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Born of ice, iron, and unyielding faith, the Mammuts stand as a fortress of flesh and steel amidst the howling blizzards of the Emperor’s eternal war. Forged in the crucible of the 23rd "Sentinel" Founding, they trace their lineage to the stoic bloodline of the Imperial Fists. A legacy of defiance and endurance that runs as cold and unbreakable as the glaciers of their homeworld. Where others falter in frost and shadow, the Mammuts advance, their ceramite clad forms wreathed in the breath of winter, their hearts burning with the stubborn light of the Emperor’s will.

On the battlefield, the Mammuts wage war as an avalanche given purpose. They favor the brutal efficiency of armored columns, the thunderous advance of Land Raiders, Predators, and Terminator clad veterans who grind the enemy beneath their treads. Each campaign is conducted with the cold precision of siegecraft and the patience of the long frost, for the Mammuts are masters of both attrition and endurance. In the frozen wastes they call home, they have learned that victory is not won by speed, but by survival, by outlasting both the foe and the storm.

Yet beneath their steel discipline lies a quiet melancholy, a weariness that only those born of the Fists can know. The Mammuts fight not for glory nor recognition, but because duty demands it. They are the Emperor’s beasts of burden, carrying the weight of war across tundra and time alike. In their solitude among the snow and the silence, they have come to see the cold not as an enemy, but as a brother, a harsh teacher reminding them that endurance is the truest form of devotion. To be a Mammut is to stand unbroken, even when the galaxy itself freezes over.

Chapter History[]

overview

the chapter was born in the chaos of M38 and established to aid Imperium's defences in many vulnerable fronts, and to secure the many cold and harsh planets. through the chapter has been the subject of many hardships and tragedies, they have Remained strong for the past 4000 years, and will continue Standing Until the last Breath, of the last member.

M38 - founding and early period
Born of the turbulent times of M38, the chapter was formed quickly from New recruits and volunteers from the imperial fist, this time was spent mostly standing guard, with no true combat, aside from Marauding bands of night lord, and minor conflicts with the Aeldari

M39-41 - interbellum
this period saw more conflicts with the Aeldari, in late M39, to early M40, until a wave of Night lords raids, called them else where, the culmantion of these battles, was Siege of Typhon’s Vein, which was nearly a devastating defeat, with the death of the chapter master, multiple captains, and the master chaplain in the battle

745.M41 - first tyranic war
desipte Wrengel not falling in to the path of the hive fleet, the Mammuts where still called to action to fight across multiple frozen worlds

M42 - current chapter status
the chapter is currently locked in battle with a entire night lords warband across multiple worlds

Notable Campaigns[]

  • Siege of Typhon’s Vein, 513.M41
    Upon the world of Gaie, A Night lords stronghold laid, Raiding and Raising near by star systems, the Mammuts Moved to attack the stronghold, during the early phases of the attack, lucky favored the Mammuts securing positions near the stronghold, and even attacking it with siege guns, until a storm of Warp and thunder Arose, and from it, A Flock of helldrakes, Seven unholy beasts, Causing havoc among the Mammuts, Casualties were among the hundreds, With even the Chapter master, Master chaplain, and Captain of the 2nd and 5th company’s being lost in battle, eventually reinforcements from the Hawk Lords and Sons of Ares chapters, the stronghold was captured and it defenders executed, but at a cost
  • battle of frigiddos, 745.M41
    the world of frigiddos was among the worlds in the path of hive fleet Behemoth, the Mammuts were called to defend due to their artic warfare abilities, the battle was long and fraught with many casualties, but eventually it was won

Chapter Homeworld[]

The world of Wrengel is a desolate tomb of ice and oil, a frozen ocean world where the sun is a distant, dying ember, and the wind itself howls like the ghosts of the forgotten. Vast ice sheets stretch for thousands of kilometers, shifting and cracking with the weight of ages, their depths concealing oceans black as the void. What little solid land exists is scattered in broken archipelagos, ragged islands of rock and rust where humanity clings to life in steel warrens and industrial bastions. To the unacclimated, Wrengel is death incarnate; to the Mammuts, it is home.

