What Koga Engineering & Construction does

Koga Engineering & Construction, Inc. is a privately held heavy civil construction firm founded in October 1973 by Malcolm T. Koga and headquartered in Honolulu, Hawaii. The company specializes in three core service lines — excavation, utilities construction (waterlines, sewer, drainage), and roadwork — delivered to federal, state, and county government agencies, private developers, and private industry across the Hawaiian Islands of O'ahu, Kaua'i, Hawaii Island, and Maui County. Its work is obtained through competitive bidding and direct negotiation across multiple contract structures (fixed price, cost-plus, unit price, design-build), and it operates as both a prime contractor and a subcontractor to general building contractors.

The firm has developed differentiated technical capabilities including emergency infrastructure repair, HDPE pipe slip-lining rehabilitation, environmentally sensitive in-water stream construction, and hazardous material soil encapsulation (handling lead, mercury, arsenic, and chlordane). A core Design-Build partnership with Sam O. Hirota Inc. supports integrated project delivery for waterline and recycled water projects. The company maintains three offices (Sand Island Industrial Park on O'ahu, Puhi Industrial Park on Kaua'i, and Big Island coverage), holds Hawaii Contractor's License #ABC 6826, and is signatory to multiple union master agreements. No current revenue is publicly disclosed; the firm is ranked in the Top 25 among Hawaii's general contractors.

Name

Koga Engineering & Construction

Legal name

Koga Engineering & Construction, Inc.

Website

https://kogaengineering.com

Company type

Private

Founded year

1973

Operating status

Operating

Headcount range

51–100 employees

Short description

Koga Engineering & Construction is a Hawaii-based heavy civil contractor founded in 1973 that performs excavation, utilities, and roadwork for federal, state, and county agencies and private developers across the Hawaiian Islands.

Ownership category

akta.pro rank

Product category

Heavy Civil Construction Services

NAICS

Heavy and Civil Engineering Construction (237), Water and Sewer Line and Related Structures Construction (237110), Highway, Street, and Bridge Construction (237310), Utility System Construction (2371)

SIC

Heavy Construction Other Than Bldg Const - Contractors (1600), Water, Sewer, Pipeline, Comm & Power Line Construction (1623), Construction - Special Trade Contractors (1700)

akta.pro primary industry

Storage & Conveyance Structures (Reservoirs, Tanks, Culverts, Tunnels) (IMAFAGAE)

akta.pro secondary industry

Construction Management & Delivery (EPCM/CMAR/Design-Build Oversight) (EUANALAE)

Keywords

• Heavy civil construction
• Excavation services
• Utilities construction
• Roadwork construction
• Site preparation

Headquarters

HQ city

Honolulu

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Heavy Civil Construction Services: Revenue generated from construction projects involving excavation, utilities installation, roadwork, and site preparation. Work obtained through competitive bidding and negotiations with fixed price, cost-plus, unit price, and design-build contracts.
2. Subcontract Work: Site preparation work as a subcontractor for general building contractors, providing specialized excavation, utilities, and roadwork services.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels1 record

Core offering

Koga Engineering & Construction performs heavy civil construction projects in the Hawaiian Islands, specializing in excavation, utilities installation (waterlines, sewer, drainage), and roadwork. The firm operates as both a prime contractor and subcontractor, obtaining work through competitive bidding and contract negotiation (fixed price, cost-plus, unit price, and design-build) primarily with federal, state, and county government agencies as well as private developers and industry.

Product overview

Koga Engineering & Construction is a construction company that operates as a single unified service offering focused on municipal and utilities construction. The company's core services include excavation, utilities construction (waterlines, sewer, drainage), and roadwork. As both a general contractor and subcontractor, they provide site preparation services for general building contractors. Their project portfolio includes emergency repairs, design-build projects, soil remediation, infrastructure improvements, and heavy civil construction work across Hawaii's islands (O'ahu, Kaua'i, Hawai'i Island, Maui County). Work is obtained through competitive bidding and negotiating various contract types (fixed price, cost-plus, unit price, design-build). Clients include governmental agencies (Federal, State and County), private developers and private industry.

Differentiator

Problem solved

Functional benefit

Products and services

• Excavation Services

Quantifiable outcome

• Completed emergency scour repairs ensuring public safety with minimal impact to Kaumuali'i Highway users
• +2 more outcomes

Named customers11 records

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

15 partnerships are on record, tiered core, major and supporting.

