Simms is CEO, Founder and President of CMDI and Odell, Simms & Associates. Simms serves as a Board Member at Audience Partners. Simms has designed and developed information management systems supporting complex marketing and customer relationship management (CRM) activities of the Republican National Committee, Network Solutions, Citizens for a Sound Economy, Metrocall Paging and numerous for-profit corporations and not-for-profit organizations. Simms is a twenty five-year veteran of direct marketing communication and fundraising. He is also president and owner of Odell, Simms & Associates (OSA), a marketing company engaged in lead generation, fundraising and corporate sponsorship and direct marketing for many important institutions in the US, Canada, UK, Germany, China and New Zealand.