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"It sits on the sea bed, completely invisible when you are on the beach or the coast. As waves go overhead, membranes move up and down pushing air through the device, through a turbine that generates electricity," said Madeline Cowley of Bombora.

Bombora moved its operations from Australia to Wales in 2017 to and is now in the final stages of its £17m project to harness wave energy.

Any Web site that ends in “.au,” “.melbourne” or “.sydney” passes through Bombora’s registry system, for instance.

Neustar, the Sterling-based company best known for operating the system that enables U.S. consumers to keep their numbers when they switch cellphones, on Thursday bought Australian information-technology company Bombora for $86.9 million.

Bombora also offers a suite of domain name registry services for “.ae” sites based in the United Arab Emirates, “.om” sites based in Oman and “.qa” sites based in Qatar.