The following is a partial list of governments and other organizations that have selected the LCC at the University of Houston for their students' or employees' English language study since 1975:
International Agencies and Foundations
- Agency for International Development (AID)
- AMIDEAST
- ARAMCO
- Center for International Cultural Studies and Education (Japan)
- Hariri Foundation (Lebanon)
- Institute of International Education
- Mainichi Communications (Japan)
- National Collegiate Network (Japan)
Foreign Governments and Agencies
- Algeria
- Cameroon
- Indonesia
- Iran
- Kuwait
- Malaysia
- Mexico
- Saudi Arabian Educational Mission to the United States
- Thailand
- Scientific Mission of Tunisia
- Turkey
- Venezuela, Fundación Gran Mariscal de Ayacucho
Local and State Agencies in the U.S.
- Houston Police Department
- Texas Rehabilitation Commission
Educational Institutions
- Escuela Normal Superior No. 1 del Estado de México (Mexico)
- Universidad del Oriente (Venezuela)
- University of Texas Health Science Center at Houston - Dental Branch
- University of Texas Health Science Center at Houston - Graduate School of Biomedical Sciences
- University of Texas Health Science Center at Houston - School of Public Health
Yago School España, S.A. (Spain)
U.S. and Foreign Corporations
- AMSOVCO
- China National Offshore Oil Company (Peoples' Republic of China)
- Huffco Engineering Systems
- Human Resources Development Institute (Costa Rica)
- Igloo Corporation
- International Fabrication and Supply Corp., Inc.
- Nippon Pigment (Japan)
- Oasis Oil Company of Libya, Inc. (Libya)
- Petróleos Colombianos, Ltd. (Colombia)
- Saudi Petrochemical Company (Saudi Arabia)
- World Wide Technical Services Company, Inc.
- Worley Engineering Company, Inc.
- Saudi Arabian Airlines