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One hundred sixty-five companies, and almost every one is a chokepoint somebody worries about. Browse by layer and notice how often the answer to 'who else makes this?' is nobody — that concentration is the single most important fact about this industry.

Start with these three

TSMC Where nearly everything on this site is physically made. ASML A literal monopoly at the very bottom of the stack. NVIDIA The company the whole build-out is denominated in.
All segments Chip Designers & SemisFoundry & PackagingMemorySemiconductor EquipmentEDA & IPServers & HardwareNetworkingPower & ElectricalCooling & ThermalData Center OperatorsUtilities & GenerationCloud & HyperscaleAI CloudAI Labs & SoftwareCapital & Investors

Chip Designers & Semis

18
AMDThe credible second source: Instinct GPUs, EPYC CPUs and the ROCm stack. Santa Clara, US AMD BT Biren TechnologyShanghai GPU designer rebuilt around export-compliant parts. Shanghai, CN Private BroadcomThe quiet giant of custom AI silicon and the switch chips inside every fabric. Palo Alto, US AVGO CT Cambricon TechnologiesChina's listed AI-chip champion and prime NVIDIA-substitution play. Beijing, CN Private CS Cerebras SystemsThe wafer-scale company: one chip per wafer, sold as systems and cloud tokens. Sunnyvale, US Private ET EtchedThe startup betting silicon permanence on the transformer architecture. Cupertino, US Private FU FuriosaAIKorean inference-chip designer that reportedly turned down Meta. Seoul, KR Private GR GraphcoreThe UK's IPU pioneer, now SoftBank's AI-silicon arm. Bristol, UK Private GR GroqDeterministic inference hardware from the engineer who started Google's TPU. Mountain View, US Private HU HuaweiChina's sanctioned giant: Ascend chips, CloudMatrix systems, CANN software. Shenzhen, CN Private IntelThe fallen incumbent betting everything on its 18A process and foundry turnaround. Santa Clara, US INTC MarvellCustom AI silicon and the electro-optics that carry data between racks. Santa Clara, US MRVL NV NVIDIAThe company the AI build-out is denominated in: GPUs, systems, networking and CUDA. Santa Clara, US NVDA QualcommThe mobile-silicon giant re-entering the data center for inference. San Diego, US QCOM RE RebellionsKorea's merged national AI-chip champion, fabbed by Samsung. Seongnam, KR Private SS SambaNova SystemsFull-stack AI systems built around a reconfigurable dataflow architecture. Palo Alto, US Private TE TenstorrentJim Keller's open-source RISC-V AI company — chips, cards and licensable IP. Toronto, CA Private DM d-MatrixIn-memory compute for the economics of small-batch inference. Santa Clara, US Private

Foundry & Packaging

5
ASE TechnologyThe world's largest packaging and test house (OSAT). Kaohsiung, TW ASX AT Amkor TechnologyThe US-headquartered OSAT building advanced packaging in Arizona. Tempe, US AMKR GL GlobalFoundriesThe trailing-edge specialist that still fabricates Groq's LPU. Malta, US GFS SM SMICChina's leading foundry, pushing 7 nm-class production without EUV. Shanghai, CN Private TS TSMCThe indispensable factory: nearly every leading AI chip is made here. Hsinchu, TW TSM

Memory

3
Micron TechnologyAmerica's memory maker, sold out of HBM generations in advance. Boise, US MU SK hynixThe HBM leader — NVIDIA's primary memory supplier through the boom. Icheon, KR 000660.KS Samsung ElectronicsMemory giant and foundry challenger, fighting back for HBM share. Suwon, KR 005930.KS

Semiconductor Equipment

7
AS ASMLThe only maker of EUV lithography machines — a literal monopoly at the source. Veldhoven, NL ASML AM Applied MaterialsThe broadest toolmaker: deposition, etch, implant — and packaging tools too. Santa Clara, US AMAT BS BE Semiconductor (Besi)The hybrid-bonding specialist for the 3D-stacking era. Duiven, NL BESI.AS DC DISCO CorporationThe company that cuts and grinds nearly every advanced chip. Tokyo, JP 6146.T KL KLAProcess control: the inspection tools that make advanced yields possible. Milpitas, US KLAC LR Lam ResearchEtch and deposition leader — critical to HBM's through-silicon vias. Fremont, US LRCX TE Tokyo ElectronJapan's equipment giant — coaters, etchers and bonders in every fab. Tokyo, JP 8035.T

EDA & IP

3
AR ArmThe instruction set of the AI data center's CPUs — licensed, not manufactured. Cambridge, UK ARM Cadence Design SystemsThe other EDA duopolist — and a growing seller of AI-accelerated design. San Jose, US CDNS SynopsysThe largest chip-design software company — every AI chip is designed in EDA. Sunnyvale, US SNPS

