What Underwood Engineers does

Underwood Engineers is a privately held civil and environmental engineering firm (Underwood Engineers, LLC) founded in 1982 and headquartered in Portsmouth, New Hampshire, with a second office in Concord. The firm operates across six integrated service lines: Water, Wastewater, Stormwater, Civil Engineering, Construction Services, and Asset & Data Management, providing planning, design, construction administration, and asset management services to state and municipal governments throughout northern New England, primarily in New Hampshire and Maine.

The firm employs standard civil and environmental engineering methodologies, including hydraulic modeling, ArcGIS-based asset management, water treatment technologies such as GAC filtration, Greensand Plus, and advanced oxidation, and full construction-phase observation and documentation. Notable technical work includes the $16M Pudding Hill Water Treatment Plant in Dover, NH (a 10,000 SF groundwater treatment facility addressing PFAS, 1,4-dioxane, MtBE, iron, and manganese), regional water supply collaboration between Jaffrey and Peterborough, NH, and a 34 MGD activated sludge wastewater treatment plant repair for the City of Manchester.

Revenue is generated on a project-based professional services model, with fees quoted per engagement and managed across scope, schedule, and budget. The go-to-market motion is sales-led, relying on direct engagement with municipal public works departments, water districts, and city/town administrations, supplemented by referral-driven repeat business within the northern New England municipal ecosystem. The firm is a privately held LLC with no disclosed outside investors, no parent company, and no acquisition activity in the source material.

Name

Underwood Engineers

Legal name

Underwood Engineers, LLC

Website

https://underwoodengineers.com

Company type

Private

Founded year

1982

Operating status

Operating

Headcount range

11–50 employees

Short description

Underwood Engineers is a privately held civil and environmental engineering firm serving state and municipal governments in northern New England through six service lines: water, wastewater, stormwater, civil engineering, construction, and asset and data management.

Ownership category

akta.pro rank

Product category

Civil and Environmental Engineering Services

NAICS

Engineering Services (541330), Architectural, Engineering, and Related Services (5413), Water and Sewer Line and Related Structures Construction (237110), Heavy and Civil Engineering Construction (237)

SIC

Services-Engineering Services (8711), Services-Engineering, Accounting, Research, Management (8700), Water, Sewer, Pipeline, Comm & Power Line Construction (1623)

akta.pro primary industry

Civil & Structural Engineering Consulting (BPAHAIAA)

akta.pro secondary industries

Water Treatment Plant Construction (Drinking Water) (IMAFAGAA), Construction Management & Delivery (EPCM/CMAR/Design-Build Oversight) (EUANALAE), Environmental Data Management Platforms (EHS/EMS, LIMS, ELN, Compliance Data Hubs) (EUAHAKAA), Public Works Departments (Streets, Bridges, Stormwater, Fleet, Maintenance) (BPAIALAD)

Keywords

• Civil engineering services
• Environmental engineering consulting
• Municipal infrastructure engineering
• Water treatment engineering
• Wastewater treatment design

Headquarters

HQ city

Portsmouth

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Others

Revenue model

1. Engineering Services: Fee-for-service engineering consulting providing planning, design, construction administration, and project management services for civil and environmental infrastructure projects. Revenue is generated through project-based engagements with municipal clients, typically billed on a per-project basis with scope, schedule, and budget management.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

Underwood Engineers is a full-service civil and environmental engineering firm delivering planning, design, construction administration, and project management services for public infrastructure projects. The firm serves state and municipal governments across northern New England with six integrated practice areas: Water, Wastewater, Stormwater, Civil Engineering, Construction Services, and Asset & Data Management.

Product overview

Underwood Engineers is a full-service civil and environmental engineering firm offering integrated services across six core practice areas: Water, Wastewater, Stormwater, Civil Engineering, Construction Services, and Asset & Data Management. The firm works primarily with state and municipal governments throughout northern New England. Their Water Services encompass planning, source development, treatment, distribution, and storage; their Wastewater Services include treatment facilities, residuals management, collection systems, and pumping; Stormwater Services cover conveyance, water quality, and watershed-scale design; Civil Engineering includes utilities, roadways, municipal services, and site design; Construction Services provide field observation, quality assurance, and documentation; and Asset & Data Management offers GIS, asset management programs, rate studies, and life cycle costing. Projects include innovative PFAS treatment facilities, combined sewer separation, pump station upgrades, and comprehensive infrastructure modernization programs.

