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.

440Tracked
CompanyLayerPrimary patternStage
01.AIL4 Models & TrainingRegional / EmergingGrowth
11xL6 Applications & ProductsSpeculative
Abnormal SecurityL6 Applications & ProductsSecurityGrowth
AbridgeL6 Applications & ProductsHealthcareGrowth
AccelsiusL0 Physical InfrastructureGrowth
ActiveloopL3 Data & StorageSpeculative
AdeptL6 Applications & ProductsAutonomous Coding AgentsSpeculative
Adept AIL5 Orchestration & FrameworksSpeculative
Adobe FireflyADBEL6 Applications & ProductsImage Generation & EditingDominant
Aerospike, Inc.L3 Data & StorageOperational & Multi-Model DBGrowth
AgentOpsL5 Orchestration & FrameworksSpeculative
AgnoL5 Orchestration & FrameworksMulti-Agent FrameworksSpeculative
AI21 LabsL4 Models & TrainingEnterprise LLMGrowth
AiderL6 Applications & ProductsCode Copilots & IDEsSpeculative
Aigo.ai IncL6 Applications & ProductsAutonomous Coding AgentsGrowth
AirbyteL3 Data & StorageGrowth
AlgorithmiaL4 Models & TrainingGrowth
Alibaba CloudBABAL2 Cloud & VirtualizationGrowth
Aligned Data CentersL0 Physical InfrastructureBuild-to-Suit / DeveloperGrowth
Allen Institute for AI (Ai2)L4 Models & TrainingOpen-Weight FrontierGrowth
Alloy EnterprisesL0 Physical InfrastructureGrowth
Amazon Web ServicesAMZNL2 Cloud & VirtualizationDominant
AMDAMDL1 Silicon & ComputeGrowth
American Real Estate Partners (PowerHouse Data Centers)L0 Physical InfrastructureGrowth
Amigo AIL5 Orchestration & FrameworksAI Assistant BuildersSpeculative
Showing 125 of 440
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