Offshore critical infrastructure protection

Detection, classification, and tracking of surface and subsurface threats to critical infrastructure and defence installations.

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Offshore critical infrastructure protection

Detection, classification, and tracking of surface and subsurface threats to critical infrastructure and defence installations.

Get in touch

Offshore critical infrastructure protection

Solutions for detection, classification, and tracking of subsurface activities that pose a threat to critical infrastructure and defence

installations.

Get in touch

Built by professionals from leading companies

With experience from

Core use cases

Short-range subsea sensing for European critical infrastructure

Avoid accidental incidents

Early detection of vessels, dragged anchors, fishing gear, and other nearby activity gives operators time to act before accidental contact causes damage, disruption, or costly repairs.

Avoid accidental incidents

Early detection of vessels, dragged anchors, fishing gear, and other nearby activity gives operators time to act before accidental contact causes damage, disruption, or costly repairs.

Mitigate deliberate attacks

Continuous monitoring around critical assets helps identify suspicious subsurface activity, supporting faster assessment and response to attempted interference, sabotage, or attack.

Mitigate deliberate attacks

Continuous monitoring around critical assets helps identify suspicious subsurface activity, supporting faster assessment and response to attempted interference, sabotage, or attack.

Protect asset integrity

Accurate, localised monitoring helps operators understand where subsea cables and pipelines are positioned, whether they have moved, and where they may be exposed, unsupported, or otherwise at risk.

EU defence applications

Short-range sensing supports selected maritime and subsea defence operations around strategically important installations. Specific applications and operational capabilities are discussed directly with relevant authorities and defence partners.

Use cases

One tool. Every use case.

Debugging and refactoring
Build frontend and backend seamlessly. Exact understands your entire stack—from React components to database queries.
Debugging and refactoring
Find bugs instantly with precise error detection. Refactor with AI that understands dependencies across your entire codebase.
API integration
Connect to any API in minutes. Exact generates type-safe requests, handles authentication, and suggests error handling.
Testing & CI/CD
Write tests faster with AI-generated test cases. Set up CI/CD pipelines with precise configuration. Ship with confidence, every time.

Distributed acoustic sensing

Proprietary fibers and deployment

AI-native classification and tracking

Distributed acoustic sensing

Today's distributed acoustic sensing solutions are built for long range, say 50-100 km. That is good, there are plenty of use cases for long-range DAS. However, this comes at the cost of reduced sensitivity, specifically low signal-to-noise ratio and inability to capture high-frequency signals. Gjallarhorn offers solutions for shorter ranges, from a few hundred meters up to around 5 km, which do not suffer from these shortcomings. Our short-range, high-sensitivity, cost-efficient solutions provide better detection, better classification, and better tracking of surface and subsurface threats near your critical infrastructure - faster, simpler, and at significantly lower cost.

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Core technologies

Short-range DAS. Faster deployment.

Fiber Optic Sensors

Detect subsurface threats using state-of-art fiber optic DAS.

Aerial Drones

Deploy fibers quickly from above the surface.

Surface Vessels

Deploy fibers cheaply and safely from the surface.

Remotely Operated Vehicles

Deploy fibers discretely from underneath the surface.

Artificial Intelligence

Analyze sensor data and classify threats with superior precision.

Communications Systems

Relay threat warnings to SCADA systems or command and control centers.

Testimonials

Loved by developers. Built for productivity.

Exact cut my development time in half. The AI actually understands what I'm building and suggests exactly what I need. No more wading through irrelevant completions.

Sarah Chen

Senior Engineer

Zero setup, instant productivity. I switched from Cursor and never looked back. Exact just works, and it's noticeably faster. The refactoring feature alone is worth it.

Get the exact answer with line numbers and context. My productivity has skyrocketed.

Finally, an AI editor that doesn't feel like it's guessing. Context-aware suggestions that actually make sense. It's like pair programming with someone who knows your codebase.

Best AI autocomplete I've ever used. It's like Exact reads my mind—one suggestion, always the right one. And the privacy-first approach gives me peace of mind.

Ethan R

Devops

No more wading through irrelevant completions.

I was skeptical about AI coding tools until Exact. The precision is unmatched—it gets my code style, understands dependencies, and never breaks my builds. Game changer.

Emma Larsson

Full-stack Developer

Exact eliminated the back-and-forth I had with other AI assistants. Ask once, get the exact answer with line numbers and context. My productivity has skyrocketed.

The privacy-first approach gives me peace of mind.

Exact cut my development time in half. The AI actually understands what I'm building and suggests exactly what I need. No more wading through irrelevant completions.

