Offering commercial diving solutions across all sectors Inshore and Offshore, TAG Diving Services, based in Durban, South Africa, has established itself as the client preferred company for reliable, honest, timeous and dynamic solutions for projects associated to harbours, dams, lakes, rivers, pipelines, reservoirs, (potable, industrial, sewerage).
TAG expertise encapsulates all diving sector skillsets: 
  • Shipping
  • Marine construction support
  • TBM recoveries
  • Saturation
  • Welding – wet, habitat & coding
  • Cement works – Onshore & Offshore
  • General civils Offshore Diving / Project Management support
  • SBM Management & Maintenance Support
  • Survey Support
  • Dredging Management
TAG adheres to the highest level of professional diving standards – TAG is accredited with IMCA, and aspires to apply International Standards to every project.
TAG grows local diving talent accordingly – preparing divers for safe, healthy and professional approaches – initially to Inshore projects, then towards joining the International community of professional divers.
In growing & broadening diver skills, TAG continues to grow as a company, and as a result, now forms part of the OSC Marine Group – capable to offer worldwide services with no logistical hindrances.
The OSC Marine Group has adopted TAG’s philosophy, and joins with foreign partners with a view to passing on the Group’s experience, knowledge and skills towards nurturing local individuals that have a love for water and seek a career of adventures.
The OSC Marine Group supports diving projects with equipment inline with OGP & IMCA guidelines and standards. To this end, where feasible, The Group applies the concept of being ‘Locally-Asseted’ – seeking locally sourced plant and equipment to support projects and thereby local economies.
Whether your requirements involve fresh or salt-water, contaminated or clean, high, low or no visibility, TAG and the OSC Marine Group can assist using any methodology – Air, Mixed Gas or Saturation.


For any duration – Long term, medium, short (e.g.: – TUP (Transfer Under Pressure)
From any conforming dive platform – DP, Moored, Barge, Damwall
With any conforming asset spread (e.g.: Built-in / Modular)
To resolve any intervention – Inspection, Greenfield, Pipe / Riser, R&M, SBM, Technical




For either / combination of any discipline:


Engineering support

Equipment rental / sourcing

FPSO support

Oil Rig layup interventions

Pipeline / PLEM / Riser works

Subsea greenfield installations

Project management

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TAG / OSC Marine Group can assist with:

Anchorage integrity inspection / survey

Anchorleg replacement – full or shackle segment(s)

Buoyancy aid renewals

Catenary sand scour / touchdown / weardown inspection

Dome / main bearing renewals

Floating / Subsea renewals – full string or segments



DIVING: Air, Mixed Gas, Saturation 
(or a combination as required)

Advanced concrete methods for quay wall capping

Airlifting operations

Barge operations – dumb barge / pontoon configurations

Desalination projects

Desilting / Dam wall repairs / Valve interventions

Engineering support to complex underwater project phases

Life extension of assets by means of cathodic protection / paint condition /
NDT programs




CCTV / photographic surveys and reports

Class Surveys

Change of Ownership  

In Lieu of Drydocking Surveys

Crack detection 

Marine growth and paint condition

Damage assessment Surveys

NDT for plate thickness recordings

Pintle readings



TAG Diving is certified by the following:

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