The beating, poisonous heart of Wrengel lies in Muskov, the largest settlement upon the planet and a city more akin to a mining fortress than a true hive. Built upon the edge of a churning promethium sea, its countless rigs and extraction towers claw into the planet’s frozen crust, vomiting smoke and flame into the air as they draw lifeblood from beneath the ice. The people of Muskov live and die by the machine, their lives measured in shifts and rations, their prayers offered to the Emperor through the rumble of refineries. In this place, the line between man and servitor blurs. Both are bound to labor, both are shaped by cold, purpose, and exhaustion.

It was from this crucible of endurance that the Mammuts arose, their flesh hardened by frost, their faith tempered in the fire of industry. The Chapter maintains its fortress-monastery deep within the ice fields north of Muskov, carved into a glacier the size of a continent and buried beneath kilometers of frozen sea. There, amid endless storms and groaning ice, the Mammuts find communion with the Emperor through suffering and survival. To them, Wrengel is not a curse but a reflection, a mirror of the galaxy’s cruelty and the Imperium’s persistence. The world does not forgive weakness, nor do its sons.

Fortress-Monastery[]

The fortress-monastery of Kolymskaya drifts upon the endless white, an eternal citadel afloat on a continent of living ice. To call it immovable would be folly, for the glaciers of Wrengel know no stillness, and even the Emperor’s bastions must yield to the slow, grinding march of nature’s will. Built atop the thickest of Wrengel’s ice sheets, measured to be 33.21% denser than any other known floe, the fortress stands as both a marvel of Imperial engineering and a monument to futility. No matter its fortitude, the ice beneath it moans and shifts, dragging the mighty monastery across the planet’s surface like a drifting colossus, bound forever to wander.

Kolymskaya’s walls are a blend of stone, ceramite, and frozen steel, layered in frost and hymn, scripts that glimmer faintly under the pale light of Wrengel’s dying sun. Its grand halls echo not with choir song but with the groan of pressure and the thunder of distant calving glaciers. The Chapter’s war machines sleep in vaults of ice, their engines kept alive by the constant labor of Techmarines who wage ceaseless war against entropy and cold. Within the fortress, chaplains preach endurance as both weapon and prayer, for on Wrengel, even faith must freeze to endure. The Mammuts revere their moving monastery not merely as a home, but as a pilgrimage. It is a reminder that no bastion, no brother, and no empire is truly still in the face of time.

Yet despite its impermanence, Kolymskaya endures. Its drifting course is tracked with reverence, each new resting place marked and recorded as sacred ground, each fissure and collapse read as omen. When the fortress passes over the black veins of promethium far below, the Mammuts descend in armored processions, seeing in the planet’s molten lifeblood a reflection of their own, burning bright beneath the surface of the cold. In Kolymskaya’s shifting shadow, they find their truth. Strength lies not in roots or walls, but in the will to march ever forward, even as the ice beneath them cracks and the stars above grow dim.

Chapter Organization[]

Officer Ranks[]

  • Chapter Master - The Chapter Master serves as lord and commanding officer of the Chapter, this position has only been held by Many Great leaders over the past ten millennia, Currently this Position is held by Lider kulak
  • Captain - they hold the honor of Leading a company
  • Lieutenant - 2 per Company, they act as battlefield command, Leading battleline units

Specialist Ranks[]

  • Chaplain - Spiritual and discipline officer, who keeps in check the purity of the Chapter
    • Master Chaplain - Reclusiarch equivalent, the most-senior of Chaplains.
    • Aedile - Keeper of the relics of the Reclusiam and of the traditions of the chapter
  • Libarian The Librarian is a combat psyker specialist trusted to handle the Warp in the benefit of the Chapter cause
    • Master Librarian - Chief Librarian equivalent, the senior-most and most powerful of the Chapter's librarians.
  • Techmarine - The role of a Techmarine is to keep and maintain Chapter weaponry and motor pool
    • Master of the Forge - Senior-most Techmarine.
  • Apothecary - Specialist trained about the Astartes physiology. An Apothecary not only serves as a field medic but is also charged to recover the precious gene-seed from the fallen
    • Master Apothecary - Chief Apothecary equivalent.
  • Company Ancient - Charged with holding the banner of his company, attached to a command squad.
    • Chapter Ancient - Charged with holding the Banner of his chapter, usually accompanying the chapter master.


Line Ranks[]

  • Veteran Sergeant - The leaders of terminator and Centurion Squads
  • Veteran Battle-Brother - The mainly seen in Terminator and Centurion Squads, in addition they make up most of a command squad.
  • Sergeant - The head of a squad, they are responsible to carrying out orders from their superiors.
  • Battle-Brother - The bulk of each Company, a Battle-Brother is expected to fulfill various roles.


Specialist Units & Formations[]

Order of Battle[]

Headquarters[]

Headquarters
Mammuts Armorial

Chapter Master

Command Squad
Chapter Ancient
15 veterans

Apothecarion Armoury Chaplaincy Librarius
Sor ten
Master Apothecary


50 Apothecaries
30 Servitors
60 Serfs


Sor ten
Master of the Forge


50 Techmarines
25 Tech-Priests
30 Servitors
100 impulsor
100 rhino
70 gladiator
70 land raider
50 Predator
50 Repulsor
50 storm speeder
10 thunder hawk gunship

Sor ten
Master Chaplain

50 chaplain
20 Aediles
60 Serfs

Sor ten
Master Librarian

50 librarians
60 Serfs


Companies[]

Companies
Veteran Company Battleline Companies
1st Company 2nd Company 3rd Company 4th Company 5th Company
Sor one

Captain

Honored-Captain

2 Lieutenant

Command Squad

10 Honour Guard

80 veterans

10 Close Support

10 Fire Support

6 Dreadnoughts

Transports

Sor two
Captain

Captain

2 Lieutenant

Command Squad

50 Battleline

20 Close Support

20 Fire Support

10 veterans

3 Dreadnoughts

Transports

Sor three
Captain

Captain

2 Lieutenant

Command Squad

50 Battleline

20 Close Support

20 Fire Support

10 veterans

3 Dreadnoughts

Transports

Sor four
Captain

Captain

2 Lieutenant

Command Squad

50 Battleline

20 Close Support

20 Fire Support

10 veterans

3 Dreadnoughts

Transports

Sor five
Captain

Captain

2 Lieutenant

Command Squad

50 Battleline

30 Close Support

10 Fire Support

10 veterans

3 Dreadnoughts

Transports

Reserve Companies Scout Company
6th Company 7th Company 8th Company 9th Company 10th Company
Sor six
Captain

Captain

2 Lieutenant

Command Squad

50 Battleline

20 Close Support

20 Fire Support

10 veterans


3 Dreadnoughts

Transports

Sor seven
Captain

Captain

2 Lieutenant

Command Squad

50 Battleline

30 Close Support

10 Fire Support

10 veterans


3 Dreadnoughts

Transports

Sor eight
Captain

Captain

2 Lieutenant

Command Squad

50 Battleline

30 Close Support

10 Fire Support

10 veterans


3 Dreadnoughts

Transports

Sor nine
Captain

Captain

2 Lieutenant

Command Squad

50 Battleline

30 Close Support

10 Fire Support

10 veterans


3 Dreadnoughts

Transports

Sor ten
Captain

Captain

2 Lieutenant

Command Squad

40 Battleline

40 Close Support

20 Fire Support



2 Dreadnoughts

Transports

Chapter Recruitment[]

The toughest of the tough
the Mammuts only select the best candidates, but even they are weeded out by harsh training, for 20 hours a day, the candidates train, until they leave, or die of exhaustion, at the end of this brutal training, the candidates receive the gene-seed and other implants to turn them in to a full fledged space marine, upon which they on to the next trial

the frozen march
Three days after the now a aspirant receive their gene-seed, then are sent on a march, in nought but pants, to the top of Ogon, the highest point of Wrengel, they march to this point nearly alone, aside from Apothecaries, to recover the gene-seed from the dead, nearly half of those who march die, but those do survive, are granted respite upon the aerial transports waiting for them, and they move to the final trial

The New, honor the dead
the final trial, is not one of brutal hardship, but of oaths to those who have fallen, the aspirant must spend three days within the Hall of Bone, medataing and Reading the name of those who fallen, and their deeds
when the aspirant emerges from the Hall of Bone, they are asked to recite as many names as they can, all the Recited names are marked on a purity seal, which is then stamped to their chest, as a promise to have their names live on in the heat of battle
when the Recital is complete, the aspirant is officially inducted in to the chapter

Chapter Beliefs[]

The Mammuts beliefs hail from both the worship of the emperor, and the culture of their homeworld, intertwining the two belief's in to their chapter.
But the most simplest belief of the mammuts is the "Unending March", that the Mammuts can not truely rest until there are no more enemies of mankind, they fight until there is no more battle's to fight.

