Research is conducted in:

Laboratories, centers and observatories in cooperation with the University Council for Scientific Research. In addition to the laboratories for instruction attached to the Faculties of Engineering, Science and Medicine (Laboratory for the Study of Hereditary Sickness, Laboratory for Research in Surgical Sciences, Laboratory for Toxicology), there are a number of centers and observatories devoted to research, namely:

• Center for the Study and Analysis of Religious Facts, Euro-Lebanese
• Center for Intercultural Mediation in the Mediterranean Region – Beirut
• University Center for Ethics and Professional Conduct
• Technical Pole – Berytech
• Center for Chemical Research and Analysis
• Lebanese Center for Study and Research in Construction
• Center for Information Technology and Modelization
• Center for Electrical and Telecommunication Industries
• Regional Center for Water and Environment
• Center for the Study of the European Union
• Center for the Study of Law in the Contemporary Arab World
• Center for Economic Research and Documentation
• Center for the Study of Markets and Distribution in the Middle East
• Center for Arab Christian Documentation and Research
• Center for the Study of the Modern Arab World
• Center for the Study of Living Languages
• Center for the Study and Research of the Arabic Language
• University Observatory of Socio-economic Reality
• Francis Hours Center for Archaeology and Pre-history
• Center for Strategic Study and Research
• Laboratory for Cartography
• Laboratory for Research and Documentation on Tourism
• Laboratory for Atmospheric Observation
• Center for Michael Henri Studies
• Center  for Psychological Observation and Evaluation
• Center for Heredity and Clinical Psychology
• Center for Experimental and Cognitive Psychology.

Concern with Cultural Affairs

USJ organizes expositions, congresses and encounters, conferences and colloquia. It animates festivals, presents stage plays in two well known theaters – Monnot and Beyrit. Most of these activities have an international character.

Seat of four important chairs

• Jean Monnot Chair
• Sengor Chair for Francophony
• UNESCO Chair for Comparative Studies and Dialogue among Religions
• Chair for Intercultural Anthropology UNESCO.

Makes available to researchers and readers

General libraries
• Oriental Library (400,000 volumes in Islamic affairs, history, archaelogy, theology, fiqh, philosophy and Arab linguistics and literature, 1,300 periodicals, 3,500 rare manuscripts, 40,000 photos and post cards going back to the beginning of the 20th century. large collection of maps on Lebanon and the Middle East region).
• Library of Faris Zoghbie Cultural Foundation (60,000 volumes in law, political science, literature and culture).

Specialized libraries
Library of Social Sciences (100,000 volumes, 1,200 periodicals)
Library of Letters and Human Sciences (100,000 volumes, 250 periodicals)
Library of Medical Sciences (17.000 volumes, 2,000 periodicals)
Library of Engineering Sciences (25,000 volu,es, 300 periodicals)

Centers for Documentation
Museum of Lebanese pre-history.

Publishes

• Books from the University Press
• Serials
• Specialized journals