Since 1988, Keystone Engineering Inc. has delivered innovative and practical engineering solutions to a comprehensive list of clients across industries. Our multi-discipline team is committed to the highest level of quality and safety in providing cost-effective and schedule conscious designs.
We offer a comprehensive suite of services with significant expertise in the Energy, Refining, Petrochemical, Mining, Marine, Manufacturing, and Utility Industries, as well as Renewable Energy. Our services are tailored to meet the specific needs of each project. Milestone Project Services, SIS SILverstone, Salmon & Associates, and VeraPro are Keystone subsidiaries who help us provide clients with additional services such as Construction Management, Process Safety Management, Staffing, and IT services.
MISSION
Developing career opportunities for our employees while consistently and safely exceeding our clients’ expectations for quality and responsiveness.
VISION
To be our clients’ preferred provider of engineering and design services.
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With licensing across the United States (blue), our offices are strategically located to allow optimal responsiveness and flexibility to execute projects across a wide range of capital expenditures.
750+
Keystone Companies Team
75%
Professional Engineers
1M+
$10k-$1B
Core Values
Brand Values
Preferred Partners Because of
People-First Leadership
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Trusted to Start & Finish with Safety
Keystone is committed to relentless improvement in Health, Safety and Environment. Our exceptional HSE performance for over three decades demonstrates this commitment. We recognize that the total commitment to safety must be integrated into every facet of Keystone’s business.
Keystone is effectively positioned to meet your company’s expectations for HSE management and continual improvement. Our systematic approach and experience adapting our processes to numerous HSE Management System frameworks will allow for seamless integration with your company’s HSE-MS.
Awards
United Way of Southeast Louisiana
LIVE UNITED Award
For continued support of the community and United Way's mission
Capital Area United Way
Achievement Award
For dedication and commitment to a successful United Way workplace campaign
Louisiana Workers' Compensation Corporation
Safest 70 Award
Acknowledges excellence, outstanding performance, and commitment to workplace safety
Gulf Coast Safety Council
Site Injury-Free Award - Technical Services Contractor
PBF Energy Chalmette Refinery
United Way of Southeast Louisiana
Top 60 Most Generous Workplaces
Gulf Coast Safety Council
Site Injury-Free Award - Technical Services Contractor
Valero St. Charles Refinery
Gulf Coast Safety Council
Site Injury-Free Award - Technical Services Contractor
Valero Meraux Refinery
Business Network for Offshore Wind
Member of the Year Award
Bentley Systems
Be Inspired Award for Offshore Innovation
Nola.com/The Times-Picayune
Bentley Systems
Top Workplace Award
Highest Ranking Engineering Firm in Greater New Orleans Area
Well-Established Engineering Relationships
Ankor Energy
Apache
Arena Offshore
BP Energy
BP Lubricants
Birla Carbon
Boardwalk Louisiana Midstream
Boardwalk Pipeline Partners
CF Industries
Cabot Corporation
Calumet Specialty Products
Cantium
Cargill
Carrizo
Chevron Company
Chevron Ornite
Chevron Pipeline
ConocoPhillips
Delek Logistics
Delek US
Dominion Virginia Power
Dupont
ENI Petroleum
Eastman Chemicals
EcoServices
Electricite de France
EnLink Midstream
Enbridge
Energy Transfer Company
Energy XXI
Enterprise Products
Enven Energy
Ergon Inc.
Exxonmobil
Formosa Plastics
Gulf Island Fabrication
Helis Oil&Gas Co.
Hess
JAB Energy Solutions
Kinder Morgan
LLOG Exploration Company
Louisiana Offshore Oil Port (LOOP)
LyondellBasell
Marathon Oil
Marathon Petroleum
Mosaic Phosphates
Naranda Aluminina
National Grid
National Renewable Energy Laboratory (NREL)
Navitas Midstream
Occidental Oil & Gas
Orstead
PBF Energy
Petroleum Corporation of Jamaica
Phillips66
Placid Refining
Rain CII Carbon
Repsol
Shell Chemical
Shell Exploration & Production Company
Shell Pipeline
Siemens
Southern Ionics
Spectra Energy
Stolthaven
TC Energy
Targa Resources
Total Petrochemicals & Refining USA Inc.
U.S. Wind Inc.
United Bulk Terminals
United States Trade & Development Agency
VAALCO
Valero Energy
Ventura Foods
Vertex Energy Inc.
Westlake Chemicals Company
Williams Companies
Ankor Energy
Apache
Arena Offshore
BP Energy
BP Lubricants
Birla Carbon
Boardwalk Louisiana Midstream
Boardwalk Pipeline Partners
CF Industries
Cabot Corporation
Calumet Specialty Products
Cantium
Cargill
Carrizo
Chevron Company
Chevron Ornite
Chevron Pipeline
ConocoPhillips
Delek Logistics
Delek US
Dominion Virginia Power
Dupont
ENI Petroleum
Eastman Chemicals
EcoServices
Electricite de France
EnLink Midstream
Enbridge
Energy Transfer Company
Energy XXI
Enterprise Products
Enven Energy
Ergon Inc.
Exxonmobil
Formosa Plastics
Gulf Island Fabrication
Helis Oil&Gas Co.
Hess
JAB Energy Solutions
Kinder Morgan
LLOG Exploration Company
Louisiana Offshore Oil Port (LOOP)
LyondellBasell
Marathon Oil
Marathon Petroleum
Mosaic Phosphates
Naranda Aluminina
National Grid
National Renewable Energy Laboratory (NREL)
Navitas Midstream
Occidental Oil & Gas
Orstead
PBF Energy
Petroleum Corporation of Jamaica
Phillips66
Placid Refining
Rain CII Carbon
Repsol
Shell Chemical
Shell Exploration & Production Company
Shell Pipeline
Siemens
Southern Ionics
Spectra Energy
Stolthaven
TC Energy
Targa Resources
Total Petrochemicals & Refining USA Inc.
U.S. Wind Inc.
United Bulk Terminals
United States Trade & Development Agency
VAALCO
Valero Energy
Ventura Foods
Vertex Energy Inc.
Westlake Chemicals Company
Williams Companies
Ankor Energy
Apache
Arena Offshore
BP Energy
BP Lubricants
Birla Carbon
Boardwalk Louisiana Midstream
Boardwalk Pipeline Partners
CF Industries
Cabot Corporation
Calumet Specialty Products
Cantium
Cargill
Carrizo
Chevron Company
Chevron Ornite
Chevron Pipeline
ConocoPhillips
Delek Logistics
Delek US
Dominion Virginia Power
Dupont
ENI Petroleum
Eastman Chemicals
EcoServices
Electricite de France
EnLink Midstream
Enbridge
Energy Transfer Company
Energy XXI
Enterprise Products
Enven Energy
Ergon Inc.
Exxonmobil
Formosa Plastics
Gulf Island Fabrication
Helis Oil&Gas Co.
Hess
JAB Energy Solutions
Kinder Morgan
LLOG Exploration Company
Louisiana Offshore Oil Port (LOOP)
LyondellBasell
Marathon Oil
Marathon Petroleum
Mosaic Phosphates
Naranda Aluminina
National Grid
National Renewable Energy Laboratory (NREL)
Navitas Midstream
Occidental Oil & Gas
Orstead
PBF Energy
Petroleum Corporation of Jamaica
Phillips66
Placid Refining
Rain CII Carbon
Repsol
Shell Chemical
Shell Exploration & Production Company
Shell Pipeline
Siemens
Southern Ionics
Spectra Energy
Stolthaven
TC Energy
Targa Resources
Total Petrochemicals & Refining USA Inc.
U.S. Wