Sometimes we see releases at public tracker and don't know where to get more of their release, because sometimes they just release in the private tracker. Here I got some internal encoder group of some private tracker, if you have more please continue to add in also mention @bucknaked.

Aither.cc	ATELiER,Kitsune,Muffin,NAN0 ,Stelks,muziek (music)
AlphaRatio	OFT (x264 encodes),SM737 (x265 encodes)
Awesome-HD (DEAD)	BMF, decibeL, D-Z0N3, HiFi, NCmt, TDD, TeeHee
ArabicSource (DEAD)	Taxfour, Titanic, Rosum, Zezoo, HunterX, Barcelona, Zorro, Thering
ABNormal	FUJiSAN, Ghost, GTM, HANAMi, HeavyWeight, Killermix, M4L1N, ZUP
AsianCinema	ARiN, KAWAiREMUX, iZON3
AvistaZ	AppleTor
Asgaard (DEAD)	QUARK, PANDEMONiUM, Xor06
ArabScene	HDMOVIE, Rosum ,monsifdx, Khaled94, OSN Team, ABOURINED, BRANCO, djomati, HaGraS, IICaeSarII, KimoHD, klashinkov, MR.KEY.HD, SALAHHD, scoot , ShimalHD YosefJoo, BoOoOoDa , Gad, JamesBond, MiDo007
Arab-Torrents	Excellence, yasser540, YasTon, clouds, cdhaty, EMPEROR, JaGUaR, HighQuality ModyAdmin, Miro, WamaEgypT, djomati, Monster, BAFADEM, JamesBond, SaSa comanda, GHELBO, marotheking
AfrBits	Prodji RG
BeyondHD	BeyondHD, BHDStudio, BMF, decibeL, D-Z0N3, NOSiViD, FraMeSToR, HiFi, iFT, iROBOT, Legacy, MKVULTRA, NCmt, RPG, TDD, W4NK3R, ZR ,FLUX
Bit-HDTV	BitHD
BlueTigers	ASPHiXiAS, TeamSuW
Blu-bits (DEAD)	BluHD, 3DNORD, PrimeHD, RealHD
Blu-Evolution (DEAD)	BluEvo, Jack, Ruxi, Jem
PT BTSchool	BtsHD, BtsDVD, BtsTV, Zone,FRDS,PULSAR
BTgigs (TorrentGigs)	inTGrity, TVM4iN
BTN	BTW, CBM, dbR, ESPNtb, HiSD, HiSQ, HPN, HRiP, iPRiP, iT00NZ, JJ, kpbong, LAZY, LoTV, NTb, PreBS, TOPKEK, TTVa, TVSmash, BTN, KiNGS, TOMMY
Bithorlo	BHO
BitHumen	No1, TRiNiTY
BalkanElite	CROwn
Blu-Torrents	BluRG
Blutopia	BLURANiUM ,BLUTONiUM, CONSORTiUM, CultFilms, DAMN,ISA,JK,PmP,WiLDCAT
BwTracker	IcTv, DUS
CHDBits	CHDBits, SGNB, CHDTV, CHPAD, CHWEB, CHDHKTV, StBOX, OneHD
CinefilHD	CiNEFiLM , CFHD, SLSS,NORHD
CN (DEAD)	TBH
CZteamTtracker (DEAD)	CzT
d4ever.cc	d4EUTeAm,GMT4U Team,Silver Bullet Upload Team (S.B.U.T)
Desi-Torrents	DDR, DrC, DUS, ExDR, IcTv, M2Tv, TmG, TeamTolly, TDBB, xDM
DanishBits	UNiTY, UNiTYSERiER
Elite-pirates (DEAD)	AQOS
eStone	eStone
Filelist	playHD, playTV, playMUSIC, playON, playMB, playSD, playBD,playWEB
Feedurneed (DEAD)	FooKaS, ACAB
Grtorrentt	Show Addicts Team
Greekleech.info	GLTeam,Unique Team,NetCrawlers
Greek-Team.cc	GrLTv, GLM, MyToG, GTRD
HD-Bits.com (DEAD)	PLRVRTX, HDBriSe, BobOki
HDCity	NoPA,NoVA,NoTA,NoXA
HD-Space	RightSiZE ,SpaceHD, Boss, BluPanther, CRiSPY, HDSpace, HDCLUB, ShocK, UnKn0wn
HD-Torrents	557953 (inactive), BaggerInc, BiZKiT, BluDragon, DopeHD (inactive), DownRev (inactive), E.N.D, gc04 (inactive), HB (inactive), HDBS (inactive), HiDt (inactive), HDMaNiAcS (inactive), HDT, HDVN, JM, JustHD, KRaLiMaRKo, LoRD, POH, SD (inactive), Slbenfica, StillChoosing (inactive), SPHD, SumVision, uRaMeSHi (inactive), ViSTA (inactive), ViSUALHD (inactive).