Differentiator

Problem solved

Functional benefit

Products and services

• Water Services Comprehensive water system engineering for state and municipal clients including planning, source development, treatment design, distribution systems, storage solutions, water system facility plans, master plans, capital improvement programs, PFAS treatment, and regulatory compliance support.
• Wastewater Services Wastewater treatment facility design and management solutions for municipal clients including residuals and biosolids management, collection system services, sewer modeling, I/I analysis, and pumping station design with energy-efficient force mains.
• Stormwater Services Stormwater management, planning, and design for conveyance and treatment systems including Green Infrastructure, municipal LID applications, watershed-scale BMP implementation, MS4 compliance, and water quality protection for municipal clients.
• Civil Engineering Services Civil engineering for road, utility, and site projects in rural and urban settings including municipal utility systems design, roadway planning and rehabilitation, municipal infrastructure support, and site engineering from concept through construction.
• Construction Services Construction phase support for municipal projects including facilities oversight, roads and utilities observation, quality assurance and contract administration, and comprehensive construction documentation including record drawings and daily field reports.
• Asset & Data Management Services Data management solutions for municipal clients including GIS mapping and analysis, asset management programs, utility rate studies, and life cycle cost analyses using ArcGIS and other tools to support infrastructure planning, maintenance, and financial planning.

Quantifiable outcome

• Hundreds of projects completed throughout northern New England
• +1 more outcomes

Named customers16 records

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Scale indicators3 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Tighe & Bond: Westfield, MA-based full-service civil and environmental engineering firm serving municipalities across New England with water, wastewater, and stormwater services. Closely comparable in size, service mix, and public-sector client base to Underwood Engineers.
• Wright-Pierce: Topsham, ME-based civil and environmental engineering firm with deep water and wastewater utility expertise across northern New England. Direct competitor for the same NH/ME municipal clients and PFAS treatment projects.
• Hoyle, Tanner & Associates: Bedford, NH-headquartered engineering firm offering transportation, civil, environmental, and structural services across northern New England. Comparable regional firm competing for many of the same municipal roadway, water, and wastewater engagements.
• Brown and Caldwell: Specialist environmental engineering firm focused on water, wastewater, and stormwater services for municipal utilities. Comparable specialty positioning and competing for PFAS, nutrient removal, and treatment plant work.

Broad incumbents

• VHB (Vanasse Hangen Brustlin): Watertown, MA-based engineering, planning, and design firm with significant New England municipal practice spanning water, transportation, and environmental services. Larger and broader than Underwood but competes head-to-head on municipal infrastructure work.
• Stantec: Global engineering, architecture, and environmental firm with a sizable New England water and municipal infrastructure practice. Competes with Underwood on larger water treatment, sewer, and stormwater programs.
• CDM Smith: Global engineering and construction firm with deep water, environment, and transportation practices serving municipal clients nationwide, including New England. Competes for larger water/wastewater treatment and CSO programs.
• AECOM: Global infrastructure consulting firm with a sizable New England water and environmental practice. Overlaps with Underwood on large municipal water, wastewater, and stormwater programs.
• Jacobs Solutions: Global professional services firm with major water and environmental engineering capabilities serving municipalities in the Northeast. Competes for larger-scale programs that exceed Underwood's bench size.
• Kleinfelder: Engineering, environmental, and construction services firm with New England municipal water/wastewater and site/civil practice. Larger and more diversified than Underwood but operates in the same client ecosystem.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/161543243869457
• LinkedInlinkedin.com/company/underwood-engineers-inc

Revenue estimate

Valuation estimate

Number of profiles

Profiles17 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 Underwood Engineers