A
| A Beautiful Lie | Metalcore/Post Hardcore | Пазарджик | 2012 |
| A L I | Аlternative Rock | София | 2019 |
| A Prose | Alternative Rock | Димитровград | 2001 |
| A-Moral | Punk Rock | Варна | 2006 |
| A.B.M. | Death Metal | Стара Загора | 1994 |
| A.X.E. | Heavy Metal | Монтана | 1992 |
| A15 | Alternative Rock | Варна | 2012 |
| Abaddon | Death Metal | Шумен | 1999 |
| aBasement | Punk/Hardcore | Ловеч | 2001 |
| Abductor | Thrash/Death Metal | Варна/София | 2013 |
| Ablepsia | Symphonic Black Metal | Варна | 2003 |
| Aboardage | Thrash/Death Metal | Свищов | 1988 |
| Abrazura | Thrash/Death Metal | София | 1988 |
| Abritus | Hard Rock/AOR | Разград | 1993 |
| Abstraction | Progressive Metal | Златица | 2009 |
| Abysmatic | Electronic/Industrial | София | 2009 |
| AciDust | Neo Metal | Пловдив | 2000 |
| Act Of Grotesque | Death Metal | Бургас | 2001 |
| Addicted To | Hard Rock | Варна | 2011 |
| Adibas | Punk Rock/Post Punk | София | 2007 |
| ADIM | Hardcore | София | 2005 |
| Adrenaline Overload | Crossover Metal | София | 2014 |
| Adult Crush | Hardcore | София | 2021 |
| Adultery | Black Metal | Варна | 2004 |
| Aegonia | Folk Gothic Metal | София | 2011 |
| Aeonless | Atmospheric Black/Doom Metal | Сандански/Вантаа (Финландия) | 2013 |
| Affection | Alternative Rock | Казанлък | 2005 |
| After Midnight | Alternative Rock | Асеновград | 2013 |
| Aftershock | Hard Rock | Перник | 2012 |
| Aftertaste | Pop Punk/Pop Rock | София | 2008 |
| Agartha | Black Metal | Бургас | 1995 |
| Agarthia | Heavy Metal | София | 2019 |
| Agastopia | Grundge/Alternative Rock | Габрово/София | 2021 |
| Agonic Faint | Death Metal | София | 2004 |
| Agony | Thrash Metal | Плевен | 1990 |
| Agressor | Thrash/Death Metal | София | 1989 |
| Aguares | Black Metal | с.Свидня | 2009 |
| Airbag | Synth Pop/New Wave | Казанлък/София | 2005 |
| AISOSN | Alternative/Progressive Rock | София | 2022 |
| Aita Pea Pea | Nu Metal | Варна | 1999 |
| Ajabez | Classic Rock | София | 2005 |
| Alcoholical Skills | Street Punk | Варна | 2002 |
| AlexUnder | Emocore/Post Hardcore | Асеновград | 2005 |
| Alien Industry | Industrial Metal | София | 1994 |
| All Of Us | Rapcore/Crossover | София | 2002 |
| Allegorist | Symphonic/Gothic Metal | София | 2012 |
| Alley Sin | Glam Rock | София | 2008 |
| Almaren | Acoustic Folk Rock, Classic Rock/New Wave | Бургас | 1994 |
| Alternate | Thrash Metal | Шумен | 2017 |
| Amadeus | Glam Rock | Димитровград | 1993 |
| Amber | Hard Rock | Пазарджик | 2008 |
| Ameliorate | Heavy/Thrash Metal | София | 2022 |
| Amor e Morte | Symphonic Black Metal | Дупница | 2004 |
| Amoric | Alternative Rock | Дъблин (Ейре) | 2007 |
| Anal Dissected Angel | Death Metal/Grindcore | София | 2000 |
| Anal Macabre | Grindcore/Noisel | Перник | 1994 |
| Analgin | Heavy Metal/Hard Rock | София | 1980 |
| Anamnasia | Crossover | Кърджали | 1996 |
| Anastasis | Death/Thrash Metal | София | 2004 |
| Ancoria | Hard Rock | София | 2012 |
