What Core Tech International does

Core Tech International is a privately held Guam-based multi-industry conglomerate founded in 1991 as Sun Woo Corporation and reorganized under its current name. It operates one of the largest construction companies in Micronesia, providing general engineering, general building, and specialty contracting services for residential, commercial, educational, hospitality, and military projects, and is the largest real estate development and property management firm in Micronesia through subsidiary Core Tech Development. The group also includes a US Treasury-certified Community Development Financing Institution (Core Tech Capital), a local newspaper (The Guam Daily Post), and operating subsidiaries covering concrete production, captive insurance, renewable energy, waste collection (LAGU), and facilities management (GFFI). Core Tech self-describes as the largest employer and fastest-growing company in Guam, with a combined workforce of more than 1,200 people.

The company's technical foundation is physical rather than digital: vertically integrated construction operations include two concrete batch plants (Ukudu and Andersen), an owned quarry, a 9-acre precast yard, 90,000 square feet of warehouse space, workforce housing for up to 2,000 workers, and an equipment fleet valued at over $20 million. In-house expertise spans 82+ architects and engineers, supported by 12 CPAs, 8 property compliance specialists, and 2 attorneys, enabling end-to-end design-build delivery. Sustainability and safety are central operating credentials, evidenced by LEED Silver certification on the GPA-GWA Gloria B. Nelson Public Service Building and consecutive STEP Gold/Platinum and ABC Accredited Quality Contractor awards since 2004, culminating in the 2025 and 2026 National Health and Safety Pinnacle Awards from the Associated Builders and Contractors.

Core Tech's business model combines project-based construction contracting (single contract values disclosed in the $16.7M–$58.5M range) with recurring revenue from residential property management and a US Treasury-certified CDFI lending portfolio. Its go-to-market is direct enterprise and government sales, primarily through competitive bidding on DoD-sponsored work (often via an AMEC joint venture), Guam DOE and GPA/GWA procurements, and direct leasing at owned residential complexes including Summer Green, Summerville, and Summer Homes. No public pricing exists; project economics are derived from competitive bids. Customer concentration is high, anchored by US Department of Defense, Guam DOE, GPA/GWA, and select commercial clients such as Lotte Hotel Group, with residential and media operations providing modest recurring diversification.

Name

Core Tech International

Legal name

Core Tech International

Website

https://coretechintl.com

Company type

Private

Founded year

1991

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Core Tech International is a privately held Guam-based conglomerate founded in 1991, operating the largest construction, real estate development, and property management platforms in Micronesia, alongside a US Treasury-certified CDFI lender and a portfolio of vertically integrated subsidiaries serving government, military, and commercial clients.

Ownership category

akta.pro rank

Product category

Construction and Real Estate Services

NAICS

Industrial Building Construction (23621), Other Specialty Trade Contractors (2389), Poured Concrete Foundation and Structure Contractors (23811)

SIC

Heavy Construction Other Than Bldg Const - Contractors (1600), Investors, Nec (6799)

akta.pro primary industry

Specialty Education Facilities Construction (Labs, STEM, CTE Shops, Arts, Athletics) (EDAEABAI)

Keywords

• General construction contracting
• Real estate development
• Property management
• Community development financing
• Military construction

Headquarters

HQ city

Tamuín

HQ country

Mexico

HQ region

Latin America

Offices4 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Supply Chain, Operations, Infrastructure, Marketing or Sales

Revenue model

1. General Construction Contracting: Primary revenue from construction projects including residential, commercial, educational, and military facilities. Projects range from $16.7M to $58.5M in contract value.
2. Real Estate Development: Development and ownership of residential complexes including Summer Green, Summerville, and Summer Homes properties through Core Tech Development
3. Property Management: Property management services for residential apartment complexes including leasing, maintenance, and tenant services
4. Community Development Financing: US Treasury-certified Community Development Financial Institution through Core Tech Capital with one of the largest investments and loan portfolios of any non-bank in Micronesia
5. Specialty Operations: Concrete production, captive insurance, renewable energy, waste management (LAGU), and media operations (Guam Daily Post)

Go-to-market motion2 records

Distribution channels4 records

Marketing channels6 records

Core offering

Core Tech International is a Guam-based multi-industry conglomerate providing general construction contracting (residential, commercial, educational, and military projects), real estate development and property management, and community development financing. The company operates vertically integrated construction capabilities including in-house concrete batch plants, quarry operations, precast manufacturing, and an equipment fleet valued at over $20 million to execute large-scale projects.

Product overview

Core Tech International is a multi-industry conglomerate operating primarily in Guam and Micronesia. The company comprises a diverse group of companies with construction (Core Tech International), real estate development and property management (Core Tech Development), finance (Core Tech Capital), media (Guam Daily Post), and specialized services (Core Tech Concrete, Core Tech Captive Insurance, Core Tech Renewable Energy, LAGU waste management, and GFFI property management) as its core business segments. The construction division serves residential, commercial, educational, and military markets, while the real estate portfolio includes affordable housing complexes, commercial properties, and property management services across Guam.

