Sii Poland
IT Services and IT ConsultingMasovian, Poland5001-10000 Employees
Based in Warsaw, in the Masovian region, Sii Poland provides IT services and consulting, focusing on technology advisory, AI-driven digital transformation, and engineering work along with related business services. The firm supports clients through testing, software development, infrastructure operations, and end-to-end system integration and maintenance. Its client roster spans more than 200 global companies across sectors such as automotive, healthcare and life science, financial services, banking and insurance, retail, logistics, consumer products, hi-tech, electronics, industrial engineering, and the public sector and utilities. Sii Poland is a sizable, established IT services and consulting firm in Poland. In 2026, it earned first place in the Great Place to Work rankings for large companies.