There are seven branches of HTS in the Houston area. A total of over 530 students are currently (Academic year 2018-19) enrolled in these branches. Tamil language is taught in nine levels (grades) starting from Pre-Kinder Garden to Level 8.
There are over seventy voluntary teachers. Alongside of these teachers there are several volunteers helping to run the schools as coordinators, treasurers, secretaries, committee members, etc. Without these volunteers, it is difficult to run the schools.