WSG members are independent law, accounting, and investment banking firms.

According to the organization's website as of 2021[update], WSG was formed in 2002 as a multidisciplinary network comprising over 120 member firms in 150 jurisdictions and 23,000 professionals.

[1] WSG is a global professional services network of independent firms that represent their own individual clients.

[2] WSG is governed by a board of directors consisting of representatives from each region and from the various services that the members provide.

All WSG members are recognized as leading independent firms in their region by the top ranking publications and awards, including[3] Chambers and Partners,[4] Super Lawyers,[5] Best Lawyers,[6] Legal 500,[7] International Financial Law Review 1000,[8] and other rating organizations.