Enova (U.S. corporation)

Sempra
Company type	Public
Industry	Utility holding company
Founded	1998
Headquarters	San Diego, California, United States
Area served	North America
Key people	Jeffrey Martin (Chairman and CEO)
Products	Electric and natural gas infrastructure services
Number of employees	20,000+ (2023)
Website	sempra.com

Adapted from the English Wikipedia article Enova (U.S. corporation), available under CC BY-SA 4.0Updated 7 August 2025

Sempra is a publicly traded utility holding company based in San Diego, California, operating primarily within North America. It stands as one of the largest utility holding firms in the United States, providing services to close to 40 million customers. The company's main business revolves around electric and natural gas infrastructure, managed through subsidiaries such as Southern California Gas Company (SoCalGas), San Diego Gas & Electric (SDGE), Oncor Electric Delivery Company in Texas, and Sempra Infrastructure.

By 2023, Sempra reported total assets exceeding $87.2 billion and employed a workforce of over 20,000 individuals. Leadership is under chairman and CEO Jeffrey Martin, who assumed his position in May 2018.

Sempra holds the #246 spot on the 2024 Fortune 500 list and ranks #366 on the Forbes Global 2000. For the 14th year running in 2024, Fortune Magazine included Sempra among the World's Most Admired Companies, while Newsweek recognized it as one of America's Most Responsible Companies for six consecutive years.

1998–2018

Originally named Sempra Energy, the company was created in 1998 through the merger of Pacific Enterprises, based in Los Angeles and parent to SoCalGas, and Enova Corporation, which owned San Diego Gas & Electric.

In 1999, Sempra broadened its reach into Latin America by acquiring Chilquinta Energia in Chile and Luz Del Sur in Peru, tapping into emerging energy markets within the region.

By 2003, Sempra Energy Resources had completed several advanced power generation projects across Arizona, California, and New Mexico. The company confronted legal challenges related to alleged market manipulation during California’s 2001 electricity crisis, ultimately settling claims by 2010 with payments totaling nearly $800 million without admitting liability.

The Sempra Foundation was founded in 2007 to support initiatives including climate action, economic development, diversity and inclusion efforts, and disaster relief. The foundation also encourages employee involvement through matching gift programs.

In 2018, Texas regulatory authorities approved Sempra’s $9.45 billion acquisition of a controlling interest in Oncor Electric Delivery Company, marking a major investment within Texas’s energy infrastructure sector.

2019–present

In January 2019, Sempra took Pacific Gas and Electric's place on the Dow Jones Utility Average.

Between 2018 and 2019, Sempra sold its U.S.-based renewable energy assets and non-utility natural gas storage holdings for about $2.5 billion to concentrate on transmission and distribution infrastructure across North America.

March 2019 saw Sempra and Oncor jointly acquire InfraREIT along with a half stake in Sharyland Utilities—strategic investments characterized by low risk within Texas's growing utility market.

In 2020, Sempra exited South America by divesting its Peruvian utility Luz del Sur for $3.59 billion and its Chilean operations for $2.23 billion to China’s State Grid International Development Ltd.

The company rebranded itself as simply Sempra in June 2021, removing "Energy" from its name to highlight its focus on core infrastructure assets.

Following Russia’s invasion of Ukraine in 2022, Sempra Infrastructure secured partnerships with European companies to supply U.S. liquefied natural gas (LNG), supporting Europe’s efforts to diversify energy sources away from Russian dependence.

In 2024, Sempra unveiled an unprecedented $48 billion capital investment plan spanning from 2023 to 2028 aimed at improving safety, reliability, and advancing cleaner energy delivery across its three main growth platforms operating in California and Texas.

Current

Sempra Infrastructure: Established in 2021 through the integration of Sempra LNG and IEnova, this entity focuses on the development, construction, and investment in energy infrastructure across North America. Its portfolio encompasses liquefied natural gas (LNG), net-zero initiatives, energy networks, and clean energy projects. Notable undertakings include the Cameron LNG joint venture in Louisiana, the Port Arthur LNG liquefaction facility in Texas, along with three planned LNG export sites on Mexico’s Pacific Coast: Energía Costa Azul LNG, Vista Pacífico LNG, and Salina Cruz.
Southern California Gas Company: Headquartered in Los Angeles, SoCalGas stands as the largest natural gas distribution utility in the United States, serving around 22 million customers. The company is actively advancing hydrogen and net-zero strategies, such as the proposed Angeles Link green hydrogen infrastructure initiative.
San Diego Gas & Electric: SDGE delivers both electricity and natural gas services to close to 3.7 million customers throughout San Diego and southern Orange Counties.
Oncor Electric Delivery Company LLC: Operating out of Dallas, Oncor manages Texas’s most extensive electric transmission and distribution system, catering to nearly 13 million customers. Sempra holds an approximate 80% ownership stake in Oncor. In 2019, Oncor expanded its transmission reach by acquiring InfraREIT, enhancing its presence across Central, North, and West Texas.

Former

These former subsidiaries have been reorganized under Sempra LNG & Midstream and Sempra Renewables:

Sempra U.S. Gas & Power: Managed over 2,000 megawatts of renewable generation capacity while operating natural gas storage facilities, pipelines, and distribution utilities.
Sempra Generation: Maintained ownership interests in power plants located across five U.S. states and Mexico and possessed land assets for solar and wind energy development.
Sempra Pipelines & Storage: Controlled natural gas storage properties in Alabama and Louisiana; held stakes in energy firms within Argentina, Chile (Chilquinta Energía), and Peru (Luz del Sur); and operated extensive pipeline systems throughout Mexico.
Sempra LNG: Developed and managed LNG import terminals including Energía Costa Azul in Baja California and Cameron LNG in Louisiana.
Sempra Commodities: Engaged in marketing and trading activities involving natural gas, liquids, electricity, petroleum products, coal, emissions credits, ethanol, and base metals through a partnership initiated in 2008. The Royal Bank of Scotland’s interest was sold to Noble Americas Gas and Power in 2010.
IEnova: Recognized as one of Mexico’s leading private energy companies concentrating on the development and operation of energy infrastructure.
PXiSE Energy Solutions: A San Diego-based firm partially owned by Mitsui & Co., specializing in cutting-edge power-grid management technologies for renewable energy developers and grid operators; divested by Sempra in 2021.

Awards and recognition

In 2024, Sempra earned a spot among Fortune Magazine's World's Most Admired Companies, while Newsweek acknowledged it as one of America's Most Responsible Companies. The Wall Street Journal also included Sempra on its list of the 250 Best-Managed Companies. The corporation has received numerous honors for its commitment to diversity and inclusion, featuring on Bloomberg's Gender Equality Index, Forbes Best Employers for Diversity rankings, and Fair360's #1 Top Utilities list. Additionally, Sempra is listed on sustainability-oriented stock indexes such as the Dow Jones Sustainability Index North America. Its subsidiaries frequently receive awards recognizing excellence in reliability, resilience, technological innovation, and corporate social responsibility.

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