Since 1923, Alterman has provided electrical construction on many of San Antonio and Austin's most impressive landmarks and contemporary structures. By integrating cutting-edge technologies with core values and disciplines, Alterman has successfully met the expanding needs of commercial and industrial clients and has earned the confidence of Owners, Construction Managers, General Contractors, Architects, and Engineers. We are an EC&M Top 50 market leading electrical contractor focused on safety, quality, and customer satisfaction with a strong commitment from our employee owners to excellence throughout the organization. Alterman provides complete installation expertise, 24/7 service, in-house design / build and Building Information Modeling (BIM) and fast-track construction for a wide range of electrical needs, as well as voice and data communications systems, video, access controls, security and surveillance systems and alternative energy solutions for LEED certification.

Since inception in 1966, Big State Electric Ltd. leads the construction industry by providing top notch electrical installations with superior workmanship. For decades we have fostered relationships in South/Central Texas working with Owners, Architects, Engineers, General Contractors and World Wide corporations.. Spanning the gambit form multi-million dollar electrical projects to service work, we ensure that our client's needs are met. We emphasize quality, service, and safety, from the office to the field. Our reputation is built on professionalism, morals, and ethics. Our company foundation is rooted in old fashion business principals that may seem old school to some, but to us is the only way to do business. We utilize state of the art Electrical Technology, Safety, BIM and Auto Cad in our business. We also perform 98% of our work in house, including Excavation, Fire Alarm, Sound Systems, Security, Fiber Optics, Controls, Automation and Testing. We have expertise in a diverse outlet of of commercial electrical. Including facets such as Office buildings, Hospitals, Call Centers, Data Centers, Schools, Higher Learning Facilities, Industrial Applications and Central Offices for Communication Companies.

D&H United Fueling Solutions is a leading supplier of petroleum fueling and EV charging system equipment, installation, and service across the United States. We are a distributor and service provider for many of the industry’s most respected and trusted equipment brands. With 35 branch offices and over 1,400 employees operating throughout the United States, D&H United is committed to providing top-notch service to its clients. Tanknology, a subsidiary of D&H United, is the world’s largest provider of tank testing and environmental compliance services for petroleum systems. Tanknology provides compliance services at more than 100,000 sites annually. Continuously growing, in 2024 D&H United Fueling Solutions was named to the prestigious Inc. 5000 list of America’s fastest growing private companies for the third consecutive year. Our continuous growth is a testament to our dedication to providing quality service to our customers. Whether you are a site operator, C-store developer, distributor, or petroleum reseller, D&H United would love to partner with you to address any need your site may have. With industry-leading service, cutting-edge technology, turn-key compliance solutions, and knowledgeable staff, D&H United is the national leader in keeping communities moving.

Enertech is an industry leader in engineering, technology deployment, and construction services for the wireless industry. Our proven track record for safety and quality position us to work with the nation’s major wireless carriers, tower owners, and technology providers. As one of the largest wireless infrastructure companies in the industry, our breadth of knowledge and technical expertise help our customers design, build, optimize, and maintain reliable wireless networks. Safety. Quality. Commitment. Safety is who we are. Quality is what we do. Commitment is what Enertech offers you.

From facility design to daily management to work release programs, LaSalle Corrections and Southwestern Correctional offers multi-discipline solutions for everything corrections.

For over 48 years, Spectrum Lighting, Inc. has provided Austin and its surrounding territories with premier customer service, quality products, and lighting designs. Our knowledgeable team helps implement sustainable lighting applications and controls solutions. We are dedicated to creating an innovative lighting environment while maintaining budget and design goals. Team up with Spectrum Lighting, Inc. - Austin and be light years ahead of the others!

Facility Solutions Group, (FSG) is one of the nation’s largest single-source providers of lighting and electrical products, electrical services, electrical construction, and energy management solutions. With almost 40 years of history serving customers, we develop, design, market, sell and support all types of lighting, electrical, control, and energy-saving products and services. The company’s products and services enable customers to build, maintain, expand or upgrade their facility infrastructures, in scenarios ranging from new construction to remodels to ongoing operations. FSG customers include large property owners and managers, commercial businesses, retail chains, general contractors, property developers, healthcare, financial, hospitality, educational, government entities, ESCO’s, industrial, and more. FSG’s 3,200 dedicated employees support the company’s business in all 50 states, Canada, and Puerto Rico. In 2018, FSG’s revenues were in excess of $650 million, ranking it among the top two percent nationally in both wholesale distribution and electrical contracting fields.

Freedom Solar Power is the leader in turnkey solar installations in Texas, Colorado, Florida, Virginia and North Carolina, providing high quality, cost-effective, reliable solar solutions for residential and commercial markets. Based in Austin since 2007, Freedom Solar has installed more than 157 megawatts of solar panels for thousands of homeowners and hundreds of top companies such as Whole Foods, Office Depot, and the University of Texas. Freedom is number 338 on Inc. Magazine's list of the top 500 fastest-growing private companies in America, is recognized as the number one residential solar installer in Texas by Greentech Media (2017-2019), and named a Best Places to Work by the Austin Business Journal in 2019 and by the Houston Business Journal in 2020. EXPERIENCE: Our installation team is NABCEP certified and has over 30 years of experience installing complex, custom projects in the residential, commercial, and government sectors. QUALITY: We guarantee the highest standards in residential and commercial construction. We specialize in roof mounts, ground mounts, pole mounts, carport/parking structures, and off-grid battery back-up systems. CUSTOMER SERVICE: We handle every aspect of solar power installations—including financing, technology evaluation, engineering and design, construction, monitoring, and ongoing maintenance and support—to ensure the most efficient and reliable solution and exceed customers'​ expectations.

Electric Power Engineers, LLC (EPE) is a leading consulting engineering firm focused on the energy transition, providing power systems engineering services to utilities, generation owners, developers and other energy industry stakeholders. Founded in 1968, EPE has been a trusted partner to the power industry by providing our extensive experience in the evolution of the electric grid, from performing transmission and distribution planning studies to integrating renewable generation and energy storage. EPE offers a wide range of services with a leadership team that brings these services together when necessary to provide a holistic and unique solution to the challenges within the power industry. Our expertise is extensive particularly in the Electric Reliability Council of Texas (ERCOT), as well as Southwest Power Pool (SPP), California Independent System Operator (CAISO), Western Electricity Coordinating Council (WECC), Midwest Independent Transmission System Operator (MISO) and New York Independent System Operator (NYISO). At EPE, there are no geographical limitations to where our services extend. Our world-wide experience allows us to bring solutions from around the globe to your project.

Miscellaneous Steel Industries is a construction company based out of 400 Bunton Creek Rd, Kyle, Texas, United States.

Southwest Electrical Contracting Services, Ltd. is a limited partnership formed on April 20, 2004. We exist to furnish quality electrical contracting services to the South Texas and surrounding areas. Taking advantage of proven financial strength and many local contacts, Southwest Electric has completed over $400 Million in electrical construction work in its fourteen years of business. Southwest Electric also has an extensive Service, Controls, and Industrial Department that services projects across the country. Southwest Electric currently staffs 450+ field employees, with an overall bonding capacity of $50 Million, and a single job capacity of $25 Million. We are a member of the Independent Electrical Contractors Association, The Association of General Contractors, and The Association of Builders and Contractors. Southwest Electric trains apprentice electricians through its IEC affiliation and its support of the N.E.I.S.D. electrical program at MacArthur High School. Southwest Electric is a closely held partnership that can demonstrate financial strength by references in the trades, vendors and general contractor ranks.