verification-and-validation
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The Realtime Group makes the awkward parts work
A medical device can work perfectly on a bench and still bewilder its user. This Plano engineering firm builds for the messier test: people, production, and proof.
Flow Engineering
Flow Engineering builds an AI-native requirements and systems-engineering platform that lets complex hardware teams design, build, test, and iterate at software speed. At its core is a connected 'systems graph' that keeps requirements, CAD, code, simulations, tests, and certification artifacts in one live system of record - with AI agents running impact analysis and keeping everything aligned. Founded by mechanical engineer Pari Singh, Flow is used by companies like Rivian, Joby Aviation, Astranis, Stoke Space, and Figure, and raised a $23M Series A led by Sequoia in October 2025.
Istari Digital
Istari Digital is a Cambridge, Massachusetts software company building a digital engineering platform that connects fragmented engineering data - models, simulations, requirements and test artifacts - across teams, suppliers and classified environments. Founded in 2022 by former Air Force acquisition chief Will Roper, the company aims to let regulated industries like aerospace and defense validate, secure and certify complex systems in minutes instead of months. Its flagship effort, Flyer One, is working with the U.S. Air Force Research Laboratory and Lockheed Martin Skunk Works to make a modified X-56A the world's first digitally certified aircraft.