Josephson Engineering is a Santa Cruz, California microphone manufacturer founded by David Josephson in San Jose in 1988 and relocated to Santa Cruz in 2000. The company designs and builds a small, focused line of professional condenser microphones for studio, stage, field recording, and audio measurement applications, with all work done in-house at its Santa Cruz facility.

Its catalog is organized into the Series 4, Series 6, and Series 7 lines, encompassing models such as the C42 small-diaphragm cardioid, the e22S side-address cardioid, the C617SET measurement-grade omnidirectional (which pairs a Microtech Gefell nickel-diaphragm capsule with Josephson electronics), and the C700 series — including the dual-element C700A/C700S and the cardioid-only C716 — known for blending pressure-gradient and omnidirectional capsules in a single body. A C550 measurement microphone rounds out the instrumentation side of the line.

Josephson is a small, engineering-driven operation with no marketing department, selling through a handful of select dealers rather than mass distribution. In addition to its own-branded mics, the company supplies capsules to other microphone manufacturers and provides electro-acoustical engineering and design services, including work on aircraft and urban air-mobility noise measurement in collaboration with government research labs.

Josephson has 11 products cataloged on Equipboard, including Condenser Microphones. Their gear is featured by 12 artists, with the strongest followings in Rock, Metal, and Electronic. Notable users include Steve Albini, Billie Joe Armstrong, and Matthew Bellamy.