Turrell, Hall & Associates

What Turrell, Hall & Associates does

Turrell, Hall & Associates, Inc. is a Naples, Florida-based marine and environmental consulting firm established in 1988. The firm delivers two integrated service lines: Marine Engineering (waterfront and marina design, seawall assessment, dock and dry-storage design, construction bidding and oversight) and Environmental Services (habitat mapping, wetland determinations, protected species surveys, environmental resource permitting, submerged resource surveying, and post-permit compliance). It serves commercial marina operators, luxury and megayacht marina developers, private residential waterfront owners, government agencies, and private developers across Florida, the Bahamas, the wider Caribbean, and select international locations (Seychelles). The firm's technology stack centers on conventional engineering tools including HYPACK hydrographic survey, GPS mapping, AutoCAD, and GIS, supported by in-house benthic and submerged resource survey capabilities via scuba, photography, and videography.

The business is a privately held professional services firm operating on custom-quoted, project-based engagements with multi-year contract cadences. Revenue is generated through direct B2B enterprise engagement from initial planning through permitting and construction management; pricing is bespoke and not publicly disclosed. Ownership is concentrated among three principals (Todd T. Turrell, P.E.; Tim Hall; Jeff Rogers), with Office Manager Amanda Horton added as a stockholder in 2024 to broaden the ownership base. The firm maintains recurring coordination with federal and state regulatory bodies (USACE, FDEP, FWC, USFWS, SFWMD, Bahamas B.E.S.T.) and partnerships with niche operators (Dream Harbors for marina operations consulting; Bellingham Marine for floating dock supply). Marquee projects include Albany Marina (71 slips, 50-240 ft, Bahamas), Marco Island Yacht Club (120 slips), Royal Island Marina (200 slips, vessels to 300 ft), and Eden Island (Seychelles), alongside post-disaster work such as Tin City seawall restoration after Hurricane Irma.

The firm's value proposition is anchored in regulatory navigation expertise and a specialty in megayacht marina design (vessels 200-300+ ft), backed by decades of Florida and Caribbean project data. Go-to-market relies on a project-portfolio website, downloadable project booklets, environmental education content, and bottom-of-funnel referrals from yacht clubs, developers, and agency relationships rather than paid acquisition. The model is differentiated but inherently constrained by senior-principal bandwidth and project-based revenue lumpiness.

Name

Turrell, Hall & Associates

Legal name

Turrell, Hall & Associates, Inc.

Website

https://turrell-associates.com

Company type

Private

Founded year

1988

Operating status

Operating

Headcount range

11–50 employees

Short description

Turrell, Hall & Associates is a Naples, Florida-based marine and environmental consulting firm, founded in 1988, providing engineering design, regulatory permitting, and construction management for waterfront and megayacht marina projects in Florida, the Bahamas, the Caribbean, and select international markets.

Ownership category

akta.pro rank

Product category

Marine and Environmental Consulting

NAICS

Environmental Consulting Services (541620), Environmental Consulting Services (54162)

SIC

Services-Engineering, Accounting, Research, Management (8700)

akta.pro primary industry

Subsea & Nearshore Civil Works (Trenching, Rock Placement, Mattressing) (IMAFAJAI)

Keywords

• Marine engineering consulting
• Environmental consulting services
• Waterfront design
• Regulatory permitting
• Marina engineering

Headquarters

HQ city

Naples

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Marine Engineering Consulting Services: Professional consulting services for waterfront projects including planning, design, engineering, permitting, and construction management. Services provided from initial concept through construction completion for commercial marinas, luxury yacht facilities, private docks, and waterfront developments.
2. Environmental Consulting Services: Environmental expertise including habitat enhancement, mitigation, marine and terrestrial habitat mapping and analysis, wildlife studies, impact assessments, wetland determinations, and jurisdictional determinations. Services include post-permit compliance guidance and management plan drafting.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

Turrell, Hall & Associates provides marine engineering and environmental consulting services for waterfront development projects. Services include planning, design, engineering, permitting, and construction management for marinas, docks, seawalls, and luxury yacht facilities, alongside environmental services such as habitat mapping, wildlife studies, wetland determinations, protected species surveys, and environmental resource permitting. The firm serves clients across Florida, the Caribbean, Bahamas, and international locations.

Product overview

Turrell, Hall & Associates is a marine and environmental consulting firm established in 1988, offering two primary service lines: Marine Engineering Services and Environmental Services. The Marine Engineering Services include waterfront engineering, seawall assessments, dock design, commercial marina design, construction oversight, and permitting. The Environmental Services cover habitat enhancement, wetland determinations, wildlife surveys, protected species management, submerged resource surveying, and environmental education. The firm operates globally with significant presence in Florida, the Caribbean, and Bahamas. Associated offerings include Environmental Education resources and Project Booklets documenting completed work.

