Find the right engineering partner.

Practical and sustainable engineering design for MEP and fire protection systems

Farmington, CT

Engineering Design Services - Mechanical, Electrical, Plumbing

Rockaway, NJ

From Concept to Creation

Exeter, NH+1

Professional mechanical, electrical, plumbing, civil, and fire protection engineering services with over three decades of experience.

Glendale, CA+1

Quality and client satisfaction with innovation and credibility.

Burke, VA+1

Your challenge, our passion.

Omaha, NE+4

Experience The NEI Difference

Honesdale, PA+2

We build confidence

Santa Clarita, CA

Inspired Design. Engineered Precision.

McCook, NE+1

Blending architectural and engineering expertise to deliver cost-effective energy efficiency solutions

St. Louis, MO

Solutions for Better Buildings

Renton, WA

Mechanical and Electrical Consulting and Design

Keene, NH

Design | Engineering | Sustainability

Washington, DC+9

Innovative Engineering Solutions for Arizona

Phoenix, AZ

Industrial Ventilation & Piping Systems

Turn Your Vision into a Reality

Austin, TX

Quality Engineering since 1982

Chattanooga, TN

Delivering creative and efficient multidiscipline solutions for facilities and infrastructure needs.

Summerville, SC+1

Structural Engineering and Structural Property Assessments.

Culver City, CA+1

We make sure buildings work

Facility Performance Redefined.

Hastings, MN

MEP & Energy Consulting Engineering

Electrical Engineering and Mechanical Engineering.

Beaverton, OR

Performance by Design™

Deerfield Beach, FL+1