There are hundreds of corporate operators in the Boston area but it is all who you know, which you know. You probably do not have the time to be competitive off the street for the better ones such as Liberty Mutual out of KBED (Global and 2 Falcon 900s.) I would suggest Linear air which is Caravans and Eclipse 300s out of BED or Alpha which is out of PSM flying the PC12 and soon Grob or Infinity jets out of ASH flying Hawkers. Hang out at KBED, it is pretty much THE corporate hub out of the BOS area.