DOOR3 is an independent technology consultancy and custom software development firm founded in 2002. Headquartered in New York City with offices in London and Kyiv, they partner with organizations ranging from startups to Fortune 500 companies to design and build technology that drives business growth, enhances user experiences, and solves complex challenges. Their core services include digital strategy, UX/UI design, custom web and mobile application development, data analytics, AI solutions, and technology consulting. DOOR3 emphasizes a collaborative approach, working closely with clients to understand their unique needs and deliver tailored, future-proof technology solutions with a focus on tangible business value and exceptional craftsmanship.
The New York headquarters serves as the nerve center for door3's global operations, housing key leadership, strategy, design, project management, and core engineering teams. It's the primary hub for client engagement and innovation initiatives in North America.
Situated in a classic Tribeca loft-style building, the office likely features an open, collaborative workspace designed to foster creativity and teamwork. The neighborhood is known for its historic architecture, cobblestone streets, and artistic ambiance.
door3 cultivates a work culture centered on collaboration, continuous learning, problem-solving, and innovation. Employees often highlight the supportive team environment, opportunities to work on diverse and impactful projects, and a management style that encourages professional growth and autonomy.
The New York City headquarters is crucial for door3's access to a rich talent pool, its proximity to major clients across various industries, and its position within one of the world's leading technology and business ecosystems.
door3 maintains a strategic global presence with key offices in New York (USA), London (UK), and Kyiv (Ukraine). This international footprint enables them to serve a diverse global clientele, offer localized support, access varied talent pools, and manage projects across different time zones. Their global operations support a full range of services, including digital strategy, user experience design, custom software engineering, and data analytics, for clients across North America, Europe, and beyond.
12 Desbrosses Street, Floor 3
New York
NY
USA
Address: Kemp House, 160 City Road, London, EC1V 2NX, UK
To expand door3's footprint in the European market, address the specific needs of regional clients, and leverage the diverse tech talent pool available in London and across Europe.
Address: Simi Prakhovykh St, 50, Kyiv, Ukraine, 01033
To access a highly skilled engineering talent pool for developing robust, scalable software solutions, thereby enhancing door3's global service delivery capabilities and cost-effectiveness.
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As of April 2025, DOOR3' leadership includes:
DOOR3 has been backed by several prominent investors over the years, including:
Based on publicly available information, there have been no major C-suite or VP-level executive hires or departures announced at door3 in the last 12 months, suggesting a period of leadership stability. The existing executive team continues to guide the company's strategic initiatives and growth.
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door3 commonly uses an email format that combines the first initial of an employee's first name with their full last name, followed by '@door3.com'. While this is the predominant pattern, other formats might exist in isolated cases.
flast@door3.com (e.g., jsmith@door3.com)
Format
aasianov@door3.com
Example
85%
Success rate
door3 Blog • March 12, 2024
door3 published an insightful article on their company blog exploring the transformative impact of Generative AI on software development processes, outlining new opportunities and challenges for the industry....more
Clutch.co • November 7, 2023
Client reviews and ratings on Clutch.co continue to highlight door3's expertise in custom software development, UX/UI design, and project management, reinforcing their reputation as a leading B2B service provider in the technology sector....more
door3 Website • September 20, 2023
door3 updated its portfolio with a new case study detailing a successful digital transformation project for a client in the financial services industry, highlighting improved efficiency and customer engagement....more
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