DOOR3

DOOR3 is an independent technology consultancy and software development firm founded in 2002 and headquartered in New York City, with offices in Kyiv, Barcelona, and Zurich. The company partners with enterprises, startups, nonprofits, and other organizations to modernize systems, improve operations, and turn technology initiatives into business outcomes. Its services span technology consulting, discovery, digital strategy, executive technology leadership, and project management.

DOOR3 designs and develops custom software, mobile applications, portals, and integrated data platforms, and can help recover stalled or underperforming projects. Its design and UX work includes user research, interface design, design systems, usability audits, testing, and solution validation. The firm also offers AI strategy and implementation, including agentic AI, custom models, machine learning, data science, automation, and AI solutions for legal and insurance workflows.

DOOR3 emphasizes a collaborative, consultative approach and delivery on time and on budget. Its showcased projects include a mobile delivery app for Leon Market, a data-visualization dashboard for PepsiCo, and digital products for organizations in education and healthcare