About Brandeis University. Brandeis University in Waltham, MA reports an overall acceptance rate of 45.0%, an early-round acceptance rate of 42.2%, an SAT middle 50% of 1415–1510, a class size of 865, and a yield of 22.0% based on the most recent Common Data Set filings. Research university founded in 1948 as the only nonsectarian Jewish-sponsored institution. Strong in social policy, neuroscience, and international economics.