Established in 1917 and based in Martinez, Calif., Shields, Harper & Co. is a California corporation. The company has added many products and services, including tanks, dispensers, nozzles, valves, fittings, as well as payment systems, POS, software for facility management and security. It also offers technical services such as CAD drawings and environmental analysis. Shields, Harper & Co. serves the petroleum handling industry and its integrated systems are installed in airports, fleets, commercial and retail sites throughout its market area.
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