Radioactive Rat Sp z o.o.

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Details

Founded:
2019
Hourly Rates:
Undisclosed
Employees:
10 - 49
Ratings:
4.3 9 Reviews

Industries Served

Pharmaceuticals & Biotechnology Human Resources Education Financial Services Gaming & Gambling Nonprofit & NGO Telecommunications Automotive

Where We Specialize

20% Testing Services
Testing Services 20%
Regression 18%
Ipad 17%
AI Development 14%
Mobile App Development 10%
Ecommerce 9%
Bot Development 7%
Web Development 5%

Industry Expertise

Hospitality56% Automotive31% Travel13%

Typical Project Size

79% Small Business
13% Enterprise
8% Midmarket Business

About

Radioactive Rat Sp z o.o. is a technology company founded in 2019. Radioactive Rat Sp z o.o. focuses on Web Development and Mobile App Development. With 10 - 49 people on staff, Radioactive Rat Sp z o.o. can take on projects of varying size. The team is based in Warszawa, Poland. This profile is a starting point — reach out to Radioactive Rat Sp z o.o. directly to discuss project specifics.

Radioactive Rat Sp z o.o. Reviews

4.3 9 Reviews
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A reliable long-term partner for our tech needs

Ruby Ngata / Founder | Oct 18, 2026

The project went well overall. Their project manager kept things organised and was quick to flag anything that might affect the timeline. They were upfront about what was realistic within our budget, which helped us prioritise the right features. 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. Estimates on a few features were optimistic and those took longer than planned. Overall, a team we trust and plan to keep working with.

Project summary

We partnered with Radioactive Rat Sp z o.o. to automate document data extraction that our team was doing by hand. The work covered requirements, design, development, testing and launch support. Overall it was a 4-month engagement.

  • Overall Rating 4.0
  • Quality 4.0
  • Schedule 4.0
  • Project Cost 4.0
  • Willing To Refer 5.0
Project Type:
AI & Machine Learning
Project Cost:
Less than $10,000
Project Duration:
May 2026 - Sep 2026
Business Type:
Pharmaceuticals & Biotechnology
Location:
Auckland, New Zealand

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I'm the Founder at Harborview Life Sciences, a Pharmaceuticals & Biotechnology company based in Auckland, New Zealand. 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 existing setup was holding us back. We wanted to automate document data extraction that our team was doing by hand before our busy season.
What services did the company provide for your project?
Mainly AI & Machine Learning. 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?
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. 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?
Definitely. We have already started talking about the next phase.

They listened, asked the right questions, and delivered

Hannah Turner / Founder | Aug 25, 2026

Radioactive Rat Sp z o.o. did good work for us, and we would use them again. The developers were knowledgeable and made a few suggestions that ended up saving us time and money. They took the time to understand our business before suggesting anything, which we appreciated after previous agencies jumped straight into building. The team asked a lot of questions early on, which felt slow at first but meant there were very few surprises later.

Since launch, everything has been stable and our team has adapted to it quickly. There were some early misunderstandings on requirements that took a few rounds to sort out. We are already discussing the next phase with them.

Project summary

We hired Radioactive Rat Sp z o.o. to rebuild our existing mobile app, which had poor reviews and frequent crashes. They worked alongside our in-house team, which mostly handled business requirements and testing. We worked together for around 2 months.

  • Overall Rating 4.0
  • Quality 4.0
  • Schedule 4.5
  • Project Cost 4.0
  • Willing To Refer 5.0
Project Type:
Mobile App Development
Project Cost:
Less than $10,000
Project Duration:
May 2026 - Jul 2026
Business Type:
Human Resources
Location:
Birmingham, UK

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I work as Founder at Evergreen Staffing Ltd. We operate in Human Resources and most of our customers are in and around Birmingham, UK.
What specific problem or business challenge led you to hire this company?
We needed to rebuild our existing mobile app, which had poor reviews and frequent crashes, 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 Mobile App 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?
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. 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?
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. They are a reliable Mobile App Development partner.

Solid delivery, though timelines needed some pushing

Ethan Thompson / Director | Aug 21, 2026

We got a good result in the end, but the road there had a few bumps. We dealt with the same core team throughout, so we did not have to keep re-explaining things. The developers were knowledgeable and made a few suggestions that ended up saving us time and money.

Since launch, everything has been stable and our team has adapted to it quickly. A couple of milestones slipped by a week or so, mostly around testing. Happy to recommend them.

Project summary

Radioactive Rat Sp z o.o. was brought in to add an AI chatbot to our support site that answers questions from our help docs. The work covered requirements, design, development, testing and launch support. The project took roughly 6 months from kickoff to launch.

