| ‘4 in da Morning’ Recordings | Original Production | | Montréal , Québec , Canada | | | |
| [walnut + locust] | | | Montréal , Québec , Canada | 1999 | | |
| 1Lov Records | Original Production | | Laval, Québec , Canada | 2001-10-26 | 2004-05-07 | |
| 2xHD | Reissue Production | | Montréal , Québec , Canada | | | |
| 3rd Wave Collective | Original Production | | Montréal , Québec , Canada | | [unknown] | |
| 4ᵉ Régiment | | | Sorel, Sorel‐Tracy, Québec , Canada | 2008-04-25 | | |
| 1001Moments (Dave Quessy) | Imprint | | Gatineau, Québec , Canada | 2009-12-01 | | |
| 2112 Records | Original Production | | Montréal , Québec , Canada | | | |
| 9174 5018 Québec inc. | Publisher | | Le Plateau-Mont-Royal, Montréal , Québec , Canada | 2000-05-18 | | |
| À l’Infini Communications | Original Production | | Trois-Rivières , Québec , Canada | 1998 | | |
| A Magical Substance | Original Production | | Montréal , Québec , Canada | 2004 | | |
| A World Divided | | | Montréal , Québec , Canada | | | |
| A.D.G. Productions | Publisher | | Québec , Québec , Canada | | | |
| A440 Entertainment | Original Production | | Montréal , Québec , Canada | | | |
| Abridged Pause Productions | Production | | Montréal , Québec , Canada | 2008-02 | | 5 |
| Abridged Pause Publishing | Publisher | | Montréal , Québec , Canada | 2008-02 | | 5 |
| Abridged Pause Recordings | Original Production | LC 094513 | Montréal , Québec , Canada | 2008-02 | | 5 |
| Abuzive Muzik Productions | Imprint | | Québec , Québec , Canada | 2005-10-24 | | |
| actuellecd | | | Montréal , Québec , Canada | | | |
| Ad Litteram | | | Montréal , Québec , Canada | 1998-09-25 | | |
| Adanac | Original Production | | Montréal , Québec , Canada | | [unknown] | |
| ADISQ | | | Montréal , Québec , Canada | 1977-12-07 | | |
| Agence Ranch | Holding | | Montréal , Québec , Canada | | | |
| Airedale | | | Montréal , Québec , Canada | 1975 | | |
| Alchemists Pact Records | | | Montréal , Québec , Canada | | | |
| Alexandre-Alexander (Alexander Press) | Publisher | | Montréal , Québec , Canada | 1996-02-22 | | |
| Alice Musik | Original Production | | Montréal , Québec , Canada | | | |
| Alien8 Recordings | Original Production | | Montréal , Québec , Canada | 1996-07 | 2012-07 | |
| Alliance Productions Records Inc | Production | | Montréal , Québec , Canada | 2022-01-01 | | |
| Alta Musique | Distributor | | Saint-Léonard, Montréal , Québec , Canada | | | |
| Altitude Records | | | Québec , Canada | | | |
| Amaryllis | Original Production | | Québec , Canada | | | |
| Amateur Records | Original Production | | Saint-Hubert, Longueuil, Québec , Canada | 2008 | 2012-07 | |
| Ambiances Ambiguës | | | Montréal , Québec , Canada | | | |
| Ambiances Magnétiques | Original Production | | Montréal , Québec , Canada | 1984 | | |
| Amérylis | | | Montréal , Québec , Canada | 1978-03-06 | 1998-05-08 | |
| AMI Records | Original Production | | Québec , Canada | | [unknown] | |
| Amplitude | | | Montréal , Québec , Canada | | | |
| Amusic | Production | | Vaudreuil-Soulanges Regional County Municipality, Québec , Canada | 2014 | | |
| Analekta | Production | LC 026657 | Montréal , Québec , Canada | 1988 | | |
| Analekta Fleurs de Lys | Imprint | | Montréal , Québec , Canada | 1995 | | |
| Analogue Ind. Mtl. | | | Montréal , Québec , Canada | | | |
| Analogue Industries | | | Montréal , Québec , Canada | | | |
| Angelica Bye Bye | | | Richelieu, Québec , Canada | 2011-11-23 | | |
| Apaloza | Distributor | | Québec , Canada | | | |
| Apatride Records | Original Production | | Montréal , Québec , Canada | 2001-01-08 | 2003-09-19 | |
| Apegenine Recordings | Original Production | | Montréal , Québec , Canada | 2003-01-01 | | |
| Aperitif de la Mort | | | Montréal , Québec , Canada | | | |
| Archambault | | | Montréal , Québec , Canada | 1999 | | |
