Some Guitar Impulse Responsives

IR CABs, NAM, Kemper, Quad Cortex, ToneX (see the YouTube Video List)

Many Cab Sims & IRs

Aurora IR Packs + Kemper Profiles

Many Impulse Responive Packs

Wider selection of IR packs with guitar cabinets from well-known manufacturers.

Also: NAM Packs + Kemper Packs + Quad/Nano Cortex + ToneX + Helix + Fractal + Headrush + Ampero II + Genome

Guitar Cabinet IR Libraries - A wide selection of well-known manufacturers (e.g., Mesa Boogie, Marshall, Orange, Fender VOX) and speaker types (e.g., Celestion, Jensen, CTS). 

A large number of different speakers from Celestion (see also this Video)

A wide range of different IR Packs, NAM Packs and Profile/Preset Packs (e.g. Line6, Genome, Headrush, AmpliTube, ToneX etc.).

Messiah IR Pack

NAM Profiles + ToneX + AIDA-X

Various IR packs - including free ones

See also: web.archive.org

Individual IRs + IR Packs

Website: Fat Lazy Cabs

buy here: longueurdonde.ca

Kemper Profile All-in-one Bundle + browse the creators & courses for more

Two notes - Fortin Essentials DynIR Pack (only works in Two notes eco-system)

Meshuggah Kemper Pack (only works on Kemper products)

faCompleteIRBundle - for example: Engl E 212VH Vintage 2×12 + Mesa Boogie 4×12 Rectifier. 

See also: Marshall 1960A (TM) (1995 Limited Edition) Red

Legacy Cab Packs + DynaCab Packs

Various packages (with slightly disturbing names and descriptions - metal, it seems)

Soundpacks (ToneX, LINE 6 PodGo + PodGo Wireless , LINE 6 Helix-Serie, Fractal Audio AXE-FX III, FM9 and FM3, Harley Benton DNAfx GiT & MOOER GE150, LINE6 Pod Express)

Bundle of I - IV and more (a lot of different packs)

Kalthallen Cabs Pro

Recabinet IR Library no longer available. Information about Recabinet IR Libaray on demamar.de (german) and on production-expert.com.

Impulse Responses and NAM Pedal Models

IR - RCS/212 - Starter Pack +  IR - RCS/212 - Full Pack

Impulse Responses (Wide selection)

Heavy Cabs & Tones

IR Cab Packs + Reflex IRs

see also: Essentials Capture Pack

A free download at dropbox: ML Sound Lab's BEST IR IN THE WORLD

Impulse Responsive + NAMs

New Vintage Audio offers packs for some devices and software, including BOSS, Fractal, Headrush, Hotone, Line6, Mooer, and NUX, among others.

TSE & IR Pack & Kemper Profiles

Guitar Tones & NAM Profiles

CAB PACKS - They say they're the best IRs in the world. Okay... 

SuperCabinet IR Libraries - Fluid IR collection

The library is created for the TH-U SuperCabinet.

Impulse Resonse Libraries (Fractal Audio Format + Line 6 Format + Wave Audio Format)

See also: Studio Standard + The Chugginator

FENDER 68 Custom Vibro Champ Reverb Amplifier IRS and more (use the filter options)

Mix Ready Guitar

Some Rock und Metal IR Packs with Hybrid IR™

A wide selection of cabinets from Marshall, Orange, ENGL, Bogner, Peavey and more.

CABINET IRs + ELECTRIC IRs + ACOUSTIC IRs

NAM Profiles + Kemper MK1 Profiles

Roby Rocks offers additional packages for devices and software, including Neural DSP, Fractal, Headrush, Line6, Mooer, and NUX.

Roby Rocks YouTube Tutorials Chanel.

IR packs

SDS Impulse Response Packs & speaker + AXE FX II tonematches + fractal audio AX8 presets + Kemper Profiles + Quad Cortex Captures + TONEX Tone Model Packs

IRs over sonicdrivestudio.com and Captures over sonicdrivestudio.com (Cortex, Kemper, ToneX).

IR & NAM & Kemper & Helix & Axe-FX & Tonex & Quad Cortex / Nano

AI Impulse Response Packs + NAM Packs + Kemper Packs

Tone Junkie also offers Helix, Quad Cortext, ToneX, Fractal, Headrush, and more.

Virtual Cabs

See also by Fortin: Two notes - Fortin Essentials

Some Impulse Responive Packs

V2 Packs (large number of packs)

Premium Impulse Response Cab Packs (a whole range of IR packs from well-known speaker manufacturers)

Amps Sample Sets