Ameren Missouri is part of St. Louis-based Ameren Corporation, with a generating capacity of 10,500 megawatts. Ameren Missouri has been providing electric and gas service for more than 100 years, and our electric rates are among the lowest in the nation. Ameren Missouri's mission is to power the quality of life for our 1.2 million electric and 132,000 natural gas customers in central and eastern Missouri.

ArchKey Solutions is one of the largest electrical & technologies construction firms in the United States. They are a network of innovators and leaders - working together to change the face of electrical and technologies construction. They are multiple companies across the U.S., working together, supporting each other, enabling each other to do more.

Barts Electric has grown to become a premier provider of commercial electrical and special systems services for clients across the US.

With a global network of distribution, installation & integration partners, Belden offers the resources & expertise to effectively meet customer deployment needs.

Cuivre River Electric Cooperative (CREC) is headquartered in Troy, Missouri, with a branch office in Lake Saint Louis, Missouri. They belong to and were built by, the communities they serve.

Electric Power Systems is a, NETA Certified, Independent Electrical Testing & Engineering Organization. They specialize in commissioning, start-up and maintenance testing for Utility, Industrial, Transit, Data Centers and Commercial Facilities.

Electro Plastics Inc. dba. STEP Warmfloor® (Self-regulating Technology of Electro Plastics) is an engineering company and the leading manufacturer of self-regulating flat heating elements. They heat floors and melt ice and snow across the globe through their unique and patented electric radiant heating system.

Emerson continues to solve some of the world’s most complex challenges with innovative solutions for customers in industrial, commercial, and residential markets. Automation Solutions is a leader in helping process and discrete manufacturers automate and optimize production processes through best-in-class technologies and industry expertise. Commercial & Residential Solutions develops technologies and services that improve human comfort.

Graybar, a Fortune 500 company, specializes in supply chain management services, and is a North American distributor of high quality components, equipment, and materials.

Guarantee Electrical is a full-service electrical contractor since 1902 providing capability, performance, and legendary innovation in new construction, design-build, design-assist, low-voltage, building management controls, emergency service, building maintenance, and troubleshooting. We also offer expertise in energy savings and energy management solutions.

A full service electrical contractor since 1902 providing capability, performance, and legendary innovation in new construction, design-build, design-assist, low-voltage, building management controls, emergency service, building maintenance, and troubleshooting. They also offer expertise in energy savings and energy management solutions.

Killark, a member of the Hubbell Harsh & Hazardous group of companies, has become a global provider of harsh and hazardous location products. Their range encompasses industrial and explosion-proof equipment engineered to perform in the most extreme environments.

Mark One Electric specializes in the design, installation, and maintenance of complex electrical systems. They are one of the largest and most respected union electrical contractors in the Midwest.

Nidec Motor Corporation is a manufacturer of commercial, industrial, and appliance motors and controls. Their product lines feature a full range of high-efficiency motors, large and small, which serve industrial, residential and commercial markets.

PAR is a national leader in all aspects of outside electrical construction. For more than six decades, their reputation as solution providers has been consistently applied across all their service offerings.

PayneCrest Electric, Inc. strives to set new industry standards for safety and quality. Their reputation is backed by passionate leaders, a highly skilled workforce and access to the best tools. Delivering projects on time, under budget and bringing the team home safely are their primary goals.

Potter Electric Signal Company was utilizing customized products and monitoring them with the latest telecommunications equipment. In a time when human initiative was the most valuable industrial commodity.

Sachs Electric Company is a nationwide electrical, communications, and instrumentation contractor headquartered in St. Louis, Missouri. Sachs is consistently ranked one of the top 15 Largest Electrical Contractors in the Engineering News-Record (ENR) and is recognized as a pioneer in power generation, industrial installations, health care, and research facilities, commercial buildings, and all types of advanced technology projects.

Savion, a Shell Group portfolio company operating on a stand-alone basis, is one of the largest, most technologically advanced utility-scale solar and energy storage project development companies in the United States of America. They are actively advancing U.S. utility‐scale photovoltaic (PV) and energy storage projects that help decarbonize the nation’s electricity grid and deploy modern power to diverse markets at lower cost to customers.

Voltyx is an integrated solutions provider focused on guiding partners through the complex modernization of the electrical infrastructure through vision, strategy, service, and support. They deliver uncompromising safety and reliability – both now and in the future.