About DTT
DTT is leading software development company in Netherlands. They work on a comprehensive combination of technology, strategy, and creativity with enthusiasm. They are result-oriented in their opinions and they take the aim of their clients. They know that a lot of clients lack knowledge about technology, a knowledge that is of significance in the decision-making method.
Last updated May 13, 2026
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DTT Reviews
Write a ReviewSecurity posture transformed from a known liability to a competitive differentiator
Nora Al-Otaibi / VP of Engineering - Salam Digital SolutionsMay 28, 2026
Project summary: Rapid growth had created a skills gap on the platform engineering side of our business. We needed an experienced partner to close that gap while our internal team scaled, without compromising quality or timeline.
We gave this team an aggressive timeline, a technically complex scope, and a client-side project team that was stretched thin and not always available at the speed the engagement required. They absorbed all of that gracefully. Where they needed input they were precise about what they needed and when. Where they could proceed independently they did. The result was a delivery that landed on time despite the constraints on our side, which I regard as evidence of genuine professional maturity.
Senior-level engineering presence throughout the entire project, not just during the pitch, honest and commercially fair handling of scope changes, codebase that our internal team praised on review
Pipeline availability for kickoff required a few weeks of lead time — in hindsight that selection pressure means you are working with a team that is in demand for the right reasons
Questions & Answers
A development partner who treated our roadmap as carefully as their own
Zofia Kamińska / CTO - Odra Tech StudioMay 12, 2026
Project summary: Unplanned downtime had become our single largest cost driver and our data showed that predictive maintenance could address the majority of it — if we had the right infrastructure to act on it.
What made the most difference in practice was the quality of the engineering judgment on this team. Not the ability to execute a specification — that is a baseline expectation. The ability to recognise when a specification was suboptimal, explain why, propose an alternative, and support the client in making a decision about it. That consultative dimension elevated the output beyond what the brief described and resulted in a product that is more fit for purpose than the one we had originally specified.
Clear and consistent communication adapted appropriately for both technical and non-technical stakeholders, shared tooling that gave our team real-time visibility, reliable sprint delivery throughout
The engagement was priced at the quality level rather than the budget level. We evaluated the alternatives and concluded that the delta was a reasonable premium for the reduction in delivery risk
Questions & Answers
Managed IT that made our internal teams forget infrastructure was something they once worried about
Aoife Brennan / VP of Product Engineering - Emerald Digital LtdMar 31, 2026
Project summary: Serialisation requirements under new traceability legislation had a compliance deadline. Our supply chain system required targeted development to meet it — generalist knowledge was not sufficient.
I came into this engagement as a sceptic. We had been through a failed implementation with a previous vendor and I had high standards for what evidence of competence looked like before I would trust a partner with our core systems. This team earned that trust progressively — through the quality of the discovery documentation, the rigour of the technical proposals, the consistency of the sprint deliveries, and ultimately the stability of the production system. I no longer lead with scepticism when recommending them.
Architectural decisions designed for longevity rather than just the current brief, thorough automated test coverage, post-launch stability that validated every technical choice made during discovery
Their discovery process is more rigorous than we were accustomed to and required more preparation from our side than we had initially allocated — but the quality of what followed justified every hour of it
Questions & Answers
Professional team that delivers excellence every time
Michelle Garcia / Director of IT - HealthSystems CorpMar 24, 2026
Project summary: We set out to build an engaging e-learning platform that could serve thousands of students simultaneously.
From the discovery workshop to the final handover, the experience was seamless. The team invested real effort in understanding our business goals before writing a single line of code, and that foundation paid dividends throughout. Every milestone was hit, every deliverable was polished, and the few issues that arose were resolved before we even had to ask. The solution has already delivered measurable ROI and we are planning our next engagement with them.
Deep technical expertise, professional project management, responsive support, great value
None — every aspect of the engagement exceeded our expectations
Questions & Answers
Seamless cloud migration with zero downtime
Sophie Dubois / Innovation Lead - French Digital SARLApr 30, 2024
Project summary: The project demanded deep technical expertise and a thorough understanding of our business domain.
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.
Proactive risk management, domain expertise, fast turnaround on feedback, genuinely invested in our success
Minor timezone overlap challenges early on, resolved quickly with async communication
Questions & Answers
Best technology partner we have ever worked with
Robert Martinez / Operations Manager - Solutions GroupJun 27, 2022
Project summary: Our hospitality group required a guest experience platform integrating PMS, CRM, and loyalty programmes.
From the discovery workshop to the final handover, the experience was seamless. The team invested real effort in understanding our business goals before writing a single line of code, and that foundation paid dividends throughout. Every milestone was hit, every deliverable was polished, and the few issues that arose were resolved before we even had to ask. The solution has already delivered measurable ROI and we are planning our next engagement with them.
Deep technical expertise, professional project management, responsive support, great value
None — every aspect of the engagement exceeded our expectations
Questions & Answers
Exceeded all expectations — highly recommended
James Wilson / IT Director - Enterprise SystemsMay 06, 2022
Project summary: The project demanded deep technical expertise and a thorough understanding of our business domain.
From the discovery workshop to the final handover, the experience was seamless. The team invested real effort in understanding our business goals before writing a single line of code, and that foundation paid dividends throughout. Every milestone was hit, every deliverable was polished, and the few issues that arose were resolved before we even had to ask. The solution has already delivered measurable ROI and we are planning our next engagement with them.
Innovative thinking, meticulous attention to detail, reliable delivery, transparent reporting
Slightly higher day rate than some alternatives, but the quality justifies every penny