We solve complex protocol integration, performance, and reliability challenges for our clients
Software Development
We build solutions for our clients in C/C++, Java, and .NET. Our Rust-based libraries provide a robust foundation, but we deliver in whatever language your project requires.
Security & Reliability
Our software prevents buffer overflows, memory leaks, and race conditions that plague embedded software. Our libraries run 24/7 in production control systems with zero tolerance for failure.
Protocols
We've spent over a decade developing DNP3, Modbus, and other protocols used worldwide. Our OpenDNP3 library alone has hundreds of users and powers critical infrastructure globally.
Electric Power Systems
With over a decade of exclusive focus on electric power systems, we understand the unique challenges of distribution automation, demand response, and distributed energy resources better than generalist firms.
Scalable Architecture
Our designs scale up to handle thousands of concurrent connections on powerful hardware, and scale down to run efficiently on resource-constrained embedded Linux systems.
Quality Assurance
Effective testing strategies require deep domain knowledge and years of experience finding edge cases. We help you build robust test suites that catch real-world failures before they reach production.
What can we help you with?
What Others Are Saying
Don't just take it from us. Ask around. We've been working on software and security projects in electric power for over a decade.
"Adam is consistently leading the field on design and testing of industrial protocols and the latest development tool set innovations. Tech from Step Function I/O is a smart bet."
Bryan Owen, Security Architect, OSIsoft LLC
"Adam and the experts at Step Function I/O are more than just leaders in the industrial reliability and security space, they are renowned practitioners."
Ronnie Fabela, Co-Founder, SynSaber
“At EPRI, we have built a number of protocol drivers and device simulators for DER applications that use the OpenDNP3 library. We are very impressed by the high-quality library and documentation.”
Jithendar Anandan, Smart Grid Developer, EPRI