There are some minor changes I found after posting.
Supposedly at one point there was...
I'll drop the revised list below.
You'll notice lines like (May not be Production) - that's code for perhaps that factory was available in 2840 or even functional. There is also some issue with a couple of the shipyards put back into production at some point after 3050 - Midway, Togura and the Izumi Yard comes to mind. There is definitely room for revision here.
Fourth Edition Faction Factory & Equipment Listing
Old Capellan Confederation
ComStar Protectorate
Bryant – ComStar Protectorate
Lantern Corp – Grasshopper
Hardford Company – Cicada
Caph – ComStar Protectorate
Stormvanger Assemblies – Falcon, Javelin, Striker, Cyclops (d. 2nd SW)
Tikonov Reaches
Tikonov – Tikonov Reaches
Earthwerks – Thunderbolts, Thugs, Griffins, Stingers Bombardiers, Koschei (or another RetroMech) Thrush, Transit Fighter
Ceres Metals – Basic Conventional Vehicles (Could be a new factory or Vindicator)
Rashpur Owens – Leopard, Union DropShip
Demeter – Tikonov Reaches
Vicore Industries – Valkyrie, Phoenix Hawk (d. 1st SW by Terrorists – Plant could be Rebuilt)
Lycomb Incorporated – Stuka Fighter (d. 1st SW)
Bell – Tikonov Reaches
Andoran Industries – Clint (d. or ruined in 2nd Succession War)
New Hessen – Tikonov Reaches
Hessen Weapons Werks – Large Weapons Plant, Conventional Vehicles
Bharat – Tikonov Reaches
Kilosh Industries – Conventional Vehicles (d. Amaris Coup)
Tigress – Tikonov Reaches
Paulina Weapons – Cyrano VTOL (d. Amaris Coup)
Tybalt – Tikonov Reaches
Jolassa Armored Vehicles – Fury Tank (d. 1st SW)
Wei Collective
Styk – Wei Collective
Tao Mechworks – Victor (but enjoyed larger lines)
Asuncion – Wei Collective
Kallon Industries – Crusader (May not be in Production)
Earthwerks – Flea
Suzano – Wei Collective
Brooks Incorporated – Harasser Tank
Sarna Commonality
Corey – Sarna Commonality
Hollis Industries – (BattleMaster/Highlander) Catapult
Sarna – Sarna Commonality
Tengo Aerospace – Thrush, Cheetah, Lightening Fighter, Seeker, Mule, Mammoth DropShip
St. Ives Compact
Ares – St. Ives Compact
Bergan Industries – Locust, Stinger (25 per year)
Earthwerks Ltd. – Union, Overlord DropShips
Quickcell – Tracked APC, Heavy Tracked APC, Scorpion, Bulldog, LRM Carrier, SRM Carrier, Manticore Tank
Necromo – St. Ives Compact
Necromo Shipyards – WarShip Production Later – Maybe a Repair Yard
St. Ives – St. Ives Compact
Ceres Metals – Vindicator, Phoenix Hawk, Blackjack (Needs to be decided)
HildCo – Pillager, Long Tom
Mujika Aerospace – Boeing Jump, Angel, Crane II Fighter
StarCorp – Warhammer, Emperor, Longbow
Tengo Aerospace – Thrush, Cheetah, Lightening Fighter
Indicass – Capellan Confederation
Ceres Metals – Swift Wind, Wheeled APC, Heavy Hover APC, Galleon, Hetzer Wheeled
Capellan Confederation
Sian – Capellan Confederation
