| A&L |
| AB |
| Abarth |
| ABB |
| Abbey |
| Abeko |
| Abelco |
| ABG |
| ABI |
| ABL |
| ABS |
| ABT |
| Abu |
| Abus |
| Access |
| Acco |
| Accord |
| Accormat |
| Accurate Fabricating |
| Ace |
| Acerbi |
| Achleitner |
| ACJ |
| Ackermann |
| Ackermann-Fruehauf |
| ACM |
| Acmar |
| Acometis |
| ACRO |
| ACS |
| Actech |
| Actisol |
| Actm |
| Adam |
| Adams |
| ADCO |
| Addco |
| Adige |
| Adler |
| Adria |
| Advance |
| Aebi |
| AEG |
| Aeolus |
| Aerolift |
| Aeromeh |
| Aerway |
| Aerzen |
| AFA |
| A-Faber |
| AFM |
| Afrit |
| Ag Attach |
| Ag Shield |
| Agados |
| AG-BAG |
| Agbo |
| Ag-Chem |
| Agco |
| Agco Allis |
| Agerskov |
| AGM |
| Agma |
| Agram |
| Agreba |
| Agrex |
| Agri |
| Agria |
| Agric |
| Agri-Fab |
| Agrifac |
| Agrifull |
| Agrignia |
| Agrimac |
| Agrimaster |
| Agrimat |
| Agrimax |
| Agrip |
| Agrisem |
| Agriweld |
| Agro |
|
| Agrocat |
| Agrocom |
| Agrodan |
| Agro-Factory |
| AgroLand |
| Agrolux |
| Agromasar |
| Agro-Masz |
| Agromatic |
| Agromec |
| Agromehanika |
| Agromet |
| Agrometer |
| Agronic |
| Agrosat |
| Agrostroj |
| Agrow |
| Agro-Wikt |
| Agrozet |
| AGT |
| AHA |
| Ahlmann |
| Ahlstrom |
| AHP |
| Ahwi |
| Aichi |
| Airco |
| Airman |
| Airo |
| Airplaco |
| Airpress |
| Airquick |
| Aisle-Master |
| Aixam |
| AJK |
| Akpil |
| Akron |
| AKSA |
| Aktiv |
| Akzo Nobel |
| Alamo |
| Alasco |
| Ala-talkkari |
| Alba |
| Albach |
| Alcoa |
| Alfa |
| Alfa Laval |
| Alimak |
| Alitec |
| Alitrak |
| Al-jon |
| Al-Ko |
| Alkom |
| Alkota |
| Allatt |
| Allen |
| Allett |
| Alliance |
| Allianz-Johnston |
| Allie |
| Allied |
| Alligator |
| Allis |
| Allis-Chalmers |
| Allison |
| Allman |
| Allmand |
| Allmand Bros |
| Alloway |
| Alloy |
| Allround |
| Allu |
| Allvan |
| Allweiler |
| Almac |
| Alpego |
| Alpina |
| Alstor |
| Alstrong |
| Alta-Fab |
|
| Altairac |
| Altec |
| Alto |
| Altrex |
| Altro |
| Altura |
| Alubo |
| Alucar |
| Alup |
| Al-vac |
| ALÖ |
| AM |
| AM General |
| AMA |
| Amac |
| Amadas |
| Amazone |
| Amco |
| Amco Veba |
| American |
| American Augers |
| American LaFrance |
| American Pulverizer |
| AMI |
| Amida |
| Amkodor |
| Ammann |
| Ammann-Yanmar |
| Ampac |
| AMT |
| AMV |
| Anaconda |
| Anderson |
| Andover |
| Andrews |
| Angeloni |
| Annaburger |
| Annaite |
| Annovi Reverberi |
| Ansaldo |
| Antec |
| Antha |
| Antonelli |
| Antonio Carraro |
| Antti |
| Antti-Sampo |
| AP |
| AP Machinebouw |
| Apache |
| Applied |
| APV |
| Aquila |
| ARB |
| Arbocut |
| ArcGen |
| Arcomet |
| Arcotherm |
| Arctic Cat |
| Arctic Shelter |
| Arcus |
| Arcusin |
| Ardco |
| Arden |
| Ares |
| Argo |
| Ariel |
| Ariens |
| Arjes |
| Arm |
| Armanni |
| ArmaTrac |
| Armor |
| Armour |
| Armstrong Ag |
| Arnes |
| AR-PE |
| Arrow |
| Arrowhead |
| Arrow-Master |
| Artex |
| Artison |
|
| Artsway |
| ASAHIIGEN |
| Asa-Lift |
| Asca |
| Asco |
| Asea |
| ASG |
| Ashita |
| Ashland |
| Ashok Leyland |
| AsiaKing |
| Asiawing |
| Aska |
| As-Motor |
| ASP |
| Aspen |
| Asphalt Zipper |
| Assentoft |
| Astec |
| Astec Underground |
| Astra |
| ASV |
| AT |
| ATC |
| Atco |
| Atcomex |
| Ateco |
| Athens |
| Athey |
| ATI |
| Atib |
| Atila |
| Atlas |
| Atlas Copco |
| Atlas Copco Wagner |
| Atlet |
| ATM |
| Atmos |
| ATN |
| Atom |
| A-Trans |
| ATS |
| Attack |
| Aubema |
| Audi |
| Audureau |
| Auger Torque |
| Auramo |
| Auramo Bolzoni |
| Aurepa |
| Ausa |
| Auspactor |
| Austin |
| Austin-Western |
| Auto Crane |
| Auto Wrap |
| Autocar |
| Autocon |
| AutoMäkinen |
| Autosan |
| Auwärter |
| Ava |
| AWA |
| Avant |
| A-Ward |
| Aveling Barford |
| Awemak |
| Aweta |
| Avia |
| AVK |
| AVR |
| Awrol |
| Axeco |
| Axel |
| Ayats |
| Aza |
| Aztec |
|