Guarantee Electrical Company

Founded in 1902 to light the 1904 St. Louis World’s Fair, it grew from a single

office startup into a multi

state electrical powerhouse.

Headquartered in St. Louis with branches in Illinois, Colorado, and California, its reach is fortified by membership in a national electrical network.

Known for design

build and preconstruction expertise, it handles low

voltage systems, BIM, emergency services, and prefabrication.

Typical projects include healthcare facilities, data centers, industrial plants, power generation, renewables, and mission

critical infrastructure.

Consistently ranked among the top U.S. electrical contractors by Engineering News

Record, with awards for quality, safety, and innovation.

Pioneered ESOP ownership, transitioning from family

owned to fully employee

owned by 2023 after decades of buyouts.

Started by lighting a World’s Fair and now champions cutting

edge tech like EV charging, solar, and BIM

driven prefabrication.

Customer Focus

Community Outreach

Diverse Talent

Social Responsibility

Team Camaraderie

Employee Ownership

Character: We believe the true measure of a person’s character is how he/she behaves when no one is looking. We exercise the daily discipline of integrity and trustworthiness to ensure freedom in fulfilling our responsibilities to ourselves, to each other and to those we serve. We aspire to be always be our best and to give our best.

Commitment to construction sustainability via leadership in Energy and Environmental Design (LEED), Building Information Modeling, Trimble® MEP software, electrical prefabrication, just

in

time delivery project management.

Provide full turnkey solar solution including engineering, permits, utility applications, leveraging federal and utility incentives to deliver measurable financial returns and on

site clean electricity production.

Install EV charging infrastructure to support corporate sustainability goals and reduce greenhouse gas emissions.

Net

zero target date: Not stated on public site.