Hellespont Industries – Vedette, Scorpion, Hover APC, Heavy Tracked APC, Heavy Wheeled APC, Pegasus Scout Tank, Maxim Hover Transport
Hellespont Mechworks – Wasp
Saroyan Special – Transgressor, Meteor, Crane II, Angel Fighter
Capella – Capellan Confederation
Ceres Metals – Firestarter, Vindicator, Ostroc, Marauder (May not Produce these)
Rashpur Owens – Merchant, Invader, Monolith JumpShip, Achilles, Triumph, Excalibur, Avenger DropShip
Mujika Aerospace Technologies - Transit Fighter
Iona Light Shipyards – built the Rouge Fighter until 2797
Betelgeuse – Capellan Confederation
Aldis Industries – Demolisher, Schrek, Behemoth Tank (May not be in Production)
Mech Factory – Stinger, Locust Low Production (25 a year)
Grand Base – Capellan Confederation
Earthwerks – Stinger, Shadow Hawk, Archer
Texlos – Capellan Confederation
HildCo – Lightening Fighter
Warlock – Capellan Confederation
Ceres Metals – Blackjack, Ostroc, Marauder (May not be in Production)
Exedor – Capellan Confederation
Confederation Defense Corporation – Firebee (d. in 1st Succession War)
Warrior Fiefdoms
Victoria – Warrior Fiefdoms
Shengli Arms – Wasp, Stinger, Firebee
Earthwerks – Flea
Menke – Warrior Fiefdom
Ceres Metals – Po Tank (May not be in Production)
StarCorp Industries – Warhammer, Emperor, Highlander
Old Draconis Combine
Terran Free States
Al Na’ir – Terran Free State
Yori MechWorks – Catapult, Charger, Atlas
Scarborough – Pegasus, Saracen, Saladin, Scimitar, Maxim, Hover APC, Heavy Hover APC
Altair – Terran Free State
Izunami JumpShip – JumpShips (May not be in Production)
Kurita Combine – Riever Fighter
Dieron – Terran Free State
Terada Shipyards – WarShips or JumpShip Repair Yard (d. 1st SW)
Whitworth Company – Whitworth (d. 1st SW)
Kervil – Terran Free State
Wakazashi – Sabre
Quentin – Terran Free States
Independence Weaponry – Jagermech, Exaclibur, Marauder, Victor, Charger, Atlas
Warner Inc. – Sparrowhawk Fighter
Nirasaki – Terran Free States
Whitworth Specialty – Whitworth
Errai – Terran Free States
Maltex Corporation – Wyvern, Thug
Biden BattleMechs – (d. 1st SW)
Ozawa – Terran Free States
Diplan – Jenner, Mongoose, Lasers (d. 2nd SW)
Wunderland – Electronics
Maltex – Wyvern, Thug
Shedar – Terran Free States
Rander – Electronics
Epsilon Eridani – Terran Free States
Harvard Company – Ahab Fighter (1st SW)
Sendai Trade Alliance
Aix-La-Chapelle – Sendai Trade Alliance
Diplan Mechyards – Wasp, Stinger, Mercury
Albali Shogunate
Tematagi – Albali Shogunate
Nimakachi Fusion – Spider, Wasp
Robinson Freehold
Marduk – Robinson Freehold
Norse Technologies – Griffin, Wolverine
Proserpina – Robinson Freehold
Bulldog – Bulldog, Manticore Tank
Guided Technologies – SRMs
Robinson – Robinson Freehold
Robinson Standard – Sentinel, Black Knight, Victor
Valiant Systems – Missiles, Armor
Also maintained factories for DropShip and JumpShip Parts
Layover – Robinson Freehold
