Cosairus

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Details

Founded:
1999
Hourly Rates:
$100 - $149 / hr
Employees:
10 - 49
Ratings:
4.2 10 Reviews

Industries Served

Mining & Metals Human Resources Retail & E-commerce Agriculture Information Technology Real Estate Media & Entertainment Financial Services

Where We Specialize

19% Bot Development
Bot Development 19%
Mobile App Development 17%
No Code/ Low Code 14%
Web Design 13%
OpenAI 12%
Laravel 9%
Salesforce Development 6%
Web Development 4%
AI Development 4%
Real Estate 2%

Industry Expertise

Sports34% Food31% Restaurant25% Fitness10%

Typical Project Size

42% Midmarket Business
34% Small Business
24% Enterprise

About

Cosairus is a software development company that turns ideas into working products. The company's main offerings are Web Development and Custom Software Development. With 10 - 49 people on staff, Cosairus can take on projects of varying size. Projects are generally billed around $100 - $149 / hr/hr. Cosairus operates out of Atlanta, GA. This gives a quick snapshot of what to expect when working with Cosairus.

Cosairus Reviews

4.2 10 Reviews
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Cosairus Delivered a Quality Mobile App Development Solution on Time

Sam Ngata / Co-Founder & CTO | Oct 01, 2026

The project went well overall. 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. Communication was consistent. We had a weekly call, a shared Slack channel and a project board we could check at any time.

We are already seeing better numbers than before the project. Documentation at handover was a bit thin and we had to ask for more detail. Happy to recommend them.

Project summary

We partnered with Cosairus to develop a field-staff app with offline mode that syncs back to our main system. They worked alongside our in-house team, which mostly handled business requirements and testing. The engagement ran for about 5 months.

  • Overall Rating 4.0
  • Quality 4.5
  • Schedule 4.5
  • Project Cost 4.0
  • Willing To Refer 5.0
Project Type:
Mobile App Development
Project Cost:
Less than $10,000
Project Duration:
Mar 2026 - Aug 2026
Business Type:
Mining & Metals
Location:
Christchurch, New Zealand

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I'm the Co-Founder & CTO at Bluepeak Minerals, a Mining & Metals company based in Christchurch, New Zealand. 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 develop a field-staff app with offline mode that syncs back to our main system before our busy season.
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. Cosairus 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 Mining & Metals 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, I would recommend them and we plan to work with them again.

Quality work, a little slower than we planned

Noah Sandhu / Chief Digital Officer | Sep 02, 2026

The final product works well for us, although the process could have been smoother. Even with the time zone difference, responses usually came the same day and we never felt left in the dark. 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. 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

Cosairus was brought in to build custom CRM modules for how our sales process actually works. The project was split into milestones, with a working build shared at the end of each one. The engagement ran for about 7 months.

  • Overall Rating 3.5
  • Quality 4.0
  • Schedule 3.5
  • Project Cost 3.5
  • Willing To Refer 5.0
Project Type:
CRM Development
Project Cost:
$500,000+
Project Duration:
Dec 2025 - Jul 2026
Business Type:
Human Resources
Location:
Toronto, Canada

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I work as Chief Digital Officer at Nimbus Staffing Inc. We operate in Human Resources and most of our customers are in and around Toronto, Canada.
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 custom CRM modules for how our sales process actually works.
What services did the company provide for your project?
CRM 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. Cosairus 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 Human Resources 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. 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?
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 would recommend them and we plan to work with them again.

Good results, communication improved as the project went on

Nikhil Joshi / Head of Digital | Aug 17, 2026

The final product works well for us, although the process could have been smoother. 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. 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. Their team changed one developer midway, which slowed things down for a couple of weeks. I would recommend Cosairus to anyone looking for a dependable Web Development partner.

Project summary

We engaged Cosairus 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. The engagement ran for about 9 months.

