We Build Mobile Apps
That Solve Hard Problems
When the challenge is complex — field safety, hardware integration, scientific data collection, or systems that need to work without a manual — we’re the team that R&D organizations, researchers, and funded innovators call.
Where we specialize
Thirty years of building software that works — in the field, in the clinic, in the lab, and everywhere in between.
Software That Needs No Manual
From home health nurses and motorsport scoring crews to field workers and medical students, our software fits the natural flow of the task — not the other way around. Whatever the user needs to do, the app gets out of the way and lets them do it. Seamlessly and elegantly.
Systems Architecture & Design
Before we write a line of code, we make sure we understand the problem — really understand it. From there we work in close collaboration with you, iteratively, making smart technology choices along the way. We also selectively apply AI-assisted development, which means our seasoned team can deliver more without cutting corners.
Hardware/Software Integration
From Bluetooth gantry controllers and GPR antennas to Crestron smart home systems and OBD-II vehicle adapters, we’ve integrated mobile apps with complex hardware across dozens of projects. If it has a wireless interface, chances are we’ve worked with something like it.
Work we’re proud of
We can’t always name the client. But we can describe what we built — and the problem it solved.
Energy Hazard Assessment Tool
A field safety app for utility workers to identify, assess, and mitigate energy hazards before starting a job. Covers gravity, electrical, pressure, motion, and mechanical hazards — with GPS logging, severity calculations, and exportable assessment reports.
Source: The Electric Power Research Institute, Inc. Used with permission.
Field Safety Briefing App
We developed a proof-of-concept tailboard briefing app with a task force of seven utilities, then built and successfully piloted the production app with a major Northeast utility’s field crews — guiding workers through PPE checklists, hazard identification, geolocation verification, and crew sign-off.
alertTech — Real-Time Home Monitoring
A real-time monitoring and alert iOS app for Crestron smart home integrators. Lock-screen push notifications, in-app messaging between homeowners and integrators, running event logs, and support for clients with multiple properties worldwide.
Tree Root Analysis System
User workflow software for a novel GPR-based tree root scanning system — integrating a tablet app with Bluetooth gantry hardware, a WiFi GPR antenna, cloud-based AI analysis, and 3D image reconstruction.
We’re not an IT shop.
We’re problem solvers.
Green Mountain System Works is a small, senior team of mobile software specialists based in Vermont. We combine deep technical expertise with a structured discovery process — so we understand your problem fully before we write a line of code.
We work best with clients who have a real, funded challenge and need a trusted partner to think it through, architect a solution, and build something that actually works.
Every engagement begins with a structured discovery phase. We ask hard questions before recommending solutions.
Every person on your project has decades of relevant experience — and the perspective to avoid the pitfalls.
Most of our clients have been with us across multiple projects. We’re in it for the long run. That’s not an accident.
We’re an approved GSA vendor and proud member of the Vermont Technology Alliance.
Let’s talk about your project.
We work with a small number of clients each year. If you have a complex mobile or field technology challenge and you’re looking for a team that will take it as seriously as you do — we’d like to hear about it.
Start a conversation