Red Rectangle LLC

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Details

Founded:
2017
Hourly Rates:
Undisclosed
Employees:
2 - 9
Ratings:
4.1 8 Reviews

Industries Served

Fashion & Apparel Financial Services Information Technology Government & Public Sector Insurance Logistics & Supply Chain Legal Services Real Estate

Where We Specialize

18% Game Testing
Game Testing 18%
Blockchain Development 17%
Metaverse Development 15%
Web3 14%
Testing Services 9%
Implementation Services 9%
Mobile App Development 6%
AI Development 6%
Web Development 2%
E-commerce Development 2%
Bot Development 2%

Industry Expertise

Travel45% Automotive32% Hospitality23%

Typical Project Size

60% Midmarket Business
21% Small Business
19% Enterprise

About

Red Rectangle LLC works with clients to plan, build, and ship digital products. The company's main offerings are Mobile App Development and Custom Software Development. The company operates with a team of 2 - 9 professionals. These details offer a useful starting point when evaluating Red Rectangle LLC.

Red Rectangle LLC Reviews

4.1 8 Reviews
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Reliable AI & Machine Learning Partner That Delivered What They Promised

Carlos Johnson / Director | May 07, 2026

I would rate this engagement highly on almost every front. 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. 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.

Feedback from our customers has been very positive so far. We are already discussing the next phase with them.

Project summary

We engaged Red Rectangle LLC to automate document data extraction that our team was doing by hand. They worked alongside our in-house team, which mostly handled business requirements and testing. We worked together for around 9 months.

  • Overall Rating 4.5
  • Quality 4.5
  • Schedule 4.0
  • Project Cost 4.0
  • Willing To Refer 5.0
Project Type:
AI & Machine Learning
Project Cost:
$10,000 to $49,999
Project Duration:
Jun 2025 - Mar 2026
Business Type:
Fashion & Apparel
Location:
San Diego, USA

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I work as Director at Ironwood Fashion LLC. We operate in Fashion & Apparel and most of our customers are in and around San Diego, USA.
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 automate document data extraction that our team was doing by hand.
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?
We compared three or four agencies. Red Rectangle LLC 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?
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?
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?
Definitely. We have already started talking about the next phase.

Solid AI & Machine Learning Work With Clear Communication Throughout

Siddharth Agarwal / Founder & CEO | Apr 30, 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. Their project manager kept things organised and was quick to flag anything that might affect the timeline.

The AI & Machine Learning work has already made a noticeable difference — tasks that used to take hours now take minutes. I would recommend Red Rectangle LLC to anyone looking for a dependable AI & Machine Learning partner.

Project summary

Our company worked with Red Rectangle LLC to build a demand forecasting model on top of our sales data. The work covered requirements, design, development, testing and launch support. The engagement ran for about 3 months.

  • Overall Rating 4.5
  • Quality 4.0
  • Schedule 4.5
  • Project Cost 4.0
  • Willing To Refer 5.0
Project Type:
AI & Machine Learning
Project Cost:
$50,000 to $149,999
Project Duration:
Dec 2025 - Mar 2026
Business Type:
Financial Services
Location:
Hyderabad, India

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I'm the Founder & CEO at Silverline Capital, a Financial Services company based in Hyderabad, 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?
Our existing setup was holding us back. We wanted to build a demand forecasting model on top of our sales data 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?
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?
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, I've already recommended them to a couple of people I know.

Capable Blockchain Development team — happy with the end result

Luke Smith / Head of Digital Transformation | Apr 08, 2026

We got a good result in the end, but the road there had a few bumps. 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. They shared working builds regularly, so we could test early and give feedback before things were locked in.

Feedback from our customers has been very positive so far. We had to follow up a few times on smaller bug fixes after launch. We are already discussing the next phase with them.

Project summary

We engaged Red Rectangle LLC to develop and audit smart contracts for a tokenized loyalty program. They also took care of integrations with a couple of third-party tools we already used. Overall it was a 7-month engagement.

  • Overall Rating 3.5
  • Quality 3.5
  • Schedule 3.5
  • Project Cost 3.5
  • Willing To Refer 5.0
Project Type:
Blockchain Development
Project Cost:
$500,000+
Project Duration:
Jul 2025 - Feb 2026
Business Type:
Information Technology
Location:
Adelaide, Australia

Questions & Answers

Please describe your company, your role, and the industry you operate in.
We're a mid-sized Information Technology company based in Adelaide, Australia. I'm the Head of Digital Transformation 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 develop and audit smart contracts for a tokenized loyalty program.
What services did the company provide for your project?
Blockchain 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?
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?
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.

Great Experience With Red Rectangle LLC on Our Quality Assurance & Testing Project

Brandon Coleman / Co-Founder | Mar 16, 2026

Red Rectangle LLC did an excellent job for us. They took the time to understand our business before suggesting anything, which we appreciated after previous agencies jumped straight into building. 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. We would definitely work with them again.

