SAMTrasomar
SAM Trasomar is a Monegasque maritime construction company founded in 1994 that specializes in submarine geotextile tube technology for coastal protection and certified underwater works. It serves government entities, port authorities, and private clients across Monaco and the French Riviera through its Mare Nostrum subsidiary network.
- Company typePrivate
- Founded1994
- HeadquartersMonaco, Monaco
- Headcount11–50
- GTM typeB2B
- OfferingServices
What SAMTrasomar does
SAM Trasomar is a Monegasque maritime and submarine construction company founded in 1994 and headquartered at Port de la Condamine in Monaco. It specializes in coastal protection through submarine geotextile tube technology — sand-filled textile tubes deployed parallel to coastlines to mitigate swell, control beach erosion, and create invisible, ecological alternatives to traditional riprap. The technology was originally developed with contributions from US Army Corps of Engineers engineers. The company also delivers a broader portfolio of certified hyperbaric and underwater works, including underwater formwork, concreting, oxy-arc cutting, anode welding, diving-based inspections, mooring system installation, sea outfall work, sealine dismantling, and dredging.
The company is a subsidiary of the S.A.M. des Entreprises J.B. Pastor & Fils, a family-owned Monaco conglomerate dating to 1920 and currently led by Patrice Pastor, which gives Trasomar access to capital, reputation, and integration into larger coastal development consortia. Since 2019, Trasomar has built a regional sub-brand called Mare Nostrum through three acquisitions of regional underwater-works specialists in Nice (2019), Saint-Tropez (2021), and Bandol (2024), creating a network covering the Provence-Alpes-Côte d'Azur coastline. The company is led day-to-day by a small management team including Director Benjamin Dubois de Mont-Marin, Operations Director Michael Cohen, Technical Director Charles Migraise, and Deputy Director Julien Visa.
Trasomar generates revenue through project-based professional services contracts, primarily won via competitive public-sector bidding with government clients (Direction des Travaux Publics de Monaco, Ville de Cannes, Métropole Aix-Marseille Provence, Edeis, Société d'Exploitation des Ports de Monaco, Société des Bains de Mer, Communauté de Communes Golfe de Saint-Tropez), supplemented by a smaller share of private engagements (Cannes Balnéaire, La Ciotat Shipyards). Pricing is not publicly disclosed and is determined by project scope, complexity, materials, and duration. The go-to-market relies on direct enterprise field sales, an extensive project portfolio, regional press coverage, and word-of-mouth within the Mediterranean maritime industry.
SAMTrasomar firmographics
Firmographics- Name
- SAMTrasomar
- Legal name
- S.A.M. TRASOMAR
- Website
- https://trasomar.mc
- Company type
- Private
- Founded year
- 1994
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- SAM Trasomar is a Monegasque maritime construction company founded in 1994 that specializes in submarine geotextile tube technology for coastal protection and certified underwater works. It serves government entities, port authorities, and private clients across Monaco and the French Riviera through its Mare Nostrum subsidiary network.
- Ownership category
- akta.pro rank
SAMTrasomar industry classification
Industry- Product category
- Maritime Construction and Coastal Protection Services
- NAICS
- Support Activities for Water Transportation (4883), Navigational Services to Shipping (488330)
- SIC
- Ship & Boat Building & Repairing (3730)
- akta.pro primary industry
- Revetments, Groynes & Beach Nourishment (IMAFAJAD)
- akta.pro secondary industries
- Underwater Inspection, Maintenance & Repair (UWILD, Diving/ROV, In-water Cleaning) (IMAJAFAJ), Offshore-to-Shore Interface Construction (Landfalls, Shore Crossings, HDD) (IMAFAJAK), Underwater Salvage & Diving Operations (UWILD, Cutting, Welding) (IMAJANAD)
Keywords
Where SAMTrasomar is headquartered
LocationHeadquarters
- HQ city
- Monaco
- HQ country
- Monaco
- HQ region
- Europe
Offices4 records
Markets served
SAMTrasomar business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Infrastructure, Supply Chain, Marketing or Sales
Revenue model
- Maritime and Submarine Construction Services: Project-based professional services revenue from maritime construction works including geotextile tube installation, underwater construction, port development, and coastal protection projects. Revenue is generated through competitive bids for public sector projects and direct engagements for private clients.
- Infrastructure Maintenance Services: Ongoing maintenance contracts for maritime infrastructure including inspections, repairs, and environmental monitoring services.
