Client Value & Trust

Learn how entrepreneurs, business and technology leaders who are after software driven innovation are collaborating with our high-performing teams.

The communication between our teams is excellent. Selleo always clearly communicated with us and we never had any bad surprises. They speak English perfectly.

Managing DirectorWATTx, DE

Collaborative and engaged, Selleo made a marked effort to fully grasp the scope and objectives to achieve the optimal outcomes.

Managing DirectorWATTx, DE

They have good quality code, and we like their approach. Selleo holds themselves to a high standard that I’ve rarely seen in agencies. They only deliver projects that are free of software bugs.

Managing DirectorWATTx, DE

Our teams established a close integration. They quickly became part of our team, which helped us a lot.

Managing DirectorWATTx, DE

We mostly managed Selleo’s resources internally. They made suggestions and waited for us to instruct them whether or not to instate them. Our communication was very direct.

Jörn StampehlCTO, ZenGuard, DE

Selleo offered insightful and actionable suggestions to enhance the website’s UX and overall coding quality. Their involvement in several projects with our onsite team helped reach our timeline goals

Jörn StampehlCTO, ZenGuard, DE

Selleo wrote a very good quality of code. Drawing from an extensive knowledge base, the developers programmed clean, high caliber code.

Jörn StampehlCTO, ZenGuard, DE

Pleasant, skilled, and accommodating, the team maintained a responsive and open dialogue. They were fully capable of collaborating with our existing team.

Jörn StampehlCTO, ZenGuard, DE

Selleo helped us build our digital platform and began the re-write from scratch. They use their good judgment to build something that looks and work well.

Henrik LindbergCTO, Studentvikarie, Sweden

They perform well. I’ve never had to push them or make them work faster in any way. I believe they do exactly what I expect them to do, and there are no surprises, which is what we look for in a team.

Henrik LindbergCTO, Studentvikarie, Sweden

They have surprised us in terms of code quality or breakages. The team works hard, writing good code and completing all work punctually and to a high standard.

Henrik LindbergCTO, Studentvikarie, Sweden

We’re really happy to give them free rein to follow their instincts when solving things. I feel like I can trust them as I can my own team, which is important to me.

Henrik LindbergCTO, Studentvikarie, Sweden

We can talk to them every day, and their leadership is very responsive.

Mike MiklavicCTO, TMC Group, USA

Through Selleo’s phenomenal organization and technical skills, all software initiatives demonstrate reliable functionality and promote internal investing success.

Mike MiklavicCTO, TMC Group, USA

They have an organized and process-oriented approach to problems Their processes smooth out tasks during tight timelines or other issues..

Mike MiklavicCTO, TMC Group, USA

Selleo dedication to the success of the company is noteworthy. They’re skilled and responsive. Customers can anticipate a real partnership while working with them.

Nate OaksCTO & Co-Founder, Breezeway USA

We appreciate how invested Selleo is in our product. Their team strives to be part of our organization by learning our business.

Nate OaksCTO & Co-Founder, Breezeway USA

They outperformed any other contractor we’ve worked with, and their communication, dedication, and quality of work is second to none. Without Selleo’s support, the frontend UI would not exist.

Jan ThomasDirector of Product, Simplaex, DE

As with any agile development process, we identified bugs regularly and prioritized to solve the most significant ones.

Jan ThomasDirector of Product, Simplaex, DE

We wouldn't have a working frontend without them. The functionality and reliability of their work is solid.

Jan ThomasDirector of Product, Simplaex, DE

Northwood Advisors' reputation rides on every solution we deliver. So when I need a development partner, I feel comfortable knowing I've got the Selleo team helping me.

Myron WeberNorthwood Advisors, USA

Selleo has certainly contributed to our recognition as a market leader by customers and strategic partners.

Keith RobertsCOO/CTO, SquadLocker, USA

They are effectively working with us through the entire stack and development process.

Keith RobertsCOO/CTO, SquadLocker, USA

Overall, the quality of the code has been consistently high.

Keith RobertsCOO/CTO, SquadLocker, USA

Selleo treats this project as if it was their own business, offering great feedback on an almost weekly basis.

Keith RobertsCOO/CTO, SquadLocker, USA

Selleo’s outstanding price point, ability to meet all deadlines, and willingness to assimilate with the in-house staff created a more efficient workflow.

