- Alexander Marks
- Alexander Marquardt
- Alexander Masotti
- Alexander Matzner
- Alexander May
- Alexander McClean
- Alexander McGrath
- Alexander Mears
- Alexander Metelkin
- Alexander Mezny
- Alexander Mishenin
- Alexander Mishkin
- Alexander Montano
- Alexander Montgomery
- Alexander Moomjy
- Alexander Muires
- Alexander Nemiroff
- Alexander Nolte
- Alexander Ogura
- Alexander Olliges
- Alexander Olsen
- Alexander Open Systems Acquired By ConvergeOne Holdings
- Alexander Organ
- Alexander Ortlieb
- Alexander Ott
- Alexander Owesen
- Alexander P. Hatsis Physician P.C. Acquired By Sight Medical Doctors P
- Alexander Pagon
- Alexander Panos
- Alexander Park
- Alexander Parker
- Alexander Peterson
- Alexander Pfurr
- Alexander Pickford
- Alexander Pizale
- Alexander Popp
- Alexander Preussner
- Alexander Puthumana
- Alexander Que
- Alexander Rang