  • Overall Rating 3.5
  • Quality 3.5
  • Schedule 3.5
  • Project Cost 3.5
  • Willing To Refer 5.0
Project Type:
Web Development
Project Cost:
$50,000 to $149,999
Project Duration:
Sep 2025 - Jun 2026
Business Type:
Retail & E-commerce
Location:
Mumbai, India

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I work as Head of Digital at Riverbend Brands. We operate in Retail & E-commerce and most of our customers are in and around Mumbai, India.
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?
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 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?
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?
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.

Skilled CRM Development Team That Understood Our Business

Darragh Kelly / Founder & CEO | Apr 30, 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 were upfront about what was realistic within our budget, which helped us prioritise the right features.

The CRM Development work has already made a noticeable difference — tasks that used to take hours now take minutes. Happy to recommend them.

Project summary

We engaged Cosairus to migrate our sales team to a new CRM and set up automation. They also took care of integrations with a couple of third-party tools we already used. Overall it was a 4-month engagement.

  • Overall Rating 5.0
  • Quality 5.0
  • Schedule 4.5
  • Project Cost 4.5
  • Willing To Refer 5.0
Project Type:
CRM Development
Project Cost:
Less than $10,000
Project Duration:
Dec 2025 - Apr 2026
Business Type:
Agriculture
Location:
Cork, Ireland

Questions & Answers

Please describe your company, your role, and the industry you operate in.
We're a mid-sized Agriculture company based in Cork, Ireland. I'm the Founder & 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 migrate our sales team to a new CRM and set up automation so they could focus on customers.
What services did the company provide for your project?
Mainly CRM 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?
They understood our goals quickly, partly because they had worked with Agriculture 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?
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?
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.

Honest advice and solid execution

Eric Coleman / Co-Founder | Apr 29, 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. We dealt with the same core team throughout, so we did not have to keep re-explaining things. They were upfront about what was realistic within our budget, which helped us prioritise the right features.

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 engaged Cosairus to automate document data extraction that our team was doing by hand. Their team handled planning, development and QA, with our product owner signing off each milestone. Overall it was a 3-month engagement.

  • Overall Rating 4.5
  • Quality 4.5
  • Schedule 5.0
  • Project Cost 4.5
  • Willing To Refer 5.0
Project Type:
AI & Machine Learning
Project Cost:
$10,000 to $49,999
Project Duration:
Dec 2025 - Mar 2026
Business Type:
Retail & E-commerce
Location:
Minneapolis, USA

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I'm the Co-Founder at Oakline Brands, a Retail & E-commerce company based in Minneapolis, 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 automate document data extraction that our team was doing by hand 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?
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?
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?
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.

Great Experience With Cosairus on Our Mobile App Development Project

Matt Campbell / Engineering Manager | Apr 10, 2026

Cosairus did good work for us, and we would use them again. They took the time to understand our business before suggesting anything, which we appreciated after previous agencies jumped straight into building. The team asked a lot of questions early on, which felt slow at first but meant there were very few surprises later.

The Mobile App Development work has already made a noticeable difference — tasks that used to take hours now take minutes. 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

Cosairus was brought in to build iOS and Android apps for our customers, including booking, payments and push notifications. 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 4.5
  • Schedule 4.0
  • Project Cost 4.0
  • Willing To Refer 5.0
Project Type:
Mobile App Development
Project Cost:
$50,000 to $149,999
Project Duration:
May 2025 - Feb 2026
Business Type:
Information Technology
Location:
Vancouver, Canada

Questions & Answers

Please describe your company, your role, and the industry you operate in.
We're a mid-sized Information Technology company based in Vancouver, Canada. I'm the Engineering 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 iOS and Android apps for our customers, including booking, payments and push notifications.
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?
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?
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?
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 Mobile App Development partner.

Strong Technical Skills and a Very Responsive CRM Development Team

Andre Graham / Marketing Director | Mar 17, 2026

Cosairus 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 took the time to understand our business before suggesting anything, which we appreciated after previous agencies jumped straight into building.

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

Project summary

Our company worked with Cosairus to build custom CRM modules for how our sales process actually works. They also took care of integrations with a couple of third-party tools we already used. We worked together for around 4 months.

