Lloyd Hollenberg has a sustained record of achievements in quantum information science. He has created the physical-quantum information basis for a full-scale silicon quantum computer, drawing on his deep understanding of the physics involved. He has achieved major theoretical and experimental advances in the use of nitrogen-vacancy centres in diamond as quantum sensors in physical and biological applications. Hollenberg has also played a major leadership role in the Centre for Quantum Computation and Communications Technology, including mentorship of many students and post-doctoral fellows, service to the discipline, and enthusiastic promotion of physics to the public.