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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

  • 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.

  • 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.

  • Effective Project Management

    Clients praise Sii Poland's project management skills, noting their ability to deliver projects on time and within budget. Their communication is clear and proactive, ensuring smooth collaboration and timely updates throughout the project lifecycle.

  • Strong Technical Expertise Across Projects

    Sii Poland consistently demonstrates strong technical expertise across various projects, including custom software development, data analytics, and IT infrastructure. Clients appreciate their ability to handle complex technical tasks and deliver high-quality solutions.

  • 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.

  • Positive Feedback on CRM and Data Solutions

    Sii Poland receives positive feedback for their CRM and data solutions, with clients reporting improved business processes, increased user adoption, and enhanced data accuracy and reporting capabilities.

Sii Poland Reviews

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Services
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Application Testing for Railway Solutions Company

  • Application Testing
  • Manual Testing
  • Confidential
  • Jan. 2014 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"Everything is fine."

Oct 2, 2025
Team Leader, Railway Solutions Company
Grzegorz Zeman
  • Other industries
  • Poland
  • 10,001+ Employees
  • Online Review

Sii Poland provides app testing services for a railway solutions company. The team conducts manual and automated testing for railway projects.

E-Commerce Dev for Musical Theater

  • Application Management & Support Custom Software Development E-Commerce Development
  • Other frameworks and CMS
  • Less than $10,000
  • July - Oct. 2024
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"Their assistance was comprehensive and of high quality."

Oct 1, 2025
Marketing Manager, Teatr Muzyczny w Gdyni
Mateusz Gigiewicz
  • Arts, entertainment & music
  • Gdynia, Poland
  • 201-500 Employees
  • Online Review

Sii Poland developed a Shopify e-commerce site for a musical theater. The team created the store from scratch, entered product and content data, integrated payment and shipment modules, and implemented SEO.

Atlassian Products Setup & Maintennce for R&D Company

  • IT Managed Services
  • Managed Software Application & Solutions Other IT managed services
  • Confidential
  • Jan. 2024 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"We've had zero issues with the Atlassian support."

Sep 30, 2025
Procurement Manager, R&D Company
Oleksii
Verified
  • Other industries
  • Ukraine
  • 501-1,000 Employees
  • Online Review
  • Verified

Sii Poland has been hired by an R&D company to set up and maintain Atlassian products. The goal is to provide support for Atlassian products.

Custom Software Development for Scientific Research Company

  • Web Development
  • Google app engine
  • Confidential
  • Apr. - June 2025
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"It impressed us that they were so helpful, responsive, and knowledgeable."

Sep 30, 2025
Technical Director, aMuze Interactive
Christer Granberg
Verified
  • Other industries
  • Stockholm, Sweden
  • 1-10 Employees
  • Online Review
  • Verified

Sii Poland developed a reporting platform for a scientific research company. The team used Google Analytics, Google Tag Manager, and Looker Studio to build the platform.

IT Consulting & SI for Frozen Food Manufacturer

  • Cloud Consulting & SI ERP Consulting and SI Other IT Consulting and SI
  • SAP ERP Consulting & Implementation
  • $50,000 to $199,999
  • Jan. 2021 - Sep. 2025
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"Their good contact, flexibility, responsiveness, and valuable consultants impressed us."

Sep 29, 2025
IT Manager, FRoSTA
Przemyslaw Jezierski
Verified
  • Other industries
  • Bydgoszcz, Poland
  • 1,001-5,000 Employees
  • Online Review
  • Verified

Sii Poland provided SAP S/4HANA support and system development services for a frozen food manufacturer. The team also provided IT infrastructure field services and support for S/4HANA upgrades.

IT Staff Augmentation for Industrial Automation Company

  • Computer Engineering IT Staff Augmentation
  • Confidential
  • Jan. 2023 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
4.5
Willing to Refer
5.0

"Everything is ok."

Sep 29, 2025
Department Manager, Rockwell Automation Sp. z o.o.
Anonymous
Verified
  • Other industries
  • Katowice, Poland
  • 1,001-5,000 Employees
  • Online Review
  • Verified

Sii Poland provides IT staff augmentation services for an industrial automation company. The team has been tasked with providing development work and architectural support.

Engineering QA & Testing for Enterprise Software Vendor

  • Application Testing Digital Engineering
  • Performance Testing
  • Confidential
  • Jan. 2016 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"They had exceptional skills."

Sep 22, 2025
Alliance Director, Tricentis
Michael Weiss
Verified
  • Other industries
  • Zuerich, Switzerland
  • 1,001-5,000 Employees
  • Online Review
  • Verified

Sii Poland provides software quality engineering services to an enterprise software vendor. The team handles testing consulting, QA, performance testing, and other related tasks.

End-User IT Support Services for Banking Company

  • Computer Engineering IT Managed Services IT Staff Augmentation
  • Help desk Other IT managed services
  • Confidential
  • May 2022 - May 2029
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"Their professionalism and flexible approach toward our needs are impressive."

Sep 22, 2025
IT, Banking Company
Anonymous
  • Banks
  • Poland
  • 501-1,000 Employees
  • Online Review

Sii Poland provides IT support for a banking company. The team provides technical support and maintenance for end-user devices. They handle all aspects of ensuring smooth break/fix and IMAC cases.

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.

Showing 31-40 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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Aptiv Logotype

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Danone

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Danone Logotype

Patryk Hyla

Diagnostyka.pl

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Diagnostyka.pl Logotype

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Displate

(1)
Displate Logotype

Wojciech Wiktorowicz

FRoSTA

(1)
FRoSTA Logotype

Przemyslaw Jezierski

Gadre Infotech Pvt. Ltd.

(1)
Gadre Infotech Pvt. Ltd. Logotype

Shalaka Teli

Infront

(1)
Infront Logotype

Elise Stasiuk

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

Mateusz Gigiewicz

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

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