Oceaneering International, Inc. is a subsea engineering and applied technology company based in Houston, Texas, U.S. that provides engineered services and hardware to customers who operate in marine, space, and other environments.
Oceaneering's business offerings include remotely operated vehicle (ROV) services, specialty oilfield subsea hardware, deepwater intervention and manned diving services, engineering and project management, and surveying and mapping services.
A remotely operated underwater vehicle (technically ROUV but commonly just ROV) is a tethered underwater mobile device.
Its services and products are marketed worldwide to oil and gas companies, government agencies, and firms in the aerospace, marine engineering and construction industries.
As of 2012, eighty percent of Oceaneering's income has been derived from deepwater work. It is also the world's largest operator of ROVs.
According to en.wikipedia