HEI
Holding CompaniesHawaii, United States51-200 Employees
HEI is a holding company comprised of a family of Hawaii-based entities that deliver the energy infrastructure supporting the state's economic and community activity. Based in Honolulu, Hawaii, the group operates in the energy sector to maintain and develop infrastructure essential to daily life. The organization is mid-sized and focused on serving the Hawaiian market through its regional portfolio of assets. In June 2026, HEI Civil announced dual CSP certifications for Joosten and Hemric, illustrating an emphasis on safety leadership within the company.