Steve CornwellCEO, Northpass, USA

They really assimilated directly into our process. Through Selleo’s consistent supplementation, the integrated workforce completed tasks faster and with improved accuracy.

Steve CornwellCEO, Northpass, USA

We were incredibly satisfied with their work. They delivered to the highest level of quality.

Steve CornwellCEO, Northpass, USA

Selleo used daily communication to keep the project in check. Their company culture clearly nurtured an energetic and informal working environment.

Jamie EngelFounder, Neutopia, AU

Before starting the project I had heard stories of some of the challenges of building software, but I’m happy to say the process of building the platform with my team at Selleo has been excellent and very enjoyable

Jamie EngelFounder, Neutopia, AU

What sets Selleo apart is the enthusiasm and care taken on the project beyond scope. The guys are really into the project and I know they really care about it’s success.

Jamie EngelFounder, Neutopia, AU

We’ve never encountered a language barrier; all interactions and documents are done in English. They’re interested in our feedback, proactively finding ways to improve.

CTOInternational Business Consultancy

As a central selling point, the product attracts new clients and increases sales. Selleo's suggestions are extremely valuable, making them a cornerstone of our product development.

CTOInternational Business Consultancy

We collaborate to define the best strategies for our product’s technical architecture, implementation plans, and development processes.

CTOInternational Business Consultancy

Their developers not only provide basic coding services, but they also participate in code reviews and offer feedback.

CTOInternational Business Consultancy

Selleo developers have a wide range of interests, extending their knowledge to improve different elements of my busines

CTOInternational Business Consultancy

Selleo delivered a reliable product that’s still being used today. Compared to other vendors, the team stands out for their involved collaborative skills and seamless workflow.

Dennis GneussCDO, Movinga, DE

With Selleo, the entire development process was quite open and lean. Overall, it was a transparent and productive engagement.

Dennis GneussCDO, Movinga, DE

Selleo has been a team that has proven they're dedicated to completing innovative projects and offering useful direction for our software.

Kristoffer PerssonFounder, Humly SE

The team works hard, writing good code and completing all work punctually and to a high standard.

Kristoffer PerssonFounder, Humly SE

They are able to work on their own initiative and take responsibility for their tasks.

Kristoffer PerssonFounder, Humly SE

The majority speaks English well, and they would tell me if I’m speaking too fast or if something isn’t clear. This is valuable for us since communication is key in dealing with different time frames.

Dru JensenSenior Lead Engineer at ASCEND HIT, USA

I’ve been quite impressed with Selleo’s work — they built a beautiful product with outstanding code. The app has received a lot of accolades from the industry during conference demos.

Dru JensenSenior Lead Engineer at ASCEND HIT, USA

For a project of this magnitude, things are going smoothly from a development and management perspective. Selleo’s team is professional, and they follow our timelines.

Dru JensenSenior Lead Engineer at ASCEND HIT, USA

Selleo takes care of any issues along the way. They want to fix the product and code in order to have the highest-quality product.

Dru JensenSenior Lead Engineer at ASCEND HIT, USA

They’re good at communicating and careful when setting expectations. It’s important to have trust between partners, and they’re open enough for that to cultivate.

Peter LancasterCEO, BrandActif, UK

Selleo has built some amazing things as of late. This platform is the first of its kind and we have been attracting some giant corporations to partner with.

Peter LancasterCEO, BrandActif, UK

I rely on them heavily from a project management standpoint. Selleo works methodically and correctly, rarely making mistakes. They don’t overpromise, in fact, they probably overdeliver—and that’s a good thing.

Peter LancasterCEO, BrandActif, UK

Selleo doesn’t just code, they understand what they’re coding and what the commercial implications could be.

Peter LancasterCEO, BrandActif, UK

It helps to have a team that understands the commerciality behind what we’re trying to do.

Peter LancasterCEO, BrandActif, UK

They’re well-versed across the team, and they communicate well and listen to feedback.

Rob AndersonCTO & Co-Founder, B4B Payments UK

They help us maintain our existing large code base and built some standalone new systems that we needed to build for clients.

Rob AndersonCTO & Co-Founder, B4B Payments UK

They’re well-managed as a team and very inclusive. I was impressed by their professionalism.

Rob AndersonCTO & Co-Founder, B4B Payments UK

I was very impressed with the quality of the frontend work they did, their professionalism, and their organization.

