Trained by his mother and the League of Assassins in the way of controlling a company with an iron grip. Even as a young boy he knows that in business there are wars and even in war there are assassins. Damian is involved with the Wayne Enterprises' board members. He even intimidated the board members by tracking down financial irregularities within the Wayne Enterprises' accounts.
Hand-to-Hand Combat (Advanced)
Trained by the League of Assassins, Talia al Ghul and Batman; Damian may not be physically tough but he knows how to control his weight and has stated that he knows, "one thousand ways to kill a man." Damian's training has made him a formidable hand-to-hand combatant able to defeat or hold his own against multiple opponents, armed opponents or skilled hand-to-hand combatants.
Trained by the League of Assassins, Damian has stated he knows just as many martial arts as Batman and can use them more effectively. This may be a largely overstated comment but one shouldn't ask for verification.
Damian can imitate anyone's voice and speech patterns perfectly as he imitated Tim Drake's voice in order to gain access to a chamber only Tim was allowed into.
Damian was able to sneak into Gotham City and furthermore into the Batcave virtually undetected until he felt necessary. Of all the Robins, Damian may be the one that is the most silent.
Damian assaulted both Tim Drake and Bruce Wayne on separate occasions with his sword, apparently the same sword used by Ra's al Ghul. Although Damian no longer uses his sword he may be unmatched with one if armed correctly.
Damian is trained by the League of Assassins in shuriken throwing and further trained by Batman in Batarang throwing.