• Sam O. Hirota Inc.coreStrategic or Co-development PartnerDesign-Build partnership for emergency infrastructure projects including Kamehame Tunnel Waterline and Ewa Villages R-1 Replacement projects for Board of Water Supply and City & County of Honolulu.
• Constructors Hawaii, Inc.majorStrategic or Co-development PartnerSubcontract partnership for Lanakila Public Housing Demolition project for Hawaii Public Housing Authority, handling hazardous material encapsulation work.
• WPS Inc.supportingImplementation/ SI/ Consulting PartnerEnvironmental consultant coordination for Waihee Stream Emergency Repairs project, ensuring adherence to National, State, and County permits.
• Belt CollinssupportingTechnology or IntegrationEngineering consultant for Waihee Stream Emergency Repairs project contributing technical expertise for stream bank restoration.
• AECOS Inc.supportingTechnology or IntegrationEnvironmental and technical consultant team member for Waihee Stream project providing environmental compliance expertise.
• Affiliated ConstructionsupportingChannel Partner/ Reseller/ DistributorSubcontractor partner for Waihee Stream Emergency Repairs project.
• Green Thumb LandscapingsupportingChannel Partner/ Reseller/ DistributorLandscaping subcontractor for environmental restoration aspects of Waihee Stream project.
• Shioi Construction, Inc.majorChannel Partner/ Reseller/ DistributorGeneral contractor partnership for Sheraton Kaua'i Luau Building project, with Koga providing sitework and utilities.
• F&H ConstructionmajorChannel Partner/ Reseller/ DistributorGeneral contractor for Clarence T.C. Ching Athletic Complex project where Koga performed sitework and concrete restoration.
• Aqua EngineeringmajorChannel Partner/ Reseller/ DistributorGeneral contractor for HMR Sewer Repairs project where Koga performed sewer pipe replacement work.
• Swinerton BuildersmajorChannel Partner/ Reseller/ DistributorGeneral contractor for Target Lihue project at Kukui Grove Center where Koga provided excavation and utilities work.
• T. Iida Contracting, Ltd.majorChannel Partner/ Reseller/ DistributorGeneral contractor for West Loch Modular Housing project with Koga performing sitework.
• Allied Builders SystemsmajorChannel Partner/ Reseller/ DistributorGeneral contractor for 806 Iwilei Affordable Housing project where Koga performed sitework, structural excavation, and underground utilities.
• Watts ConstructionmajorChannel Partner/ Reseller/ DistributorGeneral contractor for HNL CONRAC project where Koga maintained drilled spoils through subcontracted work.
• The Haskell CompanymajorChannel Partner/ Reseller/ DistributorPrime contractor for U.S. Coast Guard National Security Cutters Homeport project where Koga performed workspace construction and sanitary lift station installation.

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Hawaiian Dredging Construction Company: Hawaii's largest heavy civil and general contractor performing excavation, marine construction, and infrastructure work across the islands. Direct comparable in core services (excavation, utilities, roadwork) and primary customer base (government agencies in Hawaii).
• Goodfellow Bros. Long-established heavy civil contractor with deep operations across Hawaii and the Pacific, performing excavation, utilities, roadwork, and site preparation. Closely comparable business model, customer mix, and geographic footprint to Koga.
• Jas. W. Glover, Ltd. Hawaii-based heavy civil contractor specializing in roads, highways, utilities, drainage, and site preparation for government and private clients. Direct peer across Koga's core service lines and primary public-sector customer base.
• Isemoto Contracting Co., Ltd. Multi-generation Hawaii-based general contractor performing site work, utilities, excavation, and infrastructure construction on the Big Island and across the islands. Highly comparable in service mix, government orientation, and regional focus.
• D.W. Davis, Inc. Hawaii-based heavy civil contractor with a long history of site preparation, utilities, and roadwork for public and private clients. Closely comparable scale and service portfolio to Koga within the Hawaii market.
• Watts Constructors: Hawaii-based general contractor performing heavy civil, infrastructure, and federal/military construction across the islands. Listed among Koga's general contractor partners and a direct comparable for government and design-build project delivery.

Broad incumbents

• Kiewit Corporation: One of North America's largest heavy civil and infrastructure contractors, with active infrastructure and federal project work in Hawaii. Represents a much larger incumbent competing for the same government infrastructure and design-build awards Koga pursues.
• Granite Construction: National heavy civil contractor with significant water resources, transportation, and utilities infrastructure work, including operations in Hawaii. A broad incumbent that competes with Koga on larger roadwork, drainage, and water infrastructure bids.
• AECOM: Global infrastructure consulting and construction firm with design-build and program management capabilities in water, transportation, and environmental projects in Hawaii. Competes for the design-build and municipal contracts central to Koga's business.

Regional players

• Albert C. Kobayashi, Inc. Hawaii-based general contractor with a long history of site work, excavation, and infrastructure construction for public and private clients. Regional peer with overlapping service mix, particularly on O'ahu.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Funding overview

Funding rounds3 records

Investors

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 Koga Engineering & Construction