4B Systems sp. z o.o.

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Details

Founded:
2014
Hourly Rates:
$50 - $99 / hr
Employees:
10 - 49
Ratings:
4.6 9 Reviews

Industries Served

Information Technology Pharmaceuticals & Biotechnology Real Estate Education Media & Entertainment Gaming & Gambling Legal Services Energy & Utilities

Where We Specialize

21% Mobile App Development
Mobile App Development 21%
Virtual Reality 19%
AI Development 16%
Web Development 12%
Bot Development 12%
IoT Development 11%
Android 9%

Industry Expertise

Real Estate100%

Typical Project Size

48% Small Business
30% Enterprise
22% Midmarket Business

About

4B Systems sp. z o.o. is a software development company that turns ideas into working products. 4B Systems sp. z o.o. focuses on Mobile App Development. 4B Systems sp. z o.o. employs 10 - 49 people. Projects are generally billed around $50 - $99 / hr/hr. Clients have rated 4B Systems sp. z o.o. 5.0 out of 5 in 2 reviews. The team is based in Gliwice, Poland. Overall, 4B Systems sp. z o.o. is one of the options worth shortlisting for a technology project.

4B Systems sp. z o.o. Reviews

4.6 9 Reviews
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Great Experience With 4B Systems sp. z o.o. on Our Mobile App Development Project

Divya Joshi / IT Director | Oct 01, 2026

Honestly, this was one of the smoothest projects we have run with an outside team. We dealt with the same core team throughout, so we did not have to keep re-explaining things. They took the time to understand our business before suggesting anything, which we appreciated after previous agencies jumped straight into building. They shared working builds regularly, so we could test early and give feedback before things were locked in.

We launched on schedule and have not had any major issues since. If you need a team that communicates well and delivers, they are a good choice.

Project summary

We hired 4B Systems sp. z o.o. to build iOS and Android apps for our customers, including booking, payments and push notifications. The work covered requirements, design, development, testing and launch support. Overall it was a 9-month engagement.

  • Overall Rating 4.5
  • Quality 4.0
  • Schedule 4.5
  • Project Cost 4.5
  • Willing To Refer 5.0
Project Type:
Mobile App Development
Project Cost:
$500,000+
Project Duration:
Oct 2025 - Jul 2026
Business Type:
Information Technology
Location:
Kolkata, India

Questions & Answers

Please describe your company, your role, and the industry you operate in.
Beacon Software Pvt Ltd is a Information Technology business in Kolkata, India. As IT Director, I was responsible for this project on our side and the main contact for 4B Systems sp. z o.o..
What specific problem or business challenge led you to hire this company?
We had tried to do this internally and it stalled. We needed specialists to build iOS and Android apps for our customers, including booking, payments and push notifications.
What services did the company provide for your project?
Mainly Mobile App Development. They also helped with the technical planning and a few integrations with our existing tools.
Why did you choose this company over other providers you considered?
We compared three or four agencies. 4B Systems sp. z o.o. asked the best questions and had good reviews from past clients.
How clearly did the company understand your requirements and business goals?
Better than we expected. They pointed out a few things we had not thought about.
How was your overall experience with their communication and project management?
Very responsive. We usually heard back the same day, even with the time difference.
Did the company deliver the project on time and within your expected budget?
It was delivered on time, and the final invoice matched the original estimate.
What tangible results or business impact have you seen since the project was completed?
Customer feedback has been positive, and we have seen better engagement since going live.
What did you like most about working with this company?
Their attention to detail and the quality of the final product.
Would you recommend this company to others, and would you work with them again?
Yes, I've already recommended them to a couple of people I know.

Delivered on time and stayed involved after launch

Nicole Reed / Founder | Sep 04, 2026

Overall we had a good experience working with 4B Systems sp. z o.o.. Communication was consistent. We had a weekly call, a shared Slack channel and a project board we could check at any time. They shared working builds regularly, so we could test early and give feedback before things were locked in. They took the time to understand our business before suggesting anything, which we appreciated after previous agencies jumped straight into building.

Since launch, everything has been stable and our team has adapted to it quickly. We had to follow up a few times on smaller bug fixes after launch. Happy to recommend them.

Project summary

Our company worked with 4B Systems sp. z o.o. to develop a field-staff app with offline mode that syncs back to our main system. They also took care of integrations with a couple of third-party tools we already used. The engagement ran for about 6 months.

