For over 60 years B&K Precision has provided test and measurement solutions to customers from a wide range of fields, including research and development, product design, industrial maintenance, electronic field service, production line testing, and education. However, when the company began in 1948 in a garage in Chicago its specialty was tools for television service. By 1951 B&K had expanded to include an electronic test and measurement branch. This branch of the company would eventually become a world-leader in the test and measurement industry and remains that today.

B&K offers a complete range of general testing and measurement instruments. The company's most popular products include power supplies and DC electronic loads, signal generators (especially function and arbitrary generators), component testers, oscilloscopes, spectrum analyzers, and multimeters. They also provide a full range of device programmers, video and cable testers, electrical and battery testers, and environmental testers. They also manufacture a large array of probes, leads, adapters, and additional accessories that make testing easier.

B&K Precision actually uses the products they make, so their commitment to well-made, reliable products is personal. The company mission is to maintain the core values upon which its reputation was built, develop new products to meet rapidly changing needs, and continue providing the products and service that customers have come to trust. The company's offices in North America, Europe, and Asia work with an international network of authorized distributors to deliver products worldwide and provide global service and support. B&K also owns subsidiaries Sefram, ITECH, and Lodestar.