Project summary

We engaged Red Rectangle LLC 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 4.5
  • Quality 4.5
  • Schedule 5.0
  • Project Cost 5.0
  • Willing To Refer 5.0
Project Type:
Quality Assurance & Testing
Project Cost:
Less than $10,000
Project Duration:
Jul 2025 - Feb 2026
Business Type:
Government & Public Sector
Location:
New York, USA

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I work as Co-Founder at Greenfield Public Services Inc. We operate in Government & Public Sector and most of our customers are in and around New York, USA.
What specific problem or business challenge led you to hire this company?
We needed to take over manual and regression testing before each release, and we didn't have the in-house capacity to do it ourselves.
What services did the company provide for your project?
Mainly Quality Assurance & Testing. 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?
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?
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 Quality Assurance & Testing partner.

Would happily work with them again

Oliver Evans / Co-Founder | Feb 22, 2026

Red Rectangle LLC did an excellent job for us. Communication was consistent. We had a weekly call, a shared Slack channel and a project board we could check at any time. They shared working builds regularly, so we could test early and give feedback before things were locked in.

We launched on schedule and have not had any major issues since. We are already discussing the next phase with them.

Project summary

We hired Red Rectangle LLC to take over manual and regression testing before each release. They also took care of integrations with a couple of third-party tools we already used. We worked together for around 7 months.

  • Overall Rating 4.5
  • Quality 4.5
  • Schedule 4.5
  • Project Cost 4.5
  • Willing To Refer 5.0
Project Type:
Quality Assurance & Testing
Project Cost:
$10,000 to $49,999
Project Duration:
Jun 2025 - Jan 2026
Business Type:
Insurance
Location:
Nottingham, UK

Questions & Answers

Please describe your company, your role, and the industry you operate in.
Atlas Assurance Ltd is a Insurance business in Nottingham, UK. As Co-Founder, I was responsible for this project on our side and the main contact for Red Rectangle LLC.
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 take over manual and regression testing before each release.
What services did the company provide for your project?
End-to-end Quality Assurance & Testing — 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. Red Rectangle LLC 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?
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?
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.

Great team to work with — professional, responsive and reliable

Jonas Schmidt / CEO | Feb 20, 2026

Red Rectangle LLC did good work for us, and we would use them again. Even with the time zone difference, responses usually came the same day and we never felt left in the dark. We dealt with the same core team throughout, so we did not have to keep re-explaining things. Their project manager kept things organised and was quick to flag anything that might affect the timeline.

It has made a real difference to how our team works day to day. 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 engaged Red Rectangle LLC to build an AR product viewer so customers can preview items in their own space. 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 4.0
  • Quality 4.5
  • Schedule 4.0
  • Project Cost 4.0
  • Willing To Refer 5.0
Project Type:
AR/VR Development
Project Cost:
Less than $10,000
Project Duration:
Sep 2025 - Dec 2025
Business Type:
Logistics & Supply Chain
Location:
Stuttgart, Germany

Questions & Answers

Please describe your company, your role, and the industry you operate in.
We're a mid-sized Logistics & Supply Chain company based in Stuttgart, Germany. 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 team was spending too much time on manual work. The goal was to build an AR product viewer so customers can preview items in their own space 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?
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?
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?
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?
Definitely. We have already started talking about the next phase.

Good work overall, with a few bumps along the way

Noah Gagnon / Project Manager | Jan 19, 2026

The final product works well for us, although the process could have been smoother. 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.

Feedback from our customers has been very positive so far. There were some early misunderstandings on requirements that took a few rounds to sort out. Overall, a team we trust and plan to keep working with.

Project summary

We partnered with Red Rectangle LLC to build a supply chain traceability prototype on a permissioned blockchain. They worked alongside our in-house team, which mostly handled business requirements and testing. The engagement ran for about 4 months.

  • Overall Rating 3.5
  • Quality 3.5
  • Schedule 3.5
  • Project Cost 4.0
  • Willing To Refer 5.0
Project Type:
Blockchain Development
Project Cost:
$50,000 to $149,999
Project Duration:
Jul 2025 - Nov 2025
Business Type:
Legal Services
Location:
Ottawa, Canada

Questions & Answers

Please describe your company, your role, and the industry you operate in.
We're a mid-sized Legal Services company based in Ottawa, Canada. 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 a supply chain traceability prototype on a permissioned blockchain.
What services did the company provide for your project?
End-to-end Blockchain Development — 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?
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?
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?
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. They are a reliable Blockchain Development partner.

Solid delivery, though timelines needed some pushing

Niamh Walsh / Head of Digital Transformation | Jan 13, 2026

We got a good result in the end, but the road there had a few bumps. 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. Communication was consistent. We had a weekly call, a shared Slack channel and a project board we could check at any time.

We launched on schedule and have not had any major issues since. We had to follow up a few times on smaller bug fixes after launch. We would definitely work with them again.

Project summary

We hired Red Rectangle LLC to build a Shopify store with custom features for our product range. They worked alongside our in-house team, which mostly handled business requirements and testing. The engagement ran for about 8 months.

  • Overall Rating 4.0
  • Quality 3.5
  • Schedule 3.5
  • Project Cost 3.5
  • Willing To Refer 5.0
Project Type:
E-commerce Development
Project Cost:
$500,000+
Project Duration:
Apr 2025 - Dec 2025
Business Type:
Real Estate
Location:
Galway, Ireland

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I'm the Head of Digital Transformation at Riverbend Homes, a Real Estate company based in Galway, Ireland. 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 a Shopify store with custom features for our product range so they could focus on customers.
What services did the company provide for your project?
E-commerce 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. Red Rectangle LLC 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?
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?
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.
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