  • Overall Rating 3.5
  • Quality 3.5
  • Schedule 3.5
  • Project Cost 3.5
  • Willing To Refer 5.0
Project Type:
AI & Machine Learning
Project Cost:
$10,000 to $49,999
Project Duration:
Jan 2026 - Jul 2026
Business Type:
Education
Location:
Waterloo, Canada

Questions & Answers

Please describe your company, your role, and the industry you operate in.
We're a mid-sized Education company based in Waterloo, Canada. I'm the Director and I oversaw the project from start to finish.
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 add an AI chatbot to our support site that answers questions from our help docs.
What services did the company provide for your project?
AI & Machine Learning, including planning, development, testing and launch support.
Why did you choose this company over other providers you considered?
They had relevant experience in Education and their proposal was the clearest of the ones we received.
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?
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, on time and within budget.
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?
Definitely. We have already started talking about the next phase.

Great team to work with — professional, responsive and reliable

Dan Sullivan / Founder | Jul 24, 2026

Radioactive Rat Sp z o.o. did good work for us, and we would use them again. Communication was consistent. We had a weekly call, a shared Slack channel and a project board we could check at any time. 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. They were upfront about what was realistic within our budget, which helped us prioritise the right features.

The result looks great and performs well, and our internal team found it easy to take over. Documentation at handover was a bit thin and we had to ask for more detail.

We are already discussing the next phase with them.

Project summary

We partnered with Radioactive Rat Sp z o.o. to take over manual and regression testing before each release. The work covered requirements, design, development, testing and launch support. The engagement ran for about 7 months.

  • Overall Rating 4.0
  • Quality 4.0
  • Schedule 4.0
  • Project Cost 4.0
  • Willing To Refer 5.0
Project Type:
Quality Assurance & Testing
Project Cost:
Less than $10,000
Project Duration:
Nov 2025 - Jun 2026
Business Type:
Financial Services
Location:
Portland, USA

Questions & Answers

Please describe your company, your role, and the industry you operate in.
Silverline Lending is a Financial Services business in Portland, USA. As Founder, I was responsible for this project on our side and the main contact for Radioactive Rat Sp z o.o..
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 take over manual and regression testing before each release so they could focus on customers.
What services did the company provide for your project?
Quality Assurance & Testing, 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?
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?
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?
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. They are a reliable Quality Assurance & Testing partner.

Dependable Mobile App Development Partner for a Growing Gaming & Gambling Business

Daan Jansen / Head of Digital Transformation | Jul 18, 2026

Our experience with Radioactive Rat Sp z o.o. was really positive from start to finish. Communication was consistent. We had a weekly call, a shared Slack channel and a project board we could check at any time. We dealt with the same core team throughout, so we did not have to keep re-explaining things.

Since launch, everything has been stable and our team has adapted to it quickly. If you need a team that communicates well and delivers, they are a good choice.

Project summary

We hired Radioactive Rat Sp z o.o. to rebuild our existing mobile app, which had poor reviews and frequent crashes. They also took care of integrations with a couple of third-party tools we already used. We worked together for around 4 months.

  • Overall Rating 4.5
  • Quality 4.5
  • Schedule 5.0
  • Project Cost 4.0
  • Willing To Refer 5.0
Project Type:
Mobile App Development
Project Cost:
$50,000 to $149,999
Project Duration:
Feb 2026 - Jun 2026
Business Type:
Gaming & Gambling
Location:
Rotterdam, Netherlands

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I'm the Head of Digital Transformation at Ironwood Interactive BV, a Gaming & Gambling company based in Rotterdam, Netherlands. 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 rebuild our existing mobile app, which had poor reviews and frequent crashes, and we didn't have the in-house capacity to do it ourselves.
What services did the company provide for your project?
Mobile App Development, including planning, development, testing and launch support.
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?
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?
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?
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've already recommended them to a couple of people I know.

Strong Technical Skills and a Very Responsive Web Development Team

Jonas Richter / Co-Founder | May 21, 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. The team asked a lot of questions early on, which felt slow at first but meant there were very few surprises later. 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.

The result looks great and performs well, and our internal team found it easy to take over. We are already discussing the next phase with them.

Project summary

Radioactive Rat Sp z o.o. was brought in to rebuild a slow, outdated web app and move it to a new framework. Their team handled planning, development and QA, with our product owner signing off each milestone. The project took roughly 3 months from kickoff to launch.

