BI Technologies Corporation, a subsidiary of TT Electronics plc, is a specialized manufacturer of passive electronic components and custom hybrid circuits. Founded in the 1960s and headquartered in Fullerton, California, the company has a long history of innovation in precision resistive products. Its core business focuses on the design and production of thick film resistor networks, trimmer potentiometers, and precision potentiometers. Additional key product lines include position sensors, turn-counting dials, and custom thick film hybrids for demanding applications. BI Technologies serves a diverse range of markets, including industrial automation, medical devices, aerospace, defense, and telecommunications. The company is known for its high-reliability solutions that meet stringent quality standards such as AS9100 for aerospace. With a global manufacturing footprint and engineering support, BI Technologies offers both standard and custom-designed components to match specific customer requirements. Through TT Electronics, it leverages a broader distribution network and complementary technologies to strengthen its market presence. The company maintains a strong reputation for technical excellence and long-term supply stability, making it a trusted partner for critical applications.