TSM3D

What TSM3D does

TSM3D (Travaux Sous-Marins 3D) is a French specialty underwater services contractor founded in 2002 and headquartered in La Ciotat within the historic Mediterranean shipyard. The firm operates as a tightly held SAS with ~15 employees, €129,900 of share capital, and a co-founder management team (Olivier Jaubert, Sébastien Boissonnet) that holds combined designations as divers' inspectors, hyperbaric prevention advisers, and diving equipment maintenance technicians. Its operations rely on specialized, mobile hyperbaric apparatus — Launch and Recovery Systems (LARS), therapeutic chambers housed in climate-controlled 20-foot containers, surface-supplied diving control rooms with air/gas analyzers and KMB helmet communications, SRP valve cases, compressors, and bottle racks — enabling worldwide deployment from containerized bases.

The service portfolio spans four interlocking offerings: (i) Class 2 Mention A commercial diving services authorized for chemical and explosive risk environments; (ii) underwater construction including FSRU terminal support, pipeline laying, PLEM installation, and mooring deployment; (iii) subaquatic inspection of dams, bridges, quays, and submerged infrastructure, delivered as photo/video-augmented reports; and (iv) offshore diving works — power cable installation, wreck removal, cathodic protection, and confined-space operations in sewage/water-treatment assets. Equipment rental (helmet sets, umbilicals, LARS, therapeutic chambers, compressors, control rooms) is offered as a complementary stream. Customers include offshore construction firms (Geocean, LD TRAVOCEAN), renewable-energy projects (Thornton Bank Offshore Windfarm in Belgium), and government port authorities across France, Belgium, UAE, Bangladesh, Libya, Algeria, Benin, Ivory Coast, and Morocco.

The business model is project-based professional services plus equipment rental, with direct enterprise contracting as the sole distribution channel. Pricing is quote-based and not publicly disclosed. The firm derives its competitive position from a stacked regulatory profile — French hyperbaric certification since October 2019, QUALIANOR quality certification, SNETI industry membership — combined with owner-operated, internationally mobile equipment and a multi-decade operating track record. Marketing is minimal, limited to a LinkedIn page and direct relationships within the French and international underwater contracting community.

Name

TSM3D

Legal name

SAS TSM3D

Website

https://tsm3d.fr

Company type

Private

Founded year

2002

Operating status

Operating

Headcount range

11–50 employees

Short description

TSM3D is a French specialty diving services contractor providing hyperbaric underwater construction, inspection, and maintenance for offshore energy, port infrastructure, and marine engineering projects across Europe, Africa, and the Middle East.

Ownership category

akta.pro rank

Product category

Commercial Diving Services

NAICS

Support Activities for Water Transportation (4883)

akta.pro primary industry

Underwater Hull Services (Diving, In-Water Cleaning, Propeller Polishing, Inspection) (TLAHAMAL)

akta.pro secondary industry

Underwater/Port Infrastructure Security (Dive Teams, Hull & Pier Inspections) (BPAKALAH)

Keywords

• Commercial diving services
• Underwater construction
• Subaquatic inspections
• Diving equipment rental
• Offshore diving works

Headquarters

HQ city

La Ciotat

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Revenue model

1. Diving Services: Professional diving services for underwater construction, inspection, and maintenance including port maintenance, offshore installations, pipeline laying, cable installation, and wreck removal. Revenue is project-based with international scope.
2. Equipment Rental: Rental of specialized diving equipment including helmets, umbilicals, LARS, therapeutic chambers, compressors, control rooms, and bottle racks. Most equipment is available for rental.

Go-to-market motion2 records

Distribution channels2 records

Marketing channels1 record

Core offering

TSM3D is a French commercial diving services company that performs underwater construction, subaquatic inspections, offshore diving works, and maritime/fluvial diving operations for offshore energy, port infrastructure, and marine construction clients. It also rents diving equipment (LARS, therapeutic chambers, control rooms) and serves individual boat/yacht owners with vessel maintenance services.

