Diving and Marine Services

What Diving and Marine Services does

Tasmanian Divers Group, trading as Commercial Diving & Marine Services (TDG), is Tasmania's largest commercial diving organisation and a privately held project-services provider of underwater construction, inspection, maintenance, salvage and recovery for the state's ports, utilities, infrastructure and marine construction sectors. The business is headquartered at Legana (Launceston) with a second office in Hobart, and serves a concentrated base of enterprise and government counterparties including Hydro Tasmania, TasWater, TasPorts, Shaw Contracting, Hazell Brady Joint Venture, Hall Earthmoving, BridgePro Engineering, Hazell Brothers Group and Sølvtrans.

The service catalogue spans ten lines — Marine Infrastructure Maintenance, Hydroelectric & Dam Support, Potable & Contaminated Water Diving, Construction Support, Asset Maintenance Services, Environmental Surveys, Class & NZ MPI Inspections, Salvage & Recovery, Port & Vessel Services, and Coxswain & Small Vessel Services. Underlying operational technology includes air, nitrox and decompression diving techniques supporting work to 50 metres, supported by an onsite twin-lock recompression (hyperbaric) chamber. Equipment is delivered via containerised dive spreads, portable flyaway systems and trailer-mounted platforms to enable rapid mobilisation across Tasmania's varied marine and inland-water environments. Specialty tooling covers underwater welding, NDT testing, hydraulic and BROCO cutting, cavitation cleaning, hydraulic drilling, underwater grouting and salvage lift planning.

Revenue is generated entirely through project-based professional services contracts, with pricing not publicly disclosed and presumed to be quote-driven by scope, complexity, duration and mobilisation requirements. Operations are delivered under AS/NZS 2299.1:2015 occupational diving compliance and ISO 9001 (QMS) and ISO 45001 (OHS) certifications, and the business is an accredited service provider for Lloyd's Register, DNV, ClassNK and Bureau Veritas for in-water vessel inspection. Marketing and distribution are direct-to-enterprise via the company website, Instagram, and relationship-based field sales — no intermediary channels are used.

Name

Diving and Marine Services

Legal name

Commercial Diving & Marine Services

Website

https://commercialdivingtasmania.com.au

Company type

Private

Founded year

1990

Operating status

Operating

Headcount range

11–50 employees

Short description

Tasmanian Divers Group is Tasmania's largest commercial diving and marine services provider, delivering underwater construction, inspection, maintenance, salvage and class-society vessel inspection for Hydro Tasmania, TasWater, TasPorts, engineering firms and shipping operators.

Ownership category

akta.pro rank

Product category

Commercial Diving Services

NAICS

Support Activities for Water Transportation (4883), Ship Building and Repairing (336611), Navigational Services to Shipping (48833)

SIC

Ship & Boat Building & Repairing (3730), Water Transportation (4400)

akta.pro primary industry

Underwater Salvage & Diving Operations (UWILD, Cutting, Welding) (IMAJANAD)

akta.pro secondary industries

Underwater Hull Services (Diving, In-Water Cleaning, Propeller Polishing, Inspection) (TLAHAMAL), Underwater Hull Inspection, Cleaning & Propeller Services (TLAKAKAJ), Marine Service Provider Coordination (Diving, Inspection, Class/Survey Support) (TLAHAJAI)

Keywords

• Commercial diving services
• Marine infrastructure maintenance
• Underwater construction support
• Hydroelectric facility maintenance
• In-water vessel inspection

Headquarters

HQ city

Hermiston, Oregon

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Commercial Diving Services: Project-based professional services delivering underwater construction, inspection, maintenance, salvage and recovery for ports, hydroelectric facilities, dam infrastructure, potable water systems and marine construction. Revenue is generated through contracted project fees for services spanning routine maintenance to complex high-risk underwater tasks.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

Tasmanian Divers Group (TDG) is Tasmania's largest commercial diving organisation, delivering underwater construction, inspection, maintenance, salvage and recovery services for ports, hydroelectric facilities, dam infrastructure, potable water systems and marine construction. The company operates air, nitrox and decompression diving techniques with containerised dive spreads, portable flyaway systems and trailer-mounted platforms, including a twin-lock recompression chamber supporting deep work to 50 metres.

