ESR Labs

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Details

Founded:
2012
Hourly Rates:
Undisclosed
Employees:
10 - 49
Ratings:
4.8 10 Reviews

Industries Served

Energy & Utilities Legal Services Sports & Fitness Financial Services Real Estate Fashion & Apparel Travel & Hospitality Healthcare

Where We Specialize

33% AI Development
AI Development 33%
Web Development 26%
Mobile App Development 14%
Web Design 11%
Bot Development 10%
Productivity 6%

Industry Expertise

Manufacturing44% Healthcare22% Fitness22% Sports12%

Typical Project Size

53% Midmarket Business
33% Small Business
14% Enterprise

About

ESR Labs is a software development company that turns ideas into working products. The company's main offerings are Custom Software Development. With 10 - 49 people on staff, ESR Labs can take on projects of varying size. The team is based in München, Germany. This gives a quick snapshot of what to expect when working with ESR Labs.

ESR Labs Reviews

4.8 10 Reviews
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Strong Technical Skills and a Very Responsive Web Development Team

Meera Joshi / Chief Digital Officer | Aug 04, 2026

ESR Labs did an excellent job for us. 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. We would definitely work with them again.

Project summary

We engaged ESR Labs to build a customer portal where clients can log in, track orders and download invoices. Scope included discovery workshops, development in two-week sprints and a short support period after launch. Overall it was a 6-month engagement.

  • Overall Rating 5.0
  • Quality 5.0
  • Schedule 5.0
  • Project Cost 4.5
  • Willing To Refer 5.0
Project Type:
Web Development
Project Cost:
$500,000+
Project Duration:
Dec 2025 - Jun 2026
Business Type:
Energy & Utilities
Location:
Mumbai, India

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I'm the Chief Digital Officer at Riverbend Power, a Energy & Utilities 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 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?
Web 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. ESR Labs 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?
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 UI/UX Design Team

Olivia Nguyen / IT Director | Jun 18, 2026

I would rate this engagement highly on almost every front. 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 UI/UX Design work has already made a noticeable difference — tasks that used to take hours now take minutes. Overall, a team we trust and plan to keep working with.

Project summary

ESR Labs was brought in to redesign the user experience of our SaaS product. The work covered requirements, design, development, testing and launch support. The project took roughly 8 months from kickoff to launch.

  • Overall Rating 4.5
  • Quality 4.5
  • Schedule 4.5
  • Project Cost 5.0
  • Willing To Refer 5.0
Project Type:
UI/UX Design
Project Cost:
$50,000 to $149,999
Project Duration:
Oct 2025 - May 2026
Business Type:
Legal Services
Location:
Melbourne, Australia

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I work as IT Director at Lakeshore Law Group Pty Ltd. We operate in Legal Services and most of our customers are in and around Melbourne, Australia.
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 redesign the user experience of our SaaS product.
What services did the company provide for your project?
End-to-end UI/UX Design — 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?
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?
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?
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.

They listened, asked the right questions, and delivered

Nathan O'Brien / Chief Digital Officer | Jun 02, 2026

I would rate this engagement highly on almost every front. 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. They were upfront about what was realistic within our budget, which helped us prioritise the right features.

We are already seeing better numbers than before the project. I would recommend ESR Labs to anyone looking for a dependable Web Development partner.

Project summary

We partnered with ESR Labs to rebuild a slow, outdated web app and move it to a new framework. They also took care of integrations with a couple of third-party tools we already used. We worked together for around 5 months.

  • Overall Rating 5.0
  • Quality 5.0
  • Schedule 5.0
  • Project Cost 5.0
  • Willing To Refer 5.0
Project Type:
Web Development
Project Cost:
$500,000+
Project Duration:
Nov 2025 - Apr 2026
Business Type:
Sports & Fitness
Location:
Melbourne, Australia

Questions & Answers

Please describe your company, your role, and the industry you operate in.
Kinetic Fitness is a Sports & Fitness business in Melbourne, Australia. As Chief Digital Officer, I was responsible for this project on our side and the main contact for ESR Labs.
What specific problem or business challenge led you to hire this company?
Our existing setup was holding us back. We wanted to rebuild a slow, outdated web app and move it to a new framework before our busy season.
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?
They had relevant experience in Sports & Fitness 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?
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. They are a reliable Web Development partner.

Great Experience With ESR Labs on Our Mobile App Development Project

Zoe Harris / Founder | May 19, 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. 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.

It has made a real difference to how our team works day to day. Overall, a team we trust and plan to keep working with.

Project summary

We engaged ESR Labs to rebuild our existing mobile app, which had poor reviews and frequent crashes. The work covered requirements, design, development, testing and launch support. The project took roughly 7 months from kickoff to launch.

  • Overall Rating 4.5
  • Quality 4.5
  • Schedule 4.5
  • Project Cost 5.0
  • Willing To Refer 5.0
Project Type:
Mobile App Development
Project Cost:
$10,000 to $49,999
Project Duration:
Aug 2025 - Mar 2026
Business Type:
Energy & Utilities
Location:
Adelaide, Australia

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I work as Founder at Trueline Solar. We operate in Energy & Utilities and most of our customers are in and around Adelaide, Australia.
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 rebuild our existing mobile app, which had poor reviews and frequent crashes 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?
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?
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?
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.

ESR Labs Delivered a Quality Web Development Solution on Time

Liam Wilson / IT Director | May 11, 2026

Honestly, this was one of the smoothest projects we have run with an outside team. They shared working builds regularly, so we could test early and give feedback before things were locked in. 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 Web Development work has already made a noticeable difference — tasks that used to take hours now take minutes.