| Archéologie Sonore | Reissue Production | | Québec , Canada | | | |
| Archive Officielle | Production | | Montréal , Québec , Canada | | | |
| Arpège Musique | | | Québec , Canada | 1992 | 1996-11-22 | |
| ARRA-montréal | Original Production | | Montréal , Québec , Canada | | | |
| art | Production | | Québec , Canada | | | |
| Art Com Musik Inc. | Publisher | | Montréal , Québec , Canada | | | |
| Art Not Love Records | | | Montréal , Québec , Canada | | | |
| Artic Records | | | Québec , Canada | 1988 | | |
| Artifice | | | Notre-Dame-de-Grâce, Montréal , Québec , Canada | 2017-04-17 | | |
| Artiste Records | | | Rosemère, Québec , Canada | | | |
| Artisti | Rights Society | | Mile End, Montréal , Québec , Canada | 1997-06-10 | | |
| Artou | Imprint | | Gatineau, Québec , Canada | | [unknown] | |
| ARTV | Production | | Montréal , Québec , Canada | 2001-09-01 | | |
| Assemblée Productions | Imprint | | Québec , Canada | | | |
| ATMA | Publisher | | Québec , Canada | | | |
| ATMA Classique | Original Production | | Montréal , Québec , Canada | 1994 | | |
| Atmospheres | Imprint | | Montréal , Québec , Canada | | | |
| Atondo Musique | Original Production | | Montréal , Québec , Canada | 2016-08-13 | | |
| Audio Bambino | Production | | Montréal , Québec , Canada | | | |
| Audio Research Records | Original Production | | Outremont, Montréal , Québec , Canada | 1997-07 | 2007 | |
| Audiopact | Original Production | | Laval, Québec , Canada | 1993-04-16 | | |
| Auguri Records | Production | | Montréal , Québec , Canada | 2020 | | |
| Aux 33 Tours | Imprint | | Montréal , Québec , Canada | | | |
| Avalanche Productions | | | Montréal , Québec , Canada | 1994 | | |
| Avalanche Sound Publishing | Publisher | | Montréal , Québec , Canada | 1994 | | |
| Avenue Éditorial | Publisher | | Ville-Marie, Montréal , Québec , Canada | 2000-02-25 | | |
| Axion | | | Québec , Canada | | | |
| B.Influential Label | Original Production | | Gatineau, Québec , Canada | 2019-09 | | |
| B12 | Imprint | | Valcourt, Québec , Canada | 2017-11-13 | | |
| Baby Horse Records | | | Montréal , Québec , Canada | 2019 | | |
| Baldy Sound Records | | | Montréal , Québec , Canada | | | |
| Bam & Co. – Heavy | | | Sainte-Marie, Montréal , Québec , Canada | | | |
| BAM Music | | | Montréal , Québec , Canada | | | |
| Bangor Records | | | Montréal , Québec , Canada | 2005 | | |
| BBT Wreck‐Hurdz | Original Production | | Montréal , Québec , Canada | 2002-09-03 | 2016-04-21 | |
| Behave | | | Montréal , Québec , Canada | | | |
| Behaviour | Imprint | | Montréal , Québec , Canada | | | |
| Behaviour Interactive Inc. | Holding | | Montréal , Québec , Canada | 1997 | | |
| Betty Songs | Publisher | | Val-des-Lacs, Québec , Canada | 2003-05-07 | | |
| BGM Records | Production | | Montréal-Nord, Montréal , Québec , Canada | | | |
| Big Fat Truck | Original Production | | Montréal , Québec , Canada | 2006 | | |
| Big in the Garden | Original Production | | Montréal , Québec , Canada | 2018 | | |
| Big Metal Records | Production | | Montréal , Québec , Canada | | | |
| Bill Hill Productions | Production | | Le Plateau-Mont-Royal, Montréal , Québec , Canada | | | |
| Bittersweet Records | Original Production | | Montréal , Québec , Canada | 1997 | 1999 | |
| Bizness Records | Original Production | | Sainte-Thérèse, Québec , Canada | | | |
| Blue Skies Turn Black | Original Production | | La Petite-Patrie, Montréal , Québec , Canada | 1999 | | |
| Blue Temple Records | Imprint | | Montréal , Québec , Canada | 2023-02-19 | | |
| BMG Musique Québec inc. | Original Production | | Montréal , Québec , Canada | 1991-02-07 | 1999-07-02 | |
| Bockthelay Publishing Co | Publisher | | Montréal , Québec , Canada | | | |
| Bois d’pôele | Original Production | | Québec , Canada | | | |