Product overview

Tasmanian Divers Group (TDG) is a commercial diving and marine services company providing a unified suite of underwater services rather than a software product. The company operates as Tasmania's largest commercial diving organisation, offering ten distinct service categories that span marine construction, inspection, maintenance, salvage, and environmental operations. Services include Marine Infrastructure Maintenance, Hydroelectric & Dam Support, Potable & Contaminated Water Diving, Construction Support, Asset Maintenance Services, Environmental Surveys, Class & NZ MPI Inspections, Salvage & Recovery, Port & Vessel Services, and Coxswain & Small Vessel Services. Operations utilise air, nitrox and decompression techniques with containerised dive spreads and portable flyaway systems for rapid mobilisation across projects ranging from routine maintenance to complex high-risk environments.

Differentiator

Problem solved

Functional benefit

Products and services

• Marine Infrastructure Maintenance

Named customers9 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

Feature2 records

Partnerships

Seven partnerships are on record, tiered minor and core.

• FugrominorStrategic or Co-development Partner · 1 January 2022TDG worked alongside Fugro's offshore installation team during the Bruny Island Submarine Cable Replacement project, supporting marine installation works including cable protection, installation and post-installation verification.
• Lloyds RegistercoreStrategic or Co-development PartnerTDG is an accredited service provider for Lloyds Register, providing in-water inspection capability including hull assessments, structural condition checks, biofouling evaluation and niche-area inspection for commercial vessels. All reporting is presented in clear operational formats aligned with class requirements.
• DNVcoreStrategic or Co-development PartnerTDG is an accredited service provider for DNV, providing in-water class inspections for commercial vessels. Reporting aligns with DNV class requirements and audit standards.
• ClassNKcoreStrategic or Co-development PartnerTDG is an accredited service provider for ClassNK, providing comprehensive in-water inspection services for vessels operating under ClassNK classification.
• Bureau Veritas (BV)coreStrategic or Co-development PartnerTDG is an accredited service provider for Bureau Veritas, providing in-water inspection capability aligned with BV class and audit requirements.
• EnturaminorStrategic or Co-development PartnerTDG worked alongside Entura as part of the Hydro Tasmania Trevallyn Trash Rack Refurbishment project, coordinating engineering and specialist underwater construction activities for intake structure works.
• Billings CranesminorStrategic or Co-development PartnerTDG worked alongside Billings Cranes as part of the Hydro Tasmania Trevallyn Trash Rack Refurbishment project, supporting the replacement of intake trash rack system with a 250-tonne crane in complex underwater operations.

Scale indicators3 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Global Diving & Salvage: North American commercial diving, marine construction and salvage firm delivering harbour, pier, dam and infrastructure underwater services. Comparable full-service commercial diving portfolio including salvage, construction and inspection.
• RJE Global: Australian subsea and commercial diving contractor providing underwater construction, IRM, ROV and topside support services to ports, utilities and offshore clients. Comparable service mix including class society inspection capability and emergency response.
• Ocean Industries (Hallmark Group): Australian marine services company delivering commercial diving, ROV, hydrographic survey and offshore support. Closest mid-sized Australian peer to TDG's portfolio of subsea inspection, construction and class-society inspection services.
• Subsea Global Solutions: Commercial diving and underwater hull services provider delivering class inspection, cleaning, NDT and repair for commercial shipping and offshore clients. Directly comparable in-water class inspection, hull cleaning and biofouling services to TDG.
• Neptune Marine Services: Australian commercial diving and subsea services company delivering underwater inspection, construction, ROV and survey work across offshore and nearshore markets. Closest direct analogue in Australia to TDG's blended inspection, construction and class-society service model.

Broad incumbents

• Fugro: Global geo-data and subsea services firm with significant offshore installation, cable lay and survey capability. Already co-executed with TDG on Bruny Island Cable Replacement; relevant incumbent comparator for marine installation support.
• Saam Smit Towage / Svitzer: Global towage, salvage and port services operator providing harbour towage, emergency response and salvage. Overlaps with TDG's port and vessel services and salvage & recovery offerings at a much larger operational scale.
• Mermaid Subsea Services: Asia-Pacific subsea and offshore services company operating diving support vessels, ROVs and offshore construction assets. Broader offshore-focused player with overlapping underwater construction and inspection capability relevant to TDG's larger project work.
• Boskalis (Dockwise / SMIT Salvage): Global marine services heavyweight with significant salvage, towage and subsea capabilities through SMIT. Operates at a far larger scale but overlaps with TDG's salvage and recovery, wreck removal and emergency response activities.

Regional players

• Hall Contracting: Australian marine and civil contractor with in-house commercial diving capability servicing ports, dams and water infrastructure. Comparable regional Australian footprint with overlapping marine construction and dam support services.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Instagraminstagram.com/tasmaniandiversgroup
• LinkedInlinkedin.com/company/diving-and-marine-services

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

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 Diving and Marine Services