Those fireworks that just gave you a near heart attack, scared your dog or woke up your child are courtesy of Dalzell Productions according to Newyorkology:
Tonight, a 10-minute fireworks show is scheduled for the East River at 9 p.m. The Coast Guard has issued a permit to Dalzell Productions (but there is no further public information about why they’re sponsoring the show.) The fireworks barge will be south of the Brooklyn Bridge, near Manhattan’s Pier 16.