HDAhoy	YoHo
HDArea	HDArea, EPiC, HDApad, HDATV
HDCN	HDCN
HDBiger AKA HDHome	HDBiger, HDBigerTV
HDBits.org	(C)Z, AE, AJ8, AJP, Arucard, AtZLIT, AW, Azul, BBW, BG, BoK, Cache, Chotab, CJ, CRiSC, Cristi, Crow, CtrlHD, CyCR0, D4, DChighdef, DeblocKING, DiGG, DiR, DiRTY, disc, DBO, DON, DoNOLi, EA, EbP, Eby, ESiR, ETH, EucHD, ExY, FANDANGO, fLAMEhd, FSK, Ft4U, fty, Funner, GMoRK, GoLDSToNE, Green, greenHD, H2, h264iRMU, HALYNA, HDB, HDC, HDBiRD, HDL, HDxT, H@M, hymen, HZ, IDE , iCO, iLL, IMDTHS, iNFLiKTED, iNK, iOZO, J4F, JAVLiU, JCH, jTV, k2, KASHMiR , KolHD, Krispy, KTN, KweeK, Lesnick, LiNG, LolHD, lulz, M794, madoff, MAGiC, martic, McFly, MCR, MdM, MDR, MeDDlER, MiBr , MMI, Moshy, Mojo, NaRB, NiP, NiX, nmd, NorTV, NTb, NWO, OAS, ONYX, pB, PerfectionHD, PHiN, PiNG, PiMP, PiPicK, Positive, Prestige, Prime, PXE, QDP, quaz, QXE, RDK123, Redµx, REPTiLE, RightSiZE, RuDE, RZF, S26, SbR, SG, sJR, SK, Skazhutin, SLO, SMoKeR, somedouches, SbY, SrS, SSG, SuBHD, TayTO, tBit, ThD, THORA, tK, TM, toho, TOMMY, Tree, TrollHD , tRuAVC, tRuEHD, TSE, TsH, UioP, UxO, V, VanRay, VietHD, ViNYL, WESTSiDE, WiHD, XSHD, yadong1985, YanY, Z, Zim'D , ZQ ,Zorosenpai,REBORN,HiP,SPHD
HDCenter	HDC, NERDS, Tvr
HDChina (HDWinG)	HDWinG, HDWTV, HDCTV, iHD, HDChina, KiSHD, OpenMV, HDC, CrsS, LU9998, NGB, CMCT, JOMA, beAst, KHQ, DIY, TAiCHi
HDME (DEAD)	HDme , INTL , iCandy , FourGHD , Ruxi
HDLeech (DEAD)	MeRCuRY, DGN, HDL
HDQueen	PHD, HDQueen
HDRoad	MySilu, HDROAD
HDStar	HDS, HDSTAR, HDSPAD
HD-Only	Only, 4HDO, MLN, PHOENiX, DBHD, KiKi, ONLY, PEWE
HD-Olimpo.club	HDO
HD-Spain (DEAD)	GrupoHDS
HDPter	EPiC, HDPter, Pbk, HDPad, HDPTV, HDPterOST
Reelflix	LEGi0N
HD4FANS	beAst
HD-Unit3d	GHiA, Archmage, HDU, DeamoN, JoN, Soltu
Hon3yHD (DEAD)	Hon3y
HQMusic	HQM,MRHQ , OwL
HDBytes(DEAD)	all encodes are internal
HDtime	HDTime
HQSource (DEAD)	ELiTE, R2D2
HDSky	HDS, HDSPad, HDSTV
HD-SportBits (DEAD)	Reborn4HD
HDRush (DEAD)	PSYPHER, PHDR, HDRush, TheVortex , JsR, BluPanther, MZ0N3
Hyperay	Geek, Tron Hyper, PureTV, TronTV, iMusic, Neon, Original, Classic HyPad
Kapaki.info	VisualArt Team, IMT Team, Xtreme Team, Kefalos Team, Ft4U Team
LinkToTheInter.net | LTTi	LTTi, Vendetta, Kuryu, QalesYa
inTheShadow	QOS
IPTorrents	SSN - 576p WEBRips and BDRips LAMA - WEBRips and Bluray 720p,1080p and 2160p TVTeam - AFG,mSD,MeGusta
HDFANS	QHstudIo ,watchHD,AdWEB,HDFans
JoyHD	JoyHD
KeepFriends	MNHD-FRDS
LST.gg	av1nic - Focused on 4K HDR AV1 encodes eranger2 - Focused on 1080p WEB-DL KIMJI - Focused on 1080p AV1 encodes L0ST- Focused on stuff and things NAV1 - Focused on AV1 encodes St0rM - Focused on x265 encoding TiTTE - Focused on REMUX's UTP - Focused on 1080p WEB-DL
LeechTurk (DEAD)	LTRG
LeechAccess (DEAD)	LCC
Majomparade	Gepont
M-Team.cc	M-Team, KiSHD, BMDru, HDStar, HDTime, Pack, CNHK, KiSHD (inactive), MPAD, MTeamTV, OneHD, R2HD (inactive), StBOX and TnP (inactive).
