NineStack

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Details

Founded:: 2017
Hourly Rates:: < $25 / hr
Employees:: 50 - 249
Ratings:: 4.8 8 Reviews

Industries Served

Construction Retail & E-commerce Media & Entertainment Government & Public Sector Travel & Hospitality Education Information Technology Gaming & Gambling

Where We Specialize

23% Bot Development

Bot Development 23%

IoT Development 18%

Virtual Reality 15%

Mobile App Development 14%

Web Development 12%

AI Development 11%

Augmented Reality 7%

Industry Expertise

Travel100%

Typical Project Size

57% Midmarket Business

29% Enterprise

14% Small Business

About

NineStack has been in business since 2017, delivering technology projects for clients. Their core services include Mobile App Development and Custom Software Development. NineStack employs 50 - 249 people. Typical hourly rates run around < $25 / hr/hr. NineStack holds a 4.0-star rating across 1 client reviews. NineStack operates out of Penha de França, India. These details offer a useful starting point when evaluating NineStack.

NineStack Reviews

4.8 8 Reviews

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A reliable long-term partner for our tech needs

Tom Lloyd / Project Manager | Aug 29, 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. 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. I would recommend NineStack to anyone looking for a dependable IoT Development partner.

Project summary

Our company worked with NineStack to build firmware and a companion app for a smart device we were launching. The work covered requirements, design, development, testing and launch support. 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:: IoT Development
Project Cost:: $150,000 to $499,999
Project Duration:: Dec 2025 - Aug 2026
Business Type:: Construction
Location:: Leeds, UK

Questions & Answers

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

We're a mid-sized Construction company based in Leeds, 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?

We had tried to do this internally and it stalled. We needed specialists to build firmware and a companion app for a smart device we were launching.

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?

They had relevant experience in Construction 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. 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?

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.

Exceeded our expectations on quality and communication

Ruben Smit / Director | Jul 06, 2026

Our experience with NineStack was really positive from start to finish. We dealt with the same core team throughout, so we did not have to keep re-explaining things. 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.

Feedback from our customers has been very positive so far.

Happy to recommend them.

Project summary

We partnered with NineStack 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. We worked together for around 9 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:: Aug 2025 - May 2026
Business Type:: Retail & E-commerce
Location:: Utrecht, Netherlands

Questions & Answers

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

Brightpath Retail BV is a Retail & E-commerce business in Utrecht, Netherlands. As Director, I was responsible for this project on our side and the main contact for NineStack.

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 develop a field-staff app with offline mode that syncs back to our main system.

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. NineStack 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?

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've already recommended them to a couple of people I know.

Solid AI & Machine Learning Work With Clear Communication Throughout

Heather Fisher / Engineering Manager | Jun 24, 2026

NineStack 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. The team asked a lot of questions early on, which felt slow at first but meant there were very few surprises later.

We are already seeing better numbers than before the project.

We are already discussing the next phase with them.

Project summary

We engaged NineStack to build a demand forecasting model on top of our sales data. Scope included discovery workshops, development in two-week sprints and a short support period after launch. 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:: Nov 2025 - May 2026
Business Type:: Media & Entertainment
Location:: San Diego, USA

Questions & Answers

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

I work as Engineering Manager at Vertex Pictures. We operate in Media & Entertainment and most of our customers are in and around San Diego, 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 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?

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?

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, 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?

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.

Easy to work with and very transparent on timelines and cost

Owen Sandhu / Co-Founder & CTO | Jun 15, 2026

Overall we had a good experience working with NineStack. They shared working builds regularly, so we could test early and give feedback before things were locked in. The team asked a lot of questions early on, which felt slow at first but meant there were very few surprises later.

Feedback from our customers has been very positive so far. Their team changed one developer midway, which slowed things down for a couple of weeks.

I would recommend NineStack to anyone looking for a dependable AI & Machine Learning partner.

Project summary

We partnered with NineStack 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 9 months.

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

Project Type:: AI & Machine Learning
Project Cost:: Less than $10,000
Project Duration:: Jul 2025 - Apr 2026
Business Type:: Government & Public Sector
Location:: Montreal, Canada

Questions & Answers

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

Kinetic Public Services Inc is a Government & Public Sector business in Montreal, Canada. As Co-Founder & CTO, I was responsible for this project on our side and the main contact for NineStack.

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?

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?

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, 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 would recommend them and we plan to work with them again.

Good value and a team that genuinely cares about the result

Meera Bose / CEO | May 27, 2026

Our experience with NineStack was really positive from start to finish. 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. 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 Mobile App Development work has already made a noticeable difference — tasks that used to take hours now take minutes. I would recommend NineStack to anyone looking for a dependable Mobile App Development partner.

Project summary

We engaged NineStack to build iOS and Android apps for our customers, including booking, payments and push notifications. They worked alongside our in-house team, which mostly handled business requirements and testing. 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:: Mobile App Development
Project Cost:: Less than $10,000
Project Duration:: Oct 2025 - Apr 2026
Business Type:: Travel & Hospitality
Location:: Mumbai, India

Questions & Answers

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

We're a mid-sized Travel & Hospitality company based in Mumbai, India. I'm the CEO 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 build iOS and Android apps for our customers, including booking, payments and push notifications before our busy season.