CLIENT CONCIERGE JOB DESCRIPTION. 828 Venue Management Company is the nation’s fastest growing network of inspiring event venues with unique concepts that attract events of all types. UNION, 828's first multi-story venue, launched in 2019 in Kansas City, Missouri. . 828 has eight locations in seven different states nationwide. As a company we enjoy a dynamic and exciting work environment, continued learning and development, along with the confide...