Morethantv.me	SMURF,hallowed
Movie-Torrentz (DEAD)	ViP3R, m2g
OurBits	OurBits, OurTV, OurPad, PbK, HosT,
OpenCD	OpenCD, LLM, KHQ
PixelHD	PxHD, PxEHD, Px3D, PxHD-Mobies,Px4K
PolishTracker	PTRG,PT, d00mEr, WPRF, NiNa, KiKO, VV, NTK,
PolishSource	PSiG, AtM, presa, FARNA, pawel2006, DeiX, FGHJ, SliMDiCK, iNTERnet
PrivateHD	TRiToN
PTN (DEAD)	SKALiWAGZ , OmertaHD
PTHome	PTH,PTHweb,PTHtv
PTP	TBB, HANDJOB, HRiP
Ransackedcrew.info	CrEwSaDe
ReleaseZone releasezone.org	RZ-RG
redemption	RESEVIL
RGU.life (DEAD)	Regents
RipThe.net (DEAD)	menace II Society
Scene-Rush	NextForce Team (NFT), PTpOWeR.TEAM (PTP)
SceneHD	Only scene encodes
SDbits (DEAD)	CtrlSD, RR, MMI, HYPE
ScienceHD (DEAD)	CalibeR , hPLuS
SpeedApp	FZHD , FZBD , FZ4K , NViDiON , EShare ,PiPS , CRC , 41RGB , iREAL , MOO , SubZero , HDMAN , ANDRONIKA , FZWEB , FZSD , SPBD , SPHD , SPSD , SPWEB , SPDVD , SPTV , SP4K
ScanBytes (DEAD)	ScanExclusive
SceneXpress (DEAD)	CiNEMANiA, GENESIS , CONFiDENT, XPRESS
Simpledevelopment	SiMPLE
Speed.cd	diversity, scott24
SuperBits	EGEN, PANDEMONiUM, RAPiDCOWS, VideoGod
THE SCENE PLACE	TSP, TSPxL
TTG	WiKi, NGB, DoA, BDClub, OoKU
The1st.be	1st Release Team
Torviet (DEAD)	VietHD, KiD , EPiK , EbP
TeamTPTB	TPTB
TeraCod (DEAD)	BaKeR, YRP, NoGrp, TERACOD, KuKaS, Yoshi, HuN-vetike, Hun-Gege
TNTracker	DEFUSED,Mayday,POE , LoC
TorrentLand	EmlHDTeam,Eml Team , Castellano
TorrentLeech	EPSiLON
TrackerHD (DEAD)	TRCKHD
TehConnection (DEAD)	HaB
UltraHD.net	UltraHD , UltraTV
World-In-HD	PULSE, TMB, GAIA, WiHD, FURAX, LFN, HGR
x264 (DEAD)	XTSF, DiRTY, ViKAT, Bunny, Chotab, VaAr3, Soul, Nero9, Green, JENC, tRuEHD, IJR, LSHD, JeM, RedJohn, kkp, incarnation, GreyWolf
Xthor.tk	JUSTFORFUN, CARPEDiEM, A3L, BlackFlag, BOUQUINE, Giorgy, NLX5, LiBE RTAD, Poney, ReBot, ViKINGS, FRATERNiTY, WEEDS, GHZ, NEO, SCiTiS, BSD, MYSTERiON, Scaph, ALLDAYiN, NLX5, CHiLL, ReBoT, RiPiT, LM23, T3KASHi, DELiCiOUS, CherryCoke, DEMON, iXTHOR, QWERTZ, LOOKSMAX, SpiriTus, A3L, DZ, DavidGoodenough (inactive), Tokuchi, (inactive), Yn1D (inactive), QUALiTY (inactive), LEGi (inactive)