Quickcell – Heavy Tracked APC, LRM Carrier, SRM Carrier, Scorpion, Vedette Tank
Salvatore – Seeker DropShip
Tancredi IV – Robinson Freehold
Precision Weaponry – Lasers
Principality of Rasalhague
Jarett – Principality of Rasalhague
Alshain Weapons – Panthers
Schuyler – Principality of Rasalhague
Wakazashi – Sai, Sholagar Fighter
Galileo Instruments – Achilles, Monarch, Behemoth DropShip
Dharma HyperSpace – Scout JumpShip
(Schyler – Disputed Space/Rasalhague Free Zone
Mangon Aeronautics – Sholagar Fighter) – Changed to Principality
Alshain – Principality of Rasalhague
Bergan Industries – Locust
Gorton Kingsley Thorpe – Panther, Dragon
Joint Equipment – Skulker, Scorpion, Hetzer, LRM Carrier, SRM Carrier
New Oslo – Principality of Rasalhague
Gorton Kingsley Thorpe – Panther, Phoenix Hawk
Rasalhague – Principality of Rasalhague
Joint Equipment – Hetzer, LRM Carrier, SRM Carrier
Spittal – Principality of Rasalhague
Benson Bjorn – Tracked APC, Scorpion, Vedette Tank
Trondheim – Principality of Rasalhague
Swedenborg Heavy – Behemoth, Demolisher, Schrek Tank
Drconis Combine
Krenice – Draconis Combine
Alshain Weapons – Panthers
Avon – Draconis Combine
Matabushi – Union, Overlord DropShip
Chatham – Draconis Combine
Wakazashi – Suzume, Defender, Inseki, Shilone Fighter
Stellar Trek – Merchant, Invader, Monolith JumpShip
Tomori Trans – Vengeance DropShip
Irece – Draconis Combine
Might have produced LAMs
Luthien – Draconis Combine
Luthien Armor Works – Jenner, Dragon, Quickdraw, Lancelot
BBP Industries – Triumph, Excalibur, Intruder DropShip
Buda Imperial – Lifesaver Coolant, Daimyo Headquarters Truck
Wells Technologies - Charger
Qandahar – Draconis Combine
Dow Nexus – Fusion Engines
Alliance of Galedon
Hachiman – Alliance of Galedon
Tandi Computers – Computers
Hun Ho – Alliance of Galedon
LexaTech – Archer, Grasshopper
New Samarkand – Alliance of Galedon
New Samarkand Metals – Demolisher, Schrek, Behemoth Tank
Wakazashi – Panther
Yan – Crow VTOL
Fellanin II – Alliance of Galedon
Aerospace Factory of some sort
Soul – Alliance of Galedon
Blankenburg Technologies – BattleMaster, Crockett
Galedon – Alliance of Galedon
Raimei Aerospace – Sabre Fighter
Midway – Disputed Space/Draconis Rifts
Midway Shipyards – WarShips (Invader JumpShip or JumpShip Repair Yard)
Telfar BattleMechs – Lynx, Maelstrom
Capellan Marches
Kathil – Capellan Marches
General Motors – Cestus, Marauder, Goliath, Pillager, Blackjack, Nightstar
General Motors – APC Light Vehicle
McKenna Shipyards – Mule, Seeker, Mammoth DropShip, Invader JumpShip
New Syrtis – Capellan Marches
Johnston Industries – Ammunition Plant
New Syrtis Shipyards – Gazelle, Monarch, Mammoth DropShip
Axton – Capellan Marches
Wangker Aerospace – Corsair, Eagle, Thunderbird Fighter
Talon/Wernke – Capellan Marches
Kallon Industries – Hornet (d. 2762), Griffin, Shadow Hawk, Wolverine, Rifleman, JagerMech, Guillotine, Artillery, Light Vehicles, Union DropShip
