Sii Poland

Sii Poland is a Polish IT services and engineering firm founded in 2006 with 7,500+ employees and annual revenue of 2.1 billion PLN. The company operates from multiple offices across Poland and has subsidiaries in Sweden, Ukraine, and India. Sii positions itself as a provider of technology consulting, AI-driven digital transformation, and engineering services across sectors ranging from fintech to healthcare, retail, and industrial manufacturing.

The company works with enterprise platforms including Microsoft, Salesforce, SAP, ServiceNow, Atlassian, Adobe, Google Cloud, and Workday HCM. It serves clients across 15+ countries including Austria, Belgium, Denmark, Finland, Germany, Netherlands, Norway, Sweden, Switzerland, UK, and USA, indicating a nearshore and offshore delivery model centered in Central/Eastern Europe.

Services and capabilities

Sii's service portfolio spans several categories. Testing & QA work includes automated testing frameworks and tools like Tricentis and Cypress. The company runs a Testing Lab that conducts research on AI's impact on QA productivity. Cloud services cover AWS, Azure, and Google Cloud infrastructure. IT infrastructure work includes data center support, Break & Fix repairs delivered within 2 hours in major Polish cities, IMAC (Imaging, Migration, Assets, Configuration), and Smart Hands services.

Service Desk & User Support is offered 24/7/365, available remotely or on-site. Sii applies ITIL best practices with defined SLA and KPI metrics. First-line support uses AI chatbots, virtual agents, and multilingual IT specialists. Application support and local on-site support (Break & Fix, Data Center management) round out the offering. One case study mentions supporting 3,500 employees for a global construction and industrial manufacturing leader.

Digital services include e-commerce modernization, consulting, and enterprise platform implementation. Data & Analytics, Embedded Systems, Industrial Engineering, BPO, Cybersecurity, IoT, and Agile delivery are listed as specializations. The company also offers Build-Operate-Transfer models and External Lab Solutions.

Notable work

Sii lists four named case studies on its homepage. Qiagen received technology for cancer detection, genetic analysis, and criminal identification. Diagnostyka had its sales process transformed via Salesforce implementation. Interhyp received microservices-based fintech solutions. Berlingske Media modernized its digital services, and ABB received a Quality Control Center for IT systems.

Clutch reviews from named clients include Mateusz Pawlak (Project Manager, retail/logistics in Switzerland) noting smooth change integration without schedule or quality impact. Robert Vuković (Director of Engineering, fintech in Netherlands) praised their sense of responsibility and integration as internal team members. Bartosz Skłodowski (Deputy Head of Sales, healthcare in Poland) noted smooth, well-managed process. Other reviewers from software vendors (Sweden), consumer goods (Poland), public sector (Iceland), insurance (Denmark), and fintech (Norway) cite consultant quality, responsiveness, and talent acquisition.

How they work

Sii operates a nearshore model with offices in Poland, Sweden, Ukraine, and India. Service Desk support is available 24/7/365 remotely or on-site. Local response time in major Polish cities is 2 hours maximum for Break & Fix services. The company uses ITIL-based processes, ITSM tooling, and defined SLA/KPI metrics for performance management. Multilingual support is standard (Polish, English, German mentioned in the Service Desk offering; one case study mentions six-language support for Sudzucker). Pricing is not disclosed on the public website.

Team and credentials

Sii has 7,500+ employees (described as "Power People"). The company was founded in 2006 and is celebrating 20 years of operation. It holds the position of Poland's largest IT employer (#1 CIT — largest taxpayer in Poland's IT sector). No specific founder names are listed in the source. Certifications mentioned include ITIL compliance and ISTQB (testing qualification). Partner status with major platforms (Microsoft, Salesforce, SAP, ServiceNow, Atlassian, Adobe, Google Cloud, Workday HCM, Tricentis) is highlighted. The company emphasizes ESG and sustainability initiatives, a volunteer program (Sii Power Volunteers), and passion sponsorship. Proud official partner of Polonia Warszawa (football club).