Founded in 1975, Mission Electric Supply Inc in Carlsbad's Aviara corridor stocks wire, conduit, breaker panels, and industrial controls from its warehouse on Camino Vida Roble. The wholesale counter supplies trade-grade components to C-10 contractors throughout North County, with contractor accounts serving residential electricians at Wheyland Electric pulling permits across the 92011 ZIP code. A second distribution facility in Temecula supports coverage from the coast to Riverside County, allowing same-day fulfillment on large commercial orders. Bin stock runs from Eaton and Square D load centers through Southwire THHN/THWN in gauges from #14 to 500 MCM, a panel-and-wire depth that serves the same multi-trade commercial projects where General Coatings Corporation handles exterior waterproofing and industrial coatings. The Carlsbad location carries full NEC-compliant raceway systems including EMT, rigid galvanized conduit, and Schedule 80 PVC in diameters from 1/2-inch through 6-inch for industrial and utility-scale runs.