We build the software that powers your product — and help you build the company behind it.
Software studio & startup partner · Boulder, Colorado
Legacy Developers is a Boulder-based software studio and startup partner. We design and engineer custom web and mobile applications end to end, and we help founders turn early ideas into real, fundable companies. Whether you need a product built or a company built around it, we bring product thinking, senior engineering, and startup experience to every engagement.
We build custom web and mobile applications from end to end — UX and UI design, front-end and back-end engineering, and native iOS and Android development. From the first wireframe to production release and ongoing post-launch support, we own the full lifecycle so you ship polished, reliable software your users trust.
We help founders build the company, not just the code. We work alongside you to shape the product, stand up the core technology, and map the path from idea to launch — refining the concept, validating direction, and building the foundation you need to raise, hire, and grow. When you work with us, you get a partner invested in the business behind the product.
Legacy Developers was founded on a simple belief: the best products and the best companies are built together. Too often, great ideas stall because the product and the business behind it are treated as separate problems. We bring them together. Based in Boulder, Colorado, we partner with founders and teams who want more than a contractor — they want a team that cares about the outcome, builds with craft, and stays for the long run. Our goal is to help you create something that lasts: software built to endure, and a company built to grow.
From first concept to launch and beyond, we handle design, engineering, and everything in between — one accountable team, no handoffs.
We think like partners, not vendors. Your goals shape every technical decision we make.
We write maintainable code and build durable foundations, so what we deliver keeps working long after launch.
Have an idea, a product, or a company you want to build? Tell us what you're working on and we'll get back to you.
Boulder, Colorado