MSI Global Alliance - MSI is a leading global alliance of independent professional service firms including accountants, lawyers, certified auditors, tax advisors, and offshore and specialist service providers serving entrepreneurial businesses. Concepcion, Sexton, & Martinez is a member of the MSI global alliance.
Greate miami Chamber of Commerce
 GMCC - The Greater Miami Chamber of Commerce is one of the largest Chambers of Commerce in the entire United States. Attorneys in the firm are active and leaders in this organization. Carlos F. Concepcion is past Chair of the Chamber's "Americas' Linkage" committee which organizes international business linkage and exchanges throughout the Americas.
Florida International Bankers Association
 The Florida International Bankers Association - FIBA is a non-profit corporation founded in 1979. It is composed of 72 domestic and foreign financial institutions, from 24 countries, operating in the state of Florida, as well as a limited number of supporting members whose activities are closely related to international banking. Carlos F. Concepcion is a past member of FIBA's Executive Committee and past Chair of FIBA’s International Fraud Prevention Committee