Hawaiian Electric Industries, Inc. (HEI; NYSE: HE) is the largest supplier of electricity in the state of Hawaii, supplying power to 95% of Hawaii's population through its electric utilities: Hawaiian Electric Company, Inc., Hawai'i Electric Light Company, Inc. and Maui Electric Company, Limited. In addition, HEI owns a financial institution serving Hawaii, American Savings Bank, and a clean energy and sustainability company, Pacific Current LLC.

HECO, HELCO, and MECO employ more than 2,000 people. Approximately 20,000 Hawaii residents are shareholders of HECO’s parent company, Hawaiian Electric Industries. The company is headquartered in Honolulu. Net income was $219 million on sales of $2.874B for 2019.

The island of Kauai is the only Hawaiian island not supplied by HEI. Instead, the consumer-owned Kauai Island Utility Cooperative manages that island's electricity.