Welcome to your future. PSA offers the growth, diversity, experience, and challenging opportunities you are looking for.
Throughout the firm’s 270-year history, the traditions of personal service and quality products established by the original business founders continue to be the firm’s primary objective. We provide a work environment based on a guiding principal to challenge, stimulate, and support our workforce with high-quality projects utilizing state of the art technologies and practices. We serve a broad range of public and private clients including land developers, builders, educational institutions, parks and recreational authorities, transportation agencies, and local government agencies throughout the Washington Metropolitan Area. Our staff has the capability and expertise to provide civil engineering, land planning, and land surveying services.