  • Overall Rating 4.5
  • Quality 5.0
  • Schedule 4.5
  • Project Cost 4.5
  • Willing To Refer 5.0
Project Type:
CRM Development
Project Cost:
$50,000 to $149,999
Project Duration:
Oct 2025 - Feb 2026
Business Type:
Real Estate
Location:
San Diego, USA

Questions & Answers

Please describe your company, your role, and the industry you operate in.
We're a mid-sized Real Estate company based in San Diego, USA. I'm the Marketing Director 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 custom CRM modules for how our sales process actually works before our busy season.
What services did the company provide for your project?
End-to-end CRM Development — 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?
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?
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.

Capable Web Development team — happy with the end result

Derek Henderson / Director | Mar 02, 2026

The final product works well for us, although the process could have been smoother. They were upfront about what was realistic within our budget, which helped us prioritise the right features. We dealt with the same core team throughout, so we did not have to keep re-explaining things.

We launched on schedule and have not had any major issues since. A couple of milestones slipped by a week or so, mostly around testing.

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

Project summary

Our company worked with Cosairus to redesign and rebuild our company website on a modern stack. They worked alongside our in-house team, which mostly handled business requirements and testing. Overall it was a 5-month engagement.

  • Overall Rating 3.5
  • Quality 3.5
  • Schedule 3.5
  • Project Cost 3.5
  • Willing To Refer 5.0
Project Type:
Web Development
Project Cost:
$10,000 to $49,999
Project Duration:
Aug 2025 - Jan 2026
Business Type:
Mining & Metals
Location:
Nashville, USA

Questions & Answers

Please describe your company, your role, and the industry you operate in.
We're a mid-sized Mining & Metals company based in Nashville, USA. 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?
We needed to redesign and rebuild our company website on a modern stack, 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?
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?
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?
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.

They listened, asked the right questions, and delivered

Lauren Carter / Senior Product Manager | Feb 22, 2026

Our experience with Cosairus was really positive from start to finish. The developers were knowledgeable and made a few suggestions that ended up saving us time and money. 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.

The result looks great and performs well, and our internal team found it easy to take over. I would recommend Cosairus to anyone looking for a dependable AI & Machine Learning partner.

Project summary

Our company worked with Cosairus to add an AI chatbot to our support site that answers questions from our help docs. They worked alongside our in-house team, which mostly handled business requirements and testing. The engagement ran for about 5 months.

  • Overall Rating 4.5
  • Quality 4.5
  • Schedule 4.5
  • Project Cost 4.5
  • Willing To Refer 5.0
Project Type:
AI & Machine Learning
Project Cost:
$150,000 to $499,999
Project Duration:
Aug 2025 - Jan 2026
Business Type:
Media & Entertainment
Location:
Boston, USA

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I work as Senior Product Manager at Nimbus Media LLC. We operate in Media & Entertainment and most of our customers are in and around Boston, 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 add an AI chatbot to our support site that answers questions from our help docs 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?
They had relevant experience in Media & Entertainment 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?
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?
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, I've already recommended them to a couple of people I know.

Dependable UI/UX Design Partner for a Growing Financial Services Business

Darren Wong / Managing Director | Jan 18, 2026

Cosairus did an excellent job for us. 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. Communication was consistent. We had a weekly call, a shared Slack channel and a project board we could check at any time.

The UI/UX Design work has already made a noticeable difference — tasks that used to take hours now take minutes. Happy to recommend them.

Project summary

We partnered with Cosairus to build a design system so our product looked consistent across screens. The work covered requirements, design, development, testing and launch support. The project took roughly 6 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:
UI/UX Design
Project Cost:
$10,000 to $49,999
Project Duration:
May 2025 - Nov 2025
Business Type:
Financial Services
Location:
Singapore

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I work as Managing Director at Silverline Finance Pte Ltd. We operate in Financial Services and most of our customers are in and around Singapore.
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 design system so our product looked consistent across screens.
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?
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?
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?
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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