  • Overall Rating 4.5
  • Quality 4.5
  • Schedule 4.5
  • Project Cost 4.5
  • Willing To Refer 5.0
Project Type:
Web Development
Project Cost:
$10,000 to $49,999
Project Duration:
Jan 2026 - Apr 2026
Business Type:
Nonprofit & NGO
Location:
Frankfurt, Germany

Questions & Answers

Please describe your company, your role, and the industry you operate in.
Riverbend Community Network GmbH is a Nonprofit & NGO business in Frankfurt, Germany. As Co-Founder, I was responsible for this project on our side and the main contact for Radioactive Rat 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 rebuild a slow, outdated web app and move it to a new framework.
What services did the company provide for your project?
Web 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?
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?
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?
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, I've already recommended them to a couple of people I know.

Solid Mobile App Development Work With Clear Communication Throughout

Fatima Qureshi / Director | Apr 22, 2026

I would rate this engagement highly on almost every front. 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. Even with the time zone difference, responses usually came the same day and we never felt left in the dark. They were upfront about what was realistic within our budget, which helped us prioritise the right features.

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 engaged Radioactive Rat Sp z o.o. to build iOS and Android apps for our customers, including booking, payments and push notifications. Scope included discovery workshops, development in two-week sprints and a short support period after launch. The engagement ran for about 4 months.

  • Overall Rating 4.5
  • Quality 5.0
  • Schedule 4.5
  • Project Cost 4.5
  • Willing To Refer 5.0
Project Type:
Mobile App Development
Project Cost:
$10,000 to $49,999
Project Duration:
Nov 2025 - Mar 2026
Business Type:
Telecommunications
Location:
Dubai, UAE

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I'm the Director at Copper Leaf Communications, a Telecommunications company based in Dubai, UAE. 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 build iOS and Android apps for our customers, including booking, payments and push notifications so they could focus on customers.
What services did the company provide for your project?
Mobile App Development, plus QA and some consulting on how to structure the project.
Why did you choose this company over other providers you considered?
We compared three or four agencies. Radioactive Rat 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?
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?
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?
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.

Exceeded our expectations on quality and communication

Emily Lloyd / Chief Digital Officer | Mar 31, 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. Even with the time zone difference, responses usually came the same day and we never felt left in the dark.

Since launch, everything has been stable and our team has adapted to it quickly. If you need a team that communicates well and delivers, they are a good choice.

Project summary

We partnered with Radioactive Rat Sp z o.o. to automate document data extraction that our team was doing by hand. Scope included discovery workshops, development in two-week sprints and a short support period after launch. Overall it was a 9-month engagement.

  • Overall Rating 5.0
  • Quality 5.0
  • Schedule 4.5
  • Project Cost 5.0
  • Willing To Refer 5.0
Project Type:
AI & Machine Learning
Project Cost:
$500,000+
Project Duration:
Apr 2025 - Jan 2026
Business Type:
Human Resources
Location:
Reading, UK

Questions & Answers

Please describe your company, your role, and the industry you operate in.
We're a mid-sized Human Resources company based in Reading, UK. I'm the Chief Digital Officer and I oversaw the project from start to finish.
What specific problem or business challenge led you to hire this company?
Our existing setup was holding us back. We wanted to automate document data extraction that our team was doing by hand before our busy season.
What services did the company provide for your project?
Mainly AI & Machine Learning. 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?
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?
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?
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?
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.

Great Experience With Radioactive Rat Sp z o.o. on Our Mobile App Development Project

Stephanie Wallace / IT Manager | Jan 27, 2026

Honestly, this was one of the smoothest projects we have run with an outside team. They were upfront about what was realistic within our budget, which helped us prioritise the right features. The team asked a lot of questions early on, which felt slow at first but meant there were very few surprises later. They shared working builds regularly, so we could test early and give feedback before things were locked in.

The Mobile App Development work has already made a noticeable difference — tasks that used to take hours now take minutes. If you need a team that communicates well and delivers, they are a good choice.

Project summary

We hired Radioactive Rat Sp z o.o. to rebuild our existing mobile app, which had poor reviews and frequent crashes. Scope included discovery workshops, development in two-week sprints and a short support period after launch. We worked together for around 4 months.

  • Overall Rating 4.5
  • Quality 4.5
  • Schedule 4.5
  • Project Cost 4.5
  • Willing To Refer 5.0
Project Type:
Mobile App Development
Project Cost:
$50,000 to $149,999
Project Duration:
Sep 2025 - Jan 2026
Business Type:
Automotive
Location:
Chicago, USA

Questions & Answers

Please describe your company, your role, and the industry you operate in.
We're a mid-sized Automotive company based in Chicago, USA. I'm the IT Manager and I oversaw the project from start to finish.
What specific problem or business challenge led you to hire this company?
Our existing setup was holding us back. We wanted to rebuild our existing mobile app, which had poor reviews and frequent crashes before our busy season.
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 Automotive clients before.
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?
Yes, on time and within budget.
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?
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've already recommended them to a couple of people I know.
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