"Living Relic's, the Mammut Primus"
the Mammuts hold the "Mammut Primus", to be sacred, Revere them as living relics, embodiments of the Emperor’s will in nature’s form.
as such they are protected by the chapter, and if one where to fall, its tusks are recovered and enshrined within Kolymskaya’s Hall of Bone

"Hall of bone"
the Hall of Bone is where all tusks recovered from fallen Mammuts, sitting as a long hall beneath the Fortress-Monastery, each tusk carved with the name's of the fallen, the hall of bone is the only place where a Brother of the Mammuts chapter would rest, with the hall being of meditation and reflection, where any brother may come.

Chapter Gene-Seed[]

The Mammuts, gene-seed is consistent genetically, with that of other Chapters from the lineage of Rogal dorn. with minor contamination, it reproduces stably, and produces the full range of Space Marine organ implants. though they emphasize recovery of all of a fallen brother, instead of Just Gene-speed, Recoveries made in the field are secured upon the nearest Chapter vessel in short order, and then returned to their homeworld for Proper burial at the earliest possible opportunity. Currently, records indicate that the Chapter is sufficiently well supplied with gene-seed to accommodate even their prodigious needs

Genetic Flaws[]

Oolitic Secretions
the Chapter's oolitic kidney function has a genetic deformity, which disforms The oolitic secretions, responsible for skin pigmentation, have resulted in unusually pale, nearly white, skin

Combat Doctrine[]

the Mammuts make use of armored warfare, using their tanks to break their enemies lines, before storming them, along with being speicalized for artic warfare, with Cold-Reinforced ceramite and systems tuned to function at the deepest of colds

Notable members of the Mammuts[]

  • Lider Kulak - Lider Kulak is a man carved from ice and fire, an embodiment of Wrengel itself. Once the Captain of the First Company, Kulak’s rise was not marked by ambition, but by the cold inevitability of endurance. When Udar Sokrushitel’nyy, his predecessor, fell in the Siege of Typhon’s Vein, buried beneath the molten remains of his own Land Raider, Kulak was the only one who stood unbroken amidst the ruin. His brothers found him there, armor cracked and bleeding promethium, still firing his storm bolter into the smoke long after the enemy had fled. The Chapter’s senior council saw in him not brilliance, but unyielding purpose, a leader who would not falter, no matter the storm.

    In battle, Kulak wears a heavily modified suit of Centurion warsuit armor, a relic of grim pragmatism that mirrors his nature. The machine has been refitted for arctic warfare, its plating reinforced with frost reactive ceramite and its systems tuned to function even in the coldest reaches of Wrengel’s abyssal plains. To see Kulak stride across the battlefield is to witness an avalanche given form, each step a thunderclap, each shot a proclamation of finality. He does not fight with the precision of a duelist, but with the inevitability of erosion, slow, grinding, and unstoppable. His warriors say that when Kulak marches, the enemy does not see a man, but the will of the Emperor encased in steel.

    Yet beneath that mountain of armor lies a man wearied by duty. Kulak is not a roaring lord of war, but a quiet sentinel, his voice low, his words measured. He spends long hours in the solitude of Kolymskaya’s Hall of Frost, standing before the frozen statues of the fallen, his breath misting against their ice shrouded visages. Those who serve closest to him speak of a leader who carries every loss as if it were carved into his bones. He does not seek victory for glory’s sake, nor vengeance for pride. To him, war is an endless winter, one that must be endured, not celebrated. His calm, glacial demeanor masks a depth of sorrow few could comprehend, for he knows that even the mightiest glacier melts, given time.

