CLUSTER ONE GmbH

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Details

Founded:: 2011
Hourly Rates:: Undisclosed
Employees:: 2 - 9
Ratings:: 4.4 8 Reviews

Industries Served

Human Resources Automotive Food & Beverage Retail & E-commerce Legal Services Pharmaceuticals & Biotechnology Advertising & Marketing Financial Services

Where We Specialize

15% Hybrid

Hybrid 15%

Software Development 13%

No Code/ Low Code 12%

Blockchain Development 11%

AI Development 11%

Smart Contract 11%

Metaverse Development 8%

Appian 7%

Mobile App Development 6%

E-commerce Development 4%

Bot Development 2%

Industry Expertise

Logistics100%

Typical Project Size

53% Small Business

29% Enterprise

18% Midmarket Business

About

CLUSTER ONE GmbH is a software development company that turns ideas into working products. Their core services include Mobile App Development. With 2 - 9 people on staff, CLUSTER ONE GmbH can take on projects of varying size. CLUSTER ONE GmbH operates out of Mönchengladbach, Germany. These details offer a useful starting point when evaluating CLUSTER ONE GmbH.

CLUSTER ONE GmbH Reviews

4.4 8 Reviews

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Strong Technical Skills and a Very Responsive AI & Machine Learning Team

Raj Roy / Director | Oct 01, 2026

CLUSTER ONE GmbH did an excellent job for us. The developers were knowledgeable and made a few suggestions that ended up saving us time and money. 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 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 CLUSTER ONE GmbH 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 7 months.

Overall Rating 4.5
Quality 4.5
Schedule 4.0
Project Cost 5.0
Willing To Refer 5.0

Project Type:: AI & Machine Learning
Project Cost:: Less than $10,000
Project Duration:: Feb 2026 - Sep 2026
Business Type:: Human Resources
Location:: Montreal, Canada

Questions & Answers

Please describe your company, your role, and the industry you operate in.

We're a mid-sized Human Resources company based in Montreal, 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?

Our team was spending too much time on manual work. The goal was to build a demand forecasting model on top of our sales data 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?

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?

They understood our goals quickly, partly because they had worked with Human Resources 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?

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?

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.

Easy to work with and very transparent on timelines and cost

Maria Brooks / Senior Product Manager | Aug 09, 2026

CLUSTER ONE GmbH did good work for us, and we would use them again. 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.

Since launch, everything has been stable and our team has adapted to it quickly. Estimates on a few features were optimistic and those took longer than planned. Happy to recommend them.

Project summary

We hired CLUSTER ONE GmbH to build internal tools on a low-code platform so our team could stop relying on spreadsheets. They also took care of integrations with a couple of third-party tools we already used. Overall it was a 9-month engagement.

Overall Rating 4.0
Quality 4.0
Schedule 4.5
Project Cost 4.5
Willing To Refer 5.0

Project Type:: Low-Code / No-Code Development
Project Cost:: $500,000+
Project Duration:: Sep 2025 - Jun 2026
Business Type:: Automotive
Location:: Nashville, USA

Questions & Answers

Please describe your company, your role, and the industry you operate in.

Beacon Motors is a Automotive business in Nashville, USA. As Senior Product Manager, I was responsible for this project on our side and the main contact for CLUSTER ONE GmbH.

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 internal tools on a low-code platform so our team could stop relying on spreadsheets so they could focus on customers.

What services did the company provide for your project?

Low-Code / No-Code Development, 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?

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?

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?

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.

Exceeded our expectations on quality and communication

Vikram Agarwal / VP of Engineering | Jun 27, 2026

We were very happy with how this project went. We dealt with the same core team throughout, so we did not have to keep re-explaining things. 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 launched on schedule and have not had any major issues since.

Overall, a team we trust and plan to keep working with.

Project summary

We partnered with CLUSTER ONE GmbH to develop a VR training module for new staff. Scope included discovery workshops, development in two-week sprints and a short support period after launch. We worked together for around 3 months.

Overall Rating 4.5
Quality 4.5
Schedule 4.5
Project Cost 4.0
Willing To Refer 5.0

Project Type:: AR/VR Development
Project Cost:: $50,000 to $149,999
Project Duration:: Mar 2026 - Jun 2026
Business Type:: Food & Beverage
Location:: Ahmedabad, India

Questions & Answers

Please describe your company, your role, and the industry you operate in.