Product overview

TSM3D (Travaux Sous-Marins 3D) is a specialized underwater services company offering a comprehensive suite of diving services including underwater construction, inspection, expertise, and maintenance. The company operates commercial diving services and equipment rental, with capabilities spanning offshore operations (pipeline installation, FSRU construction, cable laying) and nearshore/subaquatic works (quay inspection, wreck removal, confined space work, structural inspections). Their service portfolio includes four core offerings: Commercial Diving Services (qualified Class 2 Mention A divers), Underwater Construction, Subaquatic Inspection Services, and Offshore Diving Works. The company also provides equipment rental including LARS, therapeutic chambers, control rooms, and other diving support equipment available for lease.

Differentiator

Problem solved

Functional benefit

Products and services

• Commercial Diving Services End-to-end commercial diving operations delivered by certified divers using surface-supplied and saturation diving systems for enterprise and government clients in offshore and maritime environments.
• Underwater Construction Subaquatic construction works for offshore energy operators, port authorities, and marine construction contractors, executed with specialized diving crews and equipment.
• Subaquatic Inspection Services Underwater inspection of marine structures, hulls, and submerged assets for enterprise infrastructure owners and port authorities.
• Subaquatic Diving Works (Maritime and Fluvial) Diving operations performed in both maritime (sea) and fluvial (river) environments, covering construction, inspection, and intervention tasks for public and private clients.
• Offshore Diving Works Specialized diving works delivered to offshore energy operators and marine contractors, leveraging hyperbaric equipment including LARS and mixed gas systems for complex underwater interventions.
• Diving Equipment Rental Rental of specialized diving equipment including Launch and Recovery Systems (LARS), therapeutic chambers, dive control rooms, surface-supplied diving systems, mixed gas panels, and oxygen analyzers to other diving operators and contractors.

Named customers4 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

Feature4 records

Partnerships

One partnership is on record.

• SNETIcoreStrategic or Co-development PartnerTSM3D is a member of the National Union of underwater contractors (SNETI), which represents and supports underwater contracting companies in France, providing industry advocacy and professional standards alignment.

Scale indicators4 records

Recent moves5 records

Expansion highlights4 records

Regional players

• Mermaid Maritime: Asia-Pacific subsea services contractor with diving, ROV, and cable-lay capabilities serving offshore energy clients. Comparable service offering to TSM3D but primarily operates across Southeast Asia/Middle East rather than Europe/Africa.

Direct peers

• Comex S.A. French-headquartered commercial diving and underwater engineering firm offering hyperbaric interventions, ROV operations, and subsea construction services. Closely comparable to TSM3D in geography (France), service mix (diving + offshore), and customer base (offshore energy, ports, defense).
• Soderec International: French commercial diving contractor specializing in underwater works for ports, dams, bridges, and offshore installations. Direct competitor in continental Europe with an identical portfolio of inspection, maintenance, and construction diving services.
• N-Sea Group: Dutch-based provider of subsea solutions including commercial air diving, ROV, and UXO services to offshore energy and marine infrastructure clients. Comparable in customer segments (offshore wind, oil & gas, ports) and diving-led service model.

Broad incumbents

• Subsea 7: Major global contractor for subsea construction, pipelay, and cable-lay projects including offshore wind. Competes with TSM3D for offshore installation diving scopes as part of much larger integrated SURF and renewables contracts.
• Helix Energy Solutions Group: US-based offshore energy services firm providing subsea well intervention, ROV, and diving services. Overlaps with TSM3D in offshore oil & gas diving scopes and owns operating diving assets of similar character.
• Oceaneering International: Global subsea engineering and intervention contractor providing diving, ROV, and offshore services to oil & gas, offshore wind, and defense customers. Overlaps with TSM3D on offshore diving and inspection but operates at vastly greater scale and service breadth.
• James Fisher and Sons (JFD): UK-listed marine services group providing commercial diving, hyperbaric systems, and submarine rescue services worldwide. Comparable portfolio of hyperbaric operations, subsea diving, and life-support equipment supply to TSM3D.
• Fugro: Dutch global geo-data specialist offering site characterization, subsea inspection (including divers/ROVs), and marine asset integrity services. Overlaps with TSM3D's dam, bridge, quay, and offshore infrastructure inspection work but at enterprise scale worldwide.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat3 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/tsm3d

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 TSM3D