Established in 1915, LEO A DALY offers a variety of comprehensive services in a number of market sectors and geographic locations. Encouraged by a legacy of innovative leadership and the resources of a large firm, our inspired professionals work creatively in flexible teams, customized specifically for each project, to meet the unique needs of each client. The firm's award-winning portfolio includes projects in 91 countries, all 50 states and the District of Columbia.


LAN is a subsidiary of LEO A DALY, with a long history and successful track record of working closely with clients to produce high-quality work in a timely and cost-effective manner. LAN offers planning, engineering and program management services for a variety of markets, including energy services, facilities engineering, navigation, ports and coastal, pipelines, public works engineering, rail and transit, transportation, wastewater and reuse and water systems.