The Blackstone Group L.P. (NYSE:BX) and The Carlyle Group L.P. (NasdaqGS:CG) are interested to acquire Pitney Bowes Inc. (NYSE:PBI). It is reported that, Pitney has hired Lazard Ltd (NYSE:LAZ) as its financial advisor and Cravath, Swaine & Moore LLP as its legal advisor to explore strategic alternatives.