St. Mark’s and Hockaday made a prestigious list of North Texas high schools who are among the best in the state when it comes to sending students to Harvard, Princeton and MIT, reports the Dallas Business Journal. The data is from PolarisList, which ranks the best high schools in America based on the number of students they sent to those three elite colleges between 2015 and 2018.

St. Mark’s School of Texas was ranked as No. 2 and The Hockaday School at No. 3 in Texas. The schools had 25, 21 and 16 acceptances to the three universities respectively during the multi-year period.

The data analysts at PolarisList said they chose Harvard, Princeton and MIT to study based on “a combination of their selectivity and their accessibility to lower income students,” wrote the Dallas Business Journal.

“If a high school is able to send students to one of these three schools, it means that the school has created an environment to support high achieving students, whether it’s in academics or extracurriculars,” according to PolarisList.