The decision — one of the first to affect the private sector in the wake of the Supreme Court’s June decision upending race-conscious college admissions — throws into disarray an SBA program that has served minority-owned small businesses for about five decades. Legal experts said it could signal trouble for other programs meant to help underrepresented groups win federal contracts, including veterans and women. Approximately 4,800 businesses participate in the 8(a) program, and nearly 4,000 of them were certified under the presumption of social disadvantage, according to the SBA. In 2020, 8(a) firms were awarded $34 billion in government contracts, according to a Congressional Research Service report.