VNET vs OII Comparison

VNET started as AsiaCloud in 1999 and moved into the data center business, opening its first self-developed data center in 2010. The firm listed (as 21Vianet) on the Nasdaq in April 2011, subsequently changing its name to VNET Group in 2021. It originally focused on providing data center services such as colocation and cloud services to retail clients in China, but added hyperscale customers in 2019 and now counts large Chinese hyperscalers such as Alibaba Cloud, Tencent Cloud, and Huawei Cloud as customers. At the end of September 2025, it had 52,288 retail cabinets, with the majority in Beijing, Shanghai, and the Greater Bay area. It also had 783 MW of wholesale capacity in service, with a further 306 MW under construction and a further 705 MW held for future development.

Oceaneering International Inc is a provider of engineered services and products and robotic solutions to the offshore energy, defense, aerospace, manufacturing, and entertainment industries. A majority of its products are produced for the offshore oil and gas market. The company's business segments are Integrity Management and Digital Solutions, Subsea Robotics, Manufactured Products, Offshore Projects Group, and Aerospace and Defense Technologies. Maximum revenue is generated from its Subsea Robotics segment, which provides remotely operated vehicles (ROVs) for drill support and vessel-based services, underwater surveys, tooling, and other activities. Geographically, the company derives its key revenue from the United States, followed by Africa, Norway, Brazil, and other regions.