Rob AndersonCTO & Co-Founder, B4B Payments UK

Selleo came in and rescued the project and saved the day. Then, when the pandemic hit, they helped us pivot and worked with us. We're now in good shape when it seemed like we would never finish the project before.

Chris MitchellCEO, Better Off Social, USA

Selleo treated us like an intelligent partner. Instead of telling us exactly what we wanted to hear while staying vague, they dove into the problem and invested time figuring out how we'd solve it, what the problems were, etc.

Chris MitchellCEO, Better Off Social, USA

Selleo's reliable, flexible approach differentiates them from other partners. Rather than producing a generic project plan, they crafted one that fit our unique needs.

Chris MitchellCEO, Better Off Social, USA

Selleo has been an outstanding technology partner over the full life cycle of one of our key product developments.

Jeffrey SobleM.D. CEO ASCEND, USA

Selleo has exceeded our expectations for professional and competent web and mobile software development. They have been helpful in every phase of the development process.

Jeffrey SobleM.D. CEO ASCEND, USA

They work seamlessly with our internal team, and are adept at understanding our business, and technology objectives.

Jeffrey SobleM.D. CEO ASCEND, USA

Selleo is quite flexible and adapted to our needs whenever necessary They're supportive and always help to find the most cost-effective solution to our problems.

Thomas FortmannCSO Alpaca Space, DE

They make everything easier on our side by taking on so many of the technical burdens. We value their opinion, and they respond by going the extra mile to optimize our product.

Tom SmithCPO, Battleriff Gaming AB, SE

Selleo industry experience and technical skill allow them to not only implement specifications but make critical product optimizations.

Tom SmithCPO, Battleriff Gaming AB, SE

Selleo understands our expectations at the beginning of every sprint and plan their work to ensure it's in alignment with ours. Customers can expect a knowledgeable, productive partner.

Tom SmithCPO, Battleriff Gaming AB, SE

We’ve developed a significant amount of trust in Selleo, that they can deliver the velocity and quality we need.

Tom SmithCPO, Battleriff Gaming AB, SE

Their team worked diligently to provide a solution that runs effectively. We can now ship our products faster and demonstrate our ability to execute quickly.

Manuel ReilCo-Founder, Alyne DE

They are very flexible dedicated team, integrating easily with our own team, processes and flows.

Manuel ReilCo-Founder, Alyne DE

Selleo is organized and communicative, maintaining regular contact to provide project updates. They’re trustworthy and eager to improve.

Timo YorkProduct Delivery Lead at ADV, UK

What I like most about Selleo is team engagement, transparency, access to resources, quality of code, eagerness to deliver value.

Timo YorkProduct Delivery Lead at ADV, UK

Selleo has been a trusted partner, always willing to get involved and help resolve the most complex of issues.

Timo YorkProduct Delivery Lead at ADV, UK

The quality of the coding and general work done has been very high. The products have minimal bugs, and I’m happy with the quality of their work.

Timo YorkProduct Delivery Lead at ADV, UK

They’re trustworthy and want the best for our organization. They’re eager for feedback and take it seriously, changing their workflow to meet expectations.

Timo YorkProduct Delivery Lead at ADV, UK

They don’t need to be managed externally thus saving a lot of time for us. From their communication to development, Selleo represents a top-level company.

Piet NeirinckCEO & Founder, 9Teams, BE

Selleo was able to present complex technical challenges in the user-friendly way.They’re a team of great professionals, responsible and proactive which always delivering the software on time.

Piet NeirinckCEO & Founder, 9Teams, BE

Selleo advocated to follow the rules and principle of Agile methodology. We decided Scrum to be the best solution with Scrum Master on their side and me in the role of a Product Owner.

Piet NeirinckCEO & Founder, 9Teams, BE

Selleo depends on testing heavily and boosts code quality to the highest standards. The team's strong work incentive, high standards, and quality code tests make them invaluable.

Piet NeirinckCEO & Founder, 9Teams, BE

I really enjoyed their engagement, proactiveness in helping me to develop product backlog, and caring about the business success as if it was their own project.

Piet NeirinckCEO & Founder, 9Teams, BE

Selleo team working half way around the world, were always professional and surprisingly responsive. Their pairing system was instrumental in ensuring continuity over a project spanning 2 years.

Scott FrostCEO, American Funding Innovators, Inc., USA