With over 14,000+ international schools worldwide, serving almost 7 million students and 665,000 teachers, international schools are a large and growing global business. These institutions offer globally recognized curriculums, primarily in English, and act as gateways to international higher education and global career opportunities. Drivers of demand are globally-minded families. Parents, including diplomats, expats, and international professionals, see international schools as a means to provide their children with better post-secondary options and prepare them for the global workforce.

While international schools are common in cities across the globe, 57% of international schools operate in Asia. Government influence affects international school growth, with some governments (e.g., in Southern Asia) encouraging it and some (e.g., in East Asia) placing varying levels of restriction.

International schools can operate independently, as part of cross-border networks, franchises, or even as fully online, virtual schools. The latter is a rising trend, catering to students facing geographical or financial constraints by offering international education at more accessible price points. Despite the diverse operational models, a common thread lies in the standardized international curriculums offered. Organizations like Cambridge International Education, Pearson's Edexcel, the International Baccalaureate, and the International Curriculum Association provide these programs. While regulation may be absent in certain countries, schools seek accreditation from established associations like MSA-CESS, NEASC, Cognia, CIS, and FOBISIA to ensure quality and credibility.

International schools will continue to be a key model in the K12 landscape as globalization progresses and as parents seek to ensure that their children develop skills and perspectives that are valuable in a global workforce.