- Low State LevelMPG Books GroupFormer British book and journal manufacturing group
- ContinentalMTU Aero EnginesGerman aircraft engine manufacturer
- High National LevelMahesh AgarwalManaging Partner of Agarwal Law Associates
- Top State LevelMamata BanerjeeFounder and president of All India Trinamool Congress; former chief minister of West Bengal (2011‑2026)
- Top ContinentalManageEngineEnterprise IT management software division of Zoho Corporation
- Mid ContinentalMarc AndreessenCo-Founder & General Partner, Andreessen Horowitz
- Top ContinentalMarc BenioffCo-founder, Chairman, and CEO of Salesforce; Owner of Time Magazine
- Mid ContinentalMarc TarpenningCo-founder of Tesla, Inc. & Venture Partner at Spero Ventures
- Mid State LevelMarcel FratzscherPresident, German Institute for Economic Research (DIW Berlin)
- Low ContinentalMarcos GalperinFounder and Chairman, Mercado Libre
- Low National LevelMarguerite BérardCEO, ABN AMRO
- High State LevelMario DesbordesMayor of Santiago
- Mid ContinentalMario GrecoCEO, Zurich Insurance Group
- Mid ContinentalMark RutteSecretary General of NATO and Former Prime Minister of the Netherlands
- Top ContinentalMark SuzmanCEO and Trustee of the Bill & Melinda Gates Foundation
- High GlobalMark ZuckerbergCo-founder, Chairman, CEO, and Controlling Shareholder of Meta Platforms
- High National LevelMarkus SöderMinister-President of Bavaria and Leader of the CSU
- Mid ContinentalMartin EberhardCo-Founder and Original CEO of Tesla
- Top Town LevelMarvin WisethFormer mayor of Trondheim and Conservative Party politician
- Low ContinentalMary BarraChair and Chief Executive Officer of General Motors
- High ContinentalMasaru IbukaCo-founder and former President & Chairman of Sony
- Mid ContinentalMasayoshi SonFounder & CEO, SoftBank Group
- Low National LevelMatt ComynChief Executive Officer, Commonwealth Bank
- High State LevelMaura HealeyGovernor of Massachusetts
- Mid ContinentalMcDonnell DouglasAerospace manufacturer and defense contractor
- High ContinentalMcKinsey & CompanyGlobal management consulting firm offering strategy and operations advice
- Low ContinentalMeg O'NeillChief Executive Officer, BP
- Top National LevelMeg WhitmanBusiness executive, former U.S. Ambassador to Kenya, and 2010 California gubernatorial candidate
- Top ContinentalMelinda French GatesPhilanthropist, Founder of Pivotal Ventures, and Former Co-Chair of the Gates Foundation
- Top ContinentalMenlo VenturesVenture capital firm specializing in AI, enterprise, consumer, and healthcare technology
- High National LevelMeredith CorporationAmerican media conglomerate (split and acquired in 2021 by Dotdash and Gray Media)
- High GlobalMeta Platforms, Inc.American multinational technology conglomerate and social network operator
- Top National LevelMichael CohenFormer Personal Counsel to Donald Trump & Trump Organization Vice President
- Top State LevelMichael DowlingPresident and CEO, Northwell Health
- Mid City LevelMichael LudwigMayor of Vienna
- Mid ContinentalMichael O'LearyCEO, Ryanair
- High City LevelMichelle WuMayor of Boston
- Low National LevelMicheál MartinTaoiseach of Ireland
- Low GlobalMicrosoft AzureGlobal cloud computing platform and enterprise infrastructure division of Microsoft Corporation
- Mid GlobalMicrosoft CorporationMultinational technology company
- Top Town LevelMiddlebury CollegePrivate liberal arts college in Middlebury, Vermont
- Top ContinentalMike Cannon-BrookesCo-founder and CEO of Atlassian; Climate Investor
- Low National LevelMike JohnsonSpeaker of the United States House of Representatives
- Top ContinentalMike MarkkulaAngel Investor, Former Chairman and CEO of Apple Computer, Inc.
- High National LevelMike SiciliaCo-Chief Executive Officer of Oracle Corporation
- Mid National LevelMilton Maluhy FilhoCEO, Itaú Unibanco
- Mid GlobalMitsubishi CorporationJapanese general trading company (sogo shosha)
- High GlobalMobilPetroleum brand and former major American oil corporation
- Low National LevelMohamed AlabbarFounder, Emaar Properties
- Top GlobalMonsantoAgrochemical and agricultural biotechnology corporation
- Top ContinentalMukesh AmbaniChairman & Managing Director of Reliance Industries Limited
- Low ContinentalMuleSoftEnterprise integration software and API platform provider
- Top National LevelMumbai IndiansFive-time Indian Premier League cricket franchise owned by Reliance Industries
- GlobalMunich ReGerman multinational reinsurance company