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We are Power People!

Sii Poland is the leading technology consulting, 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 3 offices abroad (Sweden, Ukraine, India).

  • 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 is noted for providing good value for cost, with pricing fitting client budgets across various projects. Clients frequently highlight their strong technical skills, flexibility, and effective project management, ensuring timely delivery and responsiveness to needs.

This summary is based on verified Clutch reviews.

Most Common Project Size

$50,000 - $199,999 based on 12 reviews
< $49,999 $50,000 - $199,999 $200,000 - $999,999 > $1,000,000

Select a service to see pricing information

Highly Rated Similar Providers

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

  • Room for Improvement in Proactive Initiative

    Some clients suggest that Sii Poland could enhance their proactive initiative by offering more suggestions and alternatives based on their experience, especially in design and strategic decisions.

  • High-Quality Deliverables and Cost Efficiency

    Clients consistently report receiving high-quality deliverables from Sii Poland, emphasizing the good value for cost and the company's ability to meet budget constraints while delivering excellent results.

  • Professionalism and Dedication

    The professionalism and dedication of Sii Poland's team are frequently lauded by clients, who appreciate their commitment to delivering high-quality work and achieving project goals.

  • Impressive Talent Pool and Recruitment

    Sii Poland is recognized for their ability to attract and retain top talent, providing skilled professionals who quickly integrate into client teams and contribute effectively.

  • Strong Communication Skills

    Clients highlight Sii Poland's excellent communication skills, noting their ability to maintain consistent and transparent communication throughout projects, enhancing collaboration and alignment.

  • Effective Project Management

    Clients commend Sii Poland for their solid project management skills, delivering projects on time and maintaining clear communication. Their proactive approach and responsiveness to client needs are frequently highlighted.

Sii Poland Reviews

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Custom Software Dev & App Testing for Software Company

  • Application Testing Custom Software Development
  • Automation Testing Regression Testing Sanity Testing
  • Confidential
  • July 2025 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
4.0
Willing to Refer
5.0

"Sii Poland has very good technical skills, a great understanding of engineering needs, and a highly motivated team."

Jan 23, 2026
ITV Engineering Group Manager, Aptiv Services Poland S.A.
Jaroslaw Lasek
Verified
  • Automotive
  • Krakow, Poland
  • 1,001-5,000 Employees
  • Online Review
  • Verified

Sii Poland has built a team that handles testing Android builds on a virtual target using Cuttlefish for a software company. The team handles the whole process, from developing tools to sending test results.

Data Consulting for Hearing Aid Company

  • API Development BI & Big Data Consulting & SI
  • $200,000 to $999,999
  • Jan. 2024 - Oct. 2025
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"They were great in all aspects."

Nov 4, 2025
Senior Director of BI & Analytics, WSA
Saket arora
Verified
  • Medical
  • Denmark
  • 10,001+ Employees
  • Online Review
  • Verified

Sii Poland executed a data strategy for a hearing aid company. The team architected and built the client's data and integration platforms and developed data products for finance, sales, and operations.

Data & Analytics Support Services for FMCG Company

  • AI Development BI & Big Data Consulting & SI Cloud Consulting & SI
  • Machine Learning Azure AI & Machine Learning Azure Analytics Azure Development Azure Migrations Microsoft BI & data solutions Operations & process improvement Azure Cloud Consulting & Implementation
  • Confidential
  • Nov. 2022 - Nov. 2025
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"The partnership feels effortless and built on mutual trust and accountability."

Oct 31, 2025
Head of IT & Data, Danone
Patryk Hyla
Verified
  • Food & Beverage
  • Warsaw, Poland
  • 10,001+ Employees
  • Online Review
  • Verified

Sii Poland provides data and analytics support to an FMCG company. The team's work covers data engineering, integration, and solution design in Azure, Databricks, and Snowflake environments.

Graphic Design for IT Services Company

  • Graphic Design Print Design Video Production
  • Confidential
  • Jan. 2024 - Ongoing
4.5
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"Sii Poland has demonstrated a deep understanding of both design and our business needs."