  • Overall Rating 4.0
  • Quality 3.5
  • Schedule 4.0
  • Project Cost 3.5
  • Willing To Refer 5.0
Project Type:
Mobile App Development
Project Cost:
$10,000 to $49,999
Project Duration:
Feb 2026 - Aug 2026
Business Type:
Pharmaceuticals & Biotechnology
Location:
Tampa, USA

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I'm the Founder at Copper Leaf Pharma, a Pharmaceuticals & Biotechnology company based in Tampa, USA. I look after our technology and work closely with outside partners on bigger projects.
What specific problem or business challenge led you to hire this company?
Our team was spending too much time on manual work. The goal was to develop a field-staff app with offline mode that syncs back to our main system so they could focus on customers.
What services did the company provide for your project?
Mainly Mobile App Development. They also helped with the technical planning and a few integrations with our existing tools.
Why did you choose this company over other providers you considered?
A colleague recommended them, and our first calls confirmed they understood what we needed.
How clearly did the company understand your requirements and business goals?
They understood our goals quickly, partly because they had worked with Pharmaceuticals & Biotechnology clients before.
How was your overall experience with their communication and project management?
Communication was good overall and improved further once we settled into a routine.
Did the company deliver the project on time and within your expected budget?
Mostly. One milestone slipped by about a week, but the final delivery was on schedule and the budget held.
What tangible results or business impact have you seen since the project was completed?
Our team saves several hours a week, and we have had very few issues since launch.
What did you like most about working with this company?
How easy they were to work with. They were responsive, honest and genuinely interested in our success.
Would you recommend this company to others, and would you work with them again?
Yes, I've already recommended them to a couple of people I know.

Professional IoT Development Team, Smooth Delivery From Start to Finish

Zoe Murphy / Co-Founder & CTO | Aug 16, 2026

The project went well overall. The team asked a lot of questions early on, which felt slow at first but meant there were very few surprises later. They were upfront about what was realistic within our budget, which helped us prioritise the right features. When we changed our minds on a couple of features halfway through, they handled it without fuss and were clear about the impact on cost and timeline.

We are already seeing better numbers than before the project. There were some early misunderstandings on requirements that took a few rounds to sort out. If you need a team that communicates well and delivers, they are a good choice.

Project summary

We partnered with 4B Systems sp. z o.o. to connect our equipment to a cloud dashboard so we could monitor it remotely. They also took care of integrations with a couple of third-party tools we already used. The engagement ran for about 9 months.

  • Overall Rating 4.0
  • Quality 4.0
  • Schedule 3.5
  • Project Cost 4.0
  • Willing To Refer 5.0
Project Type:
IoT Development
Project Cost:
$10,000 to $49,999
Project Duration:
Oct 2025 - Jul 2026
Business Type:
Real Estate
Location:
Melbourne, Australia

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I work as Co-Founder & CTO at Pioneer Properties Pty Ltd. We operate in Real Estate and most of our customers are in and around Melbourne, Australia.
What specific problem or business challenge led you to hire this company?
Our existing setup was holding us back. We wanted to connect our equipment to a cloud dashboard so we could monitor it remotely before our busy season.
What services did the company provide for your project?
IoT Development, including planning, development, testing and launch support.
Why did you choose this company over other providers you considered?
A colleague recommended them, and our first calls confirmed they understood what we needed.
How clearly did the company understand your requirements and business goals?
They understood our goals quickly, partly because they had worked with Real Estate clients before.
How was your overall experience with their communication and project management?
Very responsive. We usually heard back the same day, even with the time difference.
Did the company deliver the project on time and within your expected budget?
Yes. The only extra cost came from features we added ourselves, and they quoted those fairly.
What tangible results or business impact have you seen since the project was completed?
Customer feedback has been positive, and we have seen better engagement since going live.
What did you like most about working with this company?
The consistency. Same team, same standard, from the first week to the last.
Would you recommend this company to others, and would you work with them again?
Yes. They are a reliable IoT Development partner.

Good value and a team that genuinely cares about the result

Sara Al Nuaimi / Head of Digital | Jul 16, 2026

4B Systems sp. z o.o. did an excellent job for us. They shared working builds regularly, so we could test early and give feedback before things were locked in. Even with the time zone difference, responses usually came the same day and we never felt left in the dark.

We launched on schedule and have not had any major issues since. Happy to recommend them.

