Is the Next Great Start-up Opportunity Hiding in the Ocean?
When entrepreneurs think about the next technology boom, their attention usually turns towards artificial intelligence, robotics, biotechnology or space. Far less attention is paid to the enormous economic system covering more than 70 per cent of the Earth’s surface.
The ocean is already a major part of the global economy. It supports shipping, tourism, fisheries, energy, food production and millions of livelihoods. The World Bank has previously estimated that the ocean economy could reach around $3 trillion annually by 2030.
At the same time, the ocean faces an extraordinary collection of problems. Plastic continues to enter aquatic ecosystems, fisheries face pressure, shipping needs to decarbonise, coastal communities need clean energy and freshwater, and governments need much better information about what is happening beneath the surface.
For entrepreneurs, this creates an interesting proposition. Some of the world’s largest environmental problems are also engineering, data and infrastructure problems.
Welcome to the Blue Economy.
What Is the Blue Economy?
The Blue Economy describes economic activity connected to oceans, seas and coastal areas that attempts to create economic value while maintaining or improving the health of marine ecosystems.
It is considerably broader than fishing or seaweed farming. It encompasses areas including maritime transport, offshore renewable energy, aquaculture, marine biotechnology, coastal infrastructure, ocean monitoring, pollution prevention and conservation.
Technology is beginning to change what is possible across many of these sectors. Artificial intelligence can analyse ocean data. Autonomous vehicles can inspect infrastructure. Sensors can monitor biodiversity. Robotics can perform dangerous underwater tasks. New materials can change fishing equipment, while renewable-energy systems can turn waves and tides into electricity.
An ecosystem is already emerging around these opportunities. The 1000 Ocean Startups coalition says organisations within its network have supported more than 850 ocean-focused solutions across areas including pollution, habitat restoration, climate, sustainable ocean resources and resilient coastal communities.
The interesting question is therefore where the next opportunities might emerge.
Eight Areas Worth Watching
The strongest opportunities are unlikely to come simply from inventing another consumer application. Many involve applying technologies that have transformed industries on land to sectors where working at sea remains difficult, dangerous and expensive.
| Opportunity | The Problem | Where Technology Could Help | Existing Signal |
|---|---|---|---|
| Plastic interception | Plastic travels through rivers and waterways before reaching the ocean. | Sensors, computer vision, autonomous collection and interception infrastructure could identify and remove waste earlier. | The Great Bubble Barrier already uses bubble curtains to intercept plastic in waterways. |
| Sustainable aquaculture | Growing seafood demand increases pressure on marine ecosystems and food systems. | Precision aquaculture, alternative proteins, sensors and automated monitoring could improve productivity while reducing environmental impacts. | Investment is growing across sustainable aquaculture and alternative seafood. |
| Ocean renewable energy | Coastal communities need increasing amounts of low-carbon electricity. | Wave, tidal and offshore technologies could turn the movement of the ocean into usable energy. | Offshore renewable energy is becoming an important part of the wider Blue Economy. |
| Maritime decarbonisation | Global shipping remains a significant source of greenhouse-gas emissions. | AI-assisted routing, weather intelligence, vessel optimisation and new propulsion systems could reduce fuel consumption and emissions. | Decarbonisation is becoming a major investment and regulatory priority for shipping. |
| Bycatch prevention | Fishing equipment can unintentionally capture species that fishers were not targeting. | Smart nets, lights, acoustic systems and computer vision could make fishing equipment more selective. | Companies such as SafetyNet Technologies have developed technology aimed at reducing unwanted catch. |
| Wave-powered desalination | Many coastal regions face increasing freshwater stress while conventional desalination can require substantial energy. | Offshore systems could potentially use wave energy directly to produce freshwater. | Norway’s Ocean Oasis is developing wave-powered offshore desalination technology. |
| Autonomous ocean robotics | Monitoring and maintaining the ocean is expensive because humans cannot easily operate continuously underwater. | Autonomous surface and subsea robots could monitor ecosystems, inspect infrastructure and perform marine operations. | Ulysses is developing autonomous maritime robots for surface and subsea applications. |
| Marine habitat restoration | Seagrass, reefs and other marine habitats are being degraded in many parts of the world. | Robotics, ecological engineering, monitoring technology and carefully designed restoration structures could make restoration more scalable. | Ocean robotics are already being applied to activities such as seagrass restoration. |
Stop the Plastic Before It Reaches the Ocean
Plastic pollution provides a useful example of how Blue Economy thinking differs from conventional environmental clean-up.
