Quanta Services
Quanta Services provides specialty contracting and infrastructure services for electric power, gas, pipeline, and broader energy projects in the United States, Canada, Australia, and other regions. Through its electric power infrastructure and underground utility and infrastructure segments, it designs, installs, upgrades, repairs, and maintains electric power transmission and distribution networks, substations, and related smart grid technologies; performs engineering, procurement, and construction for electrical facilities; and supports solar, wind, and natural gas generation facilities and associated switchyards and transmission lines. It also offers pipeline and industrial infrastructure services, including pipeline transmission and gathering systems, storage facilities, and related trenching, drilling, welding, and fabrication; as well as fueling, water, and sewer infrastructure, pipeline protection, integrity testing, and rehabilitation. The firm provides emergency restoration services and high-priority turnaround projects and serves electric power, energy, and communications customers along with commercial, industrial, and governmental entities. Quanta operates primarily in the United States, Canada, and Australia and is headquartered in Houston.
Top Stages
Past deals in Electric Grid
Utilidata
Series C in 2025
Utilidata develops energy software that optimizes power grids using real-time distributed intelligence. Its platform, Utilidata, analyzes grid conditions continuously, integrates renewable sources seamlessly, detects anomalies, and improves operational efficiency. Founded in 1983, the company is headquartered in Providence, Rhode Island.
eSmart Systems
Venture Round in 2024
Founded in 2012, eSmart Systems develops AI-driven software solutions for the energy industry. Its cloud-born platform collects and analyzes vast data quantities from sensors in real-time, enabling optimized energy decisions, resource savings, and predictive maintenance. The company offers tailored solutions for utilities and applications for consumers, with a focus on global markets.
TS Conductor
Venture Round in 2024
TS Conductor specializes in advanced electrical transmission conductors. Utilizing a carbon-fiber-composite core instead of steel, their products are lighter, stronger, and more efficient, carrying higher current with reduced energy loss.
The Hallen Construction Company
Acquisition in 2019
The Hallen Construction Company provides distribution contracting and construction services for utility pipelines and electrical infrastructure in the New York metropolitan area. It handles gas main and service installation, metering and regulation stations, vacuum excavation, emergency response, and transmission pipeline installation, as well as electric installations for transmission and distribution networks. The company serves utilities, grid operators, pipeline operators, public agencies, and private sector clients on gas distribution projects and related underground infrastructure. Founded in 1927 and based in Plainview, New York, it maintains an additional office in Maspeth.
Valard Construction
Acquisition in 2010
Valard Construction is a Canadian utility contractor established in 1978, specializing in the engineering, procurement, construction, and maintenance of infrastructure projects for the utilities, independent power producers, mining, and oil and gas sectors. The company has a proven track record of delivering projects safely, on time, and within budget, regardless of size or complexity. Valard’s expertise encompasses a wide range of services, including the construction of substations, turbine foundations, grid interconnections, and transmission lines. The firm is recognized for its commitment to quality, fostering close collaboration with clients to minimize costs and eliminate project overruns, which has led to a strong reputation and repeat business.
InfraSource
Acquisition in 2007
InfraSource is one of the largest specialty contractors in the United States, focusing on utility transmission and distribution infrastructure across various energy sectors, including electric power, natural gas, and oil. The company offers a comprehensive range of services encompassing design, engineering, procurement, construction, testing, and maintenance of utility infrastructure. Its subsidiaries, including Dashiell, M.J. Electric, and Transmission Services, enhance its capabilities by providing specialized solutions such as substation design, dark fiber leasing, and telecommunications support. By delivering end-to-end transmission and distribution solutions, InfraSource plays a critical role in supporting the demands of energy and telecommunications sectors in the U.S.
North Houston Pole Line
Acquisition in 2001
North Houston Pole Line, L.P. is a Houston-based company specializing in infrastructure solutions for the electric power industry in Texas. The firm offers a comprehensive range of services, including the design and installation of substation projects, which encompass site preparation, foundation construction, structural steel erection, and the installation of electrical apparatus such as breakers, switches, transformers, and ground grids. Additionally, North Houston Pole Line provides construction and repair services for overhead and underground distribution systems, fiber interconnects, and gas rehabilitation. The company is equipped to handle emergency restoration and employs techniques like directional boring to enhance its service offerings.
Arby Construction
Acquisition in 2000
Arby Construction, Inc. provides network solutions for gas and electric power, telecommunications, and cable industries. The company offers gas distribution systems installation and pipeline construction services; and fiber optic, conduit, and duct installation, as well as fiber optic networks construction services. It also provides underground steel carrier pipe, cable, duct lines, and steam piping installation, as well as construction of manholes and vaults of electrical systems; steel pipe and vessels welding, as well as plastic piping fusion for gas, telcom, and water projects; and directional drilling services.
Taylor Built
Acquisition in 1999
Taylor Built provides power line construction and maintenance services for the electric utility industry.
Utilco
Acquisition in 1999
Utilco, Inc. provides specialty electrical services including installation, maintenance and emergency repair of transmission and distribution lines.
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