The AI Stack
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The directory

Companies

Every company building a layer of the AI stack — searchable, filterable, and cross-referenced against investors and roles.

565Tracked
CompanyLayerOwnershipPrimary patternStage
01.AIL4 Models & TrainingPrivate—Growth
11xL6 Applications & ProductsPrivate—Speculative
1upL6 Applications & ProductsPrivate—Speculative
Abnormal SecurityL6 Applications & ProductsPrivate—Growth
AbridgeL6 Applications & ProductsPrivate—Growth
AccelsiusL0 Physical InfrastructurePrivate—Growth
ActiveloopL3 Data & StoragePrivate—Speculative
AdeptL6 Applications & ProductsAcq. by publicAmazon—Speculative
Adept AIL5 Orchestration & FrameworksAcq. by publicAmazon—Speculative
Adobe FireflyADBEL6 Applications & ProductsPublicADBE—Dominant
Adobe Inc.ADBEL6 Applications & ProductsPublicADBE—Dominant
Advanced Semiconductor Engineering, Inc.ASXL1 Silicon & ComputePublicASX—Dominant
Aerospike, Inc.L3 Data & StoragePrivate—Growth
AFORMICL6 Applications & ProductsPrivate—Speculative
AgentMailL5 Orchestration & FrameworksPrivate—Speculative
AgentOpsL5 Orchestration & FrameworksPrivate—Speculative
AGILOX Services GmbHL6 Applications & ProductsPrivate—Growth
AgnoL5 Orchestration & FrameworksPrivate—Speculative
AI21 LabsL4 Models & TrainingPrivate—Growth
AiderL6 Applications & ProductsOther—Speculative
Aigo.ai IncL6 Applications & ProductsPrivate—Growth
AirbyteL3 Data & StoragePrivate—Growth
AirOpsL6 Applications & ProductsPrivate—Dominant
AlgorithmiaL4 Models & TrainingPrivate—Growth
Alibaba CloudBABAL2 Cloud & VirtualizationPublicBABA—Growth
Aligned Data CentersL0 Physical InfrastructurePrivate—Growth
Allen Institute for AI (Ai2)L4 Models & TrainingOther—Growth
Alloy EnterprisesL0 Physical InfrastructurePrivate—Growth
Alphabet Inc.GOOGLL2 Cloud & VirtualizationPublicGOOGL—Dominant
Amazon Web ServicesAMZNL2 Cloud & VirtualizationPublicAMZN—Dominant
AMDAMDL1 Silicon & ComputePublicAMD—Growth
American Real Estate Partners (PowerHouse Data Centers)L0 Physical InfrastructurePrivate—Growth
Amigo AIL5 Orchestration & FrameworksPrivate—Speculative
Amkor TechnologyAMKRL1 Silicon & ComputePublicAMKR—Dominant
AnagramL6 Applications & ProductsPrivate—Speculative
AnthropicL4 Models & TrainingPrivate—Dominant
AnyscaleL5 Orchestration & FrameworksPrivate—Growth
Apple SiliconAAPLL1 Silicon & ComputePublicAAPL—Dominant
Applied IntuitionL6 Applications & ProductsPrivate—Growth
APR EnergyL0 Physical InfrastructurePrivate—Growth
AquantL6 Applications & ProductsPrivate—Speculative
ArcadeL6 Applications & ProductsPrivate—Growth
Arcee AIL4 Models & TrainingPrivate—Speculative
ArgillaL3 Data & StoragePrivate—Speculative
ArgyleL6 Applications & ProductsPrivate—Growth
Arista NetworksANETL1 Silicon & ComputePublicANET—Dominant
Arize AIL5 Orchestration & FrameworksPrivate—Growth
Astera Labs, Inc.ALABL1 Silicon & ComputePublicALAB—Growth
AtaccamaL3 Data & StoragePrivate—Growth
Augment CodeL6 Applications & ProductsPrivate—Speculative