Adult DVD Studios
- S Model
- S Whores
- S.A.P. Inc.
- S.P.I. Entertainment
- S.v.t. Inc
- Sable Productions
- Sabotage Studios
- Saint Entertainment
- Salesone, Llc
- Salsa XXX
- Salt & Pepper Hardcore
- Sam Shaft
- Samtin Releasing C
- Samtin Releasing/sticky/shooting
- Samurai
- Samurai Sluts
- Sandd Enterprises
- Sandy Bunz
- Santino Lee
- Sapphire
- Sara Jay's Wyde Syde
- Sasuke
- Satisfyer
- Savage Submissions
- Savvy Co Llc
- Scala
- Scarlet Tower
- Scarlett Revell Studio
- Scorched
- Score
- Screaming O
- Screw My Wife Productions
- Screwbox
- Scriptmaster Films
- Scum Hunter
- Sean Michaels Entertainment
- Sean Michaels Productions
- Secret DVD
- Secret Lovers Production
- Secret X
- Secretly Pink (formerly Pow)
- Sector X
- Seduction
- Seductions
- See Him Fuck
- See It All Productions
- SEMG Film & Video
- Sensational Video
- Sensex
- Sensorium
- Sensual Heat
- Sensual Image
- Sensuva Organics
- Septo Prod
- Setec Astronomy
- Seven Silver Keys Productions
- Seven Sins
- Seventeen
- Severe Entertainment
- Severe Sex
- Severe Society
- SEVP
- Sex Art
- Sex Line Sinema
- Sex Lust Gay
- Sex Machine
- Sex Maniac
- Sex Mex
- Sex Parodies
- Sex Secrets
- Sex Top
- Sex Unfiltered
- Sex Video
- SexMex
- Sexoptic
- Sexpert Video
- Sexpo 2000
- Sexpot
- Sexsense
- Sexx Street Video
- Sexxxy World
- Sexy Castings
- Sexy Couples
- Sexy Modern
- Sexy Spades
- Seymore Butts
- SG Video
- Shadow Lane
- Shadow Players
- Shady Agent
- Shaftco
- Shami Productions
- Shane's World
- She Will Cheat
- She-Male Fantasies
- Shefetish
- Shemale Club
- Shemale Erotica
- Shemale Zone
- Shewillcheat.com
- Shinko-Sha
- Shiva
- Shockwave
- Shogun
- Shooting Star
- Shot At Home
- Shot At Home Entertainment
- Shots America Llc
- ShowTime
- Shunga
- Signature Collection Ltd
- Silver Sinema
- Silver Star Entertainment
- Silver Stone
- Silverback Entertainment Inc
- Silwa
- Simitar
- Simon Wolf
- Simply Real
- Sin Alliance
- Sin Bad
- Sin City
- Sin To Win
- Sin-sensual
- Sin-X
- Sinclair
- Sindrive
- Sinemale
- Sineplex
- Sinful Entertainment
- Sinful Pictures
- Sinful Pink
- Sinful Pleasures
- Sinful XXX
- Sinister
- Sinister Comixxx
- Sinners
- Sinners Adult Ent
- Sins of Asia
- Sins Pictures
- Sins Store
- Sinsation Pictures
- Sinsational
- Sinslife.com
- SinTec Media
- Sinteractive (formally Mercenary
- Sinterracial
- Sinthetic
- Sinworx Interactive
- SIR Productions
- Sir Richard's Condom Company
- Skin
- Skin Tight
- Skow Digital
- Skow For Girlfriends Films
- Sky Angel Blue
- Sky Blue
- Sky High Entertainment
- Slammed Productions
- Slave Labor Productions
- Slayed
- Sleazy Pics
- Sleazy Sluts Video
- Slim4k
- Sliquid, llc
- Sloppy Dogs
- Slut Inspection
- Sluts-R-Us
- Sly Productions
- Smart Beauty
- Smash Pictures
- Smashcom
- Smc Nickey Milo Productions
- SMG Video
- Smg Video Inc.
- Smother Babes
- Smothered Slave Com
- SMP
- Smut City
- Smutville Productions
- Smw Productions
- Snake
- Snap Shot
- Snatch Films
- Snatch Productions
- Soapy Massage
- SobeGirl
- Society SM
- Soft On Demand
- Soft Touch
- SoftCel
- Soho Video
- Something Weird Video
- Sony Electonics
- Soon XXX Productions
- Sophie Dee
- Soul Botanical Inc
- Sounds Publishing, Inc.
- Southern Secrets
- Southern Sins
- Spank This Studios
- Spanked Sluts
- Spanked Sluts Studio
- Spankoholics
- Spanky's Boys
- Spankys Trannys
- Sparks Ent.
- Sparks Entertainment
- Spartacus
- Spartacus Enterprises Sp
- Spearmint Rhino Films
- Spi Entertainment
- Spice Studios
- Spice Xcess
- Spitfire
- Spizoo Inc
- Sportsheets
- Spring Town Inc
- Spring Town Inc. C
- Spunkmouth
- Spunky Spur
- Squirters Films
- Sr Films
- Ssb Films
- Ssj Entertainment
- Stable Entertainment
- Stage 2 Media
- Standard Digital
- Standard Innovation Corporation
- Stardust
- Starlight Pictures
- Starlust Films
- Starr Productions
- Starstruck Videos
- Staxus
- Stella Films
- Sterling
- Sticky Drop
- Sticky Floor Cinema
- Sticky Video
- Stimulus Bill
- Stokebrook Video
- Straight Guys For Gay Eyes
- Strand Releasing
- Strapon.xxx
- Street Life
- Studio 69
- Studio A
- Studio B Entertainment
- Studio Teriyaki
- Stunner Studio
- Submissed
- Subversive Sinema
- SubVision Films
- Sudden Impact
- Sudden Impulse
- Suga D
- Suki Llc
- Sumo
- Sun Global Innovations Limited
- Sunlust Pictures
- Sunny Isles Management Llc
- Sunset Media
- Sunshine
- Sunshyne Video
- Super Knockout
- Super Model Media
- Super Vixxen
- Superdick
- Supremacy
- Surfer Pictures
- Surfside
- Surrender Cinema
- Sushi Core
- Suze Randall
- Svakom Group Usa
- Swallowed
- Swank Digital
- Swede Global Ab
- Sweet Femdom
- Sweet Jumbo Jugs
- Sweet Pictures
- Sweet Sinema
- Sweet Sinner
- Sweetheart Video
- Sweethearts Collection
- Sweetpix Productions
- Sweetwhip Inc.
- Swerve
- SWhores
- Swingers
- Sx Enterprises, Inc.
- SX Video
- Synister Films
- Syren Productions
- System Jo