Oracle provides database technology and enterprise resource planning, or ERP, software to enterprises around the world. Founded in 1977, Oracle pioneered the first commercial SQL-based relational database management system. Today, Oracle has 430,000 customers in 175 countries, supported by its base of 136,000 employees.

Intuit is a provider of small-business accounting software (QuickBooks), personal tax solutions (TurboTax), and professional tax offerings (Lacerte). Founded in the mid-1980s, Intuit controls the majority of U.S. market share for small-business accounting and DIY tax-filing software.

Envestnet provides wealth-management technology and solutions to registered investment advisors, banks, broker/dealers, and other firms. Its Tamarac platform provides trading, rebalancing, portfolio accounting, performance reporting, and client relationship management software to high-end RIAs. Envestnet’s portfolio management consultants provides research services and consulting services to assist advisors, including vetted third-party managed account products. In November 2015, Envestnet acquired Yodlee, a provider of data aggregation.

Microsoft is the world's largest independent software developer. The company was founded on the MS Windows operating system and MS Office business applications suite for PCs. As it has grown, Microsoft has expanded into enterprise software with Windows Server, SQL Server, Dynamics CRM, SharePoint, Azure and Lync; hardware with the Xbox gaming/media platform and the Surface tablet; and online services through MSN and Bing. Microsoft acquired Skype, the internet VoIP communications service, in October 2011. The company acquired Nokia's Devices and Services Business in April 2014. More than 50% of revenue is generated outside the U.S.