Our Mission: Make Our Clients Successful. At Burns & McDonnell, our mutlidisciplined staff of nearly 7,000 employee-owners is focused on our clients’ success in every facet of the projects in which we are engaged. As a 100 percent employee-owned firm, each of us has a vested interest in the success of every project and client. More than 80 percent of our projects come from repeat clients. They know our mission is to serve them well, and they know they are dealing with concerned owners in every aspect of our relationship. We are guided by values that define our work and connect us to our client’s success: Safety first; Exceed expectations; Build trust; Quality driven; Integrity; Can-do attitude; Reward performance.