Established in 1920, Electrical Engineering Company known as 3E, is an industry leader with diverse capabilities. We are a group of related businesses working together to enhance service to the electrical industry.

Business Support Solutions
Electrical Supplies & Services
Power Distribution & Energy Management
Commercial Lighting & Control
Industrial Supplies
ITS / Information Technology Systems
Electrical Apparatus Repair
Control Panels / Value Add Service
Custom Steel Fabrication & Equipment


3E Calendar of Events

2018 - 2019

Open House & Tool Day

  • September 20, 2018
  • 3E North Platte, Nebraska

Residential Product Show

  • September 27, 2018
  • 3E Columbus, Nebraska

Tunable White Training

  • October 3, 2018
  • 3E Windsor Heights, Iowa

NEC Code Update Class

  • October 4, 2018
  • 3E Waterloo, Iowa

LED Light Fair

  • October 10, 2018
  • 3E Lexington, Nebraska

NEC Update Class

  • October 12-13, 2018
  • 3E Omaha, Nebraska

Grounding and Bonding Class Hazardous Location Fundamentals

  • October 15, 2018
  • 3E Windsor Heights, Iowa

Electrical Calculations AIC vs Calories Class

  • October 17, 2018
  • 3E Windsor Heights, Iowa

Iowa Certified Classes for State Licensing

  • October 18, 2018
  • 3E Iowa City, Iowa

Grounding & Bonding Class

  • October 23, 2018
  • 3E Waterloo, Iowa

Iowa Certified Classes for State Licensing

  • November 15, 2018
  • 3E Iowa City, Iowa

Iowa Certified Classes for State Licensing

  • December 13, 2018
  • 3E Iowa City, Iowa


Iowa Certified Classes for State Licensing

  • January 10, 2019
  • 3E Iowa City, Iowa

Iowa Certified Classes for State Licensing

  • January 24, 2019
  • 3E Iowa City, Iowa

Statistics Reinforce Your Solutions & Provide Credibility

Our employee-owners are empowered to give it everything we've got to bolster your bottom line.

Ideas Generate Innovation

Custom wire and cable solutions, online ordering, drive-through service and more.

Orders are promises

Same-day delivery, 800+ brands, and best-in-class fulfillment.

Expertise is essential

On-call technical troubleshooting and six dedicated teams of product specialists.

Gratitude gives back

Volunteering and providing financial support to our communities.

Latest News

Learn about our recent projects, best practices, newest products, latest news and more.

Don't Take Our Word For It

Testimonials are a powerful selling tool. Ask some of your better known affiliations to share a few words about how you've made their lives easier.

"What A Wonderful Team To Rely On"

Ned Plimpton, Belafonte Co.

I'm continually blown away by the team at Symphony. They rock! I would come back again and again.

"Produced With Perfection In Mind"

Walter Sobchak, Rug Collector LLC

I don't know what I would do without Symphony. My happiness has gone through the roof :)

"This Product Blew Me Away"

Lucille Bluth, Real Estate Inc. Group

My expectations were exceeded beyond belief.  The product was wonderful and it asnwered all my problems!