5.0/5
(3 reviews)
About 3seven9 Agency
3seven9 Agency always addresses your specific needs and work hard to make client's collaboration productive & enjoyable. Their main goal is to build a project which will show your idea and include the best solutions from their side. They help customers with the project evaluation, market & opponents research, functionality ideas, and development cost optimization.
Services
Mobile App Development
Web Development
Mobile App Design
3seven9 Agency Reviews
Write a ReviewBest technology partner we have ever worked with
Anna Kowalski / Project Lead - EuroSoftware GmbH
Verified
Apr 14, 2026
Apr 14, 2026
Project summary: Our company needed a reliable technology partner to deliver a complex project within a tight timeline.
We evaluated five vendors before choosing this team, and the decision has been fully validated. Their technical skills are top-tier, but what really sets them apart is their commitment to understanding the business context behind every requirement. The project was delivered on time, the solution is robust and scalable, and the knowledge transfer was thorough. A truly outstanding engagement from start to finish.
PROS
Deep technical expertise, professional project management, responsive support, great value
CONS
Wish we had engaged them sooner; no meaningful issues to report
Project TypeE-commerce Development
IndustryAutomotive
Project Cost$50,000 to $149,999
DurationJan 2025 – Jul 2025
Questions & Answers
Please describe your company, your role, and the industry you operate in.
We are a Project Lead-led organisation operating in the Automotive sector. My role involves overseeing strategic technology decisions and vendor partnerships. We have been growing steadily and needed a trusted partner to help us scale our digital capabilities.
What specific problem or business challenge led you to hire this company?
Our primary challenge was modernising our Automotive operations through E-commerce Development. Legacy systems were limiting our agility and we needed a solution that could scale with our growth ambitions and integrate with our existing infrastructure.
What services did the company provide for your project?
They delivered a comprehensive E-commerce Development engagement covering requirements analysis, solution architecture, full-cycle development, QA testing, deployment, and post-launch support. The scope was well-defined and executed without scope creep.
Why did you choose this company over other providers you considered?
Their demonstrated expertise in E-commerce Development and a strong portfolio of Automotive projects set them apart during our evaluation. The discovery call gave us confidence they truly understood our domain, not just the technology.
How clearly did the company understand your requirements and business goals?
Exceptionally well. They ran a structured discovery process, asked insightful questions, and produced a detailed requirements document that captured nuances we hadn't even articulated ourselves. That foundation made the entire project smoother.
How was your overall experience with their communication and project management?
Outstanding. We had a dedicated project manager, weekly status calls, a shared project board, and same-day responses to queries. There were no surprises — risks were flagged early and resolved before they became issues.
Did the company deliver the project on time and within your expected budget?
Yes, the project was delivered on the agreed date and within budget. Their estimates were realistic and they managed scope carefully, flagging any potential changes before they impacted the timeline or cost.
What tangible results or business impact have you seen since the project was completed?
Significant. Since go-live we have seen measurable improvements in operational efficiency, customer satisfaction scores have risen, and the solution has already paid back a substantial portion of the investment. The team built something we are genuinely proud of.
What did you like most about working with this company?
Their genuine investment in our success. They didn't just execute a spec — they brought ideas, challenged assumptions, and cared about the outcome as much as we did. The quality of the codebase and documentation also stood out.
Would you recommend this company to others, and would you work with them again?
Absolutely and without hesitation. We have already referred two colleagues, and we are actively scoping the next phase of work with them. They are our go-to partner for E-commerce Development projects going forward.
Truly impressed with their expertise and commitment
Sophie Dubois / Innovation Lead - French Digital SARL
Verified
Sep 08, 2024
Sep 08, 2024
Project summary: Our company needed a reliable technology partner to deliver a complex project within a tight timeline.
From day one, the team felt like an extension of our own organisation. They immersed themselves in our domain, challenged us to think bigger, and delivered a solution that is both technically sound and strategically valuable. The project came in on time and within budget, which is rare for an engagement of this complexity. We are delighted with the outcome and look forward to a long-term partnership.
PROS
Deep technical expertise, professional project management, responsive support, great value
CONS
Minor timezone overlap challenges early on, resolved quickly with async communication
Project TypeIT Managed Services
IndustryAgriculture
Project Cost$150,000 to $499,999
DurationSep 2024 – Jul 2025
Questions & Answers
Please describe your company, your role, and the industry you operate in.
We are a Innovation Lead-led organisation operating in the Agriculture sector. My role involves overseeing strategic technology decisions and vendor partnerships. We have been growing steadily and needed a trusted partner to help us scale our digital capabilities.
What specific problem or business challenge led you to hire this company?
Our primary challenge was modernising our Agriculture operations through IT Managed Services. Legacy systems were limiting our agility and we needed a solution that could scale with our growth ambitions and integrate with our existing infrastructure.
What services did the company provide for your project?
