For the last 40 years, DJ&A has been working with Federal, State, and local clients to build and maintain a name and reputation of quality, reliability, and integrity. We are proud to be a multidisciplinary engineering, surveying, and planning firm that is based out of Missoula, Montana. DJ&A, P.C. has professionals board certified in nineteen states. From the preliminary phases of design to completion, our staff can organize and successfully manage each stage of project development with systematic engineering, surveying and planning, all while keeping close attention to our clients' objectives. - Structural - Transportation - Survaying/mapping - GIS - Planning - Environmental - Right of Way We firmly believe that every client and their needs are important. Thats one of the reasons we address the needs and concerns of every client through our communication-based business approach. We know there is a wide selection of firms to choose from and we are pleased to say that our quality of service and customer communications makes us the top choice. Call or email us today.