Differentiator

Problem solved

Functional benefit

Products and services

• Marine Engineering Services

Quantifiable outcome

• Emergency response completed within 30 days - Tin City reopened after Hurricane Irma devastation within one month of the storm
• +1 more outcomes

Named customers11 records

Segments5 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Nine partnerships are on record, tiered core and minor.

• Dream HarborscoreStrategic or Co-development PartnerAssociation with Dream Harbors for operational expertise, facility management, and marina staff training including specialized areas such as fuel spill and emergency response procedures. Services include detailed cost estimating, sales proformas, operational aspects, staff training, and marina management.
• Bellingham MarinecoreTechnology or IntegrationSupplier of floating concrete docks for Albany Marina project. Bellingham Marine's finest docks were installed at Albany Marina with carefully designed utilities for shore power capability.
• U.S. Army Corps of EngineerscoreOthersFederal agency involved in permitting and regulatory oversight for marine and environmental projects. Firm works closely with this agency on projects involving navigation, dredging, and wetland impacts.
• Florida Department of Environmental ProtectioncoreOthersState environmental agency providing permitting oversight and regulatory guidance for marine construction, environmental resource permits, and sovereign submerged lands issues.
• Florida Fish and Wildlife Conservation CommissioncoreOthersState agency for wildlife protection providing permits for gopher tortoise relocation, protected species surveys, and wildlife monitoring requirements.
• U.S. Fish & Wildlife ServicecoreOthersFederal agency involved in protected species issues, wetlands jurisdiction, and environmental compliance for marine and coastal projects.
• South Florida Water Management DistrictcoreOthersRegional water management agency providing permits for wetland impacts, environmental resource permits, and coordination on restoration projects like CERP.
• Bahamas Environmental, Science and Technology Commission (B.E.S.T.)coreOthersBahamas Government commission providing environmental permitting for projects in the Bahamas including Environmental Impact Assessments and environmental clearance.
• Bahamas Marine ConstructionminorImplementation/ SI/ Consulting PartnerMarine construction contractor used for project construction at Albany Marina and other Bahamas projects.

Scale indicators5 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• AECOM: AECOM is a global engineering and environmental consulting firm with marine, coastal, and waterfront service lines that compete with Turrell, Hall & Associates across the same client segments, though as part of a vastly larger multidisciplinary portfolio rather than a focused boutique.
• Kimley-Horn: Kimley-Horn is a large U.S. engineering firm with an active waterfront, marina, and environmental practice, offering capabilities that overlap with Turrell, Hall & Associates across marina design, permitting, and environmental services but as part of a much broader transportation, land, and water portfolio.
• Tetra Tech: Tetra Tech is a leading environmental and engineering consultancy with strong coastal, marine, and water resources practices that overlap with Turrell, Hall & Associates' marine and environmental services, but at much greater scale and breadth across geographies and sectors.
• WSP: WSP is a global engineering consultancy with marine/coastal and environmental practices that compete with Turrell, Hall & Associates on waterfront development, marina design, and permitting work, but within a diversified international portfolio.

Direct peers

• Anchor QEA: Anchor QEA is a waterfront, marine, and environmental engineering consultancy serving coastal development, marina, port, and water infrastructure sectors with a service mix directly overlapping Turrell, Hall & Associates' combined engineering and environmental practice.
• Taylor Engineering: Taylor Engineering is a Florida-headquartered coastal and water resources engineering firm providing planning, design, modeling, and permitting services directly comparable to Turrell, Hall & Associates' marine and environmental engineering work.
• Applied Technology & Management: Applied Technology & Management is a coastal, marina, and waterfront engineering consulting firm providing planning, design, permitting, and construction management services highly comparable to Turrell, Hall & Associates' marine engineering practice, with overlapping megayacht marina projects and luxury waterfront clients.
• CSA Ocean Sciences: CSA Ocean Sciences is a marine environmental consulting firm providing environmental impact assessments, permitting support, and biological surveys for waterfront and offshore projects, directly comparable to Turrell, Hall & Associates' environmental consulting and submerged resource surveying capabilities.
• Moffatt & Nichol: Moffatt & Nichol is one of the largest marine infrastructure engineering consultancies globally, providing waterfront, port, harbor, and coastal engineering services directly comparable to Turrell, Hall & Associates' core marine engineering and design offering.

Others

• Environmental Science Associates (ESA): ESA is an environmental consulting firm providing CEQA/NEPA permitting, habitat assessment, and biological surveys for waterfront and coastal development, comparable in environmental practice to Turrell, Hall & Associates but without the dedicated marine engineering design capability.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/168723213142461

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 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 Turrell, Hall & Associates