![Thomas Hill](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
Thomas Hill
Director/Board Member at
KNIFE RIVER CORPORATION
Net worth: 431 491 $ as of 30/05/2026
Profile
Thomas W.
Hill was the founder of Summit Materials LLC, founded in 2009, where the title held was Chief Executive Officer & Director in 2013.
Mr. Hill was the founder of Summit Materials, Inc., founded in 2009, where the title held was President, Chief Executive Officer & Director from 2018 to 2020.
Current jobs include Director at Wildlife Habitat Council since 2014, Director at Continental Cement Co. LLC, and Independent Director at Knife River Corp.
starting in 2024.
Former jobs include Chairman, Chief Executive Officer & President at Summit Materials Corporations I, Inc.; Chief Executive Officer at CRH America, Inc. from 2006 to 2008; Chief Executive Officer at CRH Americas Materials, Inc.; Chairman at American Road & Transportation Builders Association from 2002 to 2004; Director at Astec Industries, Inc. from 2008 to 2009; Director at CRH Plc from 2002 to 2008; Treasurer at National Asphalt Pavement Association; and Treasurer at National Stone, Sand & Gravel Association.
Education includes an undergraduate degree from Duke University in 1978 and an MBA from Trinity College Dublin in 1980.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 19/05/2026 | 5,496 ( 0.01% ) | 431 491 $ | 30/05/2026 |
Thomas Hill active positions
| Companies | Position | Start |
|---|---|---|
| KNIFE RIVER CORPORATION | Director/Board Member | 13/05/2024 |
Continental Cement Co. LLC
 Continental Cement Co. LLC Construction MaterialsNon-Energy Minerals Manufactures and markets cement | Director/Board Member | - |
Wildlife Habitat Council
 Wildlife Habitat Council Miscellaneous Commercial ServicesCommercial Services Operates as a non-profit organization to preserving biodiversity, advancing sustainable development and reducing environmental impact | Director/Board Member | 22/12/2014 |
Former positions of Thomas Hill
| Companies | Position | End |
|---|---|---|
| SUMMIT MATERIALS, INC. | Chief Executive Officer | 31/08/2020 |
| ASTEC INDUSTRIES, INC. | Director/Board Member | 27/08/2009 |
| CRH PLC | Director/Board Member | 24/06/2008 |
Oldcastle, Inc.
 Oldcastle, Inc. Construction MaterialsNon-Energy Minerals Provides building products and materials | Chief Executive Officer | 31/12/2007 |
American Road & Transportation Builders Association
 American Road & Transportation Builders Association Miscellaneous Commercial ServicesCommercial Services Operates an association which engages in growing transportation infrastructure | Chairman | 31/12/2003 |
Training of Thomas Hill
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
72
1st degree connections
15
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 15 |
|---|---|
Astec Industries, Inc.
 Astec Industries, Inc. Trucks/Construction/Farm MachineryProducer Manufacturing Manufactures equipment for aggregate processing, asphalt road building and pipeline | Producer Manufacturing |
Summit Materials Corporations I, Inc.
 Summit Materials Corporations I, Inc. Engineering & ConstructionIndustrial Services Engages in non-residential building construction | Industrial Services |
Duke University
 Duke University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
CRH Plc
 CRH Plc Construction MaterialsNon-Energy Minerals Produces and supplies cement, ready-mix concrete and aggregates | Non-Energy Minerals |
Oldcastle, Inc.
Oldcastle, Inc. Construction MaterialsNon-Energy Minerals Provides building products and materials | Non-Energy Minerals |
CRH Americas Materials, Inc.
 CRH Americas Materials, Inc. Wholesale DistributorsDistribution Services Supplies building materials | Distribution Services |
Trinity College Dublin
 Trinity College Dublin Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
National Asphalt Pavement Association
 National Asphalt Pavement Association Engineering & ConstructionIndustrial Services Provides engineering services | Industrial Services |
National Stone, Sand & Gravel Association
 National Stone, Sand & Gravel Association Miscellaneous Commercial ServicesCommercial Services Operates as an association of stone, sand and gravel producers and the equipment manufacturers | Commercial Services |
American Road & Transportation Builders Association
American Road & Transportation Builders Association Miscellaneous Commercial ServicesCommercial Services Operates an association which engages in growing transportation infrastructure | Commercial Services |
Wildlife Habitat Council
Wildlife Habitat Council Miscellaneous Commercial ServicesCommercial Services Operates as a non-profit organization to preserving biodiversity, advancing sustainable development and reducing environmental impact | Commercial Services |
Continental Cement Co. LLC
Continental Cement Co. LLC Construction MaterialsNon-Energy Minerals Manufactures and markets cement | Non-Energy Minerals |
Summit Materials LLC
 Summit Materials LLC Wholesale DistributorsDistribution Services Supplies aggregates, cement, ready-mix concrete and asphalt | Distribution Services |
Summit Materials, Inc.
 Summit Materials, Inc. Construction MaterialsNon-Energy Minerals Produces and supplies aggregates, cement, ready-mix concrete, asphalt & related paving products | Non-Energy Minerals |
Knife River Corp.
 Knife River Corp. Construction MaterialsNon-Energy Minerals Produces construction materials and provides contracting services | Non-Energy Minerals |
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