Project summary

We hired 4B Systems sp. z o.o. to build firmware and a companion app for a smart device we were launching. They also took care of integrations with a couple of third-party tools we already used. Overall it was a 6-month engagement.

  • Overall Rating 5.0
  • Quality 5.0
  • Schedule 5.0
  • Project Cost 5.0
  • Willing To Refer 5.0
Project Type:
IoT Development
Project Cost:
$50,000 to $149,999
Project Duration:
Dec 2025 - Jun 2026
Business Type:
Education
Location:
Sharjah, UAE

Questions & Answers

Please describe your company, your role, and the industry you operate in.
We're a mid-sized Education company based in Sharjah, UAE. I'm the Head of Digital and I oversaw the project from start to finish.
What specific problem or business challenge led you to hire this company?
We needed to build firmware and a companion app for a smart device we were launching, and we didn't have the in-house capacity to do it ourselves.
What services did the company provide for your project?
Mainly IoT Development. They also helped with the technical planning and a few integrations with our existing tools.
Why did you choose this company over other providers you considered?
A colleague recommended them, and our first calls confirmed they understood what we needed.
How clearly did the company understand your requirements and business goals?
Better than we expected. They pointed out a few things we had not thought about.
How was your overall experience with their communication and project management?
Communication was good overall and improved further once we settled into a routine.
Did the company deliver the project on time and within your expected budget?
Mostly. One milestone slipped by about a week, but the final delivery was on schedule and the budget held.
What tangible results or business impact have you seen since the project was completed?
It is still early, but the numbers are trending in the right direction and the system has been stable.
What did you like most about working with this company?
The consistency. Same team, same standard, from the first week to the last.
Would you recommend this company to others, and would you work with them again?
Yes, I've already recommended them to a couple of people I know.

Great Experience With 4B Systems sp. z o.o. on Our AI & Machine Learning Project

Pieter Naidoo / Head of Product | Apr 25, 2026

We were very happy with how this project went. When we changed our minds on a couple of features halfway through, they handled it without fuss and were clear about the impact on cost and timeline. We dealt with the same core team throughout, so we did not have to keep re-explaining things.

We launched on schedule and have not had any major issues since. We are already discussing the next phase with them.

Project summary

We engaged 4B Systems sp. z o.o. to add an AI chatbot to our support site that answers questions from our help docs. Their team handled planning, development and QA, with our product owner signing off each milestone. The engagement ran for about 7 months.

  • Overall Rating 4.5
  • Quality 5.0
  • Schedule 4.5
  • Project Cost 4.5
  • Willing To Refer 5.0
Project Type:
AI & Machine Learning
Project Cost:
$150,000 to $499,999
Project Duration:
Aug 2025 - Mar 2026
Business Type:
Media & Entertainment
Location:
Durban, South Africa

Questions & Answers

Please describe your company, your role, and the industry you operate in.
Westbridge Pictures (Pty) Ltd is a Media & Entertainment business in Durban, South Africa. As Head of Product, I was responsible for this project on our side and the main contact for 4B Systems sp. z o.o..
What specific problem or business challenge led you to hire this company?
We needed to add an AI chatbot to our support site that answers questions from our help docs, and we didn't have the in-house capacity to do it ourselves.
What services did the company provide for your project?
End-to-end AI & Machine Learning — from requirements and design through to deployment and a support period afterwards.
Why did you choose this company over other providers you considered?
They had relevant experience in Media & Entertainment and their proposal was the clearest of the ones we received.
How clearly did the company understand your requirements and business goals?
They understood our goals quickly, partly because they had worked with Media & Entertainment clients before.
How was your overall experience with their communication and project management?
Very responsive. We usually heard back the same day, even with the time difference.
Did the company deliver the project on time and within your expected budget?
Mostly. One milestone slipped by about a week, but the final delivery was on schedule and the budget held.
What tangible results or business impact have you seen since the project was completed?
It is still early, but the numbers are trending in the right direction and the system has been stable.
What did you like most about working with this company?
Their attention to detail and the quality of the final product.
Would you recommend this company to others, and would you work with them again?
Yes. They are a reliable AI & Machine Learning partner.

Easy to work with and very transparent on timelines and cost

Kavya Nair / IT Director | Mar 25, 2026

Honestly, this was one of the smoothest projects we have run with an outside team. Communication was consistent. We had a weekly call, a shared Slack channel and a project board we could check at any time. The team asked a lot of questions early on, which felt slow at first but meant there were very few surprises later.

