Compu Drive System

Kolkata-based manufacturer of transformers and electronic components. It makes custom step up/down transformers and lists PCB assembly, plastic moulding and box-build assembly among its capabilities.

Kolkata-based electronics manufacturer, founded in 1993. It provides third-party EMS and contract manufacturing for OEMs (PCB assembly, electro-mechanical assembly, cable and wiring harnesses, box build). It also makes its own product lines, including test and measuring instruments, consumer electronics, elevator products and PCBs.

Kolkata-based company that provides PCB and schematic design, PCB soldering and assembly, and electronics manufacturing services (assembly, testing, product assembly). It also offers industrial training and fault finding and repair.

Kolkata-based IoT and embedded systems company. It designs and prototypes custom electronic hardware, firmware and software for clients, including PCB layout, PCB assembly and testing. It also sells its own products such as an air quality monitoring system, an IoT middleware, a pump controller and an oxygen concentrator.

Kolkata-based electronics manufacturer. It makes LED display boards, clocks, token systems and similar equipment under its own designs. It also lists PCB manufacturing, PCB assembly and custom electronics product design.

Kolkata-based manufacturer of servo controlled industrial voltage stabilizers, control panels, isolation transformers, CVTs, battery chargers and inverters. It designs and builds custom units to customer requirements and serves Eastern India.