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10 layers580 nodes2,376 dependencies9 chokepoints112 bottlenecks6,500+ companiesnode size = companies identified

Submarine HVDC and HVAC cables

BOTTLENECK

Only about 60 cable-lay vessels exist worldwide and production is booked through the late 2020s, locking utilities into decade-long supply agreements.

Armored subsea cables for offshore wind export and cross-border interconnectors. Vessel scarcity constrains global deployment; only about 60 cable-lay ships exist. Production is booked through late 2020s at roughly $1m per half-mile; utilities lock supply with 10+ year framework agreements.

What the evidence shows

NKT HV Cables leads with 10+ patent filings, more than double the next closest assignee.

patsnap.com

HVDC ties tightly to converter specs; increasing capacity needs significant changes to converters and cable.

leadventgrp.com
RESCORED JUL 2026near-monopolyscaling4 companies

Who controls it

PrysmianSumitomo ElectricLS Cable & System+1 more tracked

No independently verified market-size figure is published for this node yet.

Where it sits in the stack

Takes in: Armoured cable manufacturing; cable-lay vessel capacity

Sends on: Power transmission under water

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Related nodes

HVAC land cables (33 kV-550 kV)HVDC land cables (up to plus/minus 800 kV)Cable accessories, joints and terminations

Full scorecard, owner shares, supply edges and the full tracked roster are in the desk letter.

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