Removing plastic once it has dispersed throughout the ocean is extraordinarily difficult. An alternative is to intercept it earlier, particularly in rivers and waterways.
The Great Bubble Barrier in the Netherlands demonstrates how unusual these solutions can become. Rather than constructing a physical wall across a river, the system pumps compressed air through a perforated tube installed along the riverbed. The resulting curtain of bubbles creates an upward current that brings plastic towards the surface, where the natural flow directs it into a collection system.
The company reports that its technology can capture floating plastic while allowing boats and fish to continue moving through the waterway.
The wider entrepreneurial opportunity may be even larger than collection itself. Computer vision could identify waste. Sensors could determine where pollution originates. Data platforms could help municipalities understand which interventions work, while new recycling technologies could find uses for material once it has been recovered.
The opportunity is therefore not simply to build a machine that collects rubbish. It is to build an intelligent system for understanding and preventing pollution.
The Ocean Needs Robots
The ocean is an unusually difficult environment in which to work. Sending people underwater is expensive, dangerous and limited by depth, pressure and time.
Robotics changes that equation.
Autonomous underwater and surface vehicles could inspect offshore wind farms, monitor marine habitats, map the seabed, examine underwater cables, identify illegal fishing activity and collect environmental information for scientists.
The opportunity resembles what happened with drones in the air. Tasks that once required helicopters, aircraft or substantial teams can increasingly be performed by smaller autonomous systems.
Companies are already exploring this transition. Ulysses, for example, is developing autonomous maritime robots capable of operating across surface and subsea environments, initially applying the technology to seagrass restoration.
As offshore infrastructure expands, the ability to inspect and maintain it cheaply could become an increasingly important industry.
Can AI Make Shipping More Efficient?
Around 80 per cent of internationally traded goods by volume are transported by sea, making shipping one of the fundamental infrastructures of the global economy.
It also produces substantial greenhouse-gas emissions.
This creates an obvious opportunity for optimisation. Ships operate across changing weather, currents, port conditions and fuel prices. Small improvements in route planning and vessel performance can become significant when applied across large fleets travelling millions of kilometres.
AI systems could combine weather forecasts, ocean conditions, vessel performance and operational data to recommend more efficient routes and speeds.
The opportunity is not necessarily autonomous ships travelling without crews. Some of the most commercially valuable innovations may simply help existing vessels consume less fuel.
In a mature industry operating on enormous scale, even relatively small percentage improvements can matter.
Could the Ocean Produce Freshwater?
One of the more unusual opportunities combines two resources that coastal communities possess in abundance: seawater and waves.
Traditional desalination requires significant amounts of energy to force seawater through filtration systems. Norwegian company Ocean Oasis is developing offshore desalination buoys designed to use wave energy to produce freshwater.
The concept effectively turns the movement of the ocean into the energy source required to desalinate the ocean itself.
If such systems can operate reliably and economically at scale, they could become particularly interesting for islands and water-stressed coastal regions.
It is a useful illustration of what makes the Blue Economy different. The ocean is simultaneously the environment containing the problem, the resource required to solve it and the source of energy that could potentially power the solution.
Smarter Fishing Rather Than Simply More Fishing
Food represents another enormous opportunity.
The challenge is not simply to extract more from the ocean. It is to produce food while reducing damage to marine ecosystems.
Technology could help aquaculture operations monitor water quality, disease, feeding and fish health more precisely. Computer vision could identify species and estimate populations. Sensors and intelligent fishing equipment could reduce unintended catch.
