LANGAN Engineering & Environmental Services, Inc. Share: Engineers LANGAN Engineering & Environmental Services, Inc. 989 Lenox Drive, Suite 124 Lawrenceville, NJ 08648 (609) 282-8000 (609) 282-8001 (fax) Rep Info Map Whom to Contact Neil Rivers 989 Lenox Drive, Suite 124 Lawrenceville, NJ 08648 Phone: (609) 282-8000 Fax: (609) 282-8001 Send an Email What's Nearby? Distance: 5 10 15 20 25 50 mi.