Panpour – Capellan Marches
Jalastar Aerospace – Javelin, Grasshopper, Sabre, Centurion, Comet, Defender, Meteor Fighter, Manticore Tank
Challenger Systems – Monolith JumpShip
Kingdom of Zion
Nanking – Kingdom of Zion
Kallon Industries – Shadow Hawk, Wolverine, Partisan, Ontos Tank
Tengo Aerospace – Cheetah, Lighting Fighter, Mule DropShip
Aldebaran – Kingdom of Zion
Small ‘Mech Factory – Wasps (10 per year)
Federated Suns
Belladonna – Federated Suns
Cal Boeing – Ferret, Wild Weasel, Marten, Ripper VTOL
Bristol – Federated Suns
Jolassa Kumbold – Fury Tank
Crofton – Federated Suns
StarCorps – Warhammer, Longbow, Emperor
Delavan – Federated Suns
Universal Air – Invader, Star Lord JumpShip
Dynamico – Avenger, Buccaneer DropShip
Galax – Federated Suns
Federated Boeing – Gazelle, Leopard, Leopard CV, Union, Overlord, Mule, Seeker, Mammoth DropShip (Possibly JumpShip Capable)
Gulkana – Federated Suns
Yeffters Weapons – Autocannons
Kirklin – Federated Suns
Kallon Weapons – Partisan Tank
New Avalon – Federated Suns
Achernar – Locust, Wasp, Phoenix Hawk, Enforcer, Dervish, Thunderbolt
Corean Enterprises – Wasp, Valkyrie, Centurion, Trebuchet
Lycomb Davion – Stuka, Lightening, Hellcat Fighter
Salem – Federated Suns
General Motors – Wheeled APC, Heavy Wheeled APC, Patton, Rommel Tank
Disputed Space
Hoff – Disputed Space/Freehold Zone
Friden Aerospace Part – Aerospace Fighters
Mendham – Disputed Space/ Warrior March Hot Zone
Mendham Electronics – Electronics
Johnsondale – Disputed Space/Sun March Hot Zone
Valiant Vehicles – Pegasus, Striker, Pilum Tank
MacIntosh – Disputed Space/Sun March Hot Zone
Apple Computers – Electronics
New Earth – Disputed Space/Terran Badlands
New Earth Trading Company – Karnov, Vedette, Manticore Tank
Northwind – Disputed Space/Terran Badlands
MatherTechno Incorporated – Vulcan (d. 1st SW)
Corsara Weapons – Crab
Dieudonne – Disputed Space/Skye-Marik Rift
Imstar Aerospace – Cheetah Fighter
Amity – Disputed Space/Skye-Marik Rift
ImStar Aerospace – Cheetah, Defender Fighter
Keystone – Disputed Space/Atrean Corridor
Earthwerks – Stinger, Phoenix Hawk, Griffin, Thunderbolt, Battlemaster, Thug
Exeter – Pegasus Tank
Dover – Disputed Space/Draconis Rifts
Wakazashi – Sholagar, Slayer Fighters
Hinsdale – Condor DropShip
Togura – Disputed Space/Draconis Rifts
Togura Shipyards – WarShips (or JumpShip Repair Yard)
Yorii – Disputed Space
Luthien Armor Works – Dragon
Old Free Worlds League
Marik Commonwealth
Atreus – Marik Commonwealth
Imstar Aerospace – Cheetah, Eagle (d. 2811) Fighter
Deller Bingham Fouts – Gazelle, Mammoth DropShip
Connaught – Marik Commonwealth
Kong Interstellar – Ostsol, Ostscout, Black Knight
Irian – Marik Commonwealth
Iran BattleMechs – Hermes, Hermes II, Trebuchet, Awesome
Brooks Incorporated – Galleon, Harasser Tank
Imstar Aerospace – Corsair Fighter
