Find the right engineering partner.

Professional. Hands-On. Solution-Oriented.

Watertown, NY

HVAC Design and Central chiller and boiler plants.

Pittsburgh, PA

HVAC Design and Central Energy Plants and District Cooling.

Professional Services from Design Through Construction

Sioux Center, IA

Improving Quality of Life

Pleasantville, NY+3

Buildings solved.

Salt Lake City, UT

Together. Shaping The Future.

Mechanicsburg, PA+1

Sustainable, energy-efficient, and eco-friendly engineering solutions

Functional + Efficient Design Solutions

Henderson, NC+2

Engineering excellence

Mobile, AL+2

Innovative MEP Solutions - Built to Perform, Designed to Last

Engineering Building Systems That Work For You

Maitland, FL+3

Engineering Excellence Since 2008

Cookeville, TN

Leaders in Quality Multidisciplinary Engineering

New York, NY

We design with people in mind.

Northridge, CA

Building Dreams, Crafting Realities

Erie, PA+3

Engineering + Material Testing

Cleveland, OH+2

Consulting Engineers

Chicago, IL

We Work to Enhance the Everyday.

Baltimore, MD+1

Mechanical Engineering and Innovative.

Glendale, CA+3

Experience The NEI Difference

Honesdale, PA+2

MEP Engineering and Mechanical Design.

Irving, TX+1

HVAC Design and Commercial and institutional HVAC systems.

Atlanta, GA

Committed to Customer Satisfaction through Quality Engineering

Raleigh, NC+1