Dufresne Group

What Dufresne Group does

Dufresne Group (legally Dufresne & Associates, PC) is a Vermont-based civil engineering consulting firm founded in 1999 that provides planning, design, permitting, and construction-phase engineering services for municipal water, wastewater, stormwater, and transportation infrastructure. The firm serves primarily municipal and governmental clients across Vermont and New Hampshire, with secondary exposure to private-sector developers. Its service portfolio spans water treatment and distribution, wastewater collection and treatment, stormwater and erosion control, transportation engineering, asset management planning, civil/site design, topographic surveying, and construction-phase engineering, supported by computer modeling capabilities using industry-standard tools such as WaterGEMS, InfoSWMM, AutoCAD, and GIS-based mapping. Differentiated technical capabilities include the first use of ultrafiltration membranes for drinking water treatment in Vermont (St. Johnsbury), membrane bioreactor expertise for wastewater, and over 20 completed water distribution system models across New England.

The firm is 100% women-owned (certified status since 2018) and operates through three Vermont offices (Springfield headquarters, Barre, and St. Johnsbury), with the Manchester office closed in December 2024 following a shift to remote work. Revenue is generated through project-based professional services fees, typically awarded via qualification-based selection or competitive RFP processes, and project funding flows largely from state revolving funds (SRF), USDA Rural Development grants, and federal infrastructure allocations (including ARPA). GTM is relationship-driven and referral-led within a tightly defined regional footprint; there is no software product, no subscription revenue, and no disclosed pricing structure. The firm is privately held with no outside investors, parent company, or capital raises indicated, and in March 2025 underwent an ownership and leadership transition in which founding-era President Naomi Johnson moved to a part-time Director role while Vice Presidents Andrea Day and Christina Haskins became Co-Presidents.

Name

Dufresne Group

Legal name

Dufresne & Associates, PC

Website

https://dufresnegroup.com

Company type

Private

Founded year

1999

Operating status

Operating

Headcount range

51–100 employees

Short description

Dufresne Group is a Vermont-based, women-owned civil engineering consulting firm serving municipal and government clients in Vermont and New Hampshire with water, wastewater, stormwater, and transportation infrastructure design and construction services.

Ownership category

akta.pro rank

Product category

Civil Engineering Consulting Services

NAICS

Architectural, Engineering, and Related Services (5413), Environmental Consulting Services (54162)

SIC

Services-Management Consulting Services (8742)

akta.pro primary industry

Water, Wastewater & Hydraulics Engineering Consulting (BPAHAIAD)

Keywords

• Civil engineering consulting
• Water treatment design
• Wastewater engineering services
• Stormwater management consulting
• Municipal infrastructure engineering

Headquarters

HQ city

Springfield

HQ country

United States

HQ region

North America

Offices4 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering Consulting Services: Professional engineering consulting services billed on a project basis for municipal water, wastewater, stormwater, and transportation infrastructure projects. Revenue generated through project fees for planning, design, permitting, and construction phase services. Projects are funded by various government revolving loan funds, grants, and municipal budgets.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels3 records

Core offering

Dufresne Group is a Vermont-based engineering consulting firm providing professional engineering services for municipal water, wastewater, stormwater, transportation, and civil/site infrastructure projects. Services span planning, design, permitting, funding assistance, construction-phase engineering, and asset management for cities, towns, and villages across Vermont and New Hampshire. The firm delivers these services through qualification-based selection and municipal RFPs, leveraging industry-standard modeling software including WaterGEMS, InfoSWMM, AutoCAD, and GIS integration.

Product overview

Dufresne Group is a women-owned engineering consulting firm offering a comprehensive suite of professional engineering services rather than a unified software product. The firm provides integrated water treatment and distribution system design, wastewater treatment and collection system design, stormwater and erosion control, transportation engineering, computer applications including water system modeling using WaterGEMS and GIS integration, asset management planning, civil and site engineering, construction phase services, and planning/evaluations. These services work together as a full-service engineering offering for municipal infrastructure projects throughout Vermont and New Hampshire, with specialized expertise in water and wastewater systems, transportation, and environmental engineering.

Differentiator

Problem solved

Functional benefit

Products and services

• Water Treatment Services

Quantifiable outcome

• First ultrafiltration membrane system for drinking water treatment in Vermont
• +2 more outcomes

Named customers8 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

Two partnerships are on record, tiered minor.

• Stone EnvironmentalminorStrategic or Co-development PartnerDufresne Group teamed with Stone Environmental through a grant secured by the Caledonia County Natural Resources Conservation District to incorporate green stormwater infrastructure into the Oak Street infrastructure improvements project in St. Johnsbury.
• Caledonia County Natural Resources Conservation District (CCNRCD)minorStrategic or Co-development PartnerCCNRCD secured grant funding that enabled collaboration with Dufresne Group for incorporating green stormwater infrastructure (infiltration swales) into municipal infrastructure projects.

Scale indicators5 records

Recent moves8 records

Expansion highlights5 records

Broad incumbents

• Stantec: Global engineering consultancy with substantial municipal water and environmental practices in the Northeast. Larger incumbent that competes for major VT/NH municipal programs that DG cannot pursue alone.
• AECOM: Global infrastructure consulting firm with deep water and environmental practices, including significant New England presence. Competes for large-scale municipal programs that could otherwise flow to DG.
• CDM Smith: Major national engineering firm with a long-standing water and environmental practice serving municipalities. Competes with DG on larger municipal programs where DG acts as subconsultant or is excluded by capacity.
• Greenman-Pedersen, Inc. (GPI): Multi-discipline engineering firm with civil, water, and transportation practices active across the Northeast. Competes in the broader municipal engineering services market where DG operates.

Direct peers

• Tighe & Bond: Northeast civil/environmental engineering firm with strong municipal water, wastewater, and stormwater practice. Competes head-to-head with DG for New England municipal clients and similar project types.
• Wright-Pierce: New England-based engineering firm specializing in water, wastewater, and stormwater infrastructure for municipal clients. Direct competitor for the same municipal engineering engagements DG targets across VT/NH.
• Hoyle, Tanner & Associates: New Hampshire-headquartered engineering firm with civil, water, wastewater, and transportation services to municipalities. Geographic and service-line overlap with Dufresne Group in the VT/NH market.
• Weston & Sampson: Regional engineering firm with deep water/wastewater/stormwater municipal practice across the Northeast. Highly comparable service portfolio and client base to Dufresne Group.
• Tata & Howard: New England water and wastewater engineering consulting firm specializing exclusively in municipal water infrastructure. Direct competitor for similar municipal client engagements.
• Dubois & King: Vermont-based engineering firm offering municipal water, wastewater, transportation, and civil/site engineering — direct regional peer competing for the same Vermont municipal RFPs as DG.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles16 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 Dufresne Group