International Language Institute (ILI)


The International Language Institute (ILI) was founded in 1970 when it began its operations with four English as a Second Language (ESL) teachers and about 15 students. Over the past 45 years, our company has seen steady growth and developed a strong reputation around the world and locally for quality language training and academic preparation at a superior value. Today, we have hundreds of new students every year and the following two locations:

  • International Language Institute in Washington, DC
  • International Language Institute in Gaithersburg, MD

The International Language Institute has provided quality language training to thousands of students from around the world. All of our programs are accredited by ACCET, the Accrediting Council for Continuing Education and Training. ILI is licensed by the DC Educational Licensure Commission and is a member of AAIEP(American Association of Intensive English Programs), TESOL (Teachers of English to Speakers of Other Languages), WATESOL (Washington Area Teachers of English to Speakers of Other Languages), NAFSA (Association of International Educators), and ACTFL (American Council on the Teaching of Foreign Languages.)

Our Mission

Our mission is to provide high-quality language instruction and academic preparation, at a superior value, to satisfy the individual goals of those who choose to study for academic, professional, or personal reasons.



1717 Rhode Island Ave NW
Suite 100
Washington, DC 20036
Phone: +1-202-362-2505

Washington, District of Columbia, USA


26 North Summit Ave
Gaithersburg, MD 20877
Phone: +1-301-527-0600

Gaithersburg, Maryland, USA