The software industry is a highly competitive market with many top companies vying for market share. Here are some of the top software companies in the world:

1. Microsoft: Founded in 1975, Microsoft is a multinational technology company known for its Windows operating system, Office productivity suite, and cloud services.

2. Oracle: Founded in 1977, Oracle is a multinational computer technology corporation specializing in database software, cloud engineered systems, and enterprise software products.

3. IBM: Founded in 1911, IBM is a multinational technology company known for its mainframe and cloud computing systems, as well as software such as Watson AI and blockchain.

4. SAP: Founded in 1972, SAP is a multinational software corporation specializing in enterprise software to manage business operations and customer relations.

5. Salesforce: Founded in 1999, Salesforce is a cloud-based software company that provides customer relationship management (CRM) solutions for businesses of all sizes.

6. Adobe: Founded in 1982, Adobe is a multinational software company that provides a range of multimedia and creativity software, including Photoshop, Illustrator, and InDesign.

7. Google: Founded in 1998, Google is a multinational technology company known for its search engine, mobile operating system (Android), and suite of productivity and collaboration tools.

8. Amazon Web Services (AWS): A subsidiary of Amazon, AWS is a cloud computing platform that provides a range of services, including compute, storage, and databases, to businesses of all sizes.

9. Cisco: Founded in 1984, Cisco is a multinational technology company that provides networking hardware, software, and telecommunications equipment.

10. Dell Technologies: Founded in 1984, Dell Technologies is a multinational technology company that provides a range of products and services, including personal computers, servers, storage devices, and software.