Building Guam Since 1975

Get started with Base Corp.
Base Corporation is one of Guam's longest serving and largest construction companies. The company established in 1975 as part of Sammi Rock Products, Inc. and has over 30 years of experience in the quarry business, as well as expertise in the development of commercial, custom residential subdivision, hotel, and warehouse properties, government and military projects. Over the years, Base Corporation has developed a close relationship with a number of clients through progressive and responsive services for their diverse needs. As a result, the group is proud of its excellent reputation which it has built with these clients. We welcome your business. Let's build for you.
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Building Guam Since 1975

Get started with Base Corp.


Base Corp's care for the local community and environment is embedded in its business model. The company has developed positive and crucial working relationships with various stakeholders over the years.


Base Corp. understands that every project needs expertise, skilled employees, appropriate equipment, and many resources. This is why, over the years we have invested in these resources which we activate and manage for each project. 


Safety is our priority

"Safety First" is not only something we put on signs or is something we preach and practice. Safety is a top priority for Base Corp., at every job site, every day. We train and enforce best practices to prevent incidents. 

Many of our Development Projects have become landmarks on Guam.

Client Testimonials

  • "Base Corporation is a large scale contractor who I am confident could handle our large scale needs."

    Nathan Artero , Housing Development
  • "Absolute professionals in the construction industry on Guam..."

    Michelle Lee , Commercial Sector
  • "Base Corp never missed a deadline. From drawings to final build, my agency appreciates their on time delivery of the project."

    John Hernandez , Infrastructure