Marik – Marik Commonwealth
Imstar Aerospace – Cheetah, Planetlifter
Stewart – Marik Commonwealth
Corean – Locust, Trebuchet, Goliath, Icarus II
Allied Technologies – Gotha Fighter
Bernardo – Marik Commonwealth
Kallon Industries – Crusader (May not be in Production)
Earthwerks – Flea
Loyalty – Marik Commonwealth
Kallon Industries – Partisan Tank, Vengeance DropShip
Selasys Inc. – Star Lord JumpShip
Capolla Union
Oliver – Capolla Union
Brigadier – Griffin, Crusader
Quickcell – LRM Carrier, SRM Carrier
AeroFighter Unlimited –
Procyon – Capolla Union
Brigadier – Facility Unused
Alula Australis – Capolla Union
Technicron – Quickdraw, Awesome
Carver V – Capolla Union
Brooks Incorporated – Ironsides Fighter
Duchy of Andurien
Andurien – Duchy of Andurien
Andurien AeroTech – Transit, Stingray, Riever (2815) Fighter, Intruder DropShip
Brooks – Galleon, Thumper Tank
Lopez – Duchy of Andurien
Andurien AeroTech – Stingray, Riever Fighter, Angel Strike Fighter
Shiro III – Duchy of Andurien
Irian BattleMechs – Wasp, Hermes II, Stalker, Quickdraw
Grumman – Ontos Tank
Federation of Oriente
Calloway VI – Federation of Oriente
Earthwerks – Stinger, Shadow Hawk, Archer
Dalton – Federation of Oriente
Nimakachi Fusion – Condor DropShip
Emris – Federation of Oriente
StarCorps – Longbow
Principality of Regulus
Wallis – Principality of Regulus
Ronin – Warhammer, Marauder
Cameron – Principality of Regulus
Free Worlds League Industries – Wasp, Archer
Tiber – Principality of Regulus
Gilbert Sachs & Belafonte – Paramour Mobile Repair Vehicle (d. 2nd SW)
Wanker Aerospace – Corsair Fighter (d. 2nd SW)
League of Gibson
Clipperton – League of Gibson
Irian Technologies – Leopard, Leopard CV, Union DropShip, Scout JumpShip
Gibson – League of Gibson
Gibson Federated – Locust, Cicada, Wolverine, Marauder
Brigadier – Fury, Buccaneer, Monarch DropShip
Karachi – League of Gibson
Brigadier – Griffin (May not be in Production)
MacKenzie – League of Gibson
Brigadier – Behemoth DropShip
Tematagi – League of Gibson
Nimakachi Fusion – Spider, Vulcan, Warhammer
Kendall Parish
Kendall – Kendall Parish
Kali Yama – Orion
Brooks – Galleon
Westover – Kendall Parish
Andurien AeroTech – Stingray, Riever Fighter
Free Worlds Defense Industries – ‘Mech Factory of some sort
Duchy of Tamarind
Tamarind – Duchy of Tamarind
Technicron – Invader JumpShip
Trellisane – Duchy of Tamarind
Gutierrez Aerospace – Stingray
Thermopolis – Duchy of Tamarind
Kallon Industries – Wolverine, Rifleman, Exterminator
Lyran Commonwealth
Alarion – Lyran Commonwealth
Ioto Galactic – Scout, Invader, Monolith JumpShip
Bowie Industries – Archer, Leopard, Leopard CV, Union DropShip
Vendrell – Lyran Commonwealth
Mountain Wolf BattleMechs – Nighthawk, Sling (Wrecked in 2945)
(Carlisle – Lyran Commonwealth
Bowie Industries – Archer, Marauder, Pack Rat Tank) – Company didn’t expand here during the Succession Wars.
