DevStack

Based in Leeds, DevStack is a small team of senior software engineers, sized between one and ten people, working with UK businesses that need custom software built, modernised or recovered. The team positions itself around direct client contact with experienced engineers rather than junior delivery staff, stating that all delivery is handled in-house without offshore outsourcing. Client projects range from new product builds to stabilising legacy systems and taking over software projects that have stalled or become fragile. Core services include custom software development, MVP and product builds, legacy modernisation, software rescue and technical consultancy, alongside mobile app development and applied AI and automation work tied to specific business problems. Specialist support is offered for Stripe payment integrations and Umbraco content platforms. Alongside development work, the agency lists search engine optimisation, content marketing, conversion optimisation and digital strategy among its services. Its stated working method follows four stages: understanding the commercial goal and constraints, agreeing the smallest workable route forward, delivering in short reviewable stages with regular demonstrations, and improving through measurement after launch. The company describes using AI-assisted tools to speed up research, prototyping, implementation, testing and documentation, while keeping experienced engineers accountable for what is released. Engagements are framed around commercial outcomes, with an emphasis on maintainability, security and support beyond initial launch rather than one-off delivery.