    Under Lider Kulak’s leadership, the Mammuts have grown slower, more deliberate, and infinitely more unbreakable. He teaches his brothers that endurance is not the absence of pain, but the mastery of it. His reign has seen no grand crusades nor shining triumphs, only survival, the quiet, grinding victory of those too stubborn to die. To the wider Imperium, he is a nameless warlord of an ice world few could find on a star map. But to his Chapter, Lider Kulak is Wrengel’s will made manifest, a cold, unyielding truth that neither age, nor war, nor the long night of the galaxy can ever truly silence.
  • Master Chaplain, Erast Ieronim - Erast Ieronim is a man forged from the solitary belief of wrengel, A beacon of the emperors light. Once among chaplains of the first company, Ieronim’s rise was marked by Zeal, and determination. When Udar Sokrushitel’nyy fell in the Siege of Typhon’s Vein, he gathered the scattered forces through belief, leading A counter attack, He was among those who found the molten remains of his chapter master’s land raider, ieronim held guard for 7 hours while the apothecaries Recovered Kulak. After the battle, and Due to More unfortunate Events, He was elevated to Position of Master Chaplain, He vowed to Never let Another Chapter Master die, So He stands with Kulak at a All times, a defender who would not falter, In battle or belief, no matter the cost.
    In battle, ieronim wears a. Modified suit of indomitus dreadnought plate, with reinforced shield generators, and improved joints in the armor to allow better mobility and Carry capacity, adorned with religious icons, He is a walking shield to protect his master, a beacon of light in a dark field, his presence bleeds both fear and belief, inspiring his Allies, and intimidating his foe’s.
  • Captain of the 1st Company, Danili orudiynyi -
  • Captain of the 7th Company, Igor Zenovv -
  • Captain of the 10th Company, Yuri Vyacheslav -

Chapter Fleet[]

  • Battle Barges
    • Lednik Mk.2 battle barge, lednik is the flagship and the largest ship of the Mammuts Battlebarge's, named for one of the largest ice floe's on wrengel, the lednik has seen more combat then any other Battlebarge of the Mammuts, being the ship at the head of most vanguard forces
    • Ogon' Mk.1 battle barge, ogon' is the battlebarge of the Mammuts Battlebarge's, named for the highest peak on wrengel, the ogon' is used for a command role, being the ship that transports the chapter master and his Entourage
    • Vellikcan Mk.1 battle barge, ogon' is the battlebarge of the Mammuts Battlebarge's, its name come from the local name for the dying star which keeps wrengel from being a black void, usally accompanying, the ogon', the Vellikcan is a secondary command ship and the chapter master war-guard


  • Strike Cruisers
    • Stsilla (strike cruiser)
    • Gidra (strike cruiser)
    • Kharibda (strike cruiser)
    • zmeya (strike cruiser)
    • krivizna (strike cruiser)
    • selezen' (strike cruiser)
    • Potemkin (praetoria class)
    • Navarin (praetoria class)
    • Rostislav (praetoria class)
    • Peresvet (praetoria class)
    • Avrora (praetoria class)
    • Varyag (praetoria class)
  • Escorts
    • drakon (Hunter-class Destroyer)
    • monstr (Hunter-class Destroyer)
    • verolomnyy (Hunter-class Destroyer)
    • chelovek (Hunter-class Destroyer)
    • pytorr (Nova-class Frigate)
    • ivanis (Nova-class Frigate)
    • Alekssanndr (Nova-class Frigate)
    • Sofiyyae (Nova-class Frigate)
    • Marivia (Nova-class Frigate)
    • Nikkolaii (Nova-class Frigate)
    • Vaedimiir (Nova-class Frigate)
    • Valeentiin (Nova-class Frigate)
    • Adriiann (Nova-class Frigate)
    • Alekxseii (Nova-class Frigate)


Chapter Relics[]

  1. gromovoye plamya is the Unique power fist used by lider Kulak, it Appearance is that of flaming hammer attached to his fist, said to turn his enemies to ash. and their Vehicles to slag, with a thunderious boom, that can heard for miles around, forged in the flaming heart of Kolymskaya, it strikes fear and awe in all who whitness it in combat


Chapter Appearance[]

Chapter Colours[]

