Home
Safety
| Our Culture
| Sustainability
- Community
- Employees
- Environment
- Council
- Policies
| Family Of Companies
- Our Operating Companies
- Our Locations
| What We Do
- Aggregates
- Cement
- Ready Mix
- Asphalt
- Services
| Investor Relations
Contact Us

NYSE: SUM | Stock Price:↓28.15
Market Cap ($M) | 3.28B

NYSE:SUM | ↓ 28.15
Investor Relations
Employee Portal
EN login
Ethics Hotline

January 1, 1970 - Mainland Sand and Gravel is founded

Recent Posts

Summit in the News – story 1
SUMMIT MATERIALS ANNOUNCES FOURTH QUARTER AND FULL-YEAR 2017 RESULTS CONFERENCE CALL DATE
SUMMIT MATERIALS, INC. REPORTS FOURTH QUARTER AND FULL-YEAR 2017 RESULTS
SUMMIT MATERIALS ANNOUNCES FIRST QUARTER 2018 RESULTS CONFERENCE CALL DATE
Safety

Recent Comments

Archives

August 2018
July 2018
June 2018
May 2018
April 2018
March 2018
February 2018
January 2018

Categories

Employees
Environment
News
Uncategorized

Meta

Log in
Entries feed
Comments feed
WordPress.org

1970

Mainland Sand & Gravel (now Mainland Construction Materials) is founded by Laurie Carlson and his brother Mel Carlson.

Next article

Previous article

© Summit Materials 2021
All Rights Reserved.
Privacy Policy

Summit Materials

1550 Wynkoop,
Third Floor
Denver, CO 80202

(P) 303-893-0012
(F) 303-893-6993

Safety
Our Culture
Sustainability
Family of Companies
What We Do
Investor Relations
Contact Us
Employee Portal Employee Portal
Ethics Hotline Ethics Hotline
Careers Careers