Founded in 2003, Maryland-based Net Research Corporation develops telecom and datacom service-verification tools, including handheld network analyzers and cloud-based testing platforms. The privately held company serves nearly 600,000 customers worldwide through U.S. sales operations and an international distributor network, with particular strength in testing communications systems used by power utilities and other critical networks.
GL Communications IncGL Communications was formed in Gaithersburg in 1986 by engineers Vijay Kulkarni and T. Bruce Yost, a partnership that grew from their work designing communications networks. Now led by co-founder Vijay Kulkarni, the company has spent four decades developing telecom testing technology and advising organizations that operate or build communications networks, including government and aerospace customers worldwide.GAITHERSBURG, MD
Arcom DigitalArcom Digital develops and manufactures equipment and technologies for monitoring, diagnosing, and maintaining cable networks, including RF filters and network-test devices. Founded in 2002, the company says its work builds on more than 35 years of field testing and sustained product innovation alongside customers. Its technologies address cable-network impairment detection, leakage tracking, and predictive maintenance.SYRACUSE, NY
Reliable Equipment & Service Co., IncReliable Equipment & Service Co., Inc. traces its roots to Norm DeLan Sr., who founded DeLan Tool in the early 1970s and built a reputation for dependable customer service. After more than 45 years, the Warminster company remains known for American-made utility equipment, repair expertise, and support for power-utility and line-construction crews. Its testing facility also evaluates rubber and fiberglass equipment under ASTM, IEEE, and OSHA standards.423710WARMINSTER, PA
Zeltex LLCSince 1992, Zeltex LLC has built its reputation around more than 30 patents in near-infrared technology and a practical focus on portable analysis. Based in Hagerstown, Maryland, the company serves customers who need dependable measurements in the field or laboratory, including government agencies and agricultural businesses. Zeltex became part of Italy’s Dinamica Generale in 2019 and holds ISO 9001:2015 certification.HAGERSTOWN, MD