FINLAND:
Combat Rock Industry (Wasted, Endstand, Manifesto Jukebox, Hero Dishonest, Selfish...)
Fight Records (Riistetyt, Kaaos, Viimeinen Kolonna, Totuus, Unkind, Tampere SS...)
If Society (Hero Dishonest...)
Kaaos Korporaatio (distro)
Loud'n'Wrong Records (Sven Tuba och Fiskmåsarna...)
P.Tuotanto (old label, now mailorder)
Passing Bells (Sairaat Mielet, Phoenix Foundation, Manifesto Jukebox...)
Roku Records (Yhteiskunnan Ystävät, Laybacks...)
Stay Free Underground (Kohu-63...)
Supo Records (Red Cabaret...)
Zerga Records (Deep Turtle, Painajainen...)

SWEDEN:
Human Vermin (Ex-Elderberry Records)
Putrid Filth Conspiracy (Intensity, E.T.A., Kontrovers...)

DENMARK:
Hjernespin (No Hope for the Kids, Gorilla Angreb...)
Kick'n'Punch (Paragraph 119, Amdi Petersen's Armi, Uro...)
Plague Bearer (Uro, Skitkids, Besthöven...)

UK:
Flat Earth Records (Health Hazard, Sawn Off, John Holmes, Doom, Suffer, Cress...)
Ruptured Ambitions (Bus Station Loonies...)

GERMANY:
Alerta Antifascista (Burning Kitchen, Paragraf 119, Contra la Contra, Apatia No...)
Campary Records (Oi Polloi, Bus Station Loonies, Disorder...)
Dirty Faces (Colera, Agrotoxico, Antidote...)
Falling Down Records (Petrograd, Daddy Longleg, Kobayashi, Koyaanisqatsi)
Farewell Records / Plastic Bomb Records (Wolfbrigade, Wolfpack...)
Höhnie Records (Riistetyt, Kohu-63, Kaaos, Asta Kask...)
Twisted Chords (La Fraction, Sin Dios, Wasted, Juggling Jugulars, Inner Conflict...)
Yellow Dog (Unkind, Remains of the Day, Born/Dead, Consume, Hellshock, Bombstrike...)

LUXEMBURG:
Svaveldioxid (Makiladoras, Earth Today)

FRANCE:
Maloka (Inner Terrestrials, Execradores, Kochise...)
Mass Productions (Inner Terrestrials, Sick on the Bus...)
Stonehenge (Born Dead Icons, To What End?, Ekkaia...)

SWITZERLAND:
Rinderherz Records (Pack, Brutal Massacre, Poundaflesh...)

AUSTRIA
Bloodshed666 (label/organizer, wien)

CZECH REPUBLIC:
Malarie Records (Innoxia Corpora, Complicite Candide, E.O.M., Forca Macabra...)
Ultima Ratio (See You In Hell...)

POLAND
Nikt nic nie wie (Post Regiment, Dezerter, Oi Polloi... records & lots of tapes)
Trujaca Fala (Born Dead Icons, Juggling Jugulars, Disorder...)

RUSSIA:
Karma Mira Records

USA:
Barrage of Salt (Rakkaus, Human Order, Blight, County Z, Stillborn...)
Ebullition (Seein' Red, Submission Hold, SHOTS...)
Hardcore Holocaust (SHOTS, WBTD, Driller Killer, Black Uniforms, Viimeinen Kolonna,
Riisteterror...)
Havoc Records (Aus-Rotten, Code-13, Tampere SS, DS-13, Vitamin X, Skitsystem...)
Six Weeks (Forca Macabra, Armagedom, Valse Triste, Boiling Man...)
Sound Idea Distribution / Burrito Records (Hated Youth...)
Prank Records (HHIG, WBTD, Jabara...)
Vivisick (the Awakenings...)

JAPAN:
H.G.Fact (Tetsu-Arrey, Forward, Paintbox, Selfish...)
Acclaim

I want to add here only some reliable labels I have worked with.