Differentiator

Problem solved

Functional benefit

Products and services

• Core Tech International Construction Services
• Core Tech Development - Real Estate Development and Property Management
• Core Tech Capital - Community Development Financing
• Core Tech Concrete
• LAGU Waste Management
• Guam Facilities Foundation Inc. (GFFI) Property Management
• ACE Builders Military Housing Referral Services
• Core Tech Captive Insurance
• Core Tech Renewable Energy
• Guam Daily Post

Quantifiable outcome

• Zero safety incidents - Completed Lotte Hotel renovation ($16.7M) with zero time-lost safety incidents
• +5 more outcomes

Named customers7 records

Segments6 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

15 partnerships are on record, tiered core and minor.

• AMECcoreStrategic or Co-development PartnerJoint venture partnership with AMEC for DoD-sponsored construction projects. Together, Core Tech and AMEC have been awarded more than $240 million in DoD construction projects, including the two largest hangars in the world.
• KajimaminorStrategic or Co-development PartnerPartner logo displayed on Core Tech website partnerships section
• Hawaiian DredgingminorStrategic or Co-development PartnerPartner logo displayed on Core Tech website partnerships section
• LAGU (Lagoon?)coreChannel Partner/ Reseller/ DistributorLAGU is a Core Tech subsidiary providing waste collection and disposal services. Operates from 1350 N Marine Corps Drive with fleet of waste collection vehicles and processing equipment.
• GFFI (Guam Facilities Foundation Inc.)coreChannel Partner/ Reseller/ DistributorGFFI is a Core Tech subsidiary providing property maintenance and facilities management. Manages properties including Summer Town Estates, Summer Homes, Summer Green, Summer Breeze, and Summer Vista.
• Kinaole FoundationminorGTM or Marketing PartnerPartner logo displayed on Core Tech website partnerships section
• GPSI (Guam Protective Services)minorGTM or Marketing PartnerPartner logo displayed on Core Tech website partnerships section
• Dusit Thani Guam ResortminorGTM or Marketing PartnerAffiliate partner - Dusit Beach Resort Guam and Dusit Thani Guam Resort are listed on the affiliates page
• Summer TowersminorGTM or Marketing PartnerAffiliate partner listed on the Core Tech affiliates page
• The PlazaminorGTM or Marketing PartnerAffiliate partner listed on the Core Tech affiliates page
• BASULAminorGTM or Marketing PartnerAffiliate partner listed on the Core Tech affiliates page
• Comete (Aquarium)minorGTM or Marketing PartnerAffiliate partner listed on the Core Tech affiliates page
• Guam Daily PostminorGTM or Marketing PartnerCore Tech acquired The Guam Daily Post, a local independent newspaper that continues to grow in revenue and distribution
• Guam Facilities Foundation Inc. (GFFI)coreGTM or Marketing PartnerSubsidiary managing property maintenance, housekeeping, and facilities management services across Core Tech residential properties
• ACE Builders, LLCcoreChannel Partner/ Reseller/ DistributorACE Builders provides housing referral services for military families, including assistance with on-base housing, off-base housing (OHA), and temporary lodging allowance

Scale indicators15 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Black Construction Corporation: One of Guam's largest general contractors, frequently bidding on the same DoD, government, and commercial construction projects as Core Tech. Most direct head-to-head competitor on the island for military and federal work.
• Hawaiian Dredging Construction Company: Pacific-focused heavy construction firm named as a Core Tech affiliate. Operates across Hawaii and Guam with overlapping military, civil, and commercial construction capabilities, making it both a partner and a regional peer.
• AMEC (now Wood Group): Core Tech's JV partner on the $240M+ DoD contract portfolio. Comparable as a large engineering and construction services firm pursuing federal and military projects; the JV relationship makes it both a partner and a peer on Guam work.

Broad incumbents

• Tutor Perini Corporation: Large U.S. heavy civil and building contractor with substantial federal and military contract exposure. Comparable in scale and DoD project mix, though it operates across the mainland U.S. rather than concentrating in the Pacific.
• Granite Construction Incorporated: U.S.-based infrastructure and heavy civil contractor with significant federal and public works exposure. Comparable in pursuit of large government contracts and vertically integrated materials capabilities, though at national scale.
• Fluor Corporation: Global engineering, procurement, fabrication, and construction firm with deep U.S. federal and DoD portfolio. Comparable as a prime contractor on large government projects though it operates at much larger scale and globally.
• AECOM: Global infrastructure consulting and construction services firm with significant federal and military work. Overlaps with Core Tech's DoD and government construction pursuit, though at vastly greater scale and breadth.
• Kiewit Corporation: One of North America's largest construction and engineering organizations with major federal, military, and civil infrastructure exposure. Comparable in vertically integrated execution and pursuit of large government contracts.
• Hensel Phelps Construction: Major U.S. general contractor and construction manager with substantial federal, military, and commercial building work. Comparable in safety-driven culture and integrated delivery of large government facilities.

Regional players

• Kajima Corporation: Major Japanese construction and real estate developer named as a Core Tech affiliate. Comparable in diversified construction and real estate operations, though it primarily serves Japan and select Asia-Pacific markets rather than Guam.

Market position

Strengths5 records

Weaknesses3 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/coretechintl
• LinkedInlinkedin.com/company/core-tech-international

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries9 records

Funding overview

Funding rounds1 record

Investors1 record

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Core Tech International