| Educational System Technological Institute (E.S.T.I.), the first of the ESTI / ESC schools was founded in 1990 to pioneer in computer education services in the province of Marinduque. Initially, only short term vocational courses, like Office Management with Computer Technology and Electronics Technology were offered but as the need for four year academic programs became evident, the educational institution started offering B.S. in Computer Science and B.S. in Business Administration.
Marinduque being an island province has a fine tradition of producing competent seafarers. These professionals are well respected and admired by the local community such that many among the youth aspire to become one of them. This fact and the clamor of the community paved the way for the institution's opening of a maritime school. One year and two years seaman training programs, both vocational courses were offered first. Then on June 1996 , B.S. in Marine Transportation was introduced.
For the succeeding years, E. S. T. I. started to offer socially relevant academic programs such as Pre-Elementary Education, Elementary Education, Secondary Education, BS in Education and BS in Criminology. In line with the institute's desire to help the students and parents save on education cost, beginning S. Y. 2003-2004 E. S. T. I. converted all four year semestral programs to trimestral except for B. S. Marine Transportation, there by allowing students complete four year courses in a minimum of three years.
To further enhance the institute's effectivity in providing education, E. S. T. I. in 1998 started implementing "Quality Management System" under ISO 9001 Model. Ultimately in 1999 the institutes quality system was certified by the Lloyd's Register Quality Assurance (LRQA) of London, the United Kingdom up to the year 2003. thereafter up to the present Year 2005 SocieteGenerale de Surveillance (SGS) of GenevaSwitzerland has been the ISO 9001:2000 registrar of E.S.T.I..
International Organization for Standardization (ISO) 9001:2000 certification assures the students, parents and the comm. unity in general that the management system and quality of education being provided by E.S.T.I. is at par with internationally accepted standards. ESTI at present is the only organization or corporation with an ISO 9001-2000 certification in the whole province of Marinduque.
To be able to extend quality education to other areas, E.S.T.I. established branches in Odiongan, Romblon and San Jose, Occidental Mindoro in the year 2000 and 2003 respectively. In 2012, the Gloria Oriental Mindoro branch started its operation and in year 2013, Erhard Science College, a branch in San Rafael, Bulacan was established.