SafetyNet Technologies has explored this problem through technology designed to make fishing more selective, including the use of lights attached to fishing equipment.
This represents an important shift in thinking. Instead of treating environmental protection and commercial fishing as entirely opposing interests, technology can potentially make the activity itself more precise.
The Ocean Has a Data Problem
Perhaps the biggest opportunity is also the least visible.
Compared with the digital information available about cities, roads, consumers and even outer space, enormous parts of the ocean remain difficult and expensive to observe continuously.
That creates what might be described as an ocean data gap.
Better sensors, satellites, autonomous robots and AI could create increasingly detailed information about biodiversity, water quality, fish populations, pollution, seabed infrastructure and changing environmental conditions.
Once that data exists, entirely new services become possible.
Insurers could assess maritime risk more accurately. Governments could detect illegal fishing. Offshore energy companies could inspect infrastructure. Scientists could monitor ecosystems continuously rather than through occasional expeditions.
The opportunity may therefore not simply be building ocean hardware.
It may be building the data infrastructure of the ocean.
The Opportunity Is Bigger Than Seaweed
Seaweed farming has attracted considerable attention because of its potential applications across food, materials, agriculture and climate. But focusing exclusively on seaweed risks missing the much broader technological transformation taking place around the ocean.
The emerging Blue Economy sits at the intersection of several major technological shifts. Artificial intelligence provides better prediction. Robotics makes remote operations possible. Sensors create continuous streams of environmental data. Biotechnology opens new possibilities for food and materials. Renewable-energy technologies create new ways of generating power offshore.
This convergence matters because many ocean industries remain difficult to digitise.
Shipping, fisheries, ports, marine conservation and offshore infrastructure all contain processes that are still labour-intensive, fragmented or dependent on limited information.
Those inefficiencies create room for entrepreneurs.
Where Could a Founder Start?
A Blue Economy company does not necessarily need to begin by designing an expensive underwater robot.
The strongest starting point may be identifying an expensive problem experienced repeatedly by organisations already working around the ocean.
| Start With | Ask |
|---|---|
| Ports and shipping companies | What activity wastes the most fuel, time or labour? |
| Fishers and aquaculture operators | What information would help you operate more efficiently or sustainably? |
| Coastal authorities | Which pollution or infrastructure problem costs you money every year? |
| Offshore energy companies | Which inspection or maintenance task remains dangerous or expensive? |
| Marine scientists | What data do you desperately need but cannot collect continuously? |
| Coastal communities | Which problems involving water, energy, food or climate resilience remain unresolved? |
The technology should come second.
The problem should come first.
That distinction is particularly important in ocean innovation because hardware deployed at sea must survive saltwater, corrosion, storms, pressure and difficult maintenance conditions. A clever prototype in a laboratory is very different from a commercially viable system operating continuously in the North Sea.
The Bigger Picture
The ocean economy presents an unusual entrepreneurial landscape because environmental urgency and commercial opportunity increasingly overlap.
Cleaning rivers, reducing shipping emissions, producing sustainable food, restoring ecosystems, generating renewable energy and understanding what is happening beneath the surface are environmental challenges. They are also engineering, software, robotics, biotechnology and data challenges.
That does not mean every ocean start-up will become a billion-pound company. Ocean technology can be capital intensive, highly regulated and technically unforgiving.
But an increasingly sophisticated ecosystem is forming around the sector. The 1000 Ocean Startups coalition alone now showcases hundreds of ventures and organisations working across ocean innovation.
Perhaps the most interesting comparison is with space.
Over the past two decades, cheaper launches, private investment and better technology helped transform space from a largely government-controlled domain into an increasingly important commercial economy.
Something similar could now happen beneath the waves.
We have spent decades digitising the land and increasingly commercialising the sky. The next great technological frontier may be the part of the planet we still understand least.
The Blue Economy opportunity is not simply about taking more from the ocean. The bigger opportunity may be building technologies that allow humanity to create economic value while leaving the ocean healthier than we found it.