ZefSci, Zef Scientific, Inc.
Pharmaceutical ManufacturingCalifornia, United States51-200 Employees
ZefSci, also known as Zef Scientific, Inc., is a mid-sized engineering and scientific services firm based in San Diego, California. It specializes in LCMS instrumentation and related analytical systems used across the pharmaceutical, biotechnology, chemical, and cosmetics sectors. The company offers repairs, service contracts, preventive maintenance, and time-and-material options, and it incorporates instrument qualification and regulatory compliance into its offerings. By supporting multivendor LCMS facilities, ZefSci provides ongoing technical service and qualification support for its customers. It serves as a distributor and authorized service provider for Shimadzu chromatography products and maintains a West Coast service footprint for Evosep, while also handling EMSion technology and exclusive North American distribution rights for the V-KIT product. In 2026, ZefSci announced a partnership with Peak Life Science Advisors, broadening its collaboration network in the life sciences sector.