Duke Energy Corporation, together with its subsidiaries, operates as an energy company in the United States. It operates through two segments: Electric Utilities and Infrastructure (EU&I), and Gas Utilities and Infrastructure (GU&I). The EU&I segment generates, transmits, distributes, and sells electricity in the Carolinas, Florida, and the Midwest. It generates electricity through coal, hydroelectric, natural gas, oil, solar and wind sources, renewables, and nuclear fuel. This segment also engages in the wholesale of electricity to municipalities, electric cooperative utilities, and load-serving entities. The GU&I segment distributes natural gas to residential, commercial, industrial, and power generation natural gas customers; and invests in pipeline transmission projects, renewable natural gas projects, and natural gas storage facilities. The company was formerly known as Duke Energy Holding Corp. and changed its name to Duke Energy Corporation in April 2006. Duke Energy Corporation was founded in 1904 and is headquartered in Charlotte, North Carolina.

Evergy, Inc., together with its subsidiaries, engages in the generation, transmission, distribution, and sale of electricity in the United States. The company generates electricity through coal, landfill gas, uranium, and natural gas and oil sources, as well as solar, wind, other renewable sources. It serves residences, commercial firms, industrials, municipalities, and other electric utilities. The company was incorporated in 2017 and is headquartered in Kansas City, Missouri.

Avangrid, Inc., an energy services holding company, engages in the regulated energy transmission and distribution, and renewable energy generation businesses in the United States. The company operates through Networks and Renewables segments. It is involved in the generation, transmission, and distribution of electricity; and distribution, transportation, and sale of natural gas. In addition, the company operates renewable energy generation facilities primarily using onshore wind power, as well as solar, biomass, and thermal power. Further, it delivers natural gas and electricity to residential, commercial, and institutional customers through its regulated utilities in New York, Maine, Connecticut, and Massachusetts; and sells its output to investor-owned utilities, public utilities, and other credit-worthy entities, as well as generates and provides power and other services to federal and state agencies, institutional retail, and joint action agencies. Additionally, the company delivers thermal output to wholesale customers in the Western United States. It owns eight electric and natural gas utilities, serving 3.3 million customers in New York and New England, as well as owns and operates 9.3 gigawatts of electricity capacity primarily through wind power in 22 states. Avangrid, Inc. was incorporated in 1997 and is headquartered in Orange, Connecticut. The company operates as a subsidiary of Iberdrola, S.A.

IDACORP, Inc., together with its subsidiaries, engages in the generation, transmission, distribution, purchase, and sale of electric energy in the United States. The company operates 17 hydropower generating plants located in southern Idaho and eastern Oregon; three natural gas-fired plants in southern Idaho; and interests in two coal-fired steam electric generating plants located in Wyoming and Nevada. As of December 31, 2023, it had approximately 4,762 pole-miles of high-voltage transmission lines; 23 step-up transmission substations located at power plants; 21 transmission substations; 11 switching stations; 30 mixed-use transmission and distribution substations; 186 energized distribution substations; and 29,714 pole-miles of distribution lines, and 131 MW of battery storage, as well as provides electric utility services to approximately 633,000 retail customers in southern Idaho and eastern Oregon. The company serves commercial and industrial customers, which involved in food processing, electronics and general manufacturing, agriculture, health care, government, and education. It also invests in housing and other real estate tax credit investments. IDACORP, Inc. was founded in 1915 and is headquartered in Boise, Idaho.

Ormat Technologies, Inc. engages in the geothermal and recovered energy power business in the United States, Indonesia, Kenya, Turkey, Chile, Guatemala, Guadeloupe, New Zealand, Honduras, and internationally. It operates in three segments: Electricity, Product, and Energy Storage. The Electricity segment develops, builds, owns, and operates geothermal, solar photovoltaic, and recovered energy-based power plants; and sells electricity. The Product segment designs, manufactures, and sells equipment for geothermal and recovered energy-based electricity generation; and provides services relating to the engineering, procurement, construction, operation, and maintenance of geothermal and recovered energy-based power plants. This segment serves contractors; and owners and operators of interstate natural gas pipelines, gas processing plants, and cement plants, as well as companies in other energy-intensive industrial processes. The Energy Storage segment offers battery energy storage systems and related services. Ormat Technologies, Inc. was founded in 1965 and is headquartered in Reno, Nevada.

First Hawaiian, Inc. operates as a bank holding company for First Hawaiian Bank that provides a range of banking products and services to consumer and commercial customers in the United States. It operates in three segments: Retail Banking, Commercial Banking, and Treasury and Other. The company offers various deposit products, including checking, savings, and time deposit accounts, and other deposit accounts. It also provides residential and commercial mortgage loans, home equity lines of credit and loans, automobile loans and leases, secured and unsecured lines of credit, installment loans, small business loans and leases, and construction lending, as well as commercial lease and auto dealer financing. In addition, the company offers wealth management, personal installment, individual investment and financial planning, insurance protection, trust and estate, private banking, investment management, retirement planning, and merchant processing services, as well as consumer and commercial credit cards. The company was formerly known as BancWest Corporation and changed its name to First Hawaiian, Inc. in April 2016. First Hawaiian, Inc. was founded in 1858 and is headquartered in Honolulu, Hawaii.

Bank of Hawaii Corporation operates as the bank holding company for Bank of Hawaii that provides various financial products and services in Hawaii, Guam, and other Pacific Islands. It operates in three segments: Consumer Banking, Commercial Banking, and Treasury and Other. The Consumer Banking segment offers checking, savings, and time deposit accounts; residential mortgage loans, home equity lines of credit, automobile loans and leases, overdraft lines of credit, installment loans, small business loans and leases, and credit cards; private and international client banking, investment, credit, and trust services to individuals and families, as well as high-net-worth individuals; investment management; institutional investment advisory services to corporations, government entities, and foundations; and brokerage offerings, including equities, mutual funds, life insurance, and annuity products. The Commercial Banking segment provides corporate banking, commercial real estate loans, commercial lease financing, auto dealer financing, and deposit products. This segment also offers commercial lending and deposit products to middle-market and large companies, and government entities; commercial real estate mortgages to investors, developers, and builders; and international banking and merchant services. The Treasury and Other segment provides corporate asset and liability management services, including interest rate risk management and foreign exchange services. Bank of Hawaii Corporation was founded in 1897 and is headquartered in Honolulu, Hawaii.

Territorial Bancorp Inc. operates as the holding company for Territorial Savings Bank that engages in the provision of various financial services to individuals, families, and businesses in the State of Hawaii. The company offers a range of deposit accounts, including passbook and statement savings, money market, commercial and regular checking, and Super NOW accounts, as well as certificates of deposit. It also provides various loan products, such as one-to four-family residential mortgage loans; home equity loans; consumer loans; and multi-family mortgage, commercial business, construction, commercial real estate, and other nonresidential real estate loans, as well as lines of credit and investment securities. In addition, the company is involved in the insurance agency activities. Further, it provides various non-deposit investments comprising annuities and mutual funds through a third-party broker-dealer. The company was founded in 1921 and is headquartered in Honolulu, Hawaii.