Batangas Science School, a private school, was founded on November 23, 2000 by Jose de Castro and his spouse, Renie Macaraig - de Castro in Banay-banay, Lipa City. The school's first class had 19 students. The number of student gradually increased, noticeably during the school year 2002-2003, wherein 521 is studying at the school.
The school's motto was "Competence, Character, Compassion" and was then changed to "To Climb the Mountain, To Kiss the Clouds". The new emblem, which portrayed Mount Makulot with a coconut tree in the foreground, was designed by Mark Anthony de Castro, brother of Maria Lourdes de Castro, valedictorian of the pioneer class.
In its first year, the school published its first English school paper, Vanguard (Editor-in-Chief was Maria Lourdes de Castro), simultaneously with its Filipino counterpart, Kalasag (Editor-in-Chief was Altaire Thyra Bautista valedictorian). The following year, the school organ changed its name to The BSSAN (pronounced as Bessan,Editor-in-Chief was Daniel C. Lachica Jr.).
The school offers two curriculum in High School: The Science Curriculum and Arts Curriculum. and is now offering college courses.
During the end of year 2006, the school boards decided to change the school name to Batangas College of Arts and Sciences, offering three courses.