- Bakker Memory Lab - Arnold Bakker, Ph.D., M.A.
- Balagopal Lab - Viral Hepatitis and Translational Virology - Ashwin Balagopal, M.D.
- Beer Lab - Michael Beer, Ph.D., M.A.
- Benjamin Bodnar Lab - Benjamin Bodnar, M.D.
- Berger Lab - James Berger, Ph.D.
- Bert Vogelstein Laboratory - Bert Vogelstein, M.D.
- Best Laboratory - Simon Best, M.D.
- Bimal Ashar Lab - Bimal Ashar, M.D., M.B.A.
- Biophotonics Imaging Technologies (BIT) Laboratory - Xingde Li, Ph.D.
- Borahay Lab: Uterine Fibroid Research - Mostafa Borahay, M.B.B.Ch., Ph.D., M.B.A., M.Sc.
- Bowditch Research Group - Stephen Bowditch, Au.D., M.S.
- Bradford Winters Lab - Bradford Winters, M.D., Ph.D.
- Bradley Undem Lab - Bradley Undem, Ph.D.
- Brain Cancer Biology and Therapy Lab - Gregory Riggins, M.D., Ph.D.
- Brain Science Institute (BSi) - Jeffrey Rothstein, M.D., Ph.D.
- Brain Tumor Cancer Genetics Lab - Chetan Bettegowda, M.D., Ph.D.
- Brain Tumor Laboratory - Henry Brem, M.D.
- Braunstein Lab - Evan Braunstein, M.D., Ph.D.
- Brendan Cormack Laboratory - Brendan Cormack, Ph.D.
- Brendan J. Canning Lab - Brendan Canning, Ph.D.
- Brennen Lab - W. Nathaniel Brennen, Ph.D.
- Brent Petty Lab - Brent Petty, M.D.
- Brian Garibaldi Lab - Brian Garibaldi, M.D.
- Brindusa Truta Lab - Brindusa Truta, M.D., M.A.S.
- Brown Lab - Solange Brown, M.D., Ph.D.
- Bruce Leff Lab - Bruce Leff, M.D.