| MeteorConsumer | Consumer | San Francisco, United States | | browse.dev |
| MetorialB2B | B2B | — | | metorial.com |
| Metro Africa XpressOther | Other | Lagos, Nigeria | Adetayo Bamiduro | maxdrive.ai |
| MetrobiOther | Other | Boston, United States | Elvan Ceyhan | metrobi.com |
| MicaFintech | Fintech | Mexico City, Mexico | — | mica.rent |
| microTERRAIndustrials | Industrials | Irapuato, Mexico | — | microterra.com.mx |
| Mighty AudioConsumer | Consumer | Los Angeles, United States | — | bemighty.com |
| Milk MoovementIndustrials | Industrials | Halifax, Canada | Jackson Hutchison | milkmoovement.com |
| MillimetricB2B | B2B | — | — | millimetric.ai |
| MillirayIndustrials | Industrials | — | | milliray.com |
| MimoEducation | Education | Vienna, Austria | — | mimo.org |
| MimoFintech | Fintech | — | Trigger Huang | mimohq.com |
| MimosB2B | B2B | — | | trymimos.com |
| MindFortB2B | B2B | — | | mindfort.ai |
| MindframeB2B | B2B | Istanbul, Turkey | — | mindframe.care |
| Mine'dIndustrials | Industrials | New York City, United States | — | doyoumined.com |
| Mineral ForecastIndustrials | Industrials | Santiago, Chile | — | en.mineralforecast.com |
| MinicorB2B | B2B | San Francisco, United States | | minicor.com |
| Minimal AIB2B | B2B | — | | gominimal.ai |
| MiniswapConsumer | Consumer | San Francisco, United States | | miniswap.gg |
| Mint State LabsOther | Other | Redmond, United States | — | mintstatelabs.com |
| MinuboB2B | B2B | — | Lennart Paulick | minubo.com |
| MiphicB2B | B2B | Wilmington, United States | — | miphic.co |
| Miru LabsB2B | B2B | — | — | miru-labs.com |
| MistralB2B | B2B | — | Arthur Mensch | mistral.ai |
| MITO Material SolutionsOther | Other | Stillwater, United States | Eric Groo | mitomaterials.com |
| MiurosOther | Other | Lyon, France | — | miuros.com |
| MixyConsumer | Consumer | — | Joe Kennedy | usemixy.com |
| MobiagConsumer | Consumer | Torres Vedras, Portugal | — | mobiag.com |
| Moby AnalyticsB2B | B2B | Paris, France | | mobyanalytics.com |
| MocavoOther | Other | Boulder, United States | Cliff Shaw | mocavo.com |
| MochaCareB2B | B2B | — | | mochacare.com |
| Mod AIB2B | B2B | — | | usemod.ai |
| ModaB2B | B2B | — | | modaflows.com |
| Modal LivingOther | Other | Salt Lake City, United States | — | livemodal.com |
| ModalityEducation | Education | Boston, United States | — | findmodality.com |
| ModelenceB2B | B2B | San Francisco, United States | Aram Shatakhtsyan | modelence.com |
| ModernFintech | Fintech | Denver, United States | — | modernis.com |
| Modern HealthB2B | B2B | United States | Alyssa Mahler | joinmodernhealth.com |
| ModernGuildEducation | Education | New York City, United States | — | modernguild.com |
| Modicus PrimeB2B | B2B | La Porte, United States | — | modicusprime.com |
| ModularB2B | B2B | — | Chris Lattner | modular.com |
| ModuleOther | Other | Pittsburgh, United States | — | modulehousing.com |
| mokSa AIOther | Other | Sterling Heights, United States | — | moksa.ai |
| MOLGOther | Other | Washington, United States | — | molg.ai |
| MonaB2B | B2B | San Francisco, United States | — | monaventures.co |
| MonarchaB2B | B2B | San Francisco, United States | | monarcha.ai |
| MondaycarFintech | Fintech | Paris, France | — | mondaycar.com |
| MoneivaB2B | B2B | Omaha, United States | — | moneiva.com |
| MoneseFintech | Fintech | — | Norris Koppel | monese.com |