Vanguard Construction & Development

We are America's Complete PCB Resource Serving over 20,000 Designers, Engineers, and Innovators since 1986. Sierra Circuits is an ISO 9001:2008, ISO 13485:2003 and MilSpec MIL-P-55110 certified, Silicon Valley-based, high-technology Printed Circuit Boards manufacturer and Assembler. We specialize in quick turn PCBs and medium production. Unlike some PCB companies that are simply brokers/middlemen, we are the actual manufacturer and assembler of our PCBs. By owning our manufacturing and Assembly facilities, we control every aspect of the production schedule and quality. And this is why we can provide our customers unprecedented quality, reliability and a single point of support. Mission: Mission Statement To meet and exceed our customers? expectations for Quality, Technology, Delivery, and Price while achieving the highest levels of customer service and satisfaction.