- Arnold & Porter LLP
- Arnold and Associates Acquired By HUB International
- Arnold Bloch Leibler
- Arnold Brown
- Arnold Bussemaker
- Arnold Clark Automobiles Acquisitions
- Arnold Engineering Acquired By Noranco
- Arnold Freedman
- Arnold Hoffman
- Arnold Holle
- Arnold Jacobs
- Arnold Janicker
- Arnold Jäger Holding Acquisitions
- Arnold Magnetic Technologies Acquired By Compass Diversified
- Arnold Palmer Golf Management Acquisitions
- Arnold Siemer
- Arnold Transportation Services Acquisitions
- Arnold Travel Technology Pty Acquired By Serko
- Arnold Vos
- Arnold Whitman
- Arnoldo Mondadori Editore Acquisitions
- Arnon Samburski
- Arnott Acquired By Calera Capital
- Arnott’s Biscuits Limited Acquired By KKR
- Arnoud Krijt
- Arnout Stroeve
- Arnsco Acquired By Optionis Group
- Arnstein & Co.
- Arntzen de Besche Advokatfirma AS
- Arobs Transilvania Software S.A. Acquisitions
- Aroga Technologies Acquisitions
- Arohi Software Solutions Pvt. Acquisitions
- Aroma & Gusto Acquired By Julius Meinl Industrieholding
- Aroma SA Acquired By Frutarom Industries
- Aroma Sharma
- Aroma Snacks KG Acquired By Tyrrells Potato Crisps
- Aromaster Gida Katki Maddeleri Tic. Sti. Acquired By Brenntag
- Aromatic Ingredients Acquired By Phoenix Aromas & Essential Oils
- Aromco Acquired By Frutarom Industries
- Aromor Flavors & Fragrances Acquired By International Flavors & Fragrances