I would recommend ESR Labs to anyone looking for a dependable Web Development partner.

Project summary

ESR Labs was brought in to build a customer portal where clients can log in, track orders and download invoices. They also took care of integrations with a couple of third-party tools we already used. We worked together for around 8 months.

  • Overall Rating 4.5
  • Quality 4.0
  • Schedule 4.5
  • Project Cost 4.0
  • Willing To Refer 5.0
Project Type:
Web Development
Project Cost:
$50,000 to $149,999
Project Duration:
Jul 2025 - Mar 2026
Business Type:
Financial Services
Location:
Montreal, Canada

Questions & Answers

Please describe your company, your role, and the industry you operate in.
Cobalt Wealth is a Financial Services business in Montreal, Canada. As IT Director, I was responsible for this project on our side and the main contact for ESR Labs.
What specific problem or business challenge led you to hire this company?
Our existing setup was holding us back. We wanted to build a customer portal where clients can log in, track orders and download invoices before our busy season.
What services did the company provide for your project?
Web Development, plus QA and some consulting on how to structure the project.
Why did you choose this company over other providers you considered?
They had relevant experience in Financial Services 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?
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?
We can now handle more volume without adding staff, which was the main goal.
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 team to work with — professional, responsive and reliable

Mark Foster / CEO | Apr 16, 2026

ESR Labs did an excellent job for us. The developers were knowledgeable and made a few suggestions that ended up saving us time and money. The team asked a lot of questions early on, which felt slow at first but meant there were very few surprises later. 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. We would definitely work with them again.

Project summary

We hired ESR Labs 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 project took roughly 4 months from kickoff to launch.

  • Overall Rating 5.0
  • Quality 5.0
  • Schedule 5.0
  • 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:
Real Estate
Location:
Denver, USA

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I work as CEO at Kinetic Properties. We operate in Real Estate and most of our customers are in and around Denver, USA.
What specific problem or business challenge led you to hire this company?
Our existing setup was holding us back. We wanted to build iOS and Android apps for our customers, including booking, payments and push notifications before our busy season.
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?
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?
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?
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.

Good value and a team that genuinely cares about the result

Lauren Graham / Program Manager | Apr 05, 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. 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.

We launched on schedule and have not had any major issues since.

We would definitely work with them again.

Project summary

We engaged ESR Labs 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. The engagement ran for about 5 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:
Aug 2025 - Jan 2026
Business Type:
Fashion & Apparel
Location:
Raleigh, USA

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I work as Program Manager at Riverbend Fashion. We operate in Fashion & Apparel and most of our customers are in and around Raleigh, USA.
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?
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?
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?
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.

A reliable long-term partner for our tech needs

Callum Lloyd / Head of Product | Jan 24, 2026

I would rate this engagement highly on almost every front. The developers were knowledgeable and made a few suggestions that ended up saving us time and money. Their project manager kept things organised and was quick to flag anything that might affect the timeline.

Feedback from our customers has been very positive so far. Happy to recommend them.

Project summary

We engaged ESR Labs to redesign and rebuild our company website on a modern stack. The work covered requirements, design, development, testing and launch support. The project took roughly 7 months from kickoff to launch.

  • Overall Rating 5.0
  • Quality 4.5
  • Schedule 5.0
  • Project Cost 5.0
  • Willing To Refer 5.0
Project Type:
Web Development
Project Cost:
$50,000 to $149,999
Project Duration:
May 2025 - Dec 2025
Business Type:
Travel & Hospitality
Location:
Leeds, UK

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I work as Head of Product at Brightpath Hospitality Ltd. We operate in Travel & Hospitality and most of our customers are in and around Leeds, UK.
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 redesign and rebuild our company website on a modern stack so they could focus on customers.
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?
They had relevant experience in Travel & Hospitality 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 Travel & Hospitality 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?
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, I would recommend them and we plan to work with them again.

Strong Technical Skills and a Very Responsive Mobile App Development Team

Pieter Nkosi / Founder | Jan 22, 2026

We were very happy with how this project went. They were upfront about what was realistic within our budget, which helped us prioritise the right features. 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. Overall, a team we trust and plan to keep working with.

Project summary

Our company worked with ESR Labs to build iOS and Android apps for our customers, including booking, payments and push notifications. Their team handled planning, development and QA, with our product owner signing off each milestone. 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:
$10,000 to $49,999
Project Duration:
Mar 2025 - Dec 2025
Business Type:
Sports & Fitness
Location:
Durban, South Africa

Questions & Answers

Please describe your company, your role, and the industry you operate in.
We're a mid-sized Sports & Fitness company based in Durban, South Africa. I'm the Founder 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 build iOS and Android apps for our customers, including booking, payments and push notifications.
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. ESR Labs 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?
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.

Professional AI & Machine Learning Team, Smooth Delivery From Start to Finish

Olivia Taylor / Owner | Jan 18, 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.

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

ESR Labs was brought in to add an AI chatbot to our support site that answers questions from our help docs. Scope included discovery workshops, development in two-week sprints and a short support period after launch. The engagement ran for about 8 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:
Less than $10,000
Project Duration:
Mar 2025 - Nov 2025
Business Type:
Healthcare
Location:
Brisbane, Australia

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I work as Owner at Swift Clinics Pty Ltd. We operate in Healthcare and most of our customers are in and around Brisbane, Australia.
What specific problem or business challenge led you to hire this company?
Our existing setup was holding us back. We wanted to add an AI chatbot to our support site that answers questions from our help docs before our busy season.
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. ESR Labs 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?
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?
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?
We can now handle more volume without adding staff, which was the main goal.
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.
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