It delivers software and cloud solutions that provide foundational technologies for application development and identity and access management (IAM).

Fremantle was WSO2's chief technology officer (CTO) from 2008-2020,[10][11] and was named one of InfoWorld's Top 25 CTOs his first year in the role.

[17] In March 2015, WSO2.Telco was launched in partnership with Malaysian telecommunications company Axiata,[18] which held a majority stake in the venture.

In 2010, Godel Technologies invested in WSO2 for an unspecified amount,[23] and in 2012 the company raised a third round of $10 million.

[27][28] In November 2021, WSO2 obtained $90 million in financing from Goldman Sachs Asset Management Private Credit.

[32][33] WSO2 first introduced Ballerina, an open-source, general-purpose concurrent and strongly typed programming language with both textual and graphical syntaxes, optimized for integration in 2017.

[38] In February 2009, WSO2 introduced the WSO2 Carbon componentized framework based on the Open Source Gateway Initiative (OSGi), designed to serve as the basis for all WSO2 software products.

[42] As of Q1 2023, products include: As of 2023, WSO2 has offices in: Mountain View, California; Austin, Texas; London, UK; São Paulo, Brazil; Sydney, Australia; Munich, Germany; Dubai, United Arab Emirates; Mumbai, India; Singapore, and Colombo, Sri Lanka.