They delivered a comprehensive IT Managed Services engagement covering requirements analysis, solution architecture, full-cycle development, QA testing, deployment, and post-launch support. The scope was well-defined and executed without scope creep.
Why did you choose this company over other providers you considered?
Their demonstrated expertise in IT Managed Services and a strong portfolio of Agriculture projects set them apart during our evaluation. The discovery call gave us confidence they truly understood our domain, not just the technology.
How clearly did the company understand your requirements and business goals?
Exceptionally well. They ran a structured discovery process, asked insightful questions, and produced a detailed requirements document that captured nuances we hadn't even articulated ourselves. That foundation made the entire project smoother.
How was your overall experience with their communication and project management?
Outstanding. We had a dedicated project manager, weekly status calls, a shared project board, and same-day responses to queries. There were no surprises — risks were flagged early and resolved before they became issues.
Did the company deliver the project on time and within your expected budget?
Yes, the project was delivered on the agreed date and within budget. Their estimates were realistic and they managed scope carefully, flagging any potential changes before they impacted the timeline or cost.
What tangible results or business impact have you seen since the project was completed?
Significant. Since go-live we have seen measurable improvements in operational efficiency, customer satisfaction scores have risen, and the solution has already paid back a substantial portion of the investment. The team built something we are genuinely proud of.
What did you like most about working with this company?
Their genuine investment in our success. They didn't just execute a spec — they brought ideas, challenged assumptions, and cared about the outcome as much as we did. The quality of the codebase and documentation also stood out.
Would you recommend this company to others, and would you work with them again?
Absolutely and without hesitation. We have already referred two colleagues, and we are actively scoping the next phase of work with them. They are our go-to partner for IT Managed Services projects going forward.
Impressive IoT expertise — devices work flawlessly in production
Kevin O'Brien / CIO - Atlantic Tech
Verified
Nov 20, 2023
Nov 20, 2023
Project summary: We engaged them to build a comprehensive solution addressing our core operational challenges and growth objectives.
Exceptional work across every dimension. The team understood our complex requirements quickly, asked the right clarifying questions, and delivered a solution that exceeded what we thought was possible within our budget. Project management was tight, communication was excellent, and the quality of the codebase is something our engineers have praised repeatedly. We are already scoping the next phase with them.
PROS
Excellent communication, high-quality deliverables, on-time delivery, proactive problem-solving
CONS
Minor timezone overlap challenges early on, resolved quickly with async communication
Project TypeIoT Development
IndustryHuman Resources
Project CostLess than $10,000
DurationDec 2024 – Apr 2026
Questions & Answers
Please describe your company, your role, and the industry you operate in.
We are a CIO-led organisation operating in the Human Resources sector. My role involves overseeing strategic technology decisions and vendor partnerships. We have been growing steadily and needed a trusted partner to help us scale our digital capabilities.
What specific problem or business challenge led you to hire this company?
Our primary challenge was modernising our Human Resources operations through IoT Development. Legacy systems were limiting our agility and we needed a solution that could scale with our growth ambitions and integrate with our existing infrastructure.
What services did the company provide for your project?
They delivered a comprehensive IoT Development engagement covering requirements analysis, solution architecture, full-cycle development, QA testing, deployment, and post-launch support. The scope was well-defined and executed without scope creep.
Why did you choose this company over other providers you considered?
Their demonstrated expertise in IoT Development and a strong portfolio of Human Resources projects set them apart during our evaluation. The discovery call gave us confidence they truly understood our domain, not just the technology.
How clearly did the company understand your requirements and business goals?
Exceptionally well. They ran a structured discovery process, asked insightful questions, and produced a detailed requirements document that captured nuances we hadn't even articulated ourselves. That foundation made the entire project smoother.
How was your overall experience with their communication and project management?
Outstanding. We had a dedicated project manager, weekly status calls, a shared project board, and same-day responses to queries. There were no surprises — risks were flagged early and resolved before they became issues.
Did the company deliver the project on time and within your expected budget?
Yes, the project was delivered on the agreed date and within budget. Their estimates were realistic and they managed scope carefully, flagging any potential changes before they impacted the timeline or cost.
What tangible results or business impact have you seen since the project was completed?
Significant. Since go-live we have seen measurable improvements in operational efficiency, customer satisfaction scores have risen, and the solution has already paid back a substantial portion of the investment. The team built something we are genuinely proud of.
What did you like most about working with this company?
Their genuine investment in our success. They didn't just execute a spec — they brought ideas, challenged assumptions, and cared about the outcome as much as we did. The quality of the codebase and documentation also stood out.
Would you recommend this company to others, and would you work with them again?
Absolutely and without hesitation. We have already referred two colleagues, and we are actively scoping the next phase of work with them. They are our go-to partner for IoT Development projects going forward.
Company Info
Founded
2009
Employees
10 - 49
Hourly Rate
$150 - $199
Client Rating
5.0/5 (3 reviews)