Go-to-market motion2 records
Distribution channels1 record
Marketing channels3 records
SAMTrasomar product offering
Product offeringCore offering
SAM Trasomar is a maritime and submarine construction company specializing in geotextile tube technology for coastal protection and beach erosion control. The company designs and installs underwater dikes made of sand-filled geotextile tubes placed parallel to coastlines to mitigate swell and prevent beach erosion, alongside comprehensive maritime works including underwater construction, port infrastructure development, mooring systems, and hyperbaric diving operations. Services are delivered through specialized vessels and certified diving teams across Monaco, the French Riviera, and internationally.
Product overview
SAMTrasomar (TRASOMAR) is a Monegasque maritime and submarine construction company founded in 1994, specializing in geotextile tube technology for underwater dike and breakwater construction. The company operates as part of the J.B. PASTOR & FILS Group and offers a portfolio of core products and services including: geotextile tubes filled with sand for coastline protection, comprehensive maritime and submarine construction works, and the MARE NOSTRUM subsidiary network providing underwater, port, and hyperbaric works across the French Riviera. The company primarily serves government authorities, local communities, and private clients in Monaco, France, and internationally.
Differentiator
Problem solved
Functional benefit
Brands
- MARE NOSTRUM: A network of three subsidiary agencies (MARE NOSTRUM NICE, MARE NOSTRUM SAINT-TROPEZ, and MARE NOSTRUM BANDOL) specialising in underwater, port, and hyperbaric works across the Provence-Alpes-Côte d'Azur region.
Products and services
- Geotextile Tubes (Tubes Géotextiles) Submarine geotextile tubes filled with sand, used to create permanent underwater dikes and breakwaters parallel to coastlines for swell mitigation and beach erosion control. Provides an ecological, invisible, and cost-effective alternative to traditional riprap, preserving coastal landscapes and marine life. Technology was originally developed with contributions from US Army Corps of Engineers.
- Maritime and Submarine Works Comprehensive maritime construction services including underwater formwork, concreting, cutting, welding, pile driving, sheet piling, dredging, sea outfall installation, port improvements, and geotextile tube installation and maintenance. Serves government entities, port authorities, and private clients.
- MARE NOSTRUM Underwater and Hyperbaric Works Subsidiary network (MARE NOSTRUM NICE, MARE NOSTRUM SAINT-TROPEZ, MARE NOSTRUM BANDOL) providing underwater inspections, moorings, anchoring, refloating, towing, port works, hyperbaric works, and environmental remediation across the Provence-Alpes-Côte d'Azur region. Certified for hyperbaric work in Mention A per French Decree 2017 and employs Lloyd's Register certified divers.
- ZMEL Ecological Mooring Systems
Quantifiable outcome
- Geotextile dikes shown to be less expensive than riprap over 30-year period per BRL Design Office study
- +1 more outcomes
Companies that use SAMTrasomar
Customer profileNamed customers9 records
Segments3 records
Ideal customer profiles3 records
SAMTrasomar technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
SAMTrasomar partnerships and signals
Strategic signalPartnerships
Six partnerships are on record, tiered core and major.
- J.B. PASTOR & FILS GroupcoreParent company of S.A.M. TRASOMAR since 2016. The J.B. PASTOR & FILS Group (S.A.M. des Entreprises J.B. PASTOR & FILS) is a century-old construction and real estate company based in Monaco, founded in 1920 by Jean-Baptiste Pastor. Currently led by Patrice Pastor, great-grandson of the founder. The group operates in construction, real estate development, and property management in Monaco and internationally.
- Mare Nostrum NicecoreSubsidiary agency based in Nice, France, joined S.A.M. TRASOMAR in 2019. Specializes in underwater, port, and hyperbaric works in the PACA region. Operates specialized vessels including MARE NOSTRUM 2 cargo ship and diving equipment.
- Mare Nostrum Saint-TropezcoreSubsidiary agency (formerly FAUCON, founded 1965) integrated into Mare Nostrum in 2021. Historical partner of Port of Saint-Tropez with infrastructure at the port and in Grimaud. Specializes in port works and diving operations.
- Mare Nostrum BandolcoreSubsidiary agency (formerly ATSM, created 2008) integrated into the group in 2024. Strengthens presence in PACA region, operating in Var and Bouches-du-Rhône with national intervention capacity. Features Lloyd's Register certified divers and ROV capabilities.
- Corinthe IngenieriemajorEngineering consultancy serving as project manager (Maitre d'oeuvre) on multiple major projects including ZMEL de Pampelonne and Plage du Rayol coastal protection works.
- Bouygues Travaux PublicsmajorMajor construction firm engaged as contracting authority or designer on Anse du Portier development projects in Monaco.