The color scheme of the Sons of Ares Is yellow and white, white is the most prominent armor, with yellow covering the shins and shoulder trim There colour variations in the helmet to distinguish ranks are as such:

Helmet Markings

  • Sergeant: white Helmet
  • Veteran: yellow helmet, white strip
  • Veteran Sergeant: white helmet, yellow strip
  • Lieutenant: black helmet, whitestrip
  • Captain: black helmet, gold strip

Along with colour variations in the helmet to distinguish ranks, A color system is used for distinguishing companies, this is usually applied to right shoulder trim:

  • 1st Company: Yellow
  • 2nd Company: Red
  • 3rd Company: Orange
  • 4th Company: Black
  • 5th Company: Green
  • 6th Company: (Light) Blue
  • 7th Company: Blue
  • 8th Company: Purple
  • 9th Company: Gray
  • 10th Company: White

Chapter Badge[]

The Mammuts bears the image of two massive tusks, those of the ancient Wrengelan mastodon, crossed in solemn defiance. Each tusk curves with brutal elegance, their etched surfaces marked by age, frost, and reverence. To the unknowing, it is a simple sigil, a symbol of strength and endurance. But to the Mammuts, it is sacred. The tusks represent not merely the beasts that once roamed their frozen world, but the spirit of Wrengel itself, cold, patient, and unyielding. Where other Chapters might display swords, fists, or flames, the Mammuts wear the memory of survival, the quiet might of something that endures the storm long after all else has perished.

The mastodon from which the Chapter takes its mark, known locally as the Mammut Primus, is one of the last living native species on Wrengel, a titanic creature that wanders the ice plains in solitary pilgrimage. The Mammuts revere these beasts as living relics, embodiments of the Emperor’s will in nature’s form. It is said that when a mastodon finally falls to the cold, its tusks are recovered by the Chapter’s Reclusiam and enshrined within Kolymskaya’s Hall of Bone, where each is etched with the names of the fallen. Thus, the Chapter’s badge is not merely an emblem of identity, it is a promise, a mourning, and a prayer carved into every pauldron.

When a Mummut marches to war, the crossed tusks gleam faintly beneath frost and oil, a reminder that strength is not found in fury, but in endurance. Each warrior who bears the sigil does so with the weight of Wrengel’s silence behind him, the echo of wind over endless ice, the memory of beasts long dead yet unforgotten. To wear the tusks is to accept the burden of survival, to stand as the last and the unbroken when all warmth has faded. The Mammuts do not roar their defiance, they endure it, as their ancestors and their sacred beasts have since time immemorial.

Relations[]

Allies[]

Enemies[]

Name
Iconography
Notes
Night Lords
NightLords
the night lords have long been a major enemy of the mammuts, with consistent battles and skirmishes, but the Siege of Typhon’s Vein, was the killing blow, the death of their chapter master at the hands of the night lords and their unholy beasts, drove a hate for the night lords in to the heart of every Mammut.

Notable Quotes[]

By: The Mammuts[]

About: The Mammuts[]

