Details

Founded:
2011
Hourly Rates:
$25 - $49 / hr
Employees:
10 - 49
Ratings:
4.7 8 Reviews

Industries Served

Environmental Services Legal Services Automotive Aerospace & Defense Financial Services

Where We Specialize

15% Game Development
Game Development 15%
Mobile App Development 12%
Big Data Analytics 12%
Virtual Reality 12%
E-commerce Development 11%
Progressive Web App 11%
IoT Development 7%
Software Development 5%
Android 5%
Bot Development 4%
AI Development 4%
Web3 2%

Industry Expertise

Logistics100%

Typical Project Size

58% Small Business
24% Midmarket Business
18% Enterprise

About

Sirius Software is a software development company that turns ideas into working products. Sirius Software focuses on Web Development. Sirius Software employs 10 - 49 people. Typical hourly rates run around $25 - $49 / hr/hr. The team is based in Sofia, Bulgaria. Overall, Sirius Software is one of the options worth shortlisting for a technology project.

Sirius Software Reviews

4.7 8 Reviews
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Professional team that made a complex project feel manageable

Ashley Fisher / VP of Engineering | Oct 20, 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. 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. I would recommend Sirius Software to anyone looking for a dependable IoT Development partner.

Project summary

Sirius Software was brought in to build firmware and a companion app for a smart device we were launching. Their team handled planning, development and QA, with our product owner signing off each milestone. Overall it was a 3-month engagement.

  • 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:
$50,000 to $149,999
Project Duration:
Jun 2026 - Sep 2026
Business Type:
Environmental Services
Location:
Atlanta, USA

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I work as VP of Engineering at Vertex Green Solutions. We operate in Environmental Services and most of our customers are in and around Atlanta, 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 firmware and a companion app for a smart device we were launching so they could focus on customers.
What services did the company provide for your project?
IoT 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?
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?
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 IoT Development partner.

Professional Web Development Team, Smooth Delivery From Start to Finish

Hannah Shaw / IT Manager | Sep 30, 2026

The project went well overall. 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.

The Web Development work has already made a noticeable difference — tasks that used to take hours now take minutes. Their team changed one developer midway, which slowed things down for a couple of weeks. We would definitely work with them again.

Project summary

We partnered with Sirius Software to redesign and rebuild our company website on a modern stack. Their team handled planning, development and QA, with our product owner signing off each milestone. The engagement ran for about 5 months.

  • Overall Rating 4.0
  • Quality 4.0
  • Schedule 4.0
  • Project Cost 4.5
  • Willing To Refer 5.0
Project Type:
Web Development
Project Cost:
$50,000 to $149,999
Project Duration:
Apr 2026 - Sep 2026
Business Type:
Legal Services
Location:
Cambridge, UK

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I'm the IT Manager at Northgate Law Group, a Legal Services company based in Cambridge, UK. 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 redesign and rebuild our company website on a modern stack.
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?
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?
Yes, on time and within budget.
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 would recommend them and we plan to work with them again.

Honest advice and solid execution

Stephanie Graham / IT Manager | Jul 03, 2026

Sirius Software did an excellent job for us. They shared working builds regularly, so we could test early and give feedback before things were locked in. 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.

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 Sirius Software to build the multiplayer features for our existing game. The project was split into milestones, with a working build shared at the end of each one. Overall it was a 5-month engagement.

  • Overall Rating 5.0
  • Quality 4.5
  • Schedule 5.0
  • Project Cost 5.0
  • Willing To Refer 5.0
Project Type:
Game Development
Project Cost:
$50,000 to $149,999
Project Duration:
Nov 2025 - Apr 2026
Business Type:
Automotive
Location:
Denver, USA

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I work as IT Manager at Cobalt Motors Inc. We operate in Automotive and most of our customers are in and around Denver, USA.
What specific problem or business challenge led you to hire this company?
We needed to build the multiplayer features for our existing game, and we didn't have the in-house capacity to do it ourselves.
What services did the company provide for your project?
End-to-end Game 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. Sirius Software 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?
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?
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.

Would happily work with them again

Pieter Nkosi / Head of Digital Transformation | Jun 09, 2026

Sirius Software did an excellent job for us. They shared working builds regularly, so we could test early and give feedback before things were locked in. They were upfront about what was realistic within our budget, which helped us prioritise the right features. They took the time to understand our business before suggesting anything, which we appreciated after previous agencies jumped straight into building.

We are already seeing better numbers than before the project.

We are already discussing the next phase with them.

Project summary

Sirius Software was brought in to build a Web3 dashboard and wallet integration for our platform. They also took care of integrations with a couple of third-party tools we already used. Overall it was a 3-month engagement.

