![Timothy Byrne](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>)
Timothy Byrne
Chief Executive Officer at
UNITED STATES LIME & MINERALS, INC.
Net worth: 13 M $ as of 31/05/2026
Profile
Timothy William Byrne is currently President, Chief Executive Officer & Director at United States Lime & Minerals, Inc. since 2000 and President at Arkansas Lime Co. Former positions include President, CEO, CFO, Director & SVP-Administration at United States Lime & Minerals, Inc. from 1991 to 1998, Director at Firstmark Corp., President at Rainmaker Interactive, Inc., and Vice President at National Lime Association.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 13/03/2026 | 1,14,741 ( 0.4% ) | 13 M $ | 31/05/2026 |
Timothy Byrne active positions
| Companies | Position | Start |
|---|---|---|
| UNITED STATES LIME & MINERALS, INC. | Chief Executive Officer | 08/12/2000 |
Arkansas Lime Co.
 Arkansas Lime Co. Construction MaterialsNon-Energy Minerals Provides limestone quarrying services | President | - |
Former positions of Timothy Byrne
| Companies | Position | End |
|---|---|---|
| UNITED STATES LIME & MINERALS, INC. | Chief Executive Officer | 01/01/1998 |
National Lime Association
 National Lime Association Miscellaneous Commercial ServicesCommercial Services The National Lime Association is a trade organization representing commercial lime producers, suppliers, and related trade groups in the United States and Canada. The non-profit company is based in Arlington, VA. The association advocates for the lime industry before federal and state regulatory bodies, provides legislative and regulatory updates, and supports members on compliance, health, safety, and sustainability issues, including greenhouse gas emissions. Lime, produced by calcining limestone in rotary kilns, is used in environmental, metallurgical, construction, chemical, and industrial fields. It is critical for pollution control, soil stabilization in infrastructure projects, and as an additive in asphalt and masonry products. Lime also serves as a fundamental industrial chemical in producing sodium alkalis, calcium carbide, citric acid, precipitated calcium carbonate, and other compounds used in various industries. The association offers technical resources, educational content, publishes a bi-monthly newsletter, organizes networking events, and maintains directories of lime plants and suppliers. | President | - |
| FIRSTMARK CORP | Director/Board Member | - |
Rainmaker Interactive, Inc. | President | - |
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
10
1st degree connections
5
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 5 |
|---|---|
United States Lime & Minerals, Inc.
 United States Lime & Minerals, Inc. Construction MaterialsNon-Energy Minerals Engages in the manufacture and sale of lime and limestone products | Non-Energy Minerals |
Firstmark Corp.
 Firstmark Corp. Aerospace & DefenseElectronic Technology Manufactures components and sub-assemblies for aerospace and defense applications | Electronic Technology |
Rainmaker Interactive, Inc. | |
Arkansas Lime Co.
Arkansas Lime Co. Construction MaterialsNon-Energy Minerals Provides limestone quarrying services | Non-Energy Minerals |
National Lime Association
National Lime Association Miscellaneous Commercial ServicesCommercial Services The National Lime Association is a trade organization representing commercial lime producers, suppliers, and related trade groups in the United States and Canada. The non-profit company is based in Arlington, VA. The association advocates for the lime industry before federal and state regulatory bodies, provides legislative and regulatory updates, and supports members on compliance, health, safety, and sustainability issues, including greenhouse gas emissions. Lime, produced by calcining limestone in rotary kilns, is used in environmental, metallurgical, construction, chemical, and industrial fields. It is critical for pollution control, soil stabilization in infrastructure projects, and as an additive in asphalt and masonry products. Lime also serves as a fundamental industrial chemical in producing sodium alkalis, calcium carbide, citric acid, precipitated calcium carbonate, and other compounds used in various industries. The association offers technical resources, educational content, publishes a bi-monthly newsletter, organizes networking events, and maintains directories of lime plants and suppliers. | Commercial Services |
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