Imperial Fists Successor Chapters (Last Wall)
2nd Founding Dawn TemplarsDeath Templars
3th Founding Astral PaladinsBlack MastodonsCrimson RobesImperial SentinelsImperial TemplarsIronclad TemplarsPhrygian KnightsRevealersStone FistsWardens of Annihilation
4th Founding Argent WardensBolts of DornFists RevenantGatekeepersGauntlets of DornHost of AiakidesIron MyrmidonsKnights of TerraMortiferous ShadesRebutorsSilver ShardsSons of the EmperorTeeth of the StormTempest KnightsVoid Vultures
5th Founding Sentinels of DornSteel Angels
6th Founding Praetorian Revenants
7th Founding Sons of Zeus
8th Founding Ash ScorpionsBears of KalumCrusaders InexorableSable LionsThunder Guardians
9th Founding
10th Founding Lions of BabylonRevenant CrusadersVoid Templars
11th Founding Exalted BladesSkull Takers
12th Founding Blades of DornLyran GuardTerra's Hammers
13th 'Dark' Founding Dawnstar Templars
14th Founding Tempest AbsolversTemplars Moline
15th Founding RedemptorsStorm Fists
16th Founding Praetorians
17th Founding Blades of Resurgence
18th Founding Faithful Shields
19th Founding Knights of Sol
20th Founding
21st 'Cursed' Founding Abyss GazersDune StalkersFrost ClawsHonour MaulsLords of MetalMolten FistsShield BearersThunderboot Grenadiers
22nd Founding Dawn Stalkers
23rd 'Sentinel' Founding Aegis WardensAngels of Desolation • † Astral DrakesBrotherhood of the SwordCeaselessConquistadorsDoom FistsEternal PaladinsIron GuardMammutsNemean LionsPlatinum SoulsSeraphim VanguardStorm ZealotsSubjugators ErrantVigil MurisVoid Lions
24th Founding Knights AdamantMordekaisers
25th 'Bastion' Founding Blades of InwitCrimson DragoonsEternity InvictorsShenandoah KnightsStorm SentinelsVoidwardens
26th Founding Gray HussarsKnights of ThunderMourning WardensStormbreakers
Ultima Founding Blood Fist TemplarsCadian WallExactores ImperiiHammers of AntaeusImperial AssaultersIron ArbitersMaelstrom FistsPaladins of ThunderShadow WolvesSilver FistsSolar TitansSons of PraetoriaVoidwardensStorm MarchersWave Breakers
Unknown Foundings Bulls of RetributionCelestial StarsConsuls ExemplarCrimson ShadowsDiamondbacksEnlightened SonsEternal SlayersFatebinders of TyrGolden LionsHoly HospitallersHonour Bound BladesImperial WardensKnights of ArgentKnights of the FistMasonic MarinesNorthern LionsObsidian FistsProwlersRampant LionsRetributorsWarborn AngelsWinged Fists
Renegades Crimson SpearsKnights VigilantKnights of Va'alPraetorian MastersSons of Tyreme
[Source]


Twenty Third 'Sentinel' Founding Space Marine Chapters
Dark Angels Successors Adamantine KnightsAngels of SanctityAngels of the TyphoonDark RavensKnights of EternityLunar BladesMarian WardensRondo KnightsVengeful Lions
White Scars Successors Cobalt LeviathansDragons of SuzanooLightning WraithsMental ScarsScreaming SkullsSons of NeptuneSteel TigersThousand BladesWorld Marauders
Space Wolves Successors
Imperial Fists Successors Aegis WardensAngels of Desolation • † Astral DrakesBrotherhood of the SwordCeaselessDoom FistsEternal PaladinsIron GuardMammutsNemean LionsPlatinum SoulsSeraphim VanguardStorm ZealotsSubjugators ErrantVigil MurisVoid Lions
Blood Angels Successors Angel GuardArgent EaglesCrimson ShroudsHeralds AngelicKnights SanguineLamenters SanguineStormbornTemplars ArcanisTidebenders
Iron Hands Successors Astral FistsFerric BullsFists of the GorgonGilded KnightsPyre GuardsSilver HammersSteel CrusadersStorm Paragons
Ultramarines Successors Astra RomanaBraves and BoldsCosta Veraian's MightEbon ButchersEmperor's SentinelsGrey SteedsKnight's WatchMountain PatriarchsPraetorian GuardScarlet BladesScions of Sol AurumSpace NagaWar Angels
Salamanders Successors Astral VanguardsHaietlikKirin SolScarlet ConstrictorsShadow DragonsSons of Helios
Raven Guard Successors AccipitersThe AshenBlack PhantomsCerulean KnightsCorvus ClawsEmperor's NightmaresResurrectionistsStarforgersVoid BasilisksWinds of Fury
Chimeric Lineage Imperial Brothers of the Sword
Unknown Lineage Adamant WardensAegis RevenantsAngels of the TyphoonArachnid WarriorsThe AshenBlack WardensClaws of ArktosCondemnersConquistadorsCrimson HoundsFormican MaraudersHarbingers of TūHeralds of the StormIncursorsOnyx ExecutionersOrdinatorsPilgrims of Sanctus PenitentsSons of the NightSons of the VoidStar Angels • † Wolves of Acheron
Renegades Crimson ThunderersEmperor's TalonsGhast KnightsShadow ScourgesSons of Tyreme
[Source]