Top St. Louis, MO Energy Companies (39)

Watlow is a global industrial technology company that uses its world-class engineering expertise, advanced thermal systems and manufacturing excellence to provide a wide array of temperature control, power control, heater technologies and temperature sensing platforms. Watlow brings its experience to a broad cross section of industries, including semiconductor processing, environmental chambers, energy processes, diesel emissions, medical and foodservice equipment. Since 1922,...

GHD recognises and understands the world is constantly changing. We are committed to solving the world’s biggest challenges in the areas of water, energy and urbanisation. We are a global professional services company that leads through engineering, construction and architectural expertise. Our forward-looking, innovative approaches connect and sustain communities around the world. Delivering extraordinary social and economic outcomes, we are...

With over 2 billion tons of coal reserves, we are among the largest holders of coal reserves in the United States and our reserves can support over 75 years of production at our current production level. We operate three mining complexes in the Illinois Basin. Our mining complexes use highly efficient longwall mining systems. This highly productive mining method coupled with...

ENTRUST Solutions Group, an ENR Top 100 company, provides comprehensive and dependable engineering, consulting, and automation services to pipeline companies, gas and electric utilities, and industrial customers. With first-hand experience operating and maintaining energy infrastructure, our engineering professionals provide expertise in Pipeline Engineering, Integrity Services, Automation Integration, Electrical Design, Fiber & Broadband Communications, Industrial Solutions, and Process Safety Management. ENTRUST...

Kirby-Smith Machinery, Inc. is a leading distributor of heavy equipment and cranes in the central United States, serving the construction, mining, and industrial markets since 1983. As a full-service dealer, the company provides new, used, and rental industrial, road building, and construction equipment, including cranes, excavators, and dozers, while focusing on reliability and exceptional service for its clients.

McGrath & Associates, Inc. is a 100% employee-owned general contracting and construction management firm headquartered in St. Louis, Missouri. Founded in 1983, it serves clients throughout the Midwest and North Carolina, specializing in pharmaceutical, healthcare, energy, industrial, institutional, and commercial projects. The firm also offers in-house design services and aims to deliver safe, high-quality work in complex, highly regulated environments...

Qflow Group is a multidisciplinary engineering consultancy specializing in infrastructure engineering, energy, and the environment. The company provides professional project management for infrastructure projects and delivers sustainable technical solutions and innovative services within the field of urban development. As a challenger in the engineering consultancy sector, Qflow focuses on creating sustainable and innovative solutions for the future of society's infrastructure.

At Emerson, we’re passionate about what we do. By fusing decades of technology and engineering expertise, Emerson continues to solve some of the world’s most complex challenges with innovative solutions for customers in industrial, commercial, and residential markets. We recruit the greatest talent and apply the best technologies to benefit our customers worldwide. Automation Solutions is a leader in helping...

Oldcastle BuildingEnvelope (OBE) is a vertically integrated North American manufacturer, fabricator and distributor of architectural glass, glazing systems and related hardware. It supplies value-added glazing-focused products and services for interior and exterior building applications, including curtain walls, storefronts and entrances, windows, shower enclosures, railings and glazing hardware. Its team works with architects, glaziers, contractors and owners to address design challenges...

K&A Engineering, part of K&A Power Group, is a power engineering and energy infrastructure firm serving utilities and related clients. The company provides engineering, consulting, EPC, project management, transmission, substation, distribution, protection and control, planning, and grid modernization services. Its work supports the development, delivery, and operation of critical electrical infrastructure across the United States and internationally.

Stanley Consultants is a global consulting engineering firm with over 110 years of experience. They provide innovative design, engineering, and program management services across various sectors, including energy, civil infrastructure, federal, and industrial markets. With a presence in 120 countries and all 50 U.S. states, the firm focuses on developing sustainable and efficient solutions to improve lives and support complex...

Legrand, North & Central America, one of Legrand S.A’s largest subsidiaries, is the global specialist in products and systems for electrical and digital building infrastructures. Our comprehensive offering of solutions for use in commercial, industrial, and residential markets makes us the premier choice for suppliers worldwide. A steady flow of inventive products with high added value is a prime vector...

Neumayer Equipment Company is a family-owned petroleum and energy services company serving commercial and retail fueling operations. Founded in 1934, it supplies petroleum equipment and parts and provides design/build, construction, installation, branding/imaging, financing, and maintenance. Its expertise covers underground and aboveground storage tanks, piping, bulk fueling systems, and dispensing equipment, with service delivered across Missouri and neighboring Midwestern states for...

Pivot Energy is a renewable energy provider and independent power producer that develops, finances, builds, owns, and manages solar and energy storage projects. Pivot leverages its renewable expertise to provide a range of unique offerings that accelerate the clean energy transition by helping companies and communities attain impactful decarbonization. Pivot is a US-based Certified B Corporation that proudly follows a...

United States Steel Corporation is a major American steel producer headquartered in Pittsburgh that manufactures and sells flat‑rolled and tubular steel products and operates iron‑ore and coke facilities. It supplies automotive, construction, energy, appliance and industrial equipment markets across the U.S. and Central Europe and maintains downstream fabrication and distribution capabilities to serve diverse industrial customers.

Graybar, a Fortune 500 corporation and one of the largest employee-owned companies in North America, is a leader in the distribution of high quality electrical, communications and data networking products, and specializes in related supply chain management and logistics services. Through its network of 290 North American distribution facilities, it stocks and sells products from thousands of manufacturers, helping its...

Fabick Cat is the authorized dealer of Caterpillar equipment, prime and stand-by power systems, parts and service, compact construction, and rental equipment for major portions of Illinois, Missouri, the entire state of Wisconsin, and the Upper Peninsula of Michigan. They supply essential products, from machines that support infrastructure and farmers to emergency power generation, helping to make progress possible.

KASCO is a leading manufacturer of metallic blade products for the meat, food, and wood cutting industries with global distribution sales. Established in 1901, the company provides a national Service Repair and Route Delivery business that services retail grocery, packing houses, and restaurants across the entire US and Canada markets, combining manufacturing excellence with exceptional service and teamwork.

Modineer is your partner for quality metal components. Our wide range of capabilities and equipment allow for manufacturing of custom parts in high or low volume applications out of quality steel, stainless, or aluminum. These premium metal working capabilities offered by Modineer include Roll Forming, Metal Machining, Fabrication, Welding, and beyond. We work closely with our customers to ensure our focus...

Founded in 1990, LS Power is a premier development, investment, and operating company focused on the North American power and energy infrastructure sector, with leading platforms across generation, transmission and energy transition solutions. Since inception, LS Power has developed or acquired over 47,000 MW of power generation, including utility-scale solar, wind, hydro, battery energy storage, and natural gas-fired facilities. Through...