The R DI MARCO, LLC is internationally active and engaged in the management of a diversified portfolio of international and domestic companies and financial market instruments. Its business includes direct investments in international companies, stocks, investment funds, currencies and precious metals.

In 2002, Robert Di Marco, together with his partners  founded the Knight Consulting Group LLC in Palm Beach, Florida, as a consulting company which was later renamed R DIMARCO, LLC in 2007 and also operated under the DBA of Global Services and Advisory until 2010 when Global Services & Advisory was formed under its own corporate charter. Robert Di Marco is the active Chairman and CEO of GSA International Group, LTD which is the parent international holding entity to the GSA and  Arcis of companies.

Robert Di Marco, in 2010 founded The Di Marco Family Foundation, which has been formed to engage in non-profit work in education, culture, social welfare and health care all over the world.