Sii Sp. z o.o.

Sii Sp. z o.o. (Sii Poland) is a leading Polish technology consulting and services firm specializing in IT, engineering and BPO solutions. Founded in 2006, Sii has grown to a large organization of over 7,300 professionals and reported substantial annual revenue. The company offers a broad portfolio spanning software development and maintenance, cloud consulting, data & analytics, cybersecurity, testing & QA, embedded and industrial engineering, enterprise platform implementation and BPO services. Sii operates across industries including manufacturing, healthcare, banking and retail, delivering nearshore and offshore delivery models and Build–Operate–Transfer engagement options. Sii maintains partnerships with major technology vendors (including Microsoft, Adobe, Salesforce, SAP and Google Cloud) and highlights Microsoft-focused offerings such as expanded Microsoft 365 services. The firm emphasizes scalable teams, talent sourcing for niche skills, and end-to-end support from consulting and business-process optimization through implementation, migration and managed services. Sii also provides training programs and markets case studies across high-tech, fintech, medical devices and more, positioning itself as a partner for digital transformation and enterprise modernization for global brands.