Earth Engineering Inc. was founded in 1990 on clear principles: QUALITY ENGINEERING, CLIENT-FIRST SERVICE, and ON-TIME ON-BUDGET PERFORMANCE. We hold ourselves to these tenets in striving for excellence providing service tailored to our clients' needs. EEI provides geotechnical engineering, geotechnical design, environmental, construction inspection & testing, and laboratory services to Greater Philadelphia, South Jersey, Central Pennsylvania, the Lehigh Valley, New York, Delaware, and Maryland.