| Andromeda | Heavy Metal | Гоце Делчев | 2011 |
| Anekdot | Thrash Metal | Русе | 2012 |
| Angel Disorder | Metalcore | София | 2011 |
| Angel Sky | Alternative Rock | София | 2006 |
| Angels of Pain | Power Metal | Пловдив | 2008 |
| Angercure | Gothic Metal | Плевен | 2009 |
| Angerpoint | Thrash Metal/Metalcore | Хасково | 2002 |
| Ani Lo. Projekt | Symphonic Power Metal | София/Мю́нстер (Германия) | 2002 |
| Anima | Death Metal | Пловдив | 2022 |
| Anna Bo | Synthpop/Gothic Rock | София | 1997 |
| Anonyme | Alternative Metal | София | 2016 |
| Another Day | Hardcore | Варна | 1999 |
| Anti Future | Street Punk | София | 2013 |
| Antidot | Heavy Metal/Groove Metal | Троян | 2010 |
| AntiSapiens | New Wave | Варна | 1991 |
| Anwakh | Industrial | Варна | 2004 |
| Aphasia | Progressive Metal | Смолян/Асеновград | 1989 |
| Apipha | Atmospheric Metalcore | София | 2016 |
| Apocalyptic Sound | Gothic/Industrial | Бургас | 2003 |
| Application for Kill | Thrash/Death Metal | София | 2019 |
| Arcadia | Power Metal | Казанлък/София | 1993 |
| Arcana 11 | Stoner Rock | София | 2022 |
| Arctica | Melodic Power Metal | София | 2001 |
| Ares | Thrash Metal | Козлодуй | 1999 |
| Armed | Industrial Metal | Свищов | 2005 |
| Art Generation | Dark Wave | София | 1993 |
| Art Locomotion | Psychedelic Rock/New Wave | София | 2010 |
| Artery | Folk Metal/Crossover | Поморие/Амстердам (Холандия) | 1989 |
| Artificial Comet | Punk Rock | Русе | 2014 |
| Artificial Lungs | Alternative Rock | Пловдив | 2015 |
| Artikon | Progressive/Symphonic Metal | Варна | 2009 |
| Arx | Progressive Rock | София | 2009 |
| Aryan Art | Black Metal | София | 2001 |
| AS | Post Punk | София | 2007 |
| As Blood Decays | Death Metal | Севлиево | 2009 |
| As Orchids Wither | Metalcore | Пловдив | 2014 |
| As Soon As Possible | Alternative Metal | Габрово/София | 1999 |
| As We All Came | Deathcore | Шумен | 2014 |
| Assamblend | Blues Rock/Psychedelic Rock | Пловдив | 2007 |
| Astronauts Anyway | Metalcore/Djent | София | 2016 |
| Asura | Slam/Brutal Deathcore | София | 2018 |
| Atlantia | Progressive Metal | Ямбол | 2009 |
| Atoluka Blues Cartel | Blues | Пловдив | 2021 |
| Atomic Actors | Indie Rock | Варна | 2014 |
| Atranium | Black Metal | Пловдив/Стафорд (Англия) | 2010 |
| Atriell | Symphonic Metal | Варна | 2016 |
| Atroposy | Progressive/Groove Metal/Djent | Пловдив | 2019 |
| AttaXic | Groove Metal | Добрич/София | 2015 |
| Audiosphere | Alternative Rock | Стара Загора | 2019 |
| Automatic Flowers | Alternative Rock | Пловдив | 2007 |
| Avanzados | Funk rock/Classic Rock | София | 2006 |
| Ave Maria | Punk | София | 1990 |
| Avril In Blood | Death Metal | София | 2007 |
| Awake | Alternative Rock/Indie Rock | София/Лондон (Англия) | 2002 |
| Axecutor | Thrash/Black?Death Metal | София | 2010 |
| AxeZ | Thrash Metal | Варна | 2013 |
| Azanthys | Power Metal | София | 2019 |
| Azzrakgar | Black Metal | София | 2009 |