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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 offering good value for cost, with many clients highlighting their competitive pricing and high-quality deliverables. Engagements typically involve 2-10 team members per project, and they demonstrate flexibility and responsiveness, consistently meeting deadlines and aligning with client 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

  • High-Quality Deliverables

    Sii Poland consistently delivers high-quality work that meets or exceeds client expectations. Their attention to detail and commitment to excellence result in successful project outcomes and satisfied clients.

  • Room for Improvement in Initiative and Feedback

    While generally satisfied, some clients suggest Sii Poland could improve by taking more initiative in suggesting application improvements and providing more frequent progress reviews to accelerate decision-making.

  • Collaborative and Client-Focused Approach

    Clients appreciate Sii Poland's collaborative approach and dedication to understanding business goals. Their client-focused mindset ensures that solutions are tailored to meet specific needs, fostering strong partnerships.

  • Successful Integration and Automation Projects

    Sii Poland successfully delivers integration and automation projects, helping clients streamline operations, reduce manual workloads, and achieve significant time savings.

  • Impressive Talent Pool and Recruitment

    Sii Poland stands out for their ability to attract top professionals and quickly fill roles with high-caliber candidates. Their broad talent pool allows them to meet diverse client needs effectively.

  • Continuous Improvement and Growth

    Clients note that Sii Poland is open to continuous improvement and adapts well to feedback, demonstrating a commitment to evolving and strengthening future collaborations.

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

Contact Sii Poland

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Amcor

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Aptiv

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Danone

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Displate

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FRoSTA

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Gadre Infotech Pvt. Ltd.

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Infront

(1)
Infront Logotype

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Ingenico

(1)
Ingenico Logotype

Eric de Taevernier

Omnilogy

(1)
Omnilogy Logotype

Tomasz Plonski

Sii Poland

(1)
Sii Poland Logotype

Szymon Wróblak

Teatr Muzyczny w Gdyni

(1)
Teatr Muzyczny w Gdyni Logotype

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The City of Reykjavik

(1)
The City of Reykjavik Logotype

Halldor Gislason

Trapeze Group

(1)
Trapeze Group Logotype

Harinder Singh Bora

Tricentis

(1)
Tricentis Logotype

Michael Weiss

WSA – Wonderful Sound for All

(1)
WSA – Wonderful Sound for All Logotype

Saket arora

Additional Connections

(10)