Servers & Hardware

9
CE CelesticaThe Canadian EMS firm riding hyperscaler networking and AI systems. Toronto, CA CLS Dell TechnologiesThe enterprise heavyweight whose XE9680 line became an AI-server franchise. Round Rock, US DELL Foxconn (Hon Hai)The iPhone assembler that quietly became the largest AI-server builder. New Taipei, TW 2317.TW Hewlett Packard EnterpriseSupercomputing pedigree (Cray) plus the Juniper networking acquisition. Spring, US HPE JA JabilUS manufacturing scale for servers, photonics and liquid-cooling hardware. St. Petersburg, US JBL LenovoThe global #3 server maker with a strong liquid-cooling line (Neptune). Beijing, CN 0992.HK QC Quanta ComputerThe hyperscalers' original ODM — racks straight to Meta, Google and AWS. Taoyuan, TW 2382.TW SU SupermicroThe fastest mover in GPU servers — first to market with each NVIDIA generation. San Jose, US SMCI WI WiwynnThe pure-play hyperscale ODM spun out of Wistron. New Taipei, TW 6669.TW

Networking

14
AM AmphenolConnectors and cable assemblies in every server, switch and rack. Wallingford, US APH AN Arista NetworksThe Ethernet switch leader of the AI back-end network. Santa Clara, US ANET AL Astera LabsPCIe retimers and CXL connectivity inside nearly every AI server. San Jose, US ALAB CA Celestial AIThe Photonic Fabric: optical links from any chip to any memory. Santa Clara, US Private CI CienaCoherent optics linking AI data centers across cities and oceans. Hanover, US CIEN CiscoThe networking incumbent pushing its own silicon into AI fabrics. San Jose, US CSCO CO CoherentOne of the largest makers of the optical transceivers AI clusters consume by the million. Saxonburg, US COHR CO CorningThe fiber-optic cable itself — glass demand doubled by AI campuses. Corning, US GLW CT Credo TechnologyActive electrical cables — the copper that wires racks together. San Jose, US CRDO FA FabrinetThe contract manufacturer behind NVIDIA's optical transceivers. Bangkok, TH FN LI LightmatterPhotonic interconnect — moving light into the chip package itself. Mountain View, US Private LU LumentumLasers and photonics for the optical layer of AI networks. San Jose, US LITE NokiaOptical transport and data-center routing — with NVIDIA as a 2025 investor. Espoo, FI NOK TC TE ConnectivityThe other connector giant wiring AI racks and power paths. Galway, IE TEL

Power & Electrical

16
AB ABBSwiss electrification giant supplying medium-voltage gear to hyperscale sites. Zurich, CH ABBNY BE Bloom EnergyFuel cells as bridge power for grid-constrained AI sites. San Jose, US BE CaterpillarGensets and gas engines — plus the machines digging the sites. Irving, US CAT CumminsBackup generators — every hall's insurance policy. Columbus, US CMI DE Delta ElectronicsPower supplies and cooling for a huge share of the world's AI racks. Taipei, TW 2308.TW EA EatonSwitchgear, UPS and busway — the electrical spine of every data hall. Dublin, IE ETN GV GE VernovaAmerica's turbine and grid champion — sold out of gas turbines into the 2030s. Cambridge, US GEV HE Hitachi EnergyThe world's largest transformer maker — the grid's longest lead-time item. Zurich, CH 6501.T InfineonPower semiconductors from grid to GPU — partner on NVIDIA's 800V architecture. Neubiberg, DE IFX.DE MH Mitsubishi Heavy IndustriesThe third member of the gas-turbine oligopoly feeding AI campuses. Tokyo, JP 7011.T MP Monolithic Power SystemsThe voltage regulators feeding each GPU its thousand amps. Kirkland, US MPWR NS Navitas SemiconductorGaN power chips named into NVIDIA's next-gen power designs. Torrance, US NVTS Rolls-RoyceBackup power today, small modular reactors tomorrow. London, UK RR.L SE Schneider ElectricPower distribution plus cooling (Motivair) — a full data-center electrical stack. Rueil-Malmaison, FR SU.PA SE Siemens EnergyGas turbines and grid equipment — order books stretched by AI power demand. Munich, DE ENR.DE ON onsemiSilicon-carbide and power chips pushing into data-center supply units. Scottsdale, US ON

Cooling & Thermal

7
AS AsetekThe liquid-cooling patent pioneer, from gaming PCs to data centers. Aalborg, DK Private BO BoydThermal engineering at scale: cold plates, loops and heat exchangers. Pleasanton, US Private CS CoolIT SystemsCold plates and CDUs from the direct-liquid-cooling pioneer. Calgary, CA Private LI LiquidStackImmersion-cooling specialist now spanning tanks and CDUs. Carrollton, US Private MU MuntersAir-handling and evaporative cooling for hyperscale halls. Stockholm, SE Private SU SubmerEuropean immersion-cooling maker for dense AI and edge compute. Barcelona, ES Private VE VertivThe pure-play data-center infrastructure leader: cooling, UPS, busway. Westerville, US VRT

