Oceaneering International, Inc. OII

OII Company Overview

Oceaneering International, Inc. (OII) is a global provider of engineered services and products primarily serving the offshore energy industry, with expanding exposure to defense, aerospace, and renewable energy markets. The company specializes in subsea engineering, remotely operated vehicle (ROV) services, and life-of-field solutions that support offshore oil and gas exploration, production, and maintenance activities. Its core offerings include subsea robotics, intervention services, installation, and integrity management, positioning the company as a critical service partner for complex offshore operations.

Founded in 1964, Oceaneering evolved from a Gulf of Mexico–focused diving contractor into a diversified subsea technology and engineering services company with global reach. Over decades, the company expanded through internal technology development and targeted acquisitions, shifting its strategic focus toward higher-margin, technology-driven services. Its long operating history, proprietary subsea technologies, and integrated service model are considered key competitive advantages in capital-intensive offshore markets.