{"slice":{"kind":"company","id":"martin-marietta-materials","label":"Martin Marietta Materials","href":"/companies/martin-marietta-materials","apiPath":"/api/slices/company/martin-marietta-materials","lastmod":"2026-09-09"},"company":{"id":"martin-marietta-materials","name":"Martin Marietta Materials","url":"https://www.martinmarietta.com","description":"Leading North American supplier of aggregates and heavy building materials; S&P 500 company operating 500+ locations across 26 US states and Canada; produces aggregates, ready-mixed concrete, asphalt, and specialty lime.","roles":["supplier"],"jobs":[],"sectors":[],"ownershipType":"public","lifecycle":"active","investors":[],"markets":[],"capitalVerified":"2026-09-09"},"ownershipGraph":{"parent":null,"siblings":[],"acquisitions":[],"acquiredBy":null},"capital":{"rounds":[],"totalRaisedUsd":null,"publicListing":null,"revenueEstimateUsd":null},"provenance":{"sources":["https://www.martinmarietta.com","https://en.wikipedia.org/wiki/Martin_Marietta_Materials"],"capitalSources":["https://en.wikipedia.org/wiki/Martin_Marietta_Materials"]},"tools":[]}