ICS International School

A Cambridge International school in Phnom Penh that grew out of an IT training group, with a primary-to-A-level pathway and a cohort that skews Cambodian and budget-conscious.

ICS sits inside the wider ICS Group, originally founded in 1993 as an IT training joint venture between Cambodian and Singaporean partners. The school itself opened in 2005 and runs Cambridge Primary, Lower Secondary, IGCSE and Cambridge International AS and A Level. Fees sit in the lower international tier and the campus serves roughly age 2.5 to 17.

Parent and teacher feedback is mixed in a way that matters for prospective families. Positive voices highlight supportive teachers and a balance between academics and activities. The recurring criticisms cluster around tired facilities, limited on-site sports infrastructure that pushes activities offsite at extra cost, and concerns about turnover in management and teaching staff. Families who want Cambridge rigour at a Cambodian price often start here. Families with budget for ISPP, Northbridge or the Canadian International School will usually weigh those alternatives carefully against ICS.

• Independent reviews of ICS Phnom Penh are mixed and thin, with one teacher review and a small set of parent comments.
• A teacher described it as an average international school with a solid Cambridge curriculum and supportive administration, but flagged heavy workloads and uncompetitive pay.
• More critical comment focuses on facilities: described as old and dusty, with broken fans and air-conditioning, no on-site sports facilities and parents charged extra to use external venues.
• The school positions itself as a Cambridge International Centre with a Primary-to-Advanced continuum.
• Parent volume is low; what is online does not yet support a confident verdict on day-to-day experience.