Guam · Pacific Region · Est. 2017

MACKS Construction Co.

Building Trust Through Professional Services

A general contracting firm specializing in construction for the U.S. Department of Defense and federal agencies — based in Guam and strategically positioned to support the Pacific military build-up and infrastructure modernization.

2017
Established

Established in 2017 with a strong reputation, MACKS Construction Co. delivers high-quality, innovative construction solutions across commercial, military, and industrial projects — prioritizing safety and client satisfaction on every job.

Our vision is to be a trusted leader in the construction industry, delivering mission-ready solutions through uncompromising integrity, operational excellence, and a steadfast, long-term commitment to the communities we serve in Guam and beyond.

LED BY EXPERIENCED PROFESSIONALS

Our team is committed to delivering excellence in construction, ensuring seamless project execution and client satisfaction.

CEO
Charlie Choi
Vice President
Soo Choi
Managing Director
Alexander Choi
Vice Director
Eugenio Ortillo
Project Engineer
Anthony Turla
Controller
Remedios Tantamco

WHAT WE BUILD

A trusted general contracting firm delivering comprehensive construction services across the federal, commercial, industrial, and residential sectors.

Federal & Defense

U.S. Department of Defense

A trusted general contractor for the U.S. DoD and federal agencies. Based in Guam, we support the Pacific military build-up and infrastructure modernization — navigating stringent federal compliance, quality assurance, safety standards, and security protocols.

Commercial

Commercial Construction

We handle the construction of office spaces, retail outlets, and mixed-use developments — focused on timely completion and optimal functionality to support business operations.

Industrial

Industrial Projects

We undertake large-scale industrial work, including warehouses and manufacturing facilities, with a commitment to safety and efficiency — ensuring operations meet industry standards and regulations.

Residential

Residential Construction

We build custom homes, apartments, and housing developments tailored to client needs — ensuring quality craftsmanship and aesthetic appeal throughout the process.

A CULTURE OF SAFETY ON EVERY SITE

Safety is engineered into how we plan, staff, and deliver work — from the equipment we field to daily practice on site.

Equipment & Technology

We utilize state-of-the-art construction equipment to ensure precision, efficiency, and superior results on all our projects.

Health, Safety & Environment

We prioritize safety through strict regulations, regular training, and risk assessments — maintaining a secure work environment in compliance with federal and OSHA regulations.

DELIVERED ACROSS GUAM

A selection of commercial and federal projects — from private-sector retail to active work on Naval Base Guam and Camp Blaz.

Shell Gas Station

Shell Gas Station

Client · IP&E
Period
2017.12 – 2018.07
Location
Harmon, Guam
Payless Supermarket

Payless Supermarket

Client · Calvo Enterprises
Period
2018.03 – 2018.08
Location
Maite, Guam
Apra Medical & Dental Clinic

Apra Medical & Dental Clinic

Client · Caddell-Nan JV
Period
2019.06 – 2020.03
Location
Piti, Guam (Naval Base)
Cable Landing Station

Cable Landing Station

Client · GTA
Period
2019.12 – 2020.06
Location
Piti, Guam
J-321 Corrosion Control, Ground Ph. II

J-321 Corrosion Control, Ground Ph. II

Client · Caddell-Nan JV
Period
2024.06 – Present
Location
Dededo, Guam (Camp Blaz)
P-325 9th ESB Equipment & Maintenance Facility

P-325 9th ESB Equipment & Maintenance Facility

Client · Granite-Obayashi 2 JV
Period
2024.06 – Present
Location
Dededo, Guam (Camp Blaz)

FEDERAL CONSTRUCTION EXPERIENCE

MACKS’s leadership and team bring hands-on experience delivering completed construction task orders across Andersen Air Force Base and Naval Base Guam.

Completed facility construction Concrete and masonry work Equipment installation by crane

Andersen Air Force Base

  • Base exchange chiller plant replacementJun 2019 · $3.4M
  • Airfield taxiway electrical circuit repairsJun 2018 · $3.1M
  • Squadron headquarters facility renovationJul 2018 · $1.7M
  • Underground electrical feeder circuit replacementMar 2017 · $1.1M
  • Airfield air-switch & cable replacementJul 2017 · $1.0M
  • Support facility constructionMay 2017 · $800K
  • Retail facility renovationMay 2017 · $763K
  • Waterfront dive-locker facility constructionFeb 2017 · $736K
  • Airfield beacon tower constructionJul 2011 · $569K

Naval Base Guam

  • Wastewater lift station & force main replacementMay 2020 · $4.0M
  • Building roof membrane & envelope replacementSep 2015 · $1.5M
  • Facility energy-efficiency improvementsJul 2018 · $1.3M
  • Force-protection perimeter fencingSep 2012 · $1.2M
  • Solar-assisted HVAC energy projectAug 2018 · $1.2M
  • Storage facility repairs & modernizationSep 2012 · $953K
  • Cold storage facility repairsSep 2013 · $799K
  • Fire protection system repair & certificationMay 2018 · $568K
  • Wharf & waterfront structural repairsSep 2013 · $558K

Representative construction task orders reflecting the experience of MACKS’s leadership and team. Full detail available on request.

QUALITY CONSTRUCTION THAT SUPPORTS MISSION READINESS

MACKS Construction Co. is dedicated to delivering construction solutions that uphold the highest standards of integrity and safety, and provide lasting value to our clients and the communities we serve. We welcome your inquiries.

START A CONVERSATION
Office
1380 N. Marine Drive, Ste. 203
Tamuning, Guam 96913
Phone

Let’s connect

Reach out to discuss your project or a teaming opportunity on federal and commercial work in the Pacific region.

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