Three Notch Group

What Three Notch Group does

Three Notch Group is a regional engineering and environmental consulting firm headquartered in Andalusia, Alabama, founded in 1946 (originally as CDG Engineers & Associates, Inc.) and rebranded to its current name in April 2025. The firm delivers a twelve-service portfolio spanning civil/site development, construction engineering and inspection, emergency response management, environmental consulting, surveying and geomatics (LIDAR, UAS, GIS), geotechnical engineering, natural gas systems, solid waste management, transportation, underground storage tank (UST) services, wastewater, and water infrastructure. Service delivery is anchored by in-house AASHTO- and U.S. Army Corps of Engineers-accredited materials testing laboratories at four locations, in-house drilling rigs, mobile enhanced multi-phase extraction systems for petroleum remediation, and prequalified vendor status with the Alabama, Florida, and Tennessee Departments of Transportation.

The firm serves three primary customer segments: public entities (municipalities, water and sewer authorities, county commissions, state DOTs, and other government agencies), private enterprise (developers, manufacturers, agricultural operators, and utilities), and the petroleum industry (fuel distributors, convenience store owners, oil jobbers, and transporters). Disclosed engagements range from individual UST remediation jobs to multi-million-dollar infrastructure projects such as a $55M grain and distribution facility for Koch Foods, an 80 MW solar project for Origis Energy and PowerSouth, and wastewater and water system upgrades for multiple Alabama municipalities.

Three Notch Group operates from eleven offices across Alabama, North Carolina, Tennessee, and Florida with more than 220 employees, generating project-based professional services revenue through direct consulting engagement. The firm bills on a quote-based project model with no publicly disclosed rate cards, executes work through multidisciplinary in-house teams, and emphasizes its regulatory relationships, emergency response capability (more than three decades of experience), and integrated lifecycle delivery from surveying through construction administration. Recent leadership transition (Matt Hames named President and CEO effective July 1, 2026) and industry recognition (2026 ENR Top 500 at #385, 2025 PSMJ Circle of Excellence) indicate an ongoing scaling posture within the Southeast U.S. AEC market.

Name

Three Notch Group

Legal name

Three Notch Group

Website

https://3notch.com

Company type

Private

Founded year

1946

Operating status

Operating

Headcount range

101–250 employees

Short description

Three Notch Group is a regional engineering and environmental consulting firm founded in 1946, operating eleven offices across Alabama, North Carolina, Tennessee, and Florida with 220+ employees. It delivers civil, geotechnical, environmental, transportation, water, wastewater, and UST services to municipalities, private developers, and petroleum industry clients via project-based engagements.

Ownership category

akta.pro rank

Product category

Civil and Environmental Engineering Consulting

NAICS

Engineering Services (541330), Environmental Consulting Services (54162)

SIC

Services-Management Consulting Services (8742), Heavy Construction Other Than Bldg Const - Contractors (1600)

akta.pro primary industry

Civil & Structural Engineering Consulting (BPAHAIAA)

akta.pro secondary industry

Geotechnical & Subsurface Engineering Consulting (BPAHAIAB)

Keywords

• Civil engineering consulting
• Environmental consulting services
• Geotechnical engineering
• Infrastructure design services
• Surveying and geomatics

Headquarters

HQ city

Andalusia

HQ country

United States

HQ region

North America

Offices11 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering and Environmental Consulting Services: Professional consulting services delivered on a project basis for civil/site development, geotechnical engineering, environmental consulting, surveying, transportation, water/wastewater infrastructure, natural gas systems, solid waste management, UST services, and construction engineering inspection. Revenue is generated through project fees for planning, design, permitting, construction administration, and remediation services across government and private sector clients.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Three Notch Group is a regional consulting firm delivering civil engineering, environmental, geotechnical, transportation, water, wastewater, natural gas, solid waste, and surveying services to public entities, private enterprises, and the petroleum industry. The firm provides planning, design, permitting, construction administration, materials testing, and remediation services delivered through integrated multidisciplinary teams across 11 offices in four Southeastern states.

Product overview

Three Notch Group is a regional environmental and infrastructure consulting firm offering a comprehensive suite of professional engineering and consulting services. The firm operates as a unified service portfolio rather than a software platform, providing Civil/Site Development, Construction Engineering and Inspection, Emergency Response Management, Environmental Consulting, Surveying (Geomatics), Geotechnical, Natural Gas, Solid Waste, Transportation, UST Services, Wastewater, and Water services. These services are delivered through integrated multidisciplinary teams across 11 offices in four states, serving public entities, private enterprises, and the petroleum industry.

