List of Modern Monopolies and Duopolies by Industry

A List of Monopolies:

Monopolies

Search: $Alphabet(GOOG)$ $Alphabet(GOOGL)$

Semi Fabs: $Taiwan Semiconductor Manufacturing(TSM)$

Wireless IP: $InterDigital(IDCC)$

Lithography: $ASML Holding NV(ASML)$

Uranium Refining: $Cameco(CCJ)$

Domain Registry: $VeriSign(VRSN)$

DNA Sequencing: $Illumina(ILMN)$

Duopolies

GPUs: $NVIDIA(NVDA)$ $Advanced Micro Devices(AMD)$

CPUs: $Advanced Micro Devices(AMD)$ $Intel(INTC)$

Networking: $Arista Networks(ANET)$ $Cisco(CSCO)$

ASICS: $Broadcom(AVGO)$ $Marvell Technology(MRVL)$

AEC: $Credo Technology Group Holding Ltd(CRDO)$ $Amphenol(APH)$

Etch Equipment: $Lam Research(LRCX)$ $Applied Materials(AMAT)$

Chip Design Software: $Cadence Design(CDNS)$ $Synopsys(SNPS)$

Credit Cards: $Visa(V)$ $MasterCard(MA)$

Credit Rating: $Moody's(MCO)$ $S&P Global(SPGI)$

Organ Transport: $TransMedics Group, Inc.(TMDX)$ $Xvivo Perfusion AB(XVIPF)$

Weight-Loss Drugs: $Novo-Nordisk A/S(NVO)$ $Eli Lilly(LLY)$

Surgical Robots: $Intuitive Surgical(ISRG)$ $Stryker(SYK)$

Aircrafts: $Boeing(BA)$ $Airbus SE(EADSY)$

Coke: $Coca-Cola(KO)$ $Pepsi(PEP)$

Mobile OS: $Apple(AAPL)$ $Alphabet(GOOG)$ $Alphabet(GOOGL)$

Travel: $Airbnb, Inc.(ABNB)$ $Booking Holdings(BKNG)$

Rideshare: $Uber(UBER)$ $Lyft, Inc.(LYFT)$

Gas Turbines: $GE Vernova Inc.(GEV)$ $Siemens Energy AG(SMNEY)$

Social Media: $Meta Platforms, Inc.(META)$ $Snap Inc(SNAP)$

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