Harborview Foods Pvt Ltd is a Food & Beverage business in Ahmedabad, India. As VP of Engineering, I was responsible for this project on our side and the main contact for CLUSTER ONE GmbH.

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 VR training module for new staff so they could focus on customers.

What services did the company provide for your project?

Mainly AR/VR 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 Food & Beverage 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?

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.

Solid E-commerce Development Work With Clear Communication Throughout

Harsh Verma / Managing Director | Jun 26, 2026

CLUSTER ONE GmbH did an excellent job for us. They shared working builds regularly, so we could test early and give feedback before things were locked in. The developers were knowledgeable and made a few suggestions that ended up saving us time and money.

Feedback from our customers has been very positive so far. Overall, a team we trust and plan to keep working with.

Project summary

We partnered with CLUSTER ONE GmbH to add subscriptions and a better checkout to our existing store. They worked alongside our in-house team, which mostly handled business requirements and testing. The project took roughly 8 months from kickoff to launch.

Overall Rating 5.0
Quality 5.0
Schedule 5.0
Project Cost 5.0
Willing To Refer 5.0

Project Type:: E-commerce Development
Project Cost:: $50,000 to $149,999
Project Duration:: Aug 2025 - Apr 2026
Business Type:: Retail & E-commerce
Location:: Mumbai, India

Questions & Answers

Please describe your company, your role, and the industry you operate in.

I'm the Managing Director at Beacon Store, a Retail & E-commerce company based in Mumbai, India. 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 had tried to do this internally and it stalled. We needed specialists to add subscriptions and a better checkout to our existing store.

What services did the company provide for your project?

Mainly E-commerce 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?

They had relevant experience in Retail & E-commerce and their proposal was the clearest of the ones we received.

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, 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?

Definitely. We have already started talking about the next phase.

Would happily work with them again

Naledi Botha / Co-Founder & CTO | Jun 18, 2026

The project went well overall. Even with the time zone difference, responses usually came the same day and we never felt left in the dark. 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.

Since launch, everything has been stable and our team has adapted to it quickly. Their team changed one developer midway, which slowed things down for a couple of weeks.

I would recommend CLUSTER ONE GmbH to anyone looking for a dependable Mobile App Development partner.

Project summary

CLUSTER ONE GmbH was brought in to build iOS and Android apps for our customers, including booking, payments and push notifications. The project was split into milestones, with a working build shared at the end of each one. Overall it was a 3-month engagement.

Overall Rating 4.0
Quality 4.0
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 - May 2026
Business Type:: Legal Services
Location:: Johannesburg, South Africa

Questions & Answers

Please describe your company, your role, and the industry you operate in.

I work as Co-Founder & CTO at Greenfield Law Group (Pty) Ltd. We operate in Legal Services and most of our customers are in and around Johannesburg, South Africa.

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?

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 Legal Services 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?

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.

Honest advice and solid execution

Hannah Walker / Co-Founder | Apr 07, 2026

CLUSTER ONE GmbH did an excellent job for us. We dealt with the same core team throughout, so we did not have to keep re-explaining things. The team asked a lot of questions early on, which felt slow at first but meant there were very few surprises later. The developers were knowledgeable and made a few suggestions that ended up saving us time and money.

The result looks great and performs well, and our internal team found it easy to take over. If you need a team that communicates well and delivers, they are a good choice.

Project summary

We partnered with CLUSTER ONE GmbH to build an AR product viewer so customers can preview items in their own space. Scope included discovery workshops, development in two-week sprints and a short support period after launch. The project took roughly 7 months from kickoff to launch.

Overall Rating 4.5
Quality 5.0
Schedule 5.0
Project Cost 4.5
Willing To Refer 5.0

Project Type:: AR/VR Development
Project Cost:: $10,000 to $49,999
Project Duration:: Aug 2025 - Mar 2026
Business Type:: Pharmaceuticals & Biotechnology
Location:: Cambridge, UK

Questions & Answers

Please describe your company, your role, and the industry you operate in.

I'm the Co-Founder at Summit Life Sciences Ltd, a Pharmaceuticals & Biotechnology company based in Cambridge, UK. 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 an AR product viewer so customers can preview items in their own space, and we didn't have the in-house capacity to do it ourselves.

What services did the company provide for your project?

AR/VR Development, including planning, development, testing and launch support.