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GREENDREAMSSubsea Cable Service

About us

A marine engineering company built by people who have been on deck

Greendreams Subsea Cable Service is a trusted engineering partner for carriers, hyperscalers, energy operators and governments building resilient connectivity across oceans.

Founder story

From the deck to the design office

Fernando Sanchez — Founder & Chief Executive Officer

Fernando Sanchez began his career offshore, working survey and installation campaigns across the Atlantic and West Africa before moving into route engineering and project delivery. Two decades at sea and in the design office convinced him that the industry needed a contractor able to own the whole lifecycle of a system — study, permitting, lay, protection, monitoring and repair — rather than hand clients between suppliers at every phase.

He founded Greendreams in Los Angeles in 2009 with a small survey team and a simple standard: nothing goes in the water that the engineering has not fully justified. That standard shaped the company's burial methodology, its reef-sensitive landfall practice and its insistence on 24/7 in-house monitoring rather than outsourced alarms.

Today Fernando leads a global organisation delivering across seven regions, and still personally chairs the technical review for every deep-water campaign the company undertakes.

"The cable is the easy part. Understanding the seabed you are asking it to survive on for twenty-five years — that is the engineering."
Fernando Sanchez, Founder and CEO of Greendreams Subsea Cable ServiceFernando Sanchez in safety gear on an offshore installation vessel

What we stand by

The principles behind every project

01

Engineering first

No cable is laid until the route, seabed and protection design have been fully justified.

02

Lifecycle ownership

We stay with the system from feasibility study through installation, monitoring and repair.

03

Ocean stewardship

Reef-sensitive routing, low-impact burial and environmental compliance are built into every plan.

04

Always available

A 24/7 operations centre and global standby fleet keep networks connected when it matters.

Leadership

The team running our operations

Senior leadership accountable for engineering, delivery and offshore execution.

  • Sarah Mitchell, Operations Director at Greendreams Subsea Cable Service
    Sarah Mitchell, Operations Director

    Sarah Mitchell

    Operations Director

    Sarah keeps the global fleet moving. She spent twelve years with a major subsea contractor before joining Greendreams, running vessel mobilisation, logistics and offshore schedules across the Atlantic, West Africa and Southeast Asia. At Greendreams she owns the operations plan, delivery performance and client-facing progress reporting for every campaign.

  • Elena Vasquez, Technical Director at Greendreams Subsea Cable Service
    Elena Vasquez, Technical Director

    Elena Vasquez

    Technical Director

    Elena leads route engineering, wet plant design and the technical review of every deep-water system. A marine geophysicist by training, she has directed survey and burial campaigns in water depths beyond 4,000 metres and sits on the technical committee that reviews each project before it enters the water.

  • Lukas Brandt, Engineering Manager at Greendreams Subsea Cable Service
    Lukas Brandt, Engineering Manager

    Lukas Brandt

    Engineering Manager

    Lukas heads burial, protection and landfall civils engineering. From crossing design to reef-sensitive shore-end routing and post-lay verification, his team makes sure the cable survives the seabed it is asked to sit on. He also runs the graduate engineering rotation programme.

  • Priya Raman, Projects Manager at Greendreams Subsea Cable Service
    Priya Raman, Projects Manager

    Priya Raman

    Projects Manager

    Priya is the single point of accountability for turnkey delivery. She manages permitting, procurement, work-stream interfaces and milestone reporting from first concept to provisional acceptance. Her background in infrastructure finance helps clients and lenders stay aligned on schedule and budget.

  • Marc Olsen, Marine Operations Lead at Greendreams Subsea Cable Service
    Marc Olsen, Marine Operations Lead

    Marc Olsen

    Marine Operations Lead

    Marc directs offshore crews, ROV intervention and emergency repair mobilisation. He has spent more than 8,000 days at sea on cable ships and offshore support vessels, and he leads the 24/7 repair standby protocol that keeps our clients inside contract response windows.

What we specialise in

Offshore telecommunications

Connectivity for platforms, wind farms, islands and remote coastal communities.

Fibre optic submarine cables

Wet plant engineering, jointing, terminal integration and acceptance testing.

Marine engineering

Burial, protection, crossings, landfall civils and seabed intervention.

Cable maintenance

Zone agreements, depot spares and guaranteed vessel availability.

Network infrastructure

Landing stations, power feed equipment and terrestrial backhaul.

Engineering consultancy

Feasibility, permitting strategy and lender's technical advisory.

Milestones

Seventeen years of building beneath the surface

  1. 2009

    Founded in Los Angeles

    Fernando Sanchez establishes Greendreams as a marine survey consultancy.

  2. 2013

    First full system delivery

    Turnkey unrepeatered system delivered across the Caribbean basin.

  3. 2017

    Fleet partnership

    Long-term charter of two cable-lay and maintenance vessels.

  4. 2020

    24/7 network operations centre

    Global NOC opened, providing continuous optical integrity monitoring.

  5. 2023

    500th project

    Milestone reached across 35 countries and seven regions.

  6. 2026

    Low-impact burial programme

    New reef-sensitive burial methodology adopted fleet-wide.

See our project portfolio

FAQ

About Greendreams

Common questions about our services, operations and how we work.

We engineer, install, protect and maintain submarine fibre-optic and power cable systems for carriers, hyperscalers, energy operators and governments. Our services cover marine survey, route engineering, cable lay and burial, shore-end landings, network monitoring and emergency repair.