Adult DVD Studios
- M. D. Science Lab
- M.b.f.g.
- M4A
- MacDaddy
- Macdaddy Entertainment
- Mach 2 Entertainment
- Macho Man
- Mad House XXX
- MAD Media
- Madacy
- Maddie G Productions
- Madison Bound
- Madison Young
- Madness
- Magic Moments
- Magic Wand
- Magma
- Magnus
- Magnus Platinum
- Maiko Pictures
- Mainstream
- Majestic
- Major Distribution
- Major Quake
- Major Video Concepts
- Male Media One
- Male Reality
- Malesolos.com
- Mancini
- Mandala
- Manipulative Media
- Mankai
- Mantra Films
- Marc Dorcel
- Marie Madison Media
- Marina Pacific
- Mariska X
- Maroma Usa, Llc
- Marquee / Digital Dreams
- Marquis
- Mary Carey Productions
- Masque International, Llc
- Mass-Eve Films
- Massage Parlor
- Massage Rooms
- Master Jerry
- Master Len
- Master Snaurg
- Masterpiece
- Matrix
- Matrock Adventures
- Matsu
- Mature Woman Films
- Mature XXX
- Mature.nl
- Maven
- Maverick
- Maximum Desire
- Maximum Pleasures
- Maximum Xposure
- Maximum XXX
- Maxine X
- Mayhem
- Md Science Lab Llc
- Mean Bitches Entertainment
- Mean Felines Productions
- Meanbitch Productions
- Media Blasters
- Media Products Inc.devils Films
- Mediaswing Productions
- Medical Experts
- Medina Ii, Inc.
- Medina, Inc.
- Medmama Llc
- Medplex.net,inc.
- Megasol Group Usa
- Megga Mgt Llc Dba The Male Rose
- Melon Juggler
- Melonson Productions
- Meltdown
- Men Are Slaves
- Men of Odyssey
- Men's Sexuality
- Mental Beauty
- Mercenary Pictures
- Merci Beaucoup
- Mercury Releasing
- Met Art
- Metabolic
- Metro
- Metro HomeVideo
- Metrock Adventures
- Metropolis
- Mia Khalifa
- Miami Vibes Ent
- Michael Kahn
- Michael Ninns Celluloid Addictio
- Michelle Austin Films
- MID Productions
- Midline
- Midnight
- Midnight Mayhem
- Mikado
- Mike Hott Prod.
- Mike Hunt Inc.
- Mike Hunter International
- Mike John Productions
- Mile High Dvd
- Mile High Media
- Mile High Xtreme
- Mile High/Deviant
- Miles Long Productions
- Milf and Honey
- Milf Inside
- MILF Trip
- Milfalicious
- Milfed
- MILFY
- Milky Wisconsin Videos
- Millennial Playtime Studios
- Miltf
- Mirage
- Miss Nude
- Miss Simone
- Miss T Interactive
- Miss T Production
- Missax
- Mitchel Brothers
- Mixed X
- MJX Productions
- Mk Distribution, Llc
- MMG
- Mmg / Anime Mail Order
- MMI
- MMV
- Models on Film
- Modern Day-Sins
- MOFOS
- Mojo Studios
- Mojo Video
- Moli Exclusive
- Mom XXX
- Mommy Blows Best
- Moonlight
- Morally Corrupt
- Mormon Girlz
- MoserVision
- Mother Fucker Films
- Mother Productions
- Motherfuckers
- Mothers I'd Like To Fuck
- Mound City Productions
- Mountain Shadows Prod.
- MovieTime
- Mr Niche
- Mr. Bad Daddy
- Mr. Big POV
- Mr. Extreme
- Mr. Makamoto
- Mr. X Productions
- MSP Media
- MSSM Group
- MTGA
- Muffia
- Mugen
- Multimedia Pictures
- MultiMedia Verlag
- Music Video Dist.
- MVG
- My Girl
- My Peach Productions
- My Sexy Kittens
- My Xxx Pass
- MYLF
- Myron Manufactoring Corp
- Mystic Productions
- Mystim Gmbh
- Mythic Entertainment