- Allen C. Ewing & Co.
- Allen Carey
- Allen Chu
- Allen Cinzori
- Allen Concrete Acquired By SigmaRoc
- Allen Crosswell
- Allen Darnell
- Allen Edmonds Acquired By Caleres
- Allen Estes
- Allen Feng
- Allen Finkelstein
- Allen Garson
- Allen Gears Acquired By GE Oil & Gas
- Allen Greenberg
- Allen Grogan
- Allen Handlan
- Allen Hicks
- Allen Insurance Group Acquired By Relation Insurance Services
- Allen International Acquired By Accenture
- Allen Israel
- Allen Kim
- Allen Kogan
- Allen Laufenberg
- Allen Lefkowitz
- Allen Li
- Allen Lo
- Allen Media Broadcasting Acquisitions
- Allen Meisels
- Allen Moseley
- Allen Myland Acquired By Park Place Technologies
- Allen Nazeri
- Allen Packing Acquired By B2B Industrial Packaging
- Allen Palles
- Allen Screen Printing Acquired By Identity Group
- Allen Service Acquired By Burton Plumbing Services
- Allen Simon
- Allen Stott
- Allen Tate Acquisitions
- Allen Technologies Acquired By Periscope Equity
- Allen Thorpe
