ranging from political candidates, non-profit organizations to corporate clients.


Missy is a graduate of Catholic University with a bachelor’s degree in political science and communications.  She was named to the St. Louis Business Journal’s “40 under 40” list in 2000. The St. Louis Business Journal also recognized her as a “St. Louis Influential”, a business and community leader who is making a definite impact on the region.  She also joined the likes of Bob Costas, Jack Buck and Buzz Westfall as a recipient of the Sam Muchnick Sportsman Award from the MS Society recognizing her business leadership and entrepreneurial spirit that makes a meaningful difference within the St. Louis sports community.