What Does Guarantee Electrical Company Do?

Total employees416
HeadquartersSt. Louis
Founded1902

Guarantee Electrical Company (GECO) is a distinguished national leader in the electrical contracting industry, with a rich history dating back to 1902. As an employee-owned firm, GECO is committed to delivering excellence in electrical construction, engineering, advanced technology integration, and process controls. They serve a wide array of markets including commercial, data centers, healthcare, heavy industrial, institutional, life sciences, manufacturing, mission critical facilities, power generation, renewables, transportation, and water/wastewater treatment. GECO's comprehensive services encompass preconstruction, design-build/assist, service & small projects, Building Information Modeling (BIM), prefabrication, low voltage systems, and specialized solutions for mission-critical and renewable energy projects, all driven by a core focus on safety, quality, and innovation.

Where Is Guarantee Electrical Company's Headquarters?

HQ Function

Serves as the central hub for GECO's national operations, housing executive leadership, project management, engineering design teams, preconstruction services, and administrative support for all company activities.

Notable Features:

Modern office facilities designed to foster collaboration and innovation. Likely includes advanced prefabrication workshops and technology integration labs to support their specialized services.

Work Culture:

As an employee-owned company, GECO fosters a culture of ownership, accountability, and teamwork. Emphasis is placed on safety, continuous learning, professional development, and delivering high-quality workmanship. The environment is collaborative and innovative, encouraging employees to contribute to the company's success.

HQ Significance:

The St. Louis headquarters is significant as the origin and nerve center of a company with over a century of history and a reputation as a national leader in the electrical contracting industry. It symbolizes their long-term commitment to the region and the industry.

Values Reflected in HQ: The headquarters likely reflects GECO's core values of safety, quality, integrity, innovation, and collaboration through its design, operational efficiency, and by providing a supportive environment for its employee-owners.

Location:

While primarily a national leader within the United States, Guarantee Electrical Company supports complex projects across the country. Their functions include comprehensive electrical construction, engineering, prefabrication, Building Information Modeling (BIM), low voltage systems, and specialized services for mission-critical facilities and renewable energy installations on a national scale. They do not have a significant physical office presence internationally but may collaborate on projects with global implications through their US-based operations.

Street Address:

3405 Bent Avenue

City:

St. Louis

State/Province:

MO

Country:

USA

Where Else Does Guarantee Electrical Company Operate Around the World?

Granite City, IL, USA

Address: 2301 Adams Street, Granite City, IL 62040

To provide localized expertise and rapid response for GECO's clients in Southern Illinois and the greater St. Louis metropolitan area on the Illinois side, enhancing project efficiency and client relations.

Denver, CO, USA

Address: 7100 E. 47th Ave. Dr. Unit C, Denver, CO 80216

To expand GECO's national footprint and serve the growing construction and infrastructure needs in Colorado and adjacent states, offering specialized electrical solutions.

Benicia, CA, USA

Address: 560 Stone Road, Suite G, Benicia, CA 94510

To provide dedicated project management and technical services to clients in California and the Pacific West, leveraging GECO's national expertise for regional demands.

Buying Intent Signals for Guarantee Electrical Company

Highperformr Signals uncover buying intent and give you clear insights to target the right accounts at the right time — helping your sales, marketing, and GTM teams close more deals, faster.

Notable news
Hiring actively
Corporate Finance
Corporate Finance
Corporate Finance
Corporate Finance
Corporate Finance
*Example signal, not calculated in real time

Who's Leading Guarantee Electrical Company? Meet the Executive Team

As of April 2025, Guarantee Electrical Company' leadership includes:

Rick Oertli - Chairman
Dave Gralike - President & CEO
Emily Martin - Chief Financial Officer
Doug Mertzlufft - Chief Operating Officer

Who's Investing in Guarantee Electrical Company?

Guarantee Electrical Company has been backed by several prominent investors over the years, including:

Employee Stock Ownership Plan (ESOP) - Employee-Owned

What Leadership Changes Has Guarantee Electrical Company Seen Recently?

Hire0
Exits0

No major C-suite executive hires or departures have been publicly announced for Guarantee Electrical Company in the last 12 months. The company maintains a stable leadership team.

What Technology (Tech Stack) Is Used byGuarantee Electrical Company?

Discover the tools Guarantee Electrical Company uses. Highperformr reveals the technologies powering your target accounts — helping your sales, marketing, and GTM teams prioritize smarter and close faster.

Guarantee Electrical Company Email Formats and Examples

Guarantee Electrical Company likely utilizes common professional email formats. While specific patterns can vary, a typical structure for companies of this nature is [firstinitial][lastname]@[companydomain.com] or [firstname].[lastname]@[companydomain.com]. The most probable format is [firstinitial][lastname]@guaranteeelectrical.com.

[firstinitial][lastname]@guaranteeelectrical.com

Format

dgralike@guaranteeelectrical.com

Example

80%

Success rate

What's the Latest News About Guarantee Electrical Company?

guaranteeelectrical.comOctober 5, 2023

Guarantee Electrical Company Wins Three 2023 NECA Project Excellence Awards

Guarantee Electrical Company announced it received three 2023 Project Excellence Awards from the National Electrical Contractors Association (NECA) for projects in healthcare, commercial office, and institutional categories, highlighting their quality workmanship and innovation....more

guaranteeelectrical.comJune 28, 2023

Guarantee Electrical Company Recognized as a Top Workplace for 2023 by St. Louis Post-Dispatch

Guarantee Electrical Company was named a 2023 Top Workplace by the St. Louis Post-Dispatch, based on employee feedback, underscoring its positive work environment and employee-centric culture....more

guaranteeelectrical.comJune 21, 2023

Guarantee Electrical Company Celebrates Topping Out of BJC West County Hospital Phase II

Guarantee Electrical marked a significant construction milestone with the 'topping out' ceremony for Phase II of the BJC West County Hospital project, showcasing progress on this major healthcare facility....more

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