We launched on schedule and have not had any major issues since. We are already discussing the next phase with them.

Project summary

We engaged 4B Systems sp. z o.o. to build a customer portal where clients can log in, track orders and download invoices. The work covered requirements, design, development, testing and launch support. The engagement ran for about 5 months.

  • Overall Rating 5.0
  • Quality 5.0
  • Schedule 4.5
  • Project Cost 5.0
  • Willing To Refer 5.0
Project Type:
Web Development
Project Cost:
$50,000 to $149,999
Project Duration:
Aug 2025 - Jan 2026
Business Type:
Gaming & Gambling
Location:
Chennai, India

Questions & Answers

Please describe your company, your role, and the industry you operate in.
Lakeshore Games is a Gaming & Gambling business in Chennai, India. As IT Director, I was responsible for this project on our side and the main contact for 4B Systems sp. z o.o..
What specific problem or business challenge led you to hire this company?
We needed to build a customer portal where clients can log in, track orders and download invoices, and we didn't have the in-house capacity to do it ourselves.
What services did the company provide for your project?
Mainly Web Development. They also helped with the technical planning and a few integrations with our existing tools.
Why did you choose this company over other providers you considered?
Their pricing was fair and they were honest about timelines instead of just telling us what we wanted to hear.
How clearly did the company understand your requirements and business goals?
Well. There were a couple of points we had to clarify early on, but after that they were spot on.
How was your overall experience with their communication and project management?
Very responsive. We usually heard back the same day, even with the time difference.
Did the company deliver the project on time and within your expected budget?
Yes. The only extra cost came from features we added ourselves, and they quoted those fairly.
What tangible results or business impact have you seen since the project was completed?
Customer feedback has been positive, and we have seen better engagement since going live.
What did you like most about working with this company?
How easy they were to work with. They were responsive, honest and genuinely interested in our success.
Would you recommend this company to others, and would you work with them again?
Yes, I would recommend them and we plan to work with them again.

Great team to work with — professional, responsive and reliable

James Harding / Project Manager | Mar 12, 2026

Honestly, this was one of the smoothest projects we have run with an outside team. They took the time to understand our business before suggesting anything, which we appreciated after previous agencies jumped straight into building. Their project manager kept things organised and was quick to flag anything that might affect the timeline. They shared working builds regularly, so we could test early and give feedback before things were locked in.

Since launch, everything has been stable and our team has adapted to it quickly. We are already discussing the next phase with them.

Project summary

Our company worked with 4B Systems sp. z o.o. to automate document data extraction that our team was doing by hand. They also took care of integrations with a couple of third-party tools we already used. The engagement ran for about 6 months.

  • Overall Rating 5.0
  • Quality 5.0
  • Schedule 5.0
  • Project Cost 5.0
  • Willing To Refer 5.0
Project Type:
AI & Machine Learning
Project Cost:
$50,000 to $149,999
Project Duration:
Jul 2025 - Jan 2026
Business Type:
Legal Services
Location:
Cardiff, UK

Questions & Answers

Please describe your company, your role, and the industry you operate in.
We're a mid-sized Legal Services company based in Cardiff, UK. I'm the Project Manager and I oversaw the project from start to finish.
What specific problem or business challenge led you to hire this company?
Our team was spending too much time on manual work. The goal was to automate document data extraction that our team was doing by hand so they could focus on customers.
What services did the company provide for your project?
End-to-end AI & Machine Learning — from requirements and design through to deployment and a support period afterwards.
Why did you choose this company over other providers you considered?
We compared three or four agencies. 4B Systems sp. z o.o. asked the best questions and had good reviews from past clients.
How clearly did the company understand your requirements and business goals?
Very well. They asked a lot of questions upfront and turned our rough ideas into a clear plan.
How was your overall experience with their communication and project management?
Good. Weekly calls, regular updates and a shared board meant we always knew where things stood.
Did the company deliver the project on time and within your expected budget?
It was delivered on time, and the final invoice matched the original estimate.
What tangible results or business impact have you seen since the project was completed?
Our team saves several hours a week, and we have had very few issues since launch.
What did you like most about working with this company?
The consistency. Same team, same standard, from the first week to the last.
Would you recommend this company to others, and would you work with them again?
Yes, I've already recommended them to a couple of people I know.

