TIAA annuities are available to people who work for nonprofit organizations such as those in the academic, medical, government, research, and culture fields. Eligible institutions include nonprofit colleges and universities, nonprofit institutions in education and research, nonprofit private and public elementary and secondary schools, nonprofit hospitals, museums, libraries, federal, state and local governments, U.S. military, and nonprofits that fall under the classification of 501(c)(1),(3),(4),(5),(6),(7), or (10). To qualify, you must work for the organization for 3+ years or when you were 55 or older. Family members are also eligible including a spouse/domestic partner, parents, grandparents, siblings, and children (step, foster and in-laws) and grandchildren (step, foster and in-laws).