Association and Corporate Management Tailored to YOU









...and counting

Working with CDS has been a wonderful experience. They provide excellent service with great attention to detail. They are super responsive, professional and overall great to work with!

 Anne Adams

CPA, Chapman Foundations Management, LLC: Program Chair, Oklahoma Healthcare Financial Management Association

Full-Service Association Management

We provide everything to make your association successful from membership and finances to communication and management.



Let us help your company fill in administrative "gaps" while improving performance and efficiency.

Select Association Services

Need an individual service? We provide many different select services to meet your specific needs.


The people behind Cothran Development

Somerlyn Cothran
President & CEO


580.332.4710 ext 103

Email Somerlyn

Since founding the company in 2001, Cothran has developed and managed hundreds of national and local fundraising efforts, national trade associations, nonprofits, and political action committees. In addition to her leadership in the arena of corporate trade association management and development, CDS is regarded as one of the top fundraising firms in the country with clients in over 20 states. On the political front, Cothran was a leader in national fundraising for the Mitt Romney for President/Victory Campaign and set record fundraising goals in Oklahoma and throughout the energy sector. She was also involved in fundraising for the Giuliani Presidential Campaign as well as Trump Victory and the Presidential Inauguration Committee. She was named a 2005 Rising Star in Politics by Campaigns and Elections magazine and was a co-founder and is the current President of the National Association of Political Fundraisers. She is an active member of the Association Management Company Institute, The American Society of Association Executives and is a certified administrator of the MBTI®. She is a regular guest speaker for state and national organizations on the topics of vision, keys to success, and women in business. Locally, she is the immediate past president and a board member of the Ada City Schools Foundation and serves on the boards of the Harold Hamm Diabetes Center and Mama T's Homeless Shelter. She was a member of Leadership Oklahoma Class XVII, named an “Oklahoma Achiever Under 40” in 2012 and was a 2014 and 2015 “Oklahoma Woman of the Year" finalist. Most recently, she was appointed by OK Governor Mary Fallin to the Oklahoma Partnership for School Readiness Board. She earned her bachelor’s degree in communication from the University of Tulsa and a master’s degree in human relations and organizational development from the University of Oklahoma.

Jamie Whitefield
Senior Vice President


580.332.4710 ext 101

Email Jamie

Naomi Lemon
Senior Vice President of Communications

580.332.4710 ext 104

Email Naomi

Casidy McMeans

Senior Database Manager



580.332.4710 ext 108

Email Casidy


Janet Ranallo

Senior Project &

Association Manager

580.332.4710 ext 105

Email Janet

Ann Cook

Senior Project &

Association Manager

580.332.4710 ext 110

Email Ann

Shyanna Sloan

Project Manager


580.332.4710 ext 109

Email Shyanna


Ashley Clapper
Administrative &

Membership Assistant

580.332.4710 ext 107

Email Ashley

Hannah Pope
Assistant to the President

580.332.4710 ext 106

Email Hannah

Brooke Bishop

Fundraising Assistant

580.332.4710 ext 102

Email Brooke


Over the phone or online

2313 N Broadway

Ada, Oklahoma 74820

580-332-4710 ex 104

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 2313 N Broadway Ada, Oklahoma 74820

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