
RJN Group, Inc.
Celebrating 50 Years of Engineering Intuition, Innovation, & Insights for Water Infrastructure
Downers Grove, IL
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Celebrating 50 Years of Engineering Intuition, Innovation, & Insights for Water Infrastructure
Downers Grove, IL

A Data Driven Company

Our Mission Is Simple: We Engineer Water
Harlingen, TX

Let Us Help Make You a Good Neighbor
Brewster, MA
Your Structural Engineering Vision
Orange Beach, AL

Practical solutions to complex design and construction challenges
Boston, MA+1

Empowering communities to thrive.
Augusta, GA+2

Specialized Electrical Engineering for Water & Wastewater Infrastructure
Shawnee, KS

Expect More. Experience Better.
Raleigh, NC+7

Engineering solutions rooted in honesty, excellence, and authentic partnership.
Raleigh, NC

Evaluation and Advisory for the Energy Industry
Houston, TX
Making RF and Microwaves Work... Extremely Well!
Frankfort, NY+1

Engineering. Innovation. Shaping The Future.
Wilmington, NC+1

Rapidly Engineered Solutions That Work
Utica, NY

Certainty of Outcome, Cost and Schedule
Jacksonville, FL+14

Patented Electrically Conductive Concrete Structural Systems
Omaha, NE
Excellence. Every Client. Every Time.
Dallas, TX+3

Architecture and Programming.
Lincoln, NE

ALTA/NSPS Land Title Surveys and Boundary Surveys.
Plymouth, MA

Designed to Amaze, Engineered to Last®
New York, NY

Civil, Structural, and Forensic Engineering Services
Dallas, TX
Building Your Vision, Respecting Your Budget

Land Surveying and Civil Engineering in the Rocky Mountain West
Casper, WY

Designing Bridges & Connecting Communities
Orlando, FL