Big Vision. Big Execution. Big Results

Building Strong Partnerships and Organizations









...and counting

Working with Cothran Development Strategies has been a wonderful experience. They are always accessible, professional and provide excellent results! The entire team has an unbeatable work ethic!

 Anne Adams

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


Full-Service Association Management

We provide everything to make your industry trade association successful: from membership and finances to marketing and event planning/management.


Association Select Services

Only need one or two services? We provide many different select services to meet your organizational needs.




Bringing investors together to grow and create opportunities


The Leadership of Cothran Development Strategies, Inc. 

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Somerlyn Cothran
President & CEO


580.332.4710 ext 103

Email Somerlyn

Since founding the company in 2001, Cothran has managed hundreds of national & local fundraising efforts, national & state trade associations, nonprofits & political action committees, and multiple investor partnerships. In addition to the company’s leadership in the arena of trade association management and development, CDS is also regarded as one of the top fundraising firms in the country, with clients in over 15 states. Cothran is currently the head of investor relations for the largest national women’s conservative group in the country, Independent Women’s Voice and Forum, and has served as a finance consultant to multiple statewide and federal office holders as well as two U.S. Presidential nominees. 


She was named a 2005 Rising Star in Politics by Campaigns and Elections magazine and was a co-founder of the National Association of Political Fundraisers. She is an active member in the National Association Management Company Institute, The American Society of Association Executives and is a certified administrator of the MBTI®. Locally, she is a past president and board member of the Ada City Schools Foundation, former Harold Hamm Diabetes Center board member, and serves on the Advisory Boards of the Mama T’s Homeless Shelter and TLC Therapeutic Riding Center. Because of her passion for education, in 2015 she was appointed by former OK Governor Mary Fallin to serve on the Oklahoma Partnership for School Readiness Board.


Cothran 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. 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.

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Jamie Whitefield
Senior Vice President


580.332.4710 ext 101

Email Jamie

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Ayla Rohl
Communications Coordinator

580.332.4710 ext 104
Email Ayla

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Casidy McMeans
Senior Database Manager
580.332.4710 ext 108
Email Casidy

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Janet Ranallo

Senior Project &

Association Manager

580.332.4710 ext 105

Email Janet

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Ann Cook

Senior Project &

Association Manager

580.332.4710 ext 110

Email Ann


Heather Swinney
Project Coordinator

580.332.4710 ext 109
Email Heather

Ashley Clapper
Administrative &

Membership Assistant

580.332.4710 ext 107

Email Ashley

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Hannah Pope
Assistant to the President

580.332.4710 ext 106
Email Hannah


Kacy Clark
Communications Assistant

580.332.4710 ext 112
Email Kacy


Over the phone or online

2313 N Broadway

Ada, Oklahoma 74820

580-332-4710 ex 103

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