SubCom in New Hampshire quietly makes 58,000 km of subsea cable a year

SubCom's Newington plant produces about 58,000 km of fiber-optic cable annually, with an expansion targeting 77,000 km by the end of 2026 and a longer-term goal near 100,000 km. The company holds 40% of the global market by deployed cable length and passed 1 million km in May 2025.

• SubCom makes ~58,000 km of cable a year, aiming for 77,000 km by end-2026
• The company passed 1 million km of deployed cable in May 2025
• SubCom's share of the global market by cable length is 40%
• Cerberus set up a $2.3 billion single-asset vehicle for SubCom in April 2026