Surveying and railway-measurement solutions, total stations (robotic, mechanical, Windows-based), GPS/DGPS (the Apogee NAVIK-200, NAVIK-300, India's first domestically developed DGPS), laser levels, automatic levels, theodolites, and railway track-measurement devices such as track-geometry trolleys, rail-wear gauges, and wheel-profile gauges, are the field Paragon Instrumentation Engineers Pvt. Ltd. leads. It also offers rolling-stock equipment for measuring wheels, axles, CBC parts, bogie components, and buffers. Established in 1959 and acting as authorized dealer for global brands such as Sokkia (Japan), SxBlue GPS (Canada), and LaserTech Inc. (USA), and partnering with KZV (Czech Republic), Metalelektro, and RIFTEK, Paragon serves railway, construction, surveying, and geospatial-mapping (GIS) customers. ISO 9001:2015 certified, it emphasizes high-quality, inventive products, offers round-the-clock support via a dedicated mobile app, and provides calibration and repair for surveying equipment.