Trio Manufacturing is a privately held business in El Segundo, CA. Trio's state-of-the-art manufacturing and quality system t ... echnologies, coupled with our expertise in tight tolerance manufacturing provide customers with high-quality, high-value, cost competitive solutions. In 2020 alone, we have made capital expenditures of more than 6 million dollars. Notable recent investments include the acquisition of multiple large palletized Matsuura 5 axis machining centers. We take great pride in our ability to provide first class customer service, quality products and most important, on time deliveries. We welcome the opportunity to develop a strategic partnership with you on any future manufacturing requirements. read more