Innovating and Delivering the Best Value Subsea Networks on the Planet

Subsea Fiber Optic Cable

From the very beginning, SubCom has been a leader in defining the subsea cable industry. We continue that proud tradition today as we drive ever-improving quality and efficiency of undersea data transmission. SubCom designs, manufactures, deploys, maintains, and operates modern networks with an industry-leading track record for delivery and performance, providing the most comprehensive technical and marine expertise, with the highest quality, and most reliable solutions.

+ Times Around the Earth
+ Systems Deployed
% Delivered On-Time
+ Optical Repeaters
~Since 1955~

Our Capabilities


SubCom combines our research and development, broad product portfolio, manufacturing facilities, fleet of ships, and management team to offer numerous unique capabilities for implementing flexible and scalable repeaterless to ultra-long-haul subsea networks. We engineer custom-tailored systems anywhere on the planet.

With a tradition of exceptional reliability, performance and service, and technical expertise, we support our customers’ needs from system design, permitting and marine engineering solutions, manufacturing, installation, to system testing for traditional data transport requirements, as well as scientific and oil and gas applications.

Our industry-leading track record allows us to provide robust, highly reliable installed systems on time that deliver the most value to our customers while consistently exceeding expectations for performance and partnership.


Marine Maintenance:
For more than half a century, SubCom’s fleet has sailed the oceans of the world, maintaining the undersea cables that form the backbone of the international communications network. Maintenance is performed by the industry’s most capable fleet of cable ships from their strategic locations around the globe.

System Operations:
SubCom’s Global Technical Support Center (GTSC) provides dedicated support to troubleshoot system issues and SubCom’s Network Operations Center (NOC) services provide support to keep systems operating smoothly and efficiently 24/7/365.

Customer Testimonials

"Djibouti Telecom developed a great partnership with SubCom during DARE-1 project implementation. We appreciate their attention to detail and proactive approach to bring our regional cable to life."

Mohamed Ahmed Director Business International Djibouti Telecom, DARE-1 Chair

"Since the implementation of the Svalbard system in 2004, Space Norway has enjoyed a strong and enduring relationship with SubCom. For over 14 years, SubCom has delivered unprecedented support for this unique cable system, providing uninterrupted service during three capacity upgrades and a CLS equipment consolidation and relocation operation, helping to meet Space Norway's current and future growth requirements. We strongly believe in SubCom's project management and engineering teams to deliver upgrades with professionalism and dedication, and when coupled with the long-term support provided by their Global Technical Support Center (GTSC), we benefit from a level of service and commitment that is second to none in the industry."

Jostein Rønneberg CEO of Space Norway

"Following a very successful transition to SubCom in 2017 as the new supplier for Telstra’s subsea maintenance requirements in the South Pacific Marine Maintenance Zone, the team has continued to provide exceptional levels of service, from the finance team right through to the operational team. It is great to have such a high level of engagement and support."

David Copeland Senior Procurement of Telstra

"The collaboration between MainOne and SubCom for the MainOne system was a great success that brought connectivity and economic opportunity along Africa’s west coast. SubCom’s superior technology created a robust and highly-reliable system, and the excellent teamwork and ongoing support we’ve received from everyone at SubCom is again front and center, on our latest MainOne expansion. We couldn’t imagine doing this with any company other than SubCom."

Funke Opeke CEO of MainOne Cable Company

"SubCom provided us with an innovative and flexible solution which included a lifecycle partnership through their remote NOC services and commitment to retain a maintenance vessel in our region."

Simon Fletcher CEO of Interchange

"I’m impressed with SubCom’s quick adaptation to mould flexible solutions that meet market demands and customer needs. Tailoring towards the needs of the future…that’s a key thing for me."

Nigel Bayliff CEO of Aqua Comms

"The SubCom culture fits perfectly with our developer mindset. SubCom found solutions on terms and design to accommodate our requirements and evolutions, during the system design and then during the implementation."

Remi Galasso CEO of Hawaiki

We are very pleased to be working with SubCom to extend our Norwegian sustainable data center and network infrastructure. The quality and experience they have delivered to Norway´s two cables from Andenes to Svalbard above the Arctic Circle makes a very convincing reference to us.

Peder Naerboe Chairman and Owner of Bulk Infrastructure

Recent Projects


Cable System

A 19,200 km subsea cable system connecting South East Asia, the Middle East, and Western Europe at 12 locations from Singapore to France.

Full Story


Cable Systems

The India-Asia-Xpress (IAX) system connects India eastbound to Singapore and beyond, while the India-Europe-Xpress (IEX) system connects India westbound to the Middle East and Europe.

Full Story


Cable System

SubCom's 18kV technology will enable the longest cable in the world capable of running entirely from a single power source.

Full Story

South Pacific Subsea Cable (SPSC)


A six fiber pair system able to carry 22Tbps per fiber pair for a total system capacity of 132Tbps.

Full Story


Cable System

A new high-speed undersea cable system connecting Iceland and Ireland.

Full Story

Grace Hopper

Cable System

Will be one of the first new cables to connect the U.S. and U.K. since 2003.

Full Story

Oman Australia Cable


An international subsea cable system that will directly connect Muscat, Oman to Perth, Australia.

Full Story

Recent News

5 June 2024
SubCom and Telecom Egypt Complete IEX Cable Landings in Egypt

Full Story

23 May 2024
Improving Connectivity and Accelerating Economic Growth Across Africa with New Investments

Google Cloud Blog

29 April 2024
Orange announces the landing of the SEA-ME-WE-6 submarine cable on its infrastructure in Marseille

Orange Newsroom

25 September 2023
Meet Nuvem, a Cable to Connect Portugal, Bermuda, and the U.S.

Google Cloud Blog

Read More News Here

Contact Us



(+1) 866 892 6611