Craig Addington
(216) 241-7333 ext 7722 | email
Chief Executive Officer/Principal
Chris Johnson
(216) 241-7333 ext 7736 | email
Chief Development Officer/Principal
Susan Orenga
(216) 241-7333 ext 7745 | email
Chief Operating Officer/Principal
Melissa Allay
(216) 241-7333 ext 7739 | email
Chief Financial Officer/Principal

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Thomas Associates Inc


1300 Sumner Ave, Cleveland, OH 44115 United States

About Us

Founded in 1913, Thomas Associates is one of the longest-running success stories of all association management companies in the world. Thomas Associates provides association clients with intelligent and respectful counsel, building long-term relationships with the leadership of each association to further the strategic interests of the industry. We do this by developing and rewarding a team of professionals who deliver these services better than any other association management firm in North America.


Thomas Associates manages day to day operations for trade associations. This includes managing meetings and conferences, providing accounting and IT services, managing projects and communicating with members. We have extensive expertise and dedicated staff who specialize in statistics programs, certification programs, and engineering services. We also have significant experience with marketing solutions, safety programs, government relations, newsletters and publications, websites, and social media programs for the associations we manage.