Egan, Field & Nowak, Inc. (EFN) is a professional land surveying and civil engineering firm. Established in 1872, EFN offers an unparalleled wealth of experience and information. Our hallmark tradition, constructed over decades of consistent, quality work, has made EFN the “benchmark” in our profession. Over the past 150 years, EFN has surveyed and mapped a major portion of the greater Twin Cities area, provided surveying services in every county in the State of Minnesota and worked extensively throughout the Midwest.