Welcome to Walter L. Phillips, Inc.

Within the space of a lifetime, the mid-Atlantic region and the Washington Metropolitan DC area in particular has transformed itself.

Since 1945, Walter L. Phillips, Inc. has been centrally involved in this transformation, helping a broad variety of projects come to fruition throughout the Washington DC and Northern Virginia area, including Arlington, Alexandria, Tyson’s Corner and many more. For a full list of locations we service, please visit our services page

We have a legacy of combining state-of-the-art engineering, creative problem-solving and outstanding customer service for our clients and their stakeholders. In an industry in which change and churn are the norms, we’ve worked hard to maintain a consistent, dedicated team focused on delivering the best engineering services and value available anywhere.