Sarah Chen

Senior Engineer

I was skeptical about AI coding tools until Exact. The precision is unmatched—it gets my code style, understands dependencies, and never breaks my builds. Game changer.

Emma Larsson

Full-stack Developer

Best AI autocomplete I've ever used. It's like Exact reads my mind—one suggestion, always the right one. And the privacy-first approach gives me peace of mind.

Ethan R

Devops

Get the exact answer with line numbers and context. My productivity has skyrocketed.

The privacy-first approach gives me peace of mind.

Finally, an AI editor that doesn't feel like it's guessing. Context-aware suggestions that actually make sense. It's like pair programming with someone who knows your codebase.

Zero setup, instant productivity. I switched from Cursor and never looked back. Exact just works, and it's noticeably faster. The refactoring feature alone is worth it.

Exact eliminated the back-and-forth I had with other AI assistants. Ask once, get the exact answer with line numbers and context. My productivity has skyrocketed.

No more wading through irrelevant completions.

Exact cut my development time in half. The AI actually understands what I'm building and suggests exactly what I need. No more wading through irrelevant completions.

Sarah Chen

Senior Engineer

Finally, an AI editor that doesn't feel like it's guessing. Context-aware suggestions that actually make sense. It's like pair programming with someone who knows your codebase.

I was skeptical about AI coding tools until Exact. The precision is unmatched—it gets my code style, understands dependencies, and never breaks my builds. Game changer.

Emma Larsson

Full-stack Developer

Zero setup, instant productivity. I switched from Cursor and never looked back. Exact just works, and it's noticeably faster. The refactoring feature alone is worth it.

Best AI autocomplete I've ever used. It's like Exact reads my mind—one suggestion, always the right one. And the privacy-first approach gives me peace of mind.

Ethan R

Devops

Exact eliminated the back-and-forth I had with other AI assistants. Ask once, get the exact answer with line numbers and context. My productivity has skyrocketed.

Get the exact answer with line numbers and context. My productivity has skyrocketed.

No more wading through irrelevant completions.

The privacy-first approach gives me peace of mind.

Pricing

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AI autocomplete (basic)

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50+ languages support

Terminal integration

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Popular

€29

/month

For developers who need advanced features and unlimited AI requests.

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Features

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Unlimited AI requests

Advanced context (full codebase)

Priority AI responses

Smart refactoring tools

Multi-file editing

Enterprise

Custom

For teams that need dedicated support, custom deployment, and advanced security.

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Features

Everything in Pro

Unlimited team members

Self-hosted deployment

SSO & SAML

Custom AI model training

Dedicated support manager

SLA guarantees

Monthly

Yearly

Save 20%

Free

€0

/month

Perfect for trying Exact. All core features included, forever.

Get started

Features

Unlimited local projects

AI autocomplete (basic)

Code chat assistant

50+ languages support

Terminal integration

Pro

Popular

€29

/month

For developers who need advanced features and unlimited AI requests.

Start 14-day trial

Features

Everything in Free

Unlimited AI requests

Advanced context (full codebase)

Priority AI responses

Smart refactoring tools

Multi-file editing

Enterprise

Custom

For teams that need dedicated support, custom deployment, and advanced security.

Contact sales

Features

Everything in Pro

Unlimited team members

Self-hosted deployment

SSO & SAML

Custom AI model training

Dedicated support manager

SLA guarantees

Monthly

Yearly

Save 20%

Free

€0

/month

Perfect for trying Exact. All core features included, forever.

Get started

Features

Unlimited local projects

AI autocomplete (basic)

Code chat assistant

50+ languages support

Terminal integration

Pro

Popular

€29

/month

For developers who need advanced features and unlimited AI requests.

Start 14-day trial

Features

Everything in Free

Unlimited AI requests

Advanced context (full codebase)

Priority AI responses

Smart refactoring tools

Multi-file editing

Enterprise

Custom

For teams that need dedicated support, custom deployment, and advanced security.

Contact sales

Features

Everything in Pro

Unlimited team members

Self-hosted deployment

SSO & SAML

Custom AI model training

Dedicated support manager

SLA guarantees

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Command line

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npm install -g exact

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Command line

Install via npm and start coding instantly from your terminal.

npm install -g exact

Copy

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FAQ

Questions? We've got answers.

What does Gjallarhorn do?

What is distributed acoustic sensing (DAS)?

Why focus on short-range?

How do Gjallarhorn deployment methods differ?

How does AI help classify and track threats?

Which markets do Gjallarhorn serve?

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