YEMANJA-DIVING

Name

YEMANJA-DIVING

Legal name

YEMANJA

Website

https://yemanja-diving.com

Company type

Private

Founded year

1982

Operating status

Operating

Headcount range

1–10 employees

Ownership category

akta.pro rank

Product category

Underwater Engineering Services

NAICS

Ship Building and Repairing (336611), Water Supply and Irrigation Systems (22131)

SIC

Construction, Mining & Materials Handling Machinery & Equip (3530), Oil & Gas Field Machinery & Equipment (3533)

akta.pro primary industry

Underwater Inspection, Maintenance & Repair (UWILD, Diving/ROV, In-water Cleaning) (IMAJAFAJ)

akta.pro secondary industries

Underwater Hull Services (Diving, In-Water Cleaning, Propeller Polishing, Inspection) (TLAHAMAL), Subsea Construction & IMR Vessel Newbuilds (CSV, DSV, ROV Support) (IMAJACAD), Sonar, Undersea Sensors & Acoustic Detection Systems (IMABAGAD)

Keywords

• Underwater engineering services
• Subaquatic works
• Commercial diving
• Offshore inspection
• Underwater construction

Headquarters

HQ city

Paris

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Distribution channels1 record

Core offering

Yemanja provides commercial diving and subaquatic engineering services to industrial, infrastructure, and offshore clients. Its offerings span inspections and assessments (bathymetric charting, NDT, ROV sonar, micro-camera video), interventions (gabion installation, underwater concrete, structure repair, hull cleaning), sewage and special works in contaminated environments, offshore operations (rock excavation, blasting, welding, cathodic protection), and underwater optic fibre installation and maintenance. FABRIFORM, a proprietary mortar-injection molding process, is used for underwater structural configurations.

Product overview

YEMANJA-DIVING offers a comprehensive suite of subaquatic/underwater works services operating for over 30 years. The company provides five core service offerings: Inspections and Assessments (featuring COFREND-certified personnel, bathymetric charting, NDT, ROV, and sonar inspection), Interventions (including gabion installation, underwater concrete, structure repair, and boat hull cleaning), Sewage and Special Works (polluted environment diving), Offshore Operations (rock excavation, blasting, welding, cathodic protection), and Optic Fibre services. The company also employs FABRIFORM, a proprietary molding technology using mortar injection into porous sheets for structural configurations. These services are delivered across multiple international construction sites in France, Ivory Coast, Algeria, Benin, Gabon, and Yemen.

Differentiator

Problem solved

Functional benefit

Products and services

• Inspections and Assessments Underwater inspection and assessment services featuring SNCF, DDE, EDF approvals, VNF cooperation, bathymetric charting, digital photography, non-destructive testing, digital video via 3CCD micro camera, ROV sonar inspection, and radio detection. Performed by COFREND-certified personnel for infrastructure owners and public utilities.
• Interventions Underwater intervention services including gabion installation, structure repair and reinforcement, casing setup, underwater concrete, water-resistance work, anchorage, slinging, marina planning, cutting of metallic structures, undermining resumption, cofferdam and sheet piling installation, and boat hull cleaning for civil engineering and marine clients.
• Sewage and Special Works Polluted-environment diving operations including sludge cleaning, pumping, mixer repairs, floodgate and sluice valve repairs, stirring rods, ventilators, piping, core boring and sawing works across sewage treatment plants, sewers, nuclear plants, and dredging operations.
• Offshore Offshore underwater works including rock excavation, blasting, anchorage, Hydrotec and Hydroball repairs, spool piece installation, anode installation, resin application, underwater structure maintenance, testing and assessments, environmental works, platform adjustments, cleaning, welding, and cathodic protection testing for offshore oil and gas and marine construction clients.
• Optic Fibre Underwater optic fibre services including installation, repair under daily penalty terms, maintenance (wedging, burial), RD400 radio detection with GPS, and AUTOCAD-based reporting for telecommunications carriers and submarine cable contractors.
• FABRIFORM Proprietary molding technology for underwater structural configurations carried out by injecting specially prepared mortar into the cavities of a porous sheet, used as part of Yemanja's underwater construction service offering.

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Scale indicators2 records

Recent moves1 record

Expansion highlights4 records

Direct peers

• Groupe Hydro Geos: French underwater works and inspection specialist serving nuclear, hydraulic, and civil infrastructure markets. Highly comparable to Yemanja in sewage/special works, French regulatory certification footprint, and EDF/SNCF-style client base.
• Mermaid Maritime: Subsea inspection, repair, maintenance, and cable laying services with focus on Asia-Pacific and Middle East. Comparable geographic-risk profile and project-based underwater services model.
• DeepOcean: Subsea IMR and trenching contractor operating across offshore wind, oil & gas, and cable installation. Comparable to Yemanja in offshore inspection, cable lay/burial, and intervention services, with similar project-based B2B model.
• Comex (Compagnie Maritime d'Expertise): French-headquartered commercial diving and underwater engineering company offering inspection, intervention, ROV, and saturation diving services. Directly comparable to Yemanja across underwater works, oil & gas platform support, and contaminated-environment operations.

Broad incumbents

• Helix Energy Solutions: Offshore well intervention and subsea services company. Comparable in offshore inspection, ROV operations, and intervention services; significantly larger and vessel-heavy but operates in the same project services category.
• TechnipFMC: Large integrated subsea engineering, construction, and services provider. Overlaps with Yemanja's offshore and fiber optic cable installation work but serves as a much larger incumbent in the same project-based services space.
• DOF Subsea: Norwegian subsea IMR, construction, and diving services company with global footprint. Comparable service lines (ROV, diving, intervention) to Yemanja's offshore and inspection offerings.
• Subsea 7: Global subsea construction, inspection, maintenance, and repair (IMR) contractor serving offshore oil & gas and renewables. Overlaps with Yemanja's offshore line but operates at much larger scale with owned vessels and ROV fleets.
• Boskalis Subsea Services: Dutch dredging and offshore contractor with subsea services for cables, pipelines, and platform IMR. Overlaps with Yemanja's offshore works and cable installation, particularly in West African geographies.
• Stolt-Nielsen (Stolt Offshore / SeaKay): Tanker and subsea services operator providing offshore inspection and maintenance to oil & gas clients. Comparable offshore IMR service offering though at substantially larger scale.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/yemanja-diving

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries1 record

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 YEMANJA-DIVING