About Us
We’ve got experienced engineers and certified inspectors waiting to serve projects of any size or complexity
Our Story
United Engineering Resources (UER) is the parent company of MatriScope Engineering Laboratories and Signet Testing Laboratories, providing the corporate foundation, strategic direction, and organizational support that enable both firms to excel. Through these two established operating companies, UER brings together a deep bench of technical talent and a full range of geotechnical engineering, materials testing, and construction inspection capabilities, delivering consistent quality and expertise across California’s public and private market sectors.
MatriScope, founded in 1995 and incorporated in 2003, specializes in geotechnical and environmental engineering, materials testing, and special inspection services. As a wholly owned subsidiary of UER, MatriScope operates fully accredited materials testing laboratories and is recognized for its proactive project management, innovative practices, and commitment to traditional values built over nearly three decades of service.
Signet Testing Labs, established in 1966 and based in Hayward, CA, brings decades of experience in engineering, construction inspection, and materials testing. Its inspection personnel are proud members of Operating Engineers Union Local No. 3, reinforcing the firm’s commitment to skilled labor, technical integrity, and dependable service delivery.
Together under the UER banner, MatriScope and Signet deliver a comprehensive suite of engineering and inspection solutions, backed by deep regional expertise and a shared dedication to technical excellence, reliability, and outstanding client service. In 2025, UER was ranked #65 among the Top 80 Engineering Firms in Building Design + Construction’s Giants 400 Report, reflecting the organization’s continued growth and industry leadership.