Here are four national-scope organizations advocating for the rights of immigrants, including those under threat of deportation. They offer a mix of legal representation, training of attorneys, analysis of government policy and legislative proposals. Some arrange for pro bono assignments by attorneys in other legal fields.

Human Rights First. Founded in 1978, advised on drafting of the 1980 Refugee Act. A major concern is advocating for the asylum program in the United States. Arranges for pro bono representation of asylum candidates. Critiques government policies that affect the asylum program in the United States.

Immigration Legal Resource Center (ILRC).  Founded in 1979. Extensive program of publications and training on immigration law, such as this on the 287(g) program.  Created a “red card” for persons to keep in their pocket in the event of an arrest.

National Immigrant Justice Center (NIJC). Arose out of a Chicago community organization, it took its current name and went national in 1995. Facilitates legal representation of immigrants, analyzing government policy, for instance this March 2025 analysis of Congressional budget for immigrant law enforcement.

National Immigration Litigation Alliance (NILA). Focuses on litigation in federal court. Issues advisories. Here is a detailed advisory for attorneys addressing expedited removal cases, published 2/7/25.  NILA has a program to serve as co-counsels in cases in order to coach the attorney bringing the case to federal court.