Scale indicators2 records
Recent moves7 records
Expansion highlights5 records
SAMTrasomar competitors and assessment
Company assessmentBroad incumbents
- DEME Group: Belgian marine engineering and infrastructure group with coastal protection, land reclamation, and offshore capabilities. Competes on European coastal defense tenders at a larger scale than Trasomar.
- Jan De Nul Group: Belgian marine contractor with dredging, coastal protection, and offshore construction capabilities. Larger incumbent active in Mediterranean port and coastal infrastructure projects.
- Van Oord: Dutch marine contractor specializing in dredging, offshore wind, and coastal protection. Larger international peer competing for the same climate-driven coastal adaptation contracts.
- Bouygues Travaux Publics: Major French construction group with marine and coastal infrastructure capabilities; already a partner on Anse du Portier Monaco projects. Broader portfolio but directly competes on integrated coastal/port bids.
- Boskalis: Dutch global marine services and dredging contractor with extensive coastal defense and beach nourishment capabilities — a broad incumbent in the same end-market as Trasomar.
Direct peers
- Razel-Bec: French civil works contractor (Fayat group) with dedicated marine and geotechnical capabilities, including underwater works and coastal protection projects comparable to Trasomar's offering.
- Travaux Maritimes et Fluviaux (TMF): French specialist in maritime and fluvial works (dredging, underwater construction, port infrastructure) now part of NGE group. Competes head-to-head with Trasomar for PACA-region public works tenders and coastal protection projects.
- Eiffage Génie Civil Marine: French marine and coastal construction arm of Eiffage, directly competing in Mediterranean port works, underwater construction, and coastal protection projects. Most direct comparable in scale and geography for Trasomar's core offering.
Emerging players
- Officine Maccaferri: Italian-headquartered geosynthetics specialist offering alternative coastal and shoreline protection solutions (gabions, geotextiles). Adjacent competitor for nature-based coastal defense projects.
Others
- Corinthe Ingénierie: French marine engineering consultancy serving as project manager (Maitre d'oeuvre) on multiple Trasomar projects including ZMEL Pampelonne. Ecosystem partner rather than competitor, but comparable coastal/marine engineering expertise.
Market position
Strengths4 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights6 records
Customer concentration
SAMTrasomar social profiles
Digital presenceSAMTrasomar compliance and trust
Trust signalCompliance2 records
SAMTrasomar financial estimates
Financial estimateRevenue estimate
Valuation estimate
SAMTrasomar leadership team
Management profileNumber of profiles
Profiles18 records
SAMTrasomar subsidiaries and ownership
Company hierarchySubsidiaries3 records
SAMTrasomar funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
SAMTrasomar M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about SAMTrasomar
What does SAMTrasomar do?
SAM Trasomar is a maritime and submarine construction company specializing in geotextile tube technology for coastal protection and beach erosion control. The company designs and installs underwater dikes made of sand-filled geotextile tubes placed parallel to coastlines to mitigate swell and prevent beach erosion, alongside comprehensive maritime works including underwater construction, port infrastructure development, mooring systems, and hyperbaric diving operations. Services are delivered through specialized vessels and certified diving teams across Monaco, the French Riviera, and internationally.
Is SAMTrasomar a public or private company?
SAMTrasomar is a private company. It is classified as corporate owned and is currently operating.
When was SAMTrasomar founded?
SAMTrasomar was founded in 1994. It employs 11 to 50 people.
Where is SAMTrasomar based?
SAMTrasomar is headquartered in Monaco, Monaco, in the Europe region.
How does SAMTrasomar make money?
Two revenue lines are on record. Maritime and Submarine Construction Services are the primary driver. The others are infrastructure Maintenance Services.
Who are SAMTrasomar's main competitors?
Broad incumbents on record are DEME Group, Jan De Nul Group, Van Oord, Bouygues Travaux Publics and Boskalis. Direct peers are Razel-Bec, Travaux Maritimes et Fluviaux (TMF) and Eiffage Génie Civil Marine. Officine Maccaferri is listed as an emerging player. Corinthe Ingénierie is listed as an others.
Does SAMTrasomar have an API?
No public API is recorded for SAMTrasomar.
What industry is SAMTrasomar in?
SAMTrasomar's product category is Maritime Construction and Coastal Protection Services. Its primary akta.pro industry code is IMAFAJAD, Revetments, Groynes & Beach Nourishment, with a secondary code of IMAJAFAJ, Underwater Inspection, Maintenance & Repair (UWILD, Diving/ROV, In-water Cleaning). Its NAICS code is 4883 and its SIC code is 3730.