First Floor
- Auxiliary Services Business Office
- Chevy Chase Bank & ATM
- Copier machine
- Full-service Mail Services
- Meal Plans
- OneCard
- Paws, including Sweet Sensations
- SECU ATM
- Ticket Office
- Tiger Reels (movie rental)
- University Store
- Vending machines
- Auxiliary Services Administrative Office
- Black Student Union (BSU)
- Campus Life, including Fraternity and Sorority Life
- Campus Ministries
- Dining Services
- Offices of Event & Conference Services
- Loch Raven Room
- Patuxent Room (more formal dining atmosphere)
- Potomac Lounge (comfortable study and lounging spot)
- Severn Lounge (faculty/staff dining)
- Office of Student Activities, including Campus Activities Board (CAB), New Student Programs, Off-Campus Student Services and Student Leadership Programs
- Student Government Association (SGA)
- Susquehanna Food Court (mall-style eatery)
- University Union Information Desk
Third Floor
- African-American Cultural Center
- Asian Pacific Islander/Latino Student Development
- Center for Student Diversity
- Chesapeake Rooms (large, multipurpose spaces)
- Conference Rooms
- Lesbian, Gay, Bisexual and Transgender (LGBT) Student Development
- Queer Student Union (QSU)
- Students Achieve Goals through Education (SAGE) Program
- Office of The Towerlight (student newspaper)
- The Women's Center
University Union Garage
