© 2018 by Core Tech International 388 S. Marine Corps Dr. Ste. 400, Tamuning GU 96913 • Tel. (671) 473-5000 • Email: main@coretechintl.com


*Time lapse is for visual effect only.


Core Tech International is a full-service general contractor with a proud tradition of success in providing the highest standards of planning, estimating, engineering, and construction services on a variety of award-winning projects. 


As a local, Guam-based company, Core Tech understands just how challenging supply chain logistics and component sourcing can be in an island environment. That is why Core Tech maintains a full complement of construction support resources from construction specialists and engineers to fully stocked warehouses, quarry and batch plant facilities, and heavy equipment to ensure that every project is delivered with quality, on time, and within budget.


With an uncompromised record of quality, safety, and efficiency, Core Tech has established a reputation of delivering client satisfaction project after project. Core Tech has a long list of success in winning and completing military and commercial projects including civil and infrastructure works, schools, retail and industrial complexes, institutional facilities, and a host of residential and specialized facilities.



Residential, Multi-family & Commercial

Core Tech has built hundreds of homes, low-income housing developments, senior housing divisions, commercial complexes, and hotel renovations. Of these, we are proud to showcase the newly-completed Summer Homes, Summer Green, and Summerville complexes as well as the ongoing Summer Oceanview Towers project, which will feature a mix of for-sale and rental units along with hotel, restaurant, and retail space.

Educational Facilities & Utilities

Core Tech has constructed more schools on Guam than any other general contractor.


In response to the dire need on Guam, Core Tech redeveloped and repurposed an abandoned Naval housing facility into a multi-use educational campus that includes a high school, charter school and the new headquarters for the Guam Department of Education.

Military & Defense Projects

Core Tech is a major participant in the military buildup related to the base realignment of American military forces in the Pacific. 


Our company is currently bidding on major upcoming military projects, and we have already been awarded, along with our JV partner AMEC, more than $240 million in DoD-sponsored construction projects, including the two largest hangars in the world.




Guam Lotte Hotel Renovation
Summer Homes Apartments
Guam Power Authority
Astumbo Middle School
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Core Tech Concrete
Core Tech Micronesia
Core Tech Asset Management
Core Tech Development
Core Tech Korea
Core Tech Energy
The Guam Daily Post
Core Tech Capital





For any inquiries, questions, or commendations, please call (671) 473-5000 or fill out the following form:

Corporate Office

388 S. Marine Corps Drive, Suite 400

Tamuning, Guam 96913



Tel: 671-473-5000

Fax: 671-473-5500

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