This list includes 49 Corporations that start with O, from “O’Reilly Automotive” to “Oyo”. It covers notable public and private companies across industries worldwide. Use it as a quick reference for researchers, investors, journalists, and curious readers.

Corporations that start with O are legally registered companies whose names begin with the letter O. Some, like O’Reilly Automotive, became household names and illustrate how one initial spans many industries.

Below you’ll find the table with Name, Industry, Headquarters, Founded, Notes, and Source.

Name: The official company name as used in filings and branding, so you can identify and search the firm quickly.

Industry: Standardized sector label that shows the company’s main business, helping you filter and compare firms by activity.

Headquarters: Country and city of the company’s primary office, so you can understand its geographic base and regulatory context.

Founded: Year the company was established, which helps you assess its longevity and historical context at a glance.

Notes: Short remarks on status, major subsidiaries, or notable facts to give you quick context without deep research.

Source: Link or citation to the data origin so you can follow up for more details or official records.

Corporations that start with O

Descriptions