Furillo – Lyran Commonwealth
Tosland WarWorks – Locust, Wasp
Donegal – Lyran Commonwealth
Lockheed CBM – Lucifer, Sabre, Centurion Fighter
Gibbs – Lyran Commonwealth
Lockheed CBM – Eagle, Thunderbird Fighter
Ioto Galactic – Merchant JumpShip (May not be in production here)
Tharkad – Lyran Commonwealth
Tharkad Aerospace – Intruder, Fortress, Behemoth DropShip
Lockheed CBM – Lightening, Hellcat Fighter, Monarch DropShip
Semier Data Tron – Seeker, Fortress, Excalibur DropShip
Bauer Enterprises – Rapier Fighter
Republic of Coventry
Coventry – Republic of Coventry
Coventry Metal Works – Stinger, Commando, Vulcan, Phoenix Hawk
(May also build a host of older RetroMechs)
Loxley – Republic of Coventry
Norse Technologies – Devastator, Spector, Thunderhawk (Ruined Facility that needs Refurbishment)
Norse Technologies/GM – Nightstar (Ruined early in the 1st Succession War)
Blue Shot Weapons – Starslayer (Ruined Facility that needs Refurbishment)
Federation of Skye
Kalidasa – Federation of Skye
Kai Yama – Wasp, Trebuchet, Hunchback, Orion
Quickcell – Hezter, Scorpion
Kessel – Federation of Skye
Diverse Optics – Lasers
Wyatt – Federation of Skye
Bowie Industries – Archer, Chippewa Fighter
Hesperus II – Federation Skye
Defiance Industries – Griffin, Archer, Zeus, Banshee, Atlas, Wasp, Stinger, Sentinel, Chameleon, Hunter, Manticore, Avenger DropShip (Can build Flashman)
Doering Electronics - Manufactures military Communicator & Sensor Suites, Neurohelments. One of the only major manufacturers of Combat Neurohelmets in the LC
Stormvanger Assembly – Falcon
Skye – Federation of Skye
Shipil Company – Seydlitz Fighter, Overlord DropShip
Maxim Transport Industries – Maxim HoverTank
Argile Technologies - Firestarter
Gienah – Federation of Skye
Gienah Combat Vehicles – Wheeled APC, Heavy Wheeled APC, Centipede Scout, Pack Rat (May not be in Production here)
New Kyoto – Federation of Skye
Used to have large Shipyards in the system
Skondia – Federation of Skye
Heavily Industrialized with many factories
Solaris VII – Federation of Skye
Blue Shot Weapons – Lynx (d. 2928)
Marcus – Federation of Skye
Orguss Industries – Stinger, Wasp, Phoenix Hawk (d. 2nd SW)
Hyde – Federation of Skye
Zettle Metals Inc – Three foundries on the planet. Pre-dates the Terran Alliance and specializes in rare metals needed to construct ‘Mech chassis
Duchy of Bolan
Senftenberg – Duchy of Bolan
Contained factories in the Cavez Valley – Cyclops and/or Zeus
Loburg – Duchy of Bolan
StarCorps – Longbow
Tamar Pact
Pandora – Tamar Pact
Red Devil Industries – (Rifleman, Battlemaster, Pegasus – Not in production) Condor, Centipede Tank
Quickcell – Scorpion, LRM Carrier, SRM Carrier
Tamar – Tamar Pact
Harrow-Deerfield Heavy Industrial Works – Lumberjack, IndustrialMechs (Wrecked in 2820)
Sudeten – Tamar Pact
Olivetti Weaponry – Thunderbolt, Warhammer, Hunter, J. Edgar Tank (Built on Ruins of the original Factory owned by Ford Military Limited. Original factory complex was a sprawling site much larger than this one.)
Trellshire Heavy Industries – Sturmfeur, Demolisher Tank
Rim Republic
Twycross – Rim Republic
Trellshire Heavy Industries – Rifleman, Battlemaster, Stalker
County of Erdvynn
Son Hoa – County of Erdvynn
StarCorps – Longbow, Highlander, Emperor (Nuked in 2nd Succession War)
Grand Duchy of Alexandria-New Wessex
Yed Posterior – Grand Duchy of Alexandria-New Wessex
Maintained a BattleMech Factory until 2789
Alexandria – Grand Duchy of Alexandria-New Wessex
Maintained some sort of Military Facilities
Kirkcaldy – Grand Duchy of Alexandria-New Wessex
Pitban Fusion – Fusion Engine Plant
Inarcs Free Zone
Inarcs – Inarcs Free Zone
Blackstone Industries – Conventional Vehicles
Finmark Ascendancy
Kwangjong-Ni – Built Rampage, but destroyed in 2767. Later rebuilt to construct the Mongoose II – could be a decent site for another low-tech factory.