They listened, asked the right questions, and delivered

Emma Sandhu / Senior Engineering Manager | Feb 08, 2026

4B Systems sp. z o.o. did an excellent job for us. We dealt with the same core team throughout, so we did not have to keep re-explaining things. They took the time to understand our business before suggesting anything, which we appreciated after previous agencies jumped straight into building.

We launched on schedule and have not had any major issues since. If you need a team that communicates well and delivers, they are a good choice.

Project summary

We partnered with 4B Systems sp. z o.o. to build a demand forecasting model on top of our sales data. Their team handled planning, development and QA, with our product owner signing off each milestone. The engagement ran for about 3 months.

  • Overall Rating 4.5
  • Quality 4.5
  • Schedule 4.5
  • Project Cost 4.0
  • Willing To Refer 5.0
Project Type:
AI & Machine Learning
Project Cost:
$500,000+
Project Duration:
Oct 2025 - Jan 2026
Business Type:
Energy & Utilities
Location:
Edmonton, Canada

Questions & Answers

Please describe your company, your role, and the industry you operate in.
Lumen Utilities Inc is a Energy & Utilities business in Edmonton, Canada. As Senior Engineering Manager, I was responsible for this project on our side and the main contact for 4B Systems sp. z o.o..
What specific problem or business challenge led you to hire this company?
We had tried to do this internally and it stalled. We needed specialists to build a demand forecasting model on top of our sales data.
What services did the company provide for your project?
AI & Machine Learning, plus QA and some consulting on how to structure the project.
Why did you choose this company over other providers you considered?
A colleague recommended them, and our first calls confirmed they understood what we needed.
How clearly did the company understand your requirements and business goals?
Better than we expected. They pointed out a few things we had not thought about.
How was your overall experience with their communication and project management?
Organised and transparent. Their project manager kept the project on track and flagged risks early.
Did the company deliver the project on time and within your expected budget?
Yes, on time and within budget.
What tangible results or business impact have you seen since the project was completed?
Customer feedback has been positive, and we have seen better engagement since going live.
What did you like most about working with this company?
That they were proactive — they suggested improvements instead of just doing what was asked.
Would you recommend this company to others, and would you work with them again?
Yes, I would recommend them and we plan to work with them again.

Skilled IoT Development Team That Understood Our Business

Olivia Nguyen / Director | Jan 05, 2026

We were very happy with how this project went. Their project manager kept things organised and was quick to flag anything that might affect the timeline. They took the time to understand our business before suggesting anything, which we appreciated after previous agencies jumped straight into building. Communication was consistent. We had a weekly call, a shared Slack channel and a project board we could check at any time.

We are already seeing better numbers than before the project. If you need a team that communicates well and delivers, they are a good choice.

Project summary

We partnered with 4B Systems sp. z o.o. to build firmware and a companion app for a smart device we were launching. The project was split into milestones, with a working build shared at the end of each one. We worked together for around 5 months.

  • Overall Rating 4.5
  • Quality 5.0
  • Schedule 4.5
  • Project Cost 5.0
  • Willing To Refer 5.0
Project Type:
IoT Development
Project Cost:
$150,000 to $499,999
Project Duration:
Jun 2025 - Nov 2025
Business Type:
Pharmaceuticals & Biotechnology
Location:
Adelaide, Australia

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I'm the Director at Redwood Life Sciences, a Pharmaceuticals & Biotechnology company based in Adelaide, Australia. I look after our technology and work closely with outside partners on bigger projects.
What specific problem or business challenge led you to hire this company?
We needed to build firmware and a companion app for a smart device we were launching, and we didn't have the in-house capacity to do it ourselves.
What services did the company provide for your project?
End-to-end IoT Development — from requirements and design through to deployment and a support period afterwards.
Why did you choose this company over other providers you considered?
Their pricing was fair and they were honest about timelines instead of just telling us what we wanted to hear.
How clearly did the company understand your requirements and business goals?
Very well. They asked a lot of questions upfront and turned our rough ideas into a clear plan.
How was your overall experience with their communication and project management?
Organised and transparent. Their project manager kept the project on track and flagged risks early.
Did the company deliver the project on time and within your expected budget?
Yes, on time and within budget.
What tangible results or business impact have you seen since the project was completed?
Customer feedback has been positive, and we have seen better engagement since going live.
What did you like most about working with this company?
How easy they were to work with. They were responsive, honest and genuinely interested in our success.
Would you recommend this company to others, and would you work with them again?
Yes, I've already recommended them to a couple of people I know.
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