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Overall Review Rating

4.2 (5 Ratings)

Quality 4.0/5
Schedule 4.2/5
Cost 4.0/5
Communication 4.3/5

Overview

DOOR3 is a skilled, creative team of people passionate — maybe even obsessed — with making digital experiences better. They join forces to create solutions that empower users, engage consumers, elevate brands, and enhance businesses. They believe in building strong relationships, empathizing with your goals, and working together to create unprecedented experiences.

founded
Founded 2002
employees
Employees 50 - 249
hourly rates
Hourly Rates N/A
our ratings
Ratings 4.2/5
contact
Contact +16463510012

Services

  • Mobile App Development
  • E-Commerce
  • MongoDB Development
  • Cross Platform Development
  • iOS App Development
  • Market Research
  • Web Development
  • Private Blockchains
  • Enterprise App Development
  • Ionic App Development
  • Hyperledger
  • Android App Development

Industries Served

Automotive Education Fashion & Apparel Information Technology Media & Entertainment

DOOR3 Reviews

Have a look at these client reviews on previously delivered projects.

Maja Söderström

Head of Product Engineering - Scandia Digital AB
Posted on Mar 28, 2026
4.0 Overall Rating

Delivered what the proposal described. More rare than it should be.

Honestly, I came into this engagement with some scepticism. We had a bad experience with a vendor twelve months earlier and I wanted to see evidence of competence, not just hear about it. The discovery documentation was the first signal. The sprint delivery consistency was the second. By go-live I had stopped being sceptical and started planning how to expand the engagement. The production system has been stable from day one and our internal team loves working with the codebase they left us.

Project summary

The EV transition had created dealer network management requirements our existing DMS was not designed for. A targeted rebuild was the only path forward that timeline would allow.

Quality 4.5/5
Schedule 4.0/5
Cost 4.0/5
Communication 4.0/5
project type
Project Type Low-Code / No-Code Development
industry
Industry Automotive
project cost
Project Cost $500,000+
Read Full Review

Takashi Morimoto

Director of IT Strategy - Sakura Digital KK
Posted on Dec 15, 2025
4.0 Overall Rating

Observability stack that caught three production issues before any user reported them

We went with a smaller team than we had originally planned for. I had concerns about whether the capacity would be sufficient given our timeline. Those concerns were unfounded. The team was focused, communication was constant, and the quality at each milestone review was consistent throughout. Smaller does not mean slower when the people are the right ones and this engagement proved that.

Project summary

We hit a skills gap in platform engineering just as our growth required us to move faster. Recruiting took too long. We needed an experienced external team to bridge the gap while we scaled.

Quality 4.0/5
Schedule 3.5/5
Cost 4.0/5
Communication 4.0/5
project type
Project Type DevOps Services
industry
Industry Information Technology
project cost
Project Cost $150,000 to $499,999
Read Full Review

Giulia Conti

Product Manager - Colosseum Digital Srl
Posted on Nov 05, 2025
4.5 Overall Rating

The outcome we needed, on the timeline we needed it, by people we would use again

I have been through several technology implementations in my career. The pattern I am used to is: detailed proposal, optimistic timeline, scope creep, overrun, excuses at the end. This engagement broke that pattern at every stage. The timeline was realistic from the start. Changes were managed through process. The final delivery matched what was agreed. Simple, but uncommon.

Project summary

Accreditation requirements had raised the bar on how we needed to document and track student progress. Our existing tools were not capable of meeting the new reporting standards.

Quality 4.0/5
Schedule 4.5/5
Cost 4.0/5
Communication 4.5/5
project type
Project Type Embedded Systems Development
industry
Industry Education
project cost
Project Cost Less than $10,000
Read Full Review

Lachlan Vickers

Co-Founder - Ironbark Software Pty Ltd
Posted on Dec 04, 2024
4.5 Overall Rating

First QA engagement where the team found bugs before the client did. Consistently.

The part of this project I had been most worried about was the integration work. Our system landscape is complex, some of the upstream APIs were barely documented, and one of our third-party vendors was notoriously slow to respond. This team documented what the upstream vendors could not, built resilience into the architecture where third-party reliability was uncertain, and delivered integrations that have worked exactly as specified since day one. I genuinely could not have asked for more.

Project summary

Streaming quality issues were generating subscriber churn at a rate that made the technical investment case straightforward to approve.

Quality 4.0/5
Schedule 5.0/5
Cost 4.0/5
Communication 4.5/5
project type
Project Type Quality Assurance & Testing
industry
Industry Media & Entertainment
project cost
Project Cost $500,000+
Read Full Review

Niamh O'Sullivan

Director of Product - Munster Digital Ltd
Posted on Aug 10, 2022
4.0 Overall Rating

Architecture review that saved us from a vendor decision we would have regretted

The part of this project I had been most worried about was the integration work. Our system landscape is complex, some of the upstream APIs were barely documented, and one of our third-party vendors was notoriously slow to respond. This team documented what the upstream vendors could not, built resilience into the architecture where third-party reliability was uncertain, and delivered integrations that have worked exactly as specified since day one. I genuinely could not have asked for more.

Project summary

Our internal team was committed to maintenance and could not absorb a new build of this complexity. An external partner was the only way to hit the timeline.

Quality 3.5/5
Schedule 4.0/5
Cost 4.0/5
Communication 4.5/5
project type
Project Type IT Consulting
industry
Industry Fashion & Apparel
project cost
Project Cost $150,000 to $499,999
Read Full Review
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