Oct 27, 2025
Graphic Designer, IT Services Company
Anonymous
Verified
  • Other industries
  • Sweden
  • 1,001-5,000 Employees
  • Online Review
  • Verified

Sii Poland provides graphic design services for an IT services company. Their work focuses on creating print and animated content to support the client's marketing campaigns and trade show presence.

Automation Bot Development for Restaurant Company

  • AI Development Custom Software Development
  • Confidential
  • Jan. 2020 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
4.5
Willing to Refer
5.0

"They're highly engaged, responsive, and collaborative."

Oct 21, 2025
Process Delivery Manager, Restaurant Company
Anonymous
Verified
  • Other industries
  • Wroclaw, Poland
  • 10,001+ Employees
  • Online Review
  • Verified

Sii Poland has delivered automation bots that handle daily accounting tasks like data entry and reporting for a restaurant company. The goal is to improve data quality and streamline operations. 

Custom Salesforce Development for Smart Payment Terminals Co

  • Application Management & Support Cloud Consulting & SI Custom Software Development
  • $10,000,000 +
  • Jan. 2022 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"The team was always ready to respond quickly to scope changes and blockers."

Oct 15, 2025
IT Salesforce Manager, Ingenico
Eric de Taevernier
Verified
  • Other industries
  • France
  • 1,001-5,000 Employees
  • Online Review
  • Verified

Sii Poland has developed and maintained a custom Salesforce solution for a smart payment terminals company. The team has integrated the system with internal tools, APIs, and third-party services.

Application Testing for HVAC Components Manufacturer

  • Application Testing
  • Confidential
  • Nov. 2023 - May 2024
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"The team consistently delivered high-quality results and demonstrated excellence across all aspects of their work."

Oct 7, 2025
Head of integration & System Testing, Trapeze Switzerland
Harinder Singh Bora
Verified
  • Automotive
  • Zuerich, Switzerland
  • 1,001-5,000 Employees
  • Online Review
  • Verified

Sii Poland provided app testing services for an HVAC components manufacturer. The team handled automation for a digital twin, implemented cross-platform app testing, and created a performance testing framework.

IT Managed Services for IT Company

  • Application Testing IT Managed Services
  • Confidential
  • Aug. 2025 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
4.5
Willing to Refer
5.0

"Their flexible approach and availability have made the collaboration smooth and reliable."

Oct 1, 2025
CTO, OMNILOGY SP ZOO
Tomasz Plonski
Verified
  • Information technology
  • Warsaw, Poland
  • 11-50 Employees
  • Online Review
  • Verified

Sii Poland has been hired to implement Dynatrace as a centralized observability and app performance monitoring tool for an IT company. The team has configured and rolled out Dynatrace across critical systems.

Custom Platform Dev for FinTech Solutions Company

  • Application Testing Custom Software Development Microservices Architecture Services
  • Automation Testing Java Go
  • Confidential
  • Jan. - June 2025
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"What stood out was their sense of ownership. They acted like part of our internal team."

Sep 29, 2025
Dirctor of Engineering, Worldline
Robert Vuković
Verified
  • Financial services
  • Hoofddorp, Netherlands
  • 10,001+ Employees
  • Online Review
  • Verified

Sii Poland developed and maintained a custom software platform for a fintech solutions company. The team handled the full development cycle, including implementation, testing, and post-launch support.

CRM Setup & Cybersecurity for Laboratory Diagnostics Co

  • CRM Consulting and SI Custom Software Development Cybersecurity
  • $50,000 to $199,999
  • Jan. - July 2025
5.0
Quality
5.0
Schedule
4.0
Cost
4.0
Willing to Refer
5.0

"Overall, our experience with Sii Poland was very positive, and the project was delivered successfully."

Sep 26, 2025
Organizational Dev Director, Laboratory Diagnostics Co
Anonymous
Verified
  • Other industries
  • Poznan, Poland
  • 51-200 Employees
  • Online Review
  • Verified

Sii Poland implemented Microsoft Dynamics CRM for a laboratory diagnostics distributor. The team configured and customized the system, migrated data, integrated existing platforms, and set up security.

Showing 1-10 of 42 Reviews

Locations (14)

Niepodleglosci 69 Av. WarszawaPoland 02-626

1001 - 2000

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