- LPI General Departments
- Astro Space Centre
- Division of Quantum Radiophysics
- Optics Department
- Division of Theoretical Physics
- Division of Solid State Physics
- Nuclear Physics and Astrophysics Division (NPAD)
- Department of Neutron Physics
- Sector of Plasma Phenomena Theory (at LPI Directorate)
- Department of Physical Electronics
- Sector of Mathematical Physics
- Cryogenics Unit
- Troitsk Separate Division including Troitsk LPI Technopark
- Organizations at the LPI
- LPI Educational-Scientific Complex
- Branches
- LPI Shared Facility Centre for Studies of HTS and other Strongly Correlated Materials