Aqua Engineers

What Aqua Engineers does

Aqua Engineers, Inc. is a Hawaii-based, 100% employee-owned (ESOP since 2006) water and wastewater services contractor founded in 1981 and headquartered in Kalaheo, Kauai. The company operates, maintains, designs, and constructs water and wastewater treatment and collection infrastructure for U.S. Army installations, county governments, and private-sector clients across Kauai, Oahu, Maui, Hawaii Island, and Lanai. Its largest commercial relationships are two 50-year military privatization contracts covering the Schofield Barracks wastewater treatment plant and the Oahu Army collection system (a ~$229M, 50-year award); it also runs subsidiary Puhi Sewer & Water Company, a PUC-regulated wastewater utility serving parts of Puhi and Lihue.

The company's technical platform centers on advanced wastewater treatment and resource recovery: Membrane Bio-Reactors (MBR), Moving Bed Biofilm Reactor (MBBR) processes, R-1 quality water reuse and recycling, nitrogen and phosphate reduction, photovoltaic integration, and upgraded digester infrastructure. It also delivers collection-system maintenance (septic/cesspool pumping, sewer line cleaning, lift station service, hydro-excavation utility location, bypass pumping) and engineering/construction services through wholly owned subsidiary Briant Construction, Inc.

Aqua Engineers earns revenue primarily through long-duration managed-service contracts with government and military counterparties, supplemented by PUC-tariffed regulated utility sales at the subsidiary level, professional services for engineering and construction management, and collection-system maintenance fees. The company grows both organically - by adding scope or expansion projects inside existing installations - and via acquisitions of private utilities (e.g., the September 2025 signed agreement to acquire Laie Water Company). Go-to-market is enterprise field sales into government procurement channels, not consumer marketing.

Name

Aqua Engineers

Legal name

Aqua Engineers, Inc.

Website

https://aquaengineers.com

Company type

Private

Founded year

1981

Operating status

Operating

Headcount range

51–100 employees

Short description

Aqua Engineers is a 100% employee-owned Hawaii water and wastewater services contractor operating, maintaining, and designing treatment and collection infrastructure for the U.S. Army, county governments, and private clients across five Hawaiian islands under long-duration military privatization and PUC-regulated contracts.

Ownership category

akta.pro rank

Product category

Water and Wastewater Treatment Services

NAICS

Water Supply and Irrigation Systems (22131), Water Supply and Irrigation Systems (221310), Sewage Treatment Facilities (22132), Water, Sewage and Other Systems (2213)

SIC

Water Supply (4941), Sanitary Services (4950), Water, Sewer, Pipeline, Comm & Power Line Construction (1623)

akta.pro primary industry

Water & Wastewater Treatment Plant Equipment (Clarifiers, Aeration, Membrane Systems) (IMAHAEAJ)

Keywords

• Water and wastewater services
• Military utility privatization
• Wastewater treatment operations
• Water reuse systems
• Utility engineering construction

Headquarters

HQ city

Kalaheo

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Technology or R&D, Supply Chain, Marketing or Sales

Revenue model

1. Wastewater Treatment Operations: Operation and maintenance of wastewater treatment facilities for government and private clients, providing recurring revenue through long-term service contracts.
2. Military Privatization Contracts: 50-year privatization contracts with U.S. Army for wastewater systems, including Schofield Barracks and Oahu Army collection systems. Revenue from ownership, operation, upgrades, and maintenance of military wastewater infrastructure.
3. Public Utility Services: Regulation by Public Utilities Commission (PUC). Subsidiary Puhi Sewer & Water Company provides wastewater treatment services to areas of Puhi and Lihue on Kauai, with tariffs and rate schedules approved by PUC.
4. Engineering and Construction Services: Design, engineering, and construction management services for water and wastewater facilities, including subsidiary Briant Construction, Inc. for mechanical contracting.
5. Collection System Maintenance Services: Cesspool and septic tank pumping, sewer line cleaning, lift station maintenance, emergency services, bypass pumping, utility location with hydro-excavating, and pretreatment permit monitoring.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

Aqua Engineers operates, maintains, and manages water and wastewater treatment facilities for government, military, and private clients across Hawaii. The company provides certified-operator treatment system management, engineering design and construction management, collection system maintenance (septic/cesspool pumping, sewer line cleaning, hydro-excavation), and specialized U.S. Army wastewater infrastructure services under 50-year privatization contracts. Revenue is anchored in long-term managed-service contracts, PUC-regulated utility tariffs, and engineering/construction services for treatment plant upgrades.

