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We are Power People!

Sii Poland is the leading technology consulting, AI-driven digital transformation, engineering, and business services vendor in Poland. We started as a one-person startup in 2006. Now, we have a team of 7 500+ experts, operating from 14 offices in Poland and 4 offices abroad (Sweden, Ukraine, India, Malaysia). 

  • Min project size
    Undisclosed
  • Hourly rate
    Undisclosed
  • Employees
    1,000 - 9,999
  • Locations
    Warszawa, Poland
  • Year founded
    Founded 2006

14 Locations

  • Warszawa , Poland
  • Gdańsk , Poland
  • Wrocław , Poland
  • Poznań , Poland
  • Kraków , Poland
  • Łódź , Poland
  • Lublin , Poland
  • Katowice , Poland
  • Rzeszów , Poland
  • Piła , Poland
  • Bydgoszcz , Poland
  • Białystok , Poland
  • Szczecin , Poland
  • Toruń , Poland

No Focus Areas have been added yet…

Industries
Financial services
20%
Medical
15%
Retail
15%
Automotive
10%
Information technology
10%
Manufacturing
10%
Telecommunications
10%
Media
5%
Utilities
5%
Clients
Enterprise (>$1B)
75%
Midmarket ($10M - $1B)
20%
Small Business (<$10M)
5%
Certified in:
Custom Software Development Application Testing

Pricing Snapshot

Min. project size Undisclosed
Avg. hourly rate Undisclosed
Rating for cost 4.8 /5

What Clients Have Said

Sii Poland offers competitive pricing and good value for cost, with clients noting favorable pricing structures that align with budgets. Projects are generally delivered on time, with high-quality results, showcasing an efficient cost-benefit ratio across various engagements.

This summary is based on verified Clutch reviews.

Most Common Project Size

< $49,999 based on 14 reviews
< $49,999 $50,000 - $199,999 $200,000 - $999,999 > $1,000,000

Select a service to see pricing information

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Sii Poland Review Insights

Overall Review Rating

4.9
  • Quality 4.9
  • Schedule 4.9
  • Cost 4.8
  • Willing to Refer 5.0

Top Mentions

Review Highlights

  • High Employee Satisfaction

    Clients report high satisfaction with Sii Poland's team members, noting low staff turnover and the ability of new hires to quickly integrate and contribute effectively to projects.

  • Room for Improvement in Innovation Suggestions

    While generally satisfied, one client suggested that Sii Poland could enhance their service by offering more proactive ideas for application outlook and leveraging past experiences to propose innovative solutions.

  • Excellent Project Management

    Sii Poland is commended for their solid project management skills, delivering projects on time and within budget. Clients note their clear communication, proactive approach, and ability to adapt to changes, ensuring smooth project execution and successful outcomes.

  • High-Quality Deliverables

    Sii Poland is noted for delivering high-quality solutions that meet or exceed client expectations. Clients report successful project outcomes, improved processes, and enhanced operational efficiency as a result of their work.

  • Responsive and Collaborative

    Clients highlight Sii Poland's responsiveness and collaborative nature. They value the company's commitment to understanding client needs, providing quick responses to queries, and working closely with internal teams to achieve shared goals.

  • Flexibility and Adaptability

    Sii Poland is recognized for their flexibility and adaptability in handling project changes and evolving client requirements. Clients appreciate their ability to integrate seamlessly with existing teams and processes, facilitating effective collaboration.

Sii Poland Reviews

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Custom Software Development for IT Services Company

  • Custom Software Development
  • Other app platform
  • Confidential
  • Jan. 2025 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
4.0
Willing to Refer
5.0

"We have a trustworthy relationship with Sii Poland."

Sep 19, 2025
General Manager, IT Services Company
Tomasz Manugiewicz
  • Other industries
  • Krakow, Poland
  • 1-10 Employees
  • Online Review

Sii Poland has worked on an IT services company’s engineering platforms. The team has worked on the client’s sports, gaming, data, and AI automation domains and produced components for their platforms.

CRM Consulting & SI for Education Company

  • CRM Consulting and SI
  • Confidential
  • Jan. 2023 - June 2025
5.0
Quality
4.5
Schedule
5.0
Cost
4.5
Willing to Refer
5.0

"We had a close and good collaboration with them."

Sep 4, 2025
Former CTO, Education Company
Anonymous
Verified
  • Education
  • Kristiansand, Norway
  • 51-200 Employees
  • Online Review
  • Verified

Sii Poland developed a Salesforce environment for an education company. The team was responsible for customizing the platform based on the client's business needs and rules.

IT Managed Services for IT Services Company

  • Digital Engineering IT Managed Services Web Development
  • Azure Platform
  • Confidential
  • Jan. 2023 - July 2025
5.0
Quality
5.0
Schedule
5.0
Cost
4.0
Willing to Refer
5.0

"Their ability to stay agile while maintaining clear communication made them stand out."

Aug 9, 2025
Project Manager, IT Services
Anonymous
  • Other industries
  • London, England
  • 201-500 Employees
  • Online Review

Sii Poland provided IT services for an IT services company. The team worked on user authentication, IT asset lifecycle management, incident and change management, and third-party tool integration.

E-Commerce & Web Development for Apparel Company

  • E-Commerce Development Web Development
  • Windows server Kotlin MongoDB Operations & process improvement Other BI & analytics Business Process Management Consulting Business Transformation Consulting Change Management Consulting eCommerce Consulting Strategy Development Consulting Talent Consulting Google Cloud Cloud Server Migration Data engineering DevOps CI/CD Services DevOps Consulting Digital Transformation Magento Other ecommerce systems Adobe Experience Manager CMS NextJS NodeJS React Native Symfony VueJS GA4 consulting HTML5 IT Governance jquery Business Intelligence Mobile App Development Mobile Commerce Android App Development iPad iOS App Development iPhone iOS App Development Other mobile OS Managed Software Application & Solutions Disaster Recovery Hardware Help desk IT Budgeting Software Evaluation OPEN API Product Management Consulting Java JavaScript PHP Swift REST API SOAP API Release & Version Management Webhook API Flutter React
  • Confidential
  • Dec. 2021 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"This forward-thinking mindset contributes to the project's overall success."

Oct 4, 2023
Technical Project Manger, Modivo S.A.
Filip Sadowski
  • eCommerce
  • Zielona Gora, Poland
  • 1,001-5,000 Employees
  • Online Review

An apparel company has hired Sii Poland to restructure their e-commerce site and modernize their main website. This involves migrating the site from Magento 1 to Magento 2 and developing back-office features.

Showing 41-44 of 44 Reviews

Locations (14)

Niepodleglosci 69 Av. Warszawa, Poland 02-626

1001 - 2000

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