DaTaTalii (DEAD)	DTTeam
BroadCity	BdC
Turktorrent	TURG
XSpeeds	xsHQ

Scene/P2P groups:
Scene:

10801920, 2HD, 4F, 7SiNS, 850105, aAF, aBD, ADHD, AERO, ALLiANCE, AMBiTiOUS, AMIABLE, ANGELiC, ASAP, AVCHD, AVS720, BAJSKORV, BALLS, BARGE, BAWLS, BestHD, BiA, BLOW, BLUEYES, BRICKSQUaD, BRiGHT, BRMP, BWB, c0nFuSed, C4TV, CBGB, CDDHD, CiNEFiLE, CLASSiC, COMPULSiON, CRiMSON, CROSSBOW, D3Si, DAH, DiRT, DEFiNiTE, DEPRAViTY, DHD, DiFFERENT, DIMENSION, DiVERGE, DRHD, DUPLI, EiTheL, ENCOUNTERS, ETHOS, euHD, EUSTASS, FAIRPLAY, FaNSuB, FCC, Felony, FHD, FilmHD, FKKTV, FoV, FQM, FRIGGHD, FSiHD, FTP, GTVG, H2, haggis, HAiDEAF, HALCYON, HCA, HD1080, HD4U, HDEX, HDX, HiGHTiMES, HILSWALTB, HUBRIS, HV, HYBRiS, iBEX, iGNiTiON, IMMERSE, iMSORNY, iND, iNFAMOUS, iNGOT, iNVANDRAREN, Japhson, JMT, KaKa, KYR, LCHD, LEVERAGE, LMAO, LOL, LOST, MACHD, MACK4, MAGiCAL, MAGiCViBE, MELiTE, MeTH, METiS, MHQ, MiNDTHEGAP, MiSFiTS, MOAB, MOMENTUM, MSE, NERDHD, NGCHD, NODLABS, NOHD, NVA, OEM, OEM1080, OMiCRON, ORENJI, P0W4, PELLUCiD, PFa, PREMiER, PSV, PURE, PUZZLE, QCF, QSP, RAP, REFiNED, REMAX, REWARD, RiVER, RTA, SAiMORNY, SECTOR7, SEMTEX, SEVENTWENTY, SHDXXX, SHORTBREHD, SIBV, SiNNERS, SiTiN, sPHD, SSF, SUN, SUNSPOT, SWAGGERHD, SYS, TASTETV, TENEIGHTY, TERRA, THENiGHTMAREiNHD, THUGLiNE, TiMELORDS, TiMTY, TiTANS, TLA, TUSAHD, TVP, TWiZTED, URTV, VAMPS, ViD, ViLD, W4F, WASTE, WAVEY, WEST, WHEELS, WiKi, WLM, WPi, XPERT_HD, XSTREEM, XLF, YesTV, ZMG, ZZGtv,

P2P:

3LTON, AFG, AHD, ALeSiO, aXXo, BDClub, Blu-bits, BlueBird, BluWave, BRrip, BTT, CHD, CHDBits, CrEwSaDe, CtrlHD, D-Z0N3, de[42], decibeL, DEViSE, DON, EbP, EiMi, ESiR, EuReKA, FASM, FLAWL3SS(retired), FoRM, FraMeSToR, FTW-HD, FZHD, GAGE, Gazdi, george.c, Gogeta, GoLDSToNE, HD2DVD, HDBT, HDClub, HDLiTE, HDMaNiAcS, HDME, HDmonSK, HDR, HDxT, HiDt, HiFi, HoodBag, iLL, INtL, KingBen, KiNGS, KLAXXON, LTRG, mHD, mSD, NhaNc3, nHD, nSD, PerfectionHD, PRODJi, RUDOS, SANTi, Shadowman, SiC, Softfeng, TorrenTGui, TRASH, TrollHD, ViPER, ViSiON, WHiiZz, xander, YellowBeast, YoHo,HDVid , HQMi , BLiNK , DrSi