Product overview

Aqua Engineers is a water and wastewater management services company offering a unified portfolio of operational services rather than a software platform. The core offerings include: Operation & Maintenance Services for water and wastewater treatment systems; Engineering & Construction Services for facility design and construction management; Collection Systems, Septic Tanks, Cesspools Services for collection system maintenance; Army Project Services for U.S. Army wastewater infrastructure; and Puhi Sewer & Water Company, a regulated subsidiary providing wastewater services to specific Kauai communities.

Differentiator

Problem solved

Functional benefit

Products and services

• Operation & Maintenance Services Certified-operator management of water and wastewater treatment systems for government, military, municipal, and private clients using best management practices, integrating Membrane Bio-Reactors (MBR), Moving Bed Biofilm Reactor (MBBR), and photovoltaic systems for sustainable operations. Serves clients such as the U.S. Army, County of Kauai, and private resorts across Hawaii.
• Engineering & Construction Services Design, engineering, and construction management services for water and wastewater facilities, including administration of design documents, construction management protocols, and technical design practices, delivered through Aqua Engineers and its wholly-owned subsidiary Briant Construction, Inc. for government, military, and municipal clients.
• Collection Systems, Septic Tanks, Cesspools Services Full-service collection system maintenance for municipal, military, and private clients, including septic and cesspool pumping, sewer line cleaning, lift station maintenance, bypass pumping during construction, utility location via hydro-excavating, and camera inspection of sewer and storm drains. Includes 24/7 emergency services.
• Army Project Services Standardized review process for design, construction, and maintenance of U.S. Army wastewater infrastructure on Oahu installations under two 50-year privatization contracts covering Schofield Barracks, Fort Shafter, Aliamanu Military Reservation, Tripler Army Medical Center, Hickam Air Force Base, Fort DeRussy, and Pilila'au Army Recreation Center. Services include plan review, permit issuance, and project coordination.
• Puhi Sewer & Water Company (PUC-Regulated Utility) Public Utilities Commission (PUC)-regulated subsidiary of Aqua Engineers providing wastewater treatment and non-potable water services to areas of Puhi and Lihue on Kauai under approved PUC tariffs. Aqua Engineers' first PUC-regulated utility acquisition.

Quantifiable outcome

• 100,000 gallons/day recycled through R-1 In Plant Water Reuse System
• +4 more outcomes

Named customers8 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Eleven partnerships are on record, tiered core, major and minor.

