Contact Us


Colorado International School
2150 S. Cherry Street, Denver, CO 80222 (physical address)

2443 S. University Boulevard #208, Denver, CO 80210 (mailing address)

Phone:  303-282-6666
Fax:       303-759-5035
Office Hours: 9:00AM – 12:00PM M-F
School Hours: 8:00AM – 5:00PM M-F

Colorado International School is located in the University Hills neighborhood of Denver.  Close to intersection of Colorado Blvd, Evans Avenue and I-25.  We are convenient to most Denver locations and close to light rail.

If you are interested in attending CoIS, please contact us via the Information Request Page for best service and attention. Thank you!

2017-2018 Colorado International School Staff


Ms. Stephanie Debossu, Director and IB Coordinator (

Mr. Chris Deaser, Business Manager (