RETTEW is a leading engineering consulting firm dedicated to rethinking norms and driving change. Clients place their full confidence in our diverse team of engineers, environmental consultants, designers, surveyors, and other skilled specialists for demanding projects of all sizes in a range of markets.

The Converse Professional Group, doing business as Converse Consultants, is a consulting engineering firm that provides Geotechnical Engineering, Engineering Geology, Soils and Materials Testing and Inspection, Environmental Services, Water Resources Management, and Occupational and Environmental Health and Safety Services. Our experienced and dedicated team of professionals partners with our clients to provide innovative solutions on each of our projects since 1946. Our past, present and future are founded on the principles of providing high quality service in a timely and cost effective manner. A few key services are listed below: • Geotechnical Investigations and Reporting • Third Party Construction Material Testing and Inspections • Asbestos Building Inspections • Phase I Environmental Site Assessments (ESA) • Phase II Site Characterization • Phase III Site Remediation • Soil and Groundwater Remediation • Soil and Concrete Laboratory Testing • Pennsylvania State Only Air Permits • NPDES Permits • Groundwater and Soil Sampling

Trans Associates Engineering Consultants, Inc. specializes in providing transportation planning and engineering services for a wide range of private and public clients. Founded in 1989, our firm has been established to comprehensively assess traffic and transportation needs and to provide appropriate design solutions. What distinguishes our firm from others is the extent and depth of our transportation engineering experience, our knowledge of and ability to navigate regulatory processes, our ability to provide creative solutions, and our experience and proficiency in preparing construction plans. Trans Associates provides traffic engineering, multi-modal transportation engineering, parking studies, roadway design and traffic signal design services. Trans Associates has performed many transportation planning studies for large mixed-use developments, brownfield site redevelopments and municipal comprehensive plans. Trans Associates has extensive experience with educational and medical institutional projects, from master planning and visioning studies, to traffic and parking studies of individual projects, to design and preparation of construction documents. Trans Associates is a recognized regional leader in these services, as well as in community coordination and public presentations. Our service area focuses primarily within Pennsylvania, Ohio, Maryland, New York, and West Virginia from our three offices located in Pennsylvania and Ohio.