• Briant Construction, Inc.coreImplementation/ SI/ Consulting PartnerConstruction subsidiary of Aqua Engineers responsible for mechanical contracting and construction services. Managed the Waimea Wastewater Treatment Plant expansion and other county projects. Head of construction team for major projects including Lihu'e Wastewater Treatment Plant upgrade.
• Goodfellow Bros., Inc.majorImplementation/ SI/ Consulting PartnerPartner and contractor for Army projects including the Lyman Road Sewer Upgrade Project at Schofield Barracks. Construction partner for wastewater infrastructure upgrades.
• HDR/Hawaii Pacific EngineersmajorTechnology or IntegrationDesign engineer for Waimea Wastewater Treatment Plant expansion project. Provided technical engineering services for the plant upgrade.
• Kikiaola Construction Co.minorImplementation/ SI/ Consulting PartnerSubcontractor for Waimea WWTP expansion project. Part of construction team led by Briant Construction.
• Laie Water CompanycoreStrategic or Co-development PartnerPurchase Agreement signed September 2025 for sale of LWC's potable water system to Aqua Engineers. Currently serves 700+ customers in Laie community. Acquisition pending PUC approval.
• Puhi Sewer & Water CompanycoreStrategic or Co-development PartnerSubsidiary of Aqua Engineers, governed by Public Utilities Commission (PUC). Provides wastewater treatment services to certain areas of Puhi and Lihue on Kauai. First PUC-regulated utility acquired by Aqua.
• Hawaii Reserves, Inc. (HRI)majorStrategic or Co-development PartnerParent company of Laie Water Company. Partner in pending sale of potable water system serving Laie community. R. Eric Beaver is President & CEO of HRI and LWC.
• U.S. Army Directorate of Public WorkscoreStrategic or Co-development Partner50-year privatization contracts for Army wastewater systems. Services include design, construction, operation, maintenance, upgrades and management of military wastewater infrastructure across Oahu installations.
• U.S. Department of the ArmycoreStrategic or Co-development PartnerAwarded 50-year privatization contract in September 2008 for wastewater system, including design and construction of Aliamanu Military Reservation No. 1 Sewer Pump Station. Second major military privatization contract.
• County of Kauai Department of Public WorksmajorStrategic or Co-development PartnerRecipient of PISCES award for Waimea Wastewater Treatment Plant expansion Phase 1. Partner on multiple municipal wastewater projects including Lihu'e Wastewater Treatment Plant upgrade.
• Harvey BrothersminorImplementation/ SI/ Consulting PartnerSubcontractor for Waimea WWTP expansion project. Construction team member for infrastructure work.

Scale indicators12 records

Recent moves9 records

Expansion highlights5 records

Direct peers

• American Water Works Company: Largest publicly traded U.S. water and wastewater utility, operating regulated water and wastewater systems across multiple states. Comparable to Aqua Engineers in operating regulated water/wastewater systems under long-term utility frameworks, though at much larger national scale.
• Essential Utilities (formerly Aqua America): Regulated water and natural gas utility serving customers across multiple U.S. states. Comparable in its regulated water/wastewater utility operations and acquisition-driven growth strategy (Aqua America's M&A roll-up is a direct parallel to Aqua's Hawaii utility roll-up).
• California Water Service Group: Investor-owned water utility serving regulated water service in California, Washington, New Mexico, and Hawaii. Comparable as a PUC-regulated water utility operator with geographic concentration and regulated rate base economics.
• American States Water Company: Holding company for regulated water and wastewater utilities plus contracted services for military bases and private clients. Directly comparable to Aqua Engineers due to its military base services business model alongside regulated utility operations.
• Middlesex Water Company: Investor-owned regulated water and wastewater utility in New Jersey and Delaware. Comparable as a smaller-scale regulated water/wastewater operator with similar utility services focus, though serving different U.S. regions.

Broad incumbents

• Veolia Environnement: Global environmental services company with extensive water and wastewater O&M and EPC operations worldwide. Comparable to Aqua's full-service O&M, engineering, and construction capabilities, but operates at vastly larger scale and across broader geographies.
• Severn Trent: U.K.-listed water and wastewater services group operating regulated water utilities and providing operational services globally. Comparable business model combining regulated utility assets with operational services for municipal and industrial clients.
• Suez Water Technologies & Solutions: Global water technology and services arm (formerly GE Water) providing water treatment systems, chemicals, and O&M services. Comparable to Aqua on water/wastewater treatment technology stack (MBR, MBBR) and service delivery model.

Emerging players

• Corix Infrastructure: Provider of water, wastewater, and energy infrastructure services for small-to-mid-sized communities and developer-built systems. Comparable to Aqua in serving smaller community water/wastewater systems and operating in regulated utility frameworks.

Regional players

• Honolulu Board of Water Supply: Municipal water utility serving the island of Oahu. Comparable as the major Hawaii-based water utility that shares the same operating environment, regulatory framework (PUC), and customer base as Aqua Engineers.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 records

Subsidiaries3 records

Funding overview

Funding rounds

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 Aqua Engineers