CISL San Diego named 2017 Best English School in North America by Japan's Ryugaku Journal

Quality English Language Schools
in San Diego and San Francisco

Intensive ESL Courses for International Students. Since 1972.


The mission of Converse International School of Languages (CISL) is to help our clients learn to communicate effectively
and with confidence in English.

With over 45 years of experience, Converse International School of Languages (CISL) is internationally recognized as a leader in effective language training. CISL’s locations in San Diego and San Francisco, California, offer programs and courses in English as a Second Language (ESL), including TOEFL, Cambridge English, and IELTS exam preparatory courses.

CISL is one of the only language schools in North America to guarantee a maximum of 8 students per class, providing every student with more speaking time and instructor attention than larger classes. In addition to improving their English language skills, CISL students have the opportunity to learn about other cultures in our diverse classrooms.

CISL language schools provide challenging and interesting classes designed to help students achieve their goals as quickly as possible. CISL instructors are trained to provide students with lessons catered to their personal, professional, and academic needs so they can begin communicating effectively and with confidence!

CISL students do more than just learn English. Students learn about different cultures and how to communicate with people from those cultures so that they can use English to connect with people from all over the world. Students can also experience many things in and around San Francisco and San Diego through the schools’ activity programs. School activities include things like visiting museums, wine tasting, rock climbing, and other fun things that help students to make new friends and use English in different situations.


CISL Overview

Career English Testimonial

Cambridge Preparation Testimonial

Adult English School Locations

San Diego

san diego downtown skyline

San Francisco


Junior Program Locations

Program Overview



UC Berkeley

uc berkeley english camp

LMU Los Angeles

University of San Diego

usd san diego english camp

San Diego Homestay

Group Study Tours

group study tours


5 Common Mistakes International Students Make

5 Common Mistakes International Students Make

How to Overcome a Fear of Speaking English

How to Overcome a Fear of Speaking English


international student activities

5 Things You Should Do in Your
First Week as an International Student

aaiep gray
cambridge bnw
cea gray