Differentiator

Problem solved

Functional benefit

Products and services

• Civil/Site Development Comprehensive site development and consulting services including masterplanning, conceptual planning, civil site design, site surveying, due diligence studies, flood mitigation, stormwater management, and construction contract procurement/administration for public and private clients across the Southeast.
• Construction Engineering and Inspection Construction-phase services including contract administration, special inspections, materials testing, constructability review, and AASHTO-accredited laboratory testing for soil, aggregate, and foundation conditions across transportation, site development, and infrastructure projects.
• Emergency Response Management Nationwide 24-hour emergency response management and support services for petroleum spills from fuel transport accidents and UST/AST leaks, including assessment, containment, and cost-effective remediation with multi-phase extraction systems.
• Environmental Consulting Third-party environmental compliance audits, subsurface soil and groundwater quality assessment, wetland delineation, regulatory inspections, spill prevention compliance, tank inspections, air permitting, and environmental site assessments for public and private clients.
• Surveying (Geomatics) Land surveying, geographic information systems (GIS), photogrammetry, and unmanned aircraft systems (UAS) operations for mapping and site analysis, including topographic, ALTA/NSPS, construction, and right-of-way surveys.
• Geotechnical Geotechnical services including foundation design, ground improvement, earth retention structures, AASHTO and US Army Corps of Engineers accredited laboratory testing, and in-house drilling equipment for site characterization and foundation engineering.
• Natural Gas Natural gas infrastructure consulting including master planning, network modeling, pipeline design, transmission and distribution mains, meter and regulator station design, and compliance with federal pipeline safety regulations for gas utilities.
• Solid Waste Solid waste management facility planning, permitting, and operational consulting including coal combustion residuals consulting, landfill gas system planning, closure plans, and alternative waste technologies for municipal and private solid waste operators.
• Transportation Transportation infrastructure services including roadway safety analysis, highway facilities, widening projects, bridge replacements, intersection improvements, traffic signalization, and ALDOT/FDOT/TDOT prequalified services for state and municipal transportation projects.
• UST Services Underground Storage Tank compliance and remediation services including emergency spill management, trust fund cleanup, compliance testing, tank closure, remedial technologies, environmental sampling, drilling services, and SPCC planning for petroleum industry clients.
• Wastewater Wastewater infrastructure and treatment solutions including treatment facility design, collection systems, industrial pretreatment, funding procurement, lift stations, capacity studies, and CMOM planning for municipal wastewater systems.
• Water Drinking water infrastructure services including system master planning, hydraulic modeling, treatment facilities, distribution and transmission systems, deep well and surface water supply, storage tanks, and reservoir evaluation for municipal water systems.

Quantifiable outcome

• ENR Top 500 ranking at #385, advancing 11 spots year-over-year
• +3 more outcomes

Named customers18 records

Segments3 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

Two partnerships are on record, tiered notable.

• Tennessee Valley AuthoritynotableStrategic or Co-development PartnerPartnership for renewable energy purchase agreement under which TVA and North Alabama Electric Cooperative purchase renewable energy generated from the Scottsboro Landfill gas to energy program. The project collects methane gas from the landfill and conveys it to a 500-kW generator to produce electricity.
• North Alabama Electric CooperativenotableStrategic or Co-development PartnerCooperative agreement with TVA to purchase renewable energy generated from the Scottsboro Landfill gas to energy program, supporting environmental and economic benefits by reducing greenhouse gas emissions.

Scale indicators6 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• Kimley-Horn: Large privately held U.S. engineering consulting firm offering civil/site, transportation, water, environmental, and surveying services to public and private clients. Closely comparable business model — multi-discipline, relationship-based, employee-owned — and a frequent competitor on Southeast municipal and DOT projects.
• Tetra Tech: Global consulting and engineering firm with deep environmental, water, and infrastructure practices that directly overlap Three Notch Group's environmental consulting, water/wastewater, and geotechnical service lines. Comparable in serving municipal water authorities and federal/state clients on environmental remediation and infrastructure design.
• Haley & Aldrich: Employee-owned geotechnical and environmental engineering consulting firm with comparable subsurface, foundation, and remediation capabilities. Closely aligned in serving developers, municipalities, and industrial clients on civil/site, geotechnical, and environmental challenges.
• Barge Design Solutions: Privately held Southeast-based engineering and architecture firm headquartered in Nashville with offices across Tennessee, Georgia, and Alabama. Direct regional competitor on water, transportation, environmental, and civil/site municipal work in Three Notch Group's core geography.
• Terracon Consultants: National employee-owned engineering consulting firm specializing in geotechnical, environmental, construction materials testing, and facilities services. Comparable in AASHTO-accredited materials testing, geotechnical drilling, and multi-state regional delivery model.
• TRC Companies: Engineering, environmental, and infrastructure consulting firm with strong practices in water, transportation, environmental remediation, and energy. Directly comparable service portfolio and similar mid-market positioning competing on Southeast municipal and petroleum/UST projects.
• Ardurra Group: PE-backed multi-discipline engineering consulting firm focused on water, utilities, transportation, and environmental services across the Sun Belt. Closely comparable regional/Sun Belt focus and similar scale (sub-ENR Top 100), positioning it as a direct M&A or competitive peer.

Broad incumbents

• Stantec: Global publicly traded engineering, architecture, and environmental consulting firm. Overlaps with Three Notch Group across water, wastewater, transportation, environmental, and community development practices; much broader portfolio and geographic reach make it a competitor on larger municipal scopes.
• WSP USA: One of the world's largest engineering consulting firms with extensive U.S. municipal water, transportation, and environmental practices. Competes for Southeast DOT and municipal projects and possesses deeper bench strength on larger mega-programs.
• GHD: Global employee-owned engineering, architecture, and environmental consulting firm with growing U.S. footprint in water, environmental, and infrastructure markets. Comparable multi-discipline service model; broader geographic presence makes it a competitor on larger Southeast infrastructure programs.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/threenotchgroup
• Facebookfacebook.com/ThreeNotchGroup
• LinkedInlinkedin.com/company/threenotchgroup

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 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 Three Notch Group