Synergy International Christian School

Small Protestant Christian school in Bellaterra, in the Cerdanyola del Vallès area outside Barcelona. American curriculum blended with Catalan and Spanish competencies, taught trilingually with a Charlotte Mason and Biblical-worldview lean. ACSI and MSA accredited.

One class per grade, capped at 15 pupils, which makes this one of the smallest international options in greater Barcelona. The school is run as a non-profit Christian community with values explicitly rooted in Protestant Christianity, which is the deciding factor either way for most families.

Independent parent voice is thin, in part because of the size and in part because the school keeps a low public profile. Headline fees in the directories sit well below the city's mainstream international schools. Best read as a niche option for Christian families who want an English-medium American-style education with a small, communal feel, rather than as a general-purpose international school.