Guam and CNMI mobile and internet carrier founded in 1986, serving roughly 90,000 wireless customers; absorbed iConnect Guam's network in 2020 and partnered with SK Telecom on 5G fixed wireless.

Family-founded 1984 Guam conglomerate with roughly $99.7M in annual revenue across automotive sales, food/grocery wholesale, hospitality, real estate and logistics, operating 22 locations across Guam, the CNMI, Palau and the Marshall Islands.

Guam's largest locally owned supermarket chain, operating since 1950 with eight stores, six SuperDrug pharmacies and a wholesale produce division (PDC Wholesale); the island's largest buyer of local produce.

Guam's largest locally owned bank, opened in 1972 and headquartered in Hagatna; operates roughly 16 branches across Guam and has expanded into CNMI, Palau, and the U.S. West Coast.

60-year-old Guam general/heavy construction firm and Tutor Perini subsidiary; a major contractor on the U.S. military buildup, including a $122M Naval Facilities Engineering Systems Command machine-gun-range contract at Andersen Air Force Base's Northwest Field.

136-bed private acute-care hospital in Dededo, Guam's first private hospital when it opened in 2015; acquired by nonprofit Blue Continent Healthcare Guam Medical City in September 2025, which is expanding capacity to 186 beds to serve Guam, CNMI, FSM, Palau and the Marshall Islands.

Guam's market-leading insurer, founded in 1938 in Hagatna; its SelectCare health plan covers over 35,000 members including GovGuam and CNMI government employees and collects more than $100M in annual premiums.

Tamuning-based general contractor founded in 1991; with JV partner AMEC has won more than $240M in DoD-sponsored Guam construction projects including some of the world's largest aircraft hangars, alongside residential and commercial builds.

Guam's largest mobile, TV and internet provider, formed from the merger of Guamcell Communications and HafaTel and acquired by Japan's NTT DOCOMO in 2006; headquartered in Tamuning.

30-story, Thai-owned Dusit International resort on Tumon Bay that opened in 2015, one of the newer additions to Guam's hotel tourism corridor.

Guam project office of NYSE-listed Granite Construction Inc., active on Marine Corps Base Camp Blaz as part of Granite-Obayashi joint ventures awarded $113M and $158M Department of Defense contracts for command-center and engineer-support-battalion facilities.

Guam's longtime full-service telecom carrier, providing phone, cellular, internet and TV over its own buried fiber-copper network; majority-owned by Japan's Advantage Partners LLP since 2011.

Guam's only public hospital, a government nonprofit corporation created in 1977 with 158 acute-care beds plus a 40-bed skilled nursing facility, serving over 159,000 residents from its Tamuning campus.

450-room beachfront resort on Tumon Bay managed by Hyatt International, one of Guam's flagship tourism-sector hotels serving the territory's Japanese and Korean visitor market.

201-room golf and family resort in Yona operated by Japan's LeoPalace21 Corporation, occupying roughly 1% of Guam's total land area with 36 holes of golf and convention facilities.