Brazil is one of the largest offshore markets on the planet, driven by Petrobras and the Campos and Santos basins. Saturation diving has its place in the shallower infrastructure, while the ultra-deep pre-salt relies mainly on robotics. Macaé is the logistics base, with Belov and Oceânica as local leaders.
Few countries draw as much interest from commercial divers as Brazil. Its offshore industry is among the largest in the world and has seen a historic leap forward with the discovery of the pre-salt, one of the biggest oil provinces of recent decades. That said, working as a saturation diver in Brazil means understanding a nuance that's often overlooked: the pre-salt and human diving don't always go hand in hand. In this guide we separate the myth from the reality and explain where the work for a diver actually is, what's required, and who's hiring.
Campos and Santos: two basins, two realities
Brazilian offshore production is split mainly between two large basins off the south-eastern coast. The Campos Basin, the older of the two, has been producing for decades and holds a huge amount of infrastructure: platforms, subsea lines, wellheads and equipment that needs constant maintenance. It's a mature basin, comparable in that sense to what the North Sea represents in Europe.
The Santos Basin, further south, is where the pre-salt story plays out. It was there, from the mid-2000s onward, that giant fields were confirmed trapped beneath a thick layer of salt, at enormous depths. The pre-salt transformed the scale of the Brazilian industry, but it also raised a technical challenge that completely shapes the diver's role.
The pre-salt and the limits of saturation diving
It's worth being clear here, to avoid setting the wrong expectations: pre-salt fields sit in ultra-deep water, with depths measured in thousands of metres. Those depths are well beyond the reach of any diver, even with the most advanced saturation techniques. That's why installing, connecting and maintaining pre-salt infrastructure is carried out mainly with remotely operated vehicles (ROVs) and automated subsea systems.
So where does saturation diving fit into Brazil? In the infrastructure that is within a diver's operating range: parts of the Campos Basin and shallower structures, lines, risers, moorings and intervention work at depths where a human presence is still the best option. The result is a dual market: a huge volume of ROV activity tied to the ultra-deep pre-salt, and, alongside it, steady demand for divers on the rest of the infrastructure. If you're unsure how deep a diver actually works, start with our guide on what a saturation diver is.
Macaé, the logistics base for the Campos Basin
If the North Sea has Aberdeen, the Campos Basin has Macaé. This city in the state of Rio de Janeiro is known as the country's oil capital and serves as the main support hub for offshore operations in the region. It's home to the service port, the helipads serving the platforms, contractor offices and all the logistics that keep campaigns at sea running.
For a diver, Macaé is an important reference point on the map: a good share of the mobilisations, embarkations and operations in the Campos Basin revolve around it. Understanding the map of bases and regions helps you focus your search; for the bigger picture, see our guide on where saturation diving work is.
Petrobras and the role of the contractors
Petrobras, the state oil company, is the central player in the Brazilian industry and the engine that drives the whole underwater services chain. As the operator, it rarely carries out diving work directly; instead it awards the work to specialist contractors. That structure matters for the diver: your employer will rarely be the operator, but rather the subsea or diving company that won the contract.
Local contractors: Belov and Oceânica
Brazil has its own network of subsea engineering and diving companies. Among the best-known local names are Belov and Oceânica, Brazilian companies with a track record in underwater services and offshore support. Their presence matters because the Brazilian market values the ability to operate with local structure, knowledge of the regulations, and staff familiar with conditions in the country.
Contratistas internacionales
Alongside the local companies, the major international subsea contractors also run campaigns in Brazilian waters, often in partnership or meeting local content requirements. This mix of national and international players widens the entry routes for a professional, though it also means knowing exactly who to approach. In our company directory we bring together contractors and operators in the sector to help you find your bearings.
Requirements for working as a diver in Brazil
Working as a diver in Brazil, and even more so as a foreigner, means meeting several requirements that are worth understanding clearly before investing time and money in the attempt.
Maritime regulations. Diving activity is regulated by the Brazilian Maritime Authority through the rules known as NORMAM, which set out the conditions and requirements for professional diving in the country's jurisdictional waters. Any legal operation must comply with that framework.
Certification. A recognised commercial diving certification is required. That said, acceptance of international qualifications and any conversion requirements depend on the contractor and on local regulation, so it's worth checking case by case. To understand what qualifications exist and how they're recognised, see our page on certifications.
Work permit and language. A foreign diver needs the relevant visa and work permit, and speaking Portuguese is a notable practical advantage, both for paperwork and for operational communication on board. Many campaigns also prioritise local hiring, which an outside candidate needs to bear in mind.
Medical fitness and safety. As in any serious commercial diving market, access to operations depends on a current medical fitness certificate and strict compliance with each contractor's safety protocols. Saturation is a demanding discipline on the body, and the operators working for Petrobras tend to apply high safety standards. Keeping medical documentation up to date and a clean record counts for as much as accumulated experience when it comes to landing a mobilisation.
If you're still building your career, before looking at Brazil it's worth understanding how to train as a commercial diver and what each market has to offer. And to get a realistic idea of pay in the trade, see how much a diver earns.
A real opportunity, with your feet on the ground
Brazil is, without doubt, one of the major commercial offshore diving markets, and its industry will keep generating work for years thanks to the sheer volume of existing infrastructure. But it's a market that rewards fine-grained knowledge: telling apart the ultra-deep pre-salt, dominated by robotics, from saturation work at accessible depths; knowing that Petrobras hires through third parties; and understanding that regulation, language and the preference for local talent make the difference. With those cards on the table, a well-prepared diver can find in Brazil a destination for the long haul.
Frequently asked questions
Is the pre-salt worked with saturation diving?
Only in part. Pre-salt fields sit at water depths of thousands of metres, well beyond a diver's reach, so most of the work is carried out by remotely operated vehicles. Saturation diving is concentrated on infrastructure in shallower basins, such as parts of Campos.
Why is Brazil such a big market for commercial diving?
Because of the volume of its offshore production, led by Petrobras, and decades of infrastructure in the Campos and Santos basins. That fleet of platforms, lines and subsea equipment generates continuous demand for inspection, maintenance and underwater intervention.
What role does Macaé play?
Macaé, in the state of Rio de Janeiro, is known as the country's oil capital and serves as the main logistics base for operations in the Campos Basin: port, helipads, contractor offices and offshore support services.
Which local contractors operate in Brazil?
Among the Brazilian diving and subsea engineering companies, names like Belov and Oceânica stand out, operating alongside major international subsea contractors that also run campaigns in Brazilian waters.
What requirements does a foreign diver need to work in Brazil?
You need to comply with the Brazilian Maritime Authority's regulations (NORMAM) governing diving, hold a recognised commercial diving certification, and have the relevant work permit and visa. Speaking Portuguese is a significant practical advantage.
What certification is required in Brazil?
Besides international commercial diving certification, the activity is subject to regulation by the Brazilian Navy. It's worth checking with each contractor which qualifications it accepts and what local conversions or requirements the operator demands.
Published 10 August 2026 · satdiver.com
Photo: PiktourUK · CC BY via Openverse