Buzzfeed and graphic artist Kim Albrecht have collaborated to create a truly massive interactive map of the complicated network of Donald Trump's investments and associates. It traces the connections of 1500 people and organizations and a click anywhere lets you zoom in and focus on any particular node or branch. You can also do a text search for names to find particular segments of the network that interest you.
Here is the link for the overview, which is daunting (where to even begin to drill down?!?): Network overview
Here's a direct link to the primary node — Donald Trump himself. It shows a staggering number of LLCs and shell companies as well as the nefarious cast of corrupt and incompetent characters associated with him: Donald Trump's connections.
Since this administration immediately embarked on a brazen course of conflicts of interest and personal enrichment by means of the presidency, the map will undoubtedly be a vital tool for understanding as the inevitable scandals come to light. You might want to bookmark the page for future reference.