MCompaniesMadroneTechnology · San FranciscoDeveloping dew-point cooling systems for data centers to reduce cooling electricity and water demand.View profile →
MGovernment & Public AgenciesMaine Department of TransportationPublic Agency · MaineState transportation agency focused on highway and bridge infrastructure in Maine.Roads & BridgesTransportationView profile →
MCompaniesMaingenTechnology · San FranciscoSimulation environments for training AI agents to manage industrial operations such as power plants, factories and data centers.View profile →
MCompaniesMarengoTechnology · San FranciscoEngineering services using internal AI tools to accelerate data center feasibility, design and permitting work.View profile →
MCompaniesMaritime FusionTechnology · San FranciscoDeveloping fusion reactors for maritime and off-grid power, alongside high-temperature superconducting cable technology.View profile →
MCompaniesMarvell TechnologyData infrastructure semiconductor company · Santa Clara, California, United StatesSemiconductors and connectivity platforms for AI, cloud, carrier, enterprise and automotive infrastructure.Data centersArtificial intelligence infrastructureCloud computingView profile →Contact ↗
MGovernment & Public AgenciesMaryland Department of TransportationPublic Agency · MarylandState transportation agency focused on highway and bridge infrastructure in Maryland.Roads & BridgesTransportationView profile →
MCompaniesMass MagneticsTechnology · Boston, MassachusettsManufacturing permanent magnets from recycled rare-earth materials for motors, robotics and industrial equipment.View profile →
MCompaniesMassachusetts Bay Transportation Authority (MBTA)Port / Transit Authority · Boston, MAPublic transit authority publishing design and construction solicitations and contract information through its official Business Center.View profile →
MGovernment & Public AgenciesMassachusetts Department of TransportationPublic Agency · MassachusettsState transportation agency focused on highway and bridge infrastructure in Massachusetts.Roads & BridgesTransportationView profile →
MGovernment & Public AgenciesMassachusetts Water Resources AuthorityPublic Agency · MassachusettsPublic utility focused on regional water and wastewater infrastructure in Massachusetts.Water & WastewaterView profile →
MCompaniesMasTecSpecialty infrastructure engineering and construction · Coral Gables, Florida, United StatesPublic North American contractor engineering, building, installing, maintaining and upgrading communications, energy and utility infrastructure.CommunicationsPower deliveryClean energyView profile →Contact ↗
MCompaniesMaverickXTechnology · Austin, TXChemical technologies for improving resource recovery from oil reservoirs and mineral ores.View profile →
MCompaniesMcCarthyGeneral contractor and infrastructure builder · St. Louis, Missouri, United StatesEmployee-owned national builder serving water, transportation, marine, renewable energy, industrial and institutional markets.Water and wastewaterTransportationMarine and portsView profile →Contact ↗
MCompaniesMcKinsey & CompanyManagement consulting and infrastructure advisory · Global organization founded in the United StatesGlobal management consultancy supporting infrastructure strategy, investment, capital-project delivery, operations, and transformation.TransportationEnergy and utilitiesDigital infrastructureView profile →Contact ↗
MCompaniesMcWaneWaterworks and critical-infrastructure products manufacturer · Birmingham, Alabama, United StatesFamily-owned manufacturer of waterworks, plumbing, fire-protection and pressure-vessel products.Water and wastewaterUtilitiesFire protectionView profile →
MCompaniesMead & HuntEngineering and Design · United StatesArchitecture, engineering, planning and construction services for transportation, water, aviation, energy and public infrastructure.TransportationWater and wastewaterAviationView profile →Contact ↗
MGovernment & Public AgenciesMemphis Light, Gas and WaterPublic Agency · TennesseePublic utility focused on electric, gas and water utility infrastructure in Tennessee.Energy & PowerWater & WastewaterView profile →
MCompaniesMeridiamInfrastructure investment and asset management · Paris, FranceLong-term developer, investor and manager of sustainable public infrastructure.Sustainable mobilityCritical public servicesInnovative low-carbon solutionsView profile →Contact ↗
MCompaniesMerrick & CompanyEngineering & Design · Greenwood Village, ColoradoEmployee-owned engineering, architecture, geospatial and technology services for infrastructure, energy and national-security markets.TransportationWater & WastewaterEnergy & PowerView profile →Contact ↗
MGovernment & Public AgenciesMetraPublic Agency · IllinoisTransit agency focused on commuter rail infrastructure, stations and fleet facilities in Illinois.Rail & TransitView profile →
MCompaniesMetropolitan Atlanta Rapid Transit Authority (MARTA)Port / Transit Authority · Atlanta, GAPublic transit authority providing vendor registration and procurement resources for businesses seeking to supply its transit operations and projects.View profile →
MGovernment & Public AgenciesMetropolitan Government of Nashville and Davidson CountyPublic Agency · TennesseeMunicipal government focused on municipal infrastructure, streets and public facilities in Tennessee.Municipal InfrastructureRoads & BridgesPublic FacilitiesView profile →
MGovernment & Public AgenciesMetropolitan St. Louis Sewer DistrictPublic Agency · MissouriPublic utility focused on wastewater and stormwater infrastructure in Missouri.Water & WastewaterView profile →