RSM buys nonprofit specialists C Systems and Confluence Global

06 August 2021 Consulting.us 2 min. read
More news on

RSM US has acquired two US-based IT consulting firms specializing in association management systems (AMS) for nonprofits and member-based organizations: C Systems Global and Confluence Global.

As part of the deal, which is expected to close on September 1, RSM will acquire the US and Canadian operations of C Systems, with the UK division remaining an independent firm.

Founded in 2000 and based in Edison, NJ and Toronto, Canada, C Systems helps associations and nonprofits leverage the iMIS Engagement Management System, a popular AMS solution. The platform supports relationship management, content management, e-commerce, and e-marketing functions. C Systems offers services in development, mobile implementation, and hosting and support.

The firm has 26 employees, according to LinkedIn.

Confluence Global was founded in 2017 and is based in Arlington, VA. The firm supports associations and nonprofits with the adoption and management of Nimble AMS, which is built on the Salesforce platform. Confluence has nine employees, according to LinkedIn.

RSM buys nonprofit specialists C Systems and Confluence Global

RSM’s acquisition of the two firms will bolsters its nonprofit-focused technology consulting services. The national accounting and consulting firm now offers software and implementation services for iMIS, Nimble AMS, NetSuite, and Microsoft Dynamics.

“RSM powers its industry-focused strategy with leading consulting solutions to serve our clients’ needs,” said Brian Becker, consulting leader for RSM US. “The outstanding C Systems and Confluence Global teams will enhance our ability to help associations and nonprofit organizations leverage technology to meet the unique opportunities and challenges they face.”

Lee Hornstein, CEO of C Systems, will join RSM as a consulting principal, while Craig Dellorso, CEO of Confluence Global, will join as a consulting director.

“Joining RSM is a crucial next step in our firm’s growth strategy and an exciting step forward for our people and our clients,” said Hornstein.

Dellorso added, “We are thrilled to join a firm that shares our passion for the industries we serve and that is committed to helping clients bolster their success through technology.”

RSM in 2019 acquired Tate & Tryon, a DC area accounting and consulting firm focusing on nonprofit sector clients. The transaction added approximately 150 people. In 2020, the firm acquired MondayCall, a San Francisco-based provider of consulting services for Salesforce customer relationship management (CRM) software.

RSM also this year acquired the ServiceNow practice of Rego Consulting.

Based in Chicago, RSM has approximately 12,500 people across more than 80 offices nationwide.