Below are the tests that the ETS administers, including those for the College Board, its biggest client. The two have been associated since the ETS was founded in 1948.
| College Board | Projected Volume 1999-2000 | |
| SAT | 2.9 million | |
| Preliminary SAT | 2.1 million | |
| Accuplacer | 1.4 million | |
| Advanced Placement | 1.2 million | |
| College-Level Examination Program | 120,300 | |
| Multiple Assessment Programs and Services | 117,100 | |
| Academic Profile | 74,400 | |
| Algebridge | 13,200 | |
| Other Tests | ||
| PRAXIS: Professional Assessments for Beginning Teachers | 813,483 | |
| Test of English as a Foreign Language | 689,500 | |
| Graduate Record Examinations | 474,000 | |
| National Assessment of Educational Progress | 470,000 | |
| Education Records Bureau | 261,600 | |
| Graduate Management Admission Test | 201,000 | |
| California State University: English & Mathematics Placement Tests | 84,000 | |
| GRE: Major Field Tests | 51,400 | |
| Test of Spoken English | 22,800 | |
| PLUS Academic Abilities Assessment | 21,500 | |
| University of California Writing Exam | 17,900 | |
| Secondary Level Proficiency Test | 8,200 | |
| High Schools That Work | 8,000 | |
| Prueba de Admision para Estudios Graduados | 6,700 | |
| National Board for Professional Teaching Standards | 4,700 | |
| School Leaders Licensure Assessment | 1,330 | |
| Tasks in Critical Thinking | 1,140 | |
| SOURCE: Educational Testing Service |
