The top 10

10. Lhoist North America (previous ranking: 9th)
9. Summit Materials (previous ranking: 10th)
8. Carmeuse Americas (previous ranking: 8th)
7. Rogers Group (previous ranking: 7th)
6. Cemex USA (previous ranking: 6th)
5. Holcim US (previous ranking: 5th)
4. Heidelberg Materials (previous ranking: 4th)
3. CRH Americas Materials (previous ranking: 3rd)
2. Martin Marietta (previous ranking: 2nd)
1. Vulcan Materials Co. (previous ranking: 1st)
The top eight crushed stone producers remain unchanged from a year ago. Vulcan Materials continues to top the list, with Martin Marietta in second. CRH Americas Materials ranks third, followed by Heidelberg Materials (No. 4) and Holcim US (No. 5). Summit Materials (No. 9) and Lhoist North America (No. 10) swap positions this year.