  • Overall Rating 5.0
  • Quality 5.0
  • Schedule 5.0
  • Project Cost 5.0
  • Willing To Refer 5.0
Project Type:
Blockchain Development
Project Cost:
$500,000+
Project Duration:
Feb 2026 - May 2026
Business Type:
Environmental Services
Location:
Durban, South Africa

Questions & Answers

Please describe your company, your role, and the industry you operate in.
We're a mid-sized Environmental Services company based in Durban, South Africa. 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?
Our team was spending too much time on manual work. The goal was to build a Web3 dashboard and wallet integration for our platform so they could focus on customers.
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?
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?
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. They are a reliable Blockchain Development partner.

Sirius Software Delivered a Quality IoT Development Solution on Time

Rachel Sullivan / Managing Director | May 29, 2026

The project went well overall. 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.

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.

If you need a team that communicates well and delivers, they are a good choice.

Project summary

Our company worked with Sirius Software to connect our equipment to a cloud dashboard so we could monitor it remotely. Their team handled planning, development and QA, with our product owner signing off each milestone. We worked together for around 5 months.

  • Overall Rating 4.0
  • Quality 4.0
  • Schedule 4.5
  • Project Cost 3.5
  • Willing To Refer 5.0
Project Type:
IoT Development
Project Cost:
$10,000 to $49,999
Project Duration:
Nov 2025 - Apr 2026
Business Type:
Environmental Services
Location:
New York, USA

Questions & Answers

Please describe your company, your role, and the industry you operate in.
We're a mid-sized Environmental Services company based in New York, USA. I'm the Managing 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 connect our equipment to a cloud dashboard so we could monitor it remotely before our busy season.
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?
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?
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 would recommend them and we plan to work with them again.

Great team to work with — professional, responsive and reliable

Priya Fisher / Co-Founder & CTO | May 10, 2026

Honestly, this was one of the smoothest projects we have run with an outside team. 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.

It has made a real difference to how our team works day to day. Happy to recommend them.

Project summary

We hired Sirius Software to develop a field-staff app with offline mode that syncs back to our main system. Their team handled planning, development and QA, with our product owner signing off each milestone. We worked together for around 3 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:
Less than $10,000
Project Duration:
Jan 2026 - Apr 2026
Business Type:
Environmental Services
Location:
Charlotte, USA

Questions & Answers

Please describe your company, your role, and the industry you operate in.
We're a mid-sized Environmental Services company based in Charlotte, USA. I'm the Co-Founder & CTO 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 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, including planning, development, testing and launch support.
Why did you choose this company over other providers you considered?
They had relevant experience in Environmental 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?
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.

Good value and a team that genuinely cares about the result

Layla Al Nuaimi / Co-Founder | Apr 10, 2026

Our experience with Sirius Software was really positive from start to finish. 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. Even with the time zone difference, responses usually came the same day and we never felt left in the dark.

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

We are already discussing the next phase with them.

Project summary

We partnered with Sirius Software to connect our equipment to a cloud dashboard so we could monitor it remotely. They worked alongside our in-house team, which mostly handled business requirements and testing. The project took roughly 9 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:
IoT Development
Project Cost:
Less than $10,000
Project Duration:
May 2025 - Feb 2026
Business Type:
Aerospace & Defense
Location:
Abu Dhabi, UAE

Questions & Answers

Please describe your company, your role, and the industry you operate in.
We're a mid-sized Aerospace & Defense company based in Abu Dhabi, UAE. I'm the Co-Founder 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 connect our equipment to a cloud dashboard so we could monitor it remotely before our busy season.
What services did the company provide for your project?
End-to-end IoT Development — from requirements and design through to deployment and a support period afterwards.
Why did you choose this company over other providers you considered?
They had relevant experience in Aerospace & Defense 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?
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?
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.

Delivered on time and stayed involved after launch

Rahul Joshi / Program Manager | Jan 24, 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. 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.

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

I would recommend Sirius Software to anyone looking for a dependable E-commerce Development partner.

Project summary

We hired Sirius Software to migrate our online store from an older platform to a new one. They worked alongside our in-house team, which mostly handled business requirements and testing. Overall it was a 4-month engagement.

  • Overall Rating 5.0
  • Quality 5.0
  • Schedule 5.0
  • Project Cost 5.0
  • Willing To Refer 5.0
Project Type:
E-commerce Development
Project Cost:
$500,000+
Project Duration:
Jul 2025 - Nov 2025
Business Type:
Financial Services
Location:
Hyderabad, India

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I work as Program Manager at Copper Leaf Wealth Pvt Ltd. We operate in Financial Services and most of our customers are in and around Hyderabad, India.
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 migrate our online store from an older platform to a new one.
What services did the company provide for your project?
Mainly E-commerce 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. Sirius Software 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?
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?
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.
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