About DD9
DD9 is a professional branding, web design and web development company based in Boulder, Colorado. For more than 15 years, they have offered a broad spectrum of creative, visual and internet-based design and development services to local and national businesses and organizations. They are dedicated to providing maximum benefit to their clients to help them succeed in a constantly changing and challenging the business world.
Last updated May 13, 2026
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DD9 Reviews
Write a ReviewA team that understood the difference between AI that demos well and AI that runs in prod
Flynn Buchanan / GM of Technology - Pacific Rim Commerce GroupJun 07, 2026
Project summary: Dynamic pricing had been a manual process for years. We knew the revenue management opportunity was significant but lacked the technical capability to build the models and connect them to our booking engine.
We had worked with three agencies before this engagement. The comparison is not flattering to the others. What distinguished this team was a systematic approach to understanding the problem before proposing a solution — something that sounds obvious and is practiced far less often than it should be. The delivery phase ran to schedule, the codebase is clean enough that our internal engineers made positive comments during handover review, and we have not logged a critical incident in five months of live operation. We intend to use them for our next phase of work.
Commercially transparent throughout — no hidden assumptions, no bill shock at the end, change requests that were fair and clearly explained rather than used as a margin-recovery mechanism
Their insistence on a detailed functional specification before development began felt like friction at the time. In retrospect, it was the reason the development phase ran without the ambiguity that has derailed similar projects for us previously
Questions & Answers
Smart infrastructure project that paid back the investment in under two quarters
Sabrina Vollmer / Chief Innovation Officer - Rheintal Digital AGApr 22, 2026
Project summary: A previous engagement had delivered something that worked in staging and struggled in production. We approached this project with greater rigour in vendor selection as a result.
The integration layer was the part of the project I was most concerned about going in. Our system landscape is complex, several of the upstream APIs we relied on were poorly documented, and two third-party vendors had a history of unpredictable response times on integration questions. This team managed all of that. They documented what the upstream vendors could not, built resilience into the integration architecture where the upstream behaviour was unreliable, and delivered a solution that works as specified in production. I could not have asked for more.
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
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
A team that understood the difference between AI that demos well and AI that runs in prod
Dominic Fairfax / Head of Digital Transformation - Arcadian Consulting LtdMar 12, 2026
Project summary: Several years of incremental development had left us with a platform that was technically functional but strategically limiting. A structured rebuild was the agreed path forward.
The technical quality of the final deliverable is the easiest thing to point to. The automated test coverage is thorough, the deployment pipeline is reliable, the documentation is genuinely useful rather than ceremonially produced. But the metric I keep returning to is the number of post-launch conversations we have not had to have. No incident calls at two in the morning. No emergency patches. No retrospective discussions about what went wrong. The absence of those events is the evidence I would show to someone considering this vendor.
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
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
SEO work that moved our primary keywords from page two to position three in five months
Lars Pfeiffer / VP of Technology - NordTech Logistik GmbHFeb 28, 2026
Project summary: Our internal product thinking was strong but our execution capability in this specific technology domain was limited. We needed depth, not generalism.
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.
Production system that has performed as specified since go-live without remediation work, documentation thorough enough to support internal maintenance, knowledge transfer that left our team genuinely capable
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
Finance and operations now work from identical numbers — the value of that cannot be overstated
Reuben Loh / CTO - Marina Bay Ventures Pte LtdFeb 13, 2026
Project summary: Several years of incremental development had left us with a platform that was technically functional but strategically limiting. A structured rebuild was the agreed path forward.
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
We underestimated the input required from our subject matter experts during the requirements phase. The team flagged this early but our resource planning did not fully reflect it — our responsibility, not theirs
Questions & Answers
Truly impressed with their expertise and commitment
William Brown / Senior Consultant - Brown ConsultingFeb 13, 2025
Project summary: We required a customer self-service portal and billing system to reduce support load and improve satisfaction.
The team demonstrated exceptional technical depth throughout every phase of the project. Communication was proactive and transparent — we always knew exactly where things stood. They challenged our assumptions constructively and suggested improvements that made the final product significantly better than our original spec. Delivery was on schedule, the code quality was outstanding, and post-launch support has been prompt and thorough. We could not have asked for a better partner.
Outstanding code quality, thorough documentation, smooth knowledge transfer, excellent post-launch support
Slightly higher day rate than some alternatives, but the quality justifies every penny
Questions & Answers
Professional team that delivers excellence every time
Nathan Clarke / Investment Director - UK Ventures LtdJun 20, 2024
Project summary: Our company needed a reliable technology partner to deliver a complex project within a tight timeline.
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.
Strong engineering skills, clear and consistent communication, flexible and collaborative approach
Minor timezone overlap challenges early on, resolved quickly with async communication
Questions & Answers
AI integration that genuinely transformed our operations
David Chen / VP of Engineering - Global Tech IncDec 08, 2022
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.
Strong engineering skills, clear and consistent communication, flexible and collaborative approach
Initial onboarding took a couple of extra days, but the team hit full stride very quickly