What Our Partners Say
A closer look at how our collaboration helped this company achieve meaningful results.
Johnson Controls had a mature hardware platform and software suite for industrial refrigeration control systems, but the software was out of date and required modernization. They engaged an external partner and turned to Limestone Digital for first-class technical support. The collaboration focused on building software for real industrial environments, where quality, security, and reliability are critical due to operational and human risks. Limestone maintained high standards through structured processes and delivered a product that meets their exact needs and can be inserted directly into their production process path with minimal effort — helping the company move forward and continue development.
Engagement overview
The engagement involved close collaboration with a small internal team, where Limestone Digital contributed not only to development but also to defining detailed requirements and refining the existing system. This included working with an existing codebase and ensuring correct interaction with hardware. The delivery approach evolved over time — starting with a tailored process and gradually transitioning to agile as the client’s internal capabilities matured. Throughout the project, the team adapted to personnel changes and organizational shifts, maintaining continuity and supporting long-term product development.
Highlights
Working With the Team
Limestone worked with the existing codebase and helped refine detailed requirements so the product could interface properly with the hardware, helping a small, stretched team get the project off to a strong start.
Communication & Delivery Model
The team introduced an adaptable approach, starting with a tailored process and later transitioning to full agile as the client became more experienced.
Positive Surprise
The biggest surprise was how easy it was to move forward, with Limestone doing the heavy lifting. Despite changes and challenges, the team adapted quickly and kept progress on track
Who This Partnership Is For
Relevant for smaller teams building products that require strong infrastructure, security, and integration with existing systems.
About the client — Johnson Controls
Johnson Controls International is a global leader in smart, healthy, and sustainable building technologies and industrial control systems. Through its industrial refrigeration and controls solutions, the company operates software-driven platforms where reliability, safety, and operational precision are essential.

The biggest surprise was how easy it was to move forward, with Limestone doing the heavy lifting. Despite changes and challenges, the team adapted quickly and kept progress on track.
— Paul Valentine, Johnson Controls

