UpStack

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Details

Founded:: 2014
Hourly Rates:: $50 - $99 / hr
Employees:: 50 - 249
Ratings:: 4.8 8 Reviews

Industries Served

Agriculture Automotive Legal Services Information Technology Financial Services Mining & Metals Energy & Utilities

Where We Specialize

21% AI Development

AI Development 21%

Mobile App Development 20%

Software Development 17%

Web Development 16%

Cross Platform 16%

Bot Development 10%

Industry Expertise

Social Media74% On-Demand26%

Typical Project Size

43% Enterprise

43% Midmarket Business

14% Small Business

About

UpStack is a software development company that turns ideas into working products. UpStack focuses on Web Development and Mobile App Development. UpStack employs 50 - 249 people. Typical hourly rates run around $50 - $99 / hr/hr. Their home base is New York, NY. Overall, UpStack is one of the options worth shortlisting for a technology project.

UpStack Reviews

4.8 8 Reviews

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A reliable long-term partner for our tech needs

Meera Menon / Chief Digital Officer | Oct 08, 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. 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. We are already discussing the next phase with them.

Project summary

We partnered with UpStack to build a customer portal where clients can log in, track orders and download invoices. Their team handled planning, development and QA, with our product owner signing off each milestone. The engagement ran for about 3 months.

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

Project Type:: Web Development
Project Cost:: $500,000+
Project Duration:: Jun 2026 - Sep 2026
Business Type:: Agriculture
Location:: Kolkata, India

Questions & Answers

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

I'm the Chief Digital Officer at Stonebridge Harvest Pvt Ltd, a Agriculture company based in Kolkata, 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 build a customer portal where clients can log in, track orders and download invoices.

What services did the company provide for your project?

End-to-end Web Development — 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. UpStack 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?

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?

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 Web Development partner.

Honest advice and solid execution

Zoe Taylor / Senior Product Manager | Aug 26, 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. 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 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. We are already discussing the next phase with them.

Project summary

We hired UpStack to rebuild an internal order management system that had outgrown its original design. The work covered requirements, design, development, testing and launch support. We worked together for around 6 months.

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

Project Type:: Software Development
Project Cost:: $500,000+
Project Duration:: Dec 2025 - Jun 2026
Business Type:: Automotive
Location:: Sydney, Australia

Questions & Answers

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

Blue Harbor Mobility is a Automotive business in Sydney, Australia. As Senior Product Manager, I was responsible for this project on our side and the main contact for UpStack.

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 an internal order management system that had outgrown its original design.

What services did the company provide for your project?

Software 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 Automotive 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?

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?

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

Good value and a team that genuinely cares about the result

Heather Brooks / Co-Founder & CTO | Jul 04, 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. 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.

We would definitely work with them again.

Project summary

We partnered with UpStack to rebuild an internal order management system that had outgrown its original design. They worked alongside our in-house team, which mostly handled business requirements and testing. Overall it was a 9-month engagement.

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

Project Type:: Software Development
Project Cost:: $10,000 to $49,999
Project Duration:: Aug 2025 - May 2026
Business Type:: Legal Services
Location:: Raleigh, USA

Questions & Answers

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

I'm the Co-Founder & CTO at Crestview Law Group Inc, a Legal Services company based in Raleigh, 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 existing setup was holding us back. We wanted to rebuild an internal order management system that had outgrown its original design before our busy season.

What services did the company provide for your project?

End-to-end Software Development — 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. UpStack 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?

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?

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?

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 Software Development partner.

Dependable Web Development Partner for a Growing Information Technology Business

Lerato Botha / Chief Digital Officer | Jun 29, 2026

Our experience with UpStack 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. 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.

Since launch, everything has been stable and our team has adapted to it quickly. Overall, a team we trust and plan to keep working with.

Project summary

We partnered with UpStack to rebuild a slow, outdated web app and move it to a new framework. The project was split into milestones, with a working build shared at the end of each one. Overall it was a 7-month engagement.

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:: $500,000+
Project Duration:: Nov 2025 - Jun 2026
Business Type:: Information Technology
Location:: Johannesburg, South Africa

Questions & Answers

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

We're a mid-sized Information Technology company based in Johannesburg, South Africa. 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?

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, 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 Information Technology 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?

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?

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. They are a reliable Web Development partner.

Skilled AI & Machine Learning Team That Understood Our Business

Jessica Bennett / Senior Engineering Manager | Mar 12, 2026

Our experience with UpStack was really positive from start to finish. They took the time to understand our business before suggesting anything, which we appreciated after previous agencies jumped straight into building. 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 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. Overall, a team we trust and plan to keep working with.

Project summary

Our company worked with UpStack 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 2 months from kickoff to launch.

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:: $500,000+
Project Duration:: Dec 2025 - Feb 2026
Business Type:: Financial Services
Location:: Chicago, USA

Questions & Answers

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

Horizon Capital Inc is a Financial Services business in Chicago, USA. As Senior Engineering Manager, I was responsible for this project on our side and the main contact for UpStack.

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, 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?

They understood our goals quickly, partly because they had worked with Financial Services 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?

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?

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

Great team to work with — professional, responsive and reliable

Olivia Smith / Director | Feb 14, 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. The team asked a lot of questions early on, which felt slow at first but meant there were very few surprises later.

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

UpStack was brought in 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. Overall it was a 7-month engagement.

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:: $10,000 to $49,999
Project Duration:: May 2025 - Dec 2025
Business Type:: Information Technology
Location:: Melbourne, Australia

Questions & Answers

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

Lumen Labs is a Information Technology business in Melbourne, Australia. As Director, I was responsible for this project on our side and the main contact for UpStack.

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 our existing mobile app, which had poor reviews and frequent crashes.

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. UpStack asked the best questions and had good reviews from past clients.

How clearly did the company understand your requirements and business goals?

They understood our goals quickly, partly because they had worked with Information Technology 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?

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. They are a reliable Mobile App Development partner.

Reliable Web Development Partner That Delivered What They Promised

Pieter van der Merwe / Co-Founder | Feb 12, 2026

We were very happy with how this project went. The team asked a lot of questions early on, which felt slow at first but meant there were very few surprises later. 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 UpStack to redesign and rebuild our company website on a modern stack. Scope included discovery workshops, development in two-week sprints and a short support period after launch. We worked together for around 6 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:: $10,000 to $49,999
Project Duration:: Jul 2025 - Jan 2026
Business Type:: Mining & Metals
Location:: Cape Town, South Africa

Questions & Answers

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

Swift Mining (Pty) Ltd is a Mining & Metals business in Cape Town, South Africa. As Co-Founder, I was responsible for this project on our side and the main contact for UpStack.

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 and rebuild our company website on a modern stack.