Data Center Operators

10
AD Aligned Data CentersHigh-density specialist that raised a record $12B+ equity round in 2025. Plano, US Private CyrusOneKKR/GIP-owned wholesale developer expanding for AI tenants. Dallas, US Private DR Digital RealtyWholesale data-center REIT with 300+ facilities on six continents. Dallas, US DLR EQ EquinixThe interconnection king: 270+ data centers where networks meet. Redwood City, US EQIX GH GDS HoldingsChina's leading carrier-neutral data-center developer. Shanghai, CN GDS IM Iron MountainThe records giant that built a fast-growing data-center arm. Portsmouth, US IRM NG NTT Global Data CentersJapan's giant with one of the world's largest colocation footprints. Tokyo, JP 9432.T QD QTS Data CentersBlackstone's data-center arm — the largest private development pipeline in the US. Overland Park, US Private SW SwitchThe Citadel and other US mega-campuses, taken private by DigitalBridge. Las Vegas, US Private VD Vantage Data CentersDigitalBridge-backed hyperscale developer building gigawatt campuses. Denver, US Private

Utilities & Generation

20
AE American Electric PowerOhio's transmission giant handling the New Albany AI corridor. Columbus, US AEP BT BWX TechnologiesThe nuclear component manufacturer every reactor program runs through. Lynchburg, US BWXT CE Constellation EnergyAmerica's largest nuclear fleet — restarting Three Mile Island for Microsoft. Baltimore, US CEG DE Dominion EnergyThe utility of Data Center Alley — more AI load than anywhere on Earth. Richmond, US D DE Duke EnergySoutheast utility signing AI campuses across the Carolinas. Charlotte, US DUK EN EntergyLouisiana's utility powering Meta's Hyperion with new gas turbines. New Orleans, US ETR HI Holtec InternationalThe company that did the 'impossible': restarting the Palisades reactor. Jupiter, US Private KP Kairos PowerGoogle's SMR partner: molten-salt-cooled reactors, 500 MW by 2035. Alameda, US Private NE NRG EnergyTexas retail-and-generation player building gas plants with GE Vernova for data centers. Houston, US NRG NE NextEra EnergyThe renewables superpower selling speed-to-power to data centers. Juno Beach, US NEE NP NuScale PowerThe only SMR design with US NRC approval — still awaiting its first order build. Portland, US SMR OK OkloFast-reactor startup, long chaired by Sam Altman, targeting data-center power. Santa Clara, US OKLO Sempra (Oncor)Owner of Oncor, the Texas wires company fielding a 100+ GW interconnection queue. San Diego, US SRE SC Southern CompanyOwner of Vogtle — America's newest big reactors — amid Georgia's data-center boom. Atlanta, US SO TE Talen EnergySusquehanna nuclear next to an AWS campus — the original co-location deal. Houston, US TLN TE TerraPowerBill Gates's Natrium reactor, under construction in Wyoming. Bellevue, US Private US Department of EnergyThe public sector's compute and power heavyweight: exascale labs, loans, reactors. Washington, US Private VI VistraTexas's merchant power giant — nuclear, gas and batteries into ERCOT. Irving, US VST WE WestinghouseThe AP1000 builder positioned for a US large-reactor revival. Cranberry, US Private XE X-energyAmazon-backed high-temperature gas reactor developer. Rockville, US Private

Cloud & Hyperscale

7
AlibabaChina's biggest cloud and the maker of Qwen — the world's most-forked open models. Hangzhou, CN BABA Amazon Web ServicesThe largest cloud, building custom silicon and gigawatt campuses for Anthropic. Seattle, US AMZN Google (Alphabet)The only company vertically integrated from TPU silicon to frontier models. Mountain View, US GOOGL IBMEnterprise AI (watsonx, Granite) plus the quantum roadmap. Armonk, US IBM MicrosoftAzure, the OpenAI alliance, Copilot — and Fairwater-class AI factories. Redmond, US MSFT OracleThe late-arriving cloud that bet the company on OpenAI and Stargate. Austin, US ORCL TencentWeChat's owner: Hunyuan models and China's other hyperscale cloud. Shenzhen, CN 0700.HK

