CALTROP is one of the largest construction services firms in California. Our firm was founded with the focus of providing construction support services for transportation projects throughout California. Over the years, we have grown and expanded our capabilities and expertise, and gone global, but have never wavered from our core commitment to provide excellent reliable services to the transportation and rail transit industries. Today, we have an expanding presence in the telecommunications and energy markets offering a full range of services from construction management to turn-key project delivery. Because of our singular focus on providing construction support services, we are able to attract and maintain a highly experienced staff with unique skills in the industry. We are recognized as leader in construction support services, and as an innovator in the profession. The result is we can offer our clients every service fully focused on successful delivery of your project.