About Durridge
Durridge is a leading provider of professional radon detection equipment. Since 1997, Durridge has offered world-class radon detection solutions for businesses, universities, and governments worldwide. Our RAD8 and RAD7 continuous radon gas monitors feature precise measurement far exceeding EPA accuracy standards. Durridge also provides a wide range of accessories for the RAD8 and RAD7, as well as Capture software for performing sophisticated radon data analysis, and expert calibration and maintenance services.
The RAD7 electronic radon detector was invented by Professor Lee Grodzins when he was head of the radon program at the Massachusetts Institute of Technology. Durridge was formed in 1997 to take over production and support of the RAD7. Since then the RAD7 has continued in uninterrupted production and development, becoming an industry standard for research and professional applications. Today thousands of RAD7s are deployed worldwide, and the all-new RAD8 reimagines scientific-quality electronic radon monitors with complete top-to-bottom upgrades.
Ronda Wang
Chief Operating Officer
Ronda is responsible for a wide variety of operations, including Administration, Accounts, Finance, HR/Personnel, Production, and Customer Support. She also participates in Durridge's strategic planning and policy formulation. She holds Master's Degrees in CS and Information Systems.
Adam Shrey
Chief Technical Officer
Adam is a hands-on manager who leads the engineering team in the development of world-class professional radon detectors, analytics software, and accessory products for soil and water measurements. He has a B.S. in computer engineering from Virginia Tech.
Stephen Sadler, Ph.D.
Chief Scientific Officer
Dr. Stephen Sadler manages the Durridge UK office, where he is responsible for research and operations. He also provides support for customers within the European Union. Dr. Sadler earned his Ph.D. in experimental astroparticle physics at the University of Sheffield.
Ryan McColgan
Sales Director
Ryan is Durridge's Sales Director in charge of business development, marketing, and managing Durridge's partner ecosystem. He received his B.S. in Business Administration from Western New England University and his professional Product Manager certification from the University of Maryland, College Park.
Mordecai Veldt
Mechanical Engineer
Mordecai is responsible for the mechanical system design, collection chamber geometry as well as the optimization of the manufacturability and assembly of Durridge's instruments and accessories. He has a BS in Mechanical Engineering from Cedarville University.
Jesse Simko
Senior Software Engineer
Jesse is responsible for Durridge's desktop software applications, including Capture and utilities for calibrating and testing Durridge instruments. He also handles web and print design projects. He has a BA from Hampshire College, where he concentrated in studio arts and computer game development.
Robert Renz Marcelo Gregorio, PhD, CPhys
Science Consultant
Dr. Robert Renz Marcelo Gregorio plays a key role in innovation and R&D, leading proof-of-concept investigations for radon products in development and exploring ML/AI applications for radon detection, while maintaining AWS Cloud infrastructure. He was awarded Chartered status (CPhys) by the Institute of Physics for his contributions to radon detection and mitigation techniques, following a PhD in Physics at the University of Sheffield. He has been a core member of the Durridge team since 2017 and also brings advanced technical expertise from his work at CERN on the ATLAS ITk experiment for the Large Hadron Collider upgrade.
Professor Neil Spooner
Director Durridge UK, and Durridge Scientific Advisor
Professor Neil Spooner leads a large research group in the Department of Physics and Astronomy at the University of Sheffield and is a Director of Durridge UK Ltd. Neil has over two decades experience in radiation detection physics and instrumentation including development of sensitive radon and alpha particle detection technology. Neil was founder of the UK's Boulby deep underground facility for low background studies and is an expert in astroparticle physics including dark matter and neutrino research.
Our headquarters in Billerica MA
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CE Compliance Information (EU)
Dr. Martyn J. Key, c/o Radiansa Consulting S.L.
Montcalm 20-22, 17006 Girona, Spain
Phone: +34 972 243232
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