AI Cloud

8
AD Applied DigitalNorth Dakota mega-campuses leased to CoreWeave — miner-to-AI conversion story. Dallas, US APLD CO CoreWeaveThe crypto-miner turned $20B-contract AI hyperscaler — the defining neocloud. Livingston, US CRWV CR CrusoeEnergy-first AI builder: from flare-gas computing to constructing Stargate Abilene. San Francisco, US Private G4 G42The UAE's state-linked AI champion — Microsoft-invested, Cerebras's anchor. Abu Dhabi, AE Private IR IRENBitcoin miner turned AI cloud with a reported $9.7B Microsoft GPU deal. Sydney, AU IREN LA LambdaThe developer-facing GPU cloud that landed a multi-billion Microsoft deal. San Jose, US Private NE NebiusThe ex-Yandex AI cloud with a reported $17B+ Microsoft contract. Amsterdam, NL NBIS TA Together AIOpen-model inference cloud and research shop (FlashAttention lineage). San Francisco, US Private

AI Labs & Software

33
AL AI21 LabsIsraeli lab known for the Jamba hybrid Mamba-transformer models. Tel Aviv, IL Private AN AnthropicThe safety-focused lab behind Claude — powered by Trainium, TPUs and GPUs at once. San Francisco, US Private A( Anysphere (Cursor)Maker of Cursor — the fastest-growing developer product in history (reported). San Francisco, US Private BA BaiduChina's search giant: ERNIE models, Apollo Go robotaxis, Kunlun chips. Beijing, CN BIDU BF Black Forest LabsThe Stable Diffusion authors' second act: the FLUX image models. Freiburg, DE Private CO CohereEnterprise-only models from a transformer-paper co-author. Toronto, CA Private DA DatabricksThe data-lakehouse platform where enterprises actually deploy AI. San Francisco, US Private DE DeepSeekThe lab that shook the market: frontier results at a fraction of the compute. Hangzhou, CN Private EL ElevenLabsThe voice-AI leader: cloning, dubbing and conversational agents. New York, US Private FA Figure AIHumanoid robots with in-house VLA models — a $39B bet on embodied AI. San Jose, US Private GD Google DeepMindFrom AlphaGo to Gemini and AlphaFold — the lab with a Nobel Prize on the shelf. London, UK Private HF Hugging FaceThe GitHub of models: two million model repos and the open ecosystem's home. New York, US Private LA LG AI ResearchKorea's enterprise lab (EXAONE) and FuriosaAI's anchor customer. Seoul, KR Private LA Luma AIDream Machine video and multimodal world-model ambitions — Humain-backed. Palo Alto, US Private MetaOpen-weights standard-bearer turned superintelligence spender. Menlo Park, US META MI MidjourneyThe bootstrapped image lab that never took venture money. San Francisco, US Private MI MiniMaxShanghai lab spanning LLMs, video (Hailuo) and companion apps. Shanghai, CN Private MA Mistral AIEurope's frontier hope — efficient open models, ASML-led funding. Paris, FR Private MA Moonshot AIMaker of Kimi — trillion-parameter open MoE models with agentic focus. Beijing, CN Private OP OpenAIMaker of ChatGPT and GPT-5 — and the buyer behind the biggest compute deals ever signed. San Francisco, US Private PA PalantirOntology-driven AI deployment for governments and industry. Denver, US PLTR PE PerplexityThe answer engine attacking Google head-on — browser and all. San Francisco, US Private PI Physical IntelligenceFoundation models for any robot — the π0 lab. San Francisco, US Private RU RunwayVideo generation for filmmakers — Gen-4 and Hollywood partnerships. New York, US Private SS Safe SuperintelligenceIlya Sutskever's one-product company: superintelligence, safely, nothing else. Palo Alto, US Private SA Scale AIThe data-labeling giant Meta bought half of for $14.3B. San Francisco, US Private SA Stability AIThe company that open-sourced image generation — then nearly collapsed. London, UK Private SU SunoText-to-song generation — and the music industry's test case. Cambridge, US Private TeslaReal-world AI at automotive scale: FSD, Optimus, and the AI5 chip program. Austin, US TSLA TM Thinking Machines LabMira Murati's lab — a record $2B seed and a fine-tuning product (Tinker). San Francisco, US Private WaymoThe only driverless service operating at real commercial scale. Mountain View, US Private ZA Zhipu AI (Z.ai)Tsinghua-born lab behind the GLM open-model line. Beijing, CN Private XA xAIElon Musk's lab: Grok models and the fastest data-center build ever seen. Palo Alto, US Private

Capital & Investors

5
BL BlackstoneThe largest private-capital owner of data centers (QTS) and their power. New York, US BX BR BrookfieldOwner of Westinghouse and a global data-center + renewables platform. Toronto, CA BN KK KKRCyrusOne's owner and half of a $50B AI-infrastructure alliance. New York, US KKR MG MGXAbu Dhabi's $100B AI fund — Stargate's sovereign capital. Abu Dhabi, AE Private SG SoftBank GroupMasayoshi Son's everything-bet on AI: Arm, OpenAI, Stargate, Ampere, Graphcore. Tokyo, JP 9984.T

Public companies link through to the Stocks page. Download: companies.csv