Find the right engineering partner.

New Technology. Merged with Legacy Experience.

Schaumburg, IL

Delivering 360-degree expertise in architecture and engineering

Denver, CO+2

Mechanical, electrical, plumbing, and fire protection engineering services

Arlington, TN

We Are Your Trusted Partner

Endwell, NY+4

Every Project Counts

San Francisco, CA

Trusted Expertise in Mechanical, Electrical and Plumbing Engineering Design

Coral Gables, FL

Mechanical Engineering and Electrical Engineering.

Savannah, GA

We Are Your Engineers and Energy Consultants

People-forward engineering design and consulting services

Chicago, IL+4

Structural Engineering and Commercial Building.

Fontana, CA

Making a Difference Through Engineering

Lakewood, CO+2

Engineering Performance. Delivering Innovation.

San Diego, CA

MEP Design Engineers Specializing in Achieving Excellence

New York, NY

Mechanical - Electrical - Plumbing Engineers

Tonganoxie, KS

Licensed Professional MEP and Fire Protection Engineers

Smithtown, NY

Engineering the Systems That Power Possibility

Fort Smith, AR+1

Engineering Services Since 1967

Charlotte, NC

Engineering with precision, pace and passion

Hoffman Estates, IL

As consulting engineers, we solve problems.

Bringing buildings to life.

Atlanta, GA+3

Mechanical Engineering and HVAC Design.

Building relationships through honesty, integrity, and quality.

Boise, ID

All Systems Go.

Peoria, IL+3

Experience The NEI Difference

Honesdale, PA+2