B
- Baseball Athletic Team - (818) 677-7035
- Baseball Field - (818) 677-3233
- Basic Skills Math Lab, Learning Resource Center - (818) 677-2033
- Basketball Men, Athletic Team - (818) 677-3231
- Basketball Women, Athletic Team - (818) 677-3995
- Benefits, Human Resources - (818) 677-2101
- Bianchi, Donald E. Planetarium, Department of Physics and Astronomy (818) 677-5601
- Biochemistry Department
- Biodiversity, Center for the Study of - (818) 677-3353
- Biology Department - (818) 677-3356
- Bookstein Institute for Higher Education in Taxation - (818) 677-3600
- Bookstore, Matador (now CSUN Campus Store) - (818) 677-2932
- Budget Planning & Management (Faculty/Staff) - (818) 677-4233
- Business Administration Graduate Program
- Business & Economics, College of - (818) 677-2455
- Business Industry, Government and the Professions, Extended Learning - (818) 677-3911
- Business Law Department - (818) 677-2905
- Business Services/Commercial Services, University Student Union - (818) 677-2839 or 677-6028