RJN CELEBRATES 50 YEARS WITH A $50,000 DONATION RJN CELEBRATES 50 YEARS WITH A $50,000 DONATION. PR Newswire. DOWNERS GROVE, Ill., April 1, 2025. The funds will be used to further ecological ...

RJN Group is pleased to announce their newest southeast Texas office in Victoria is now open for business. Established in 1975, RJN Group is an employee-owned, professional engineering and ...

RJN Group, Inc. commemorates a half-century of water infrastructure innovation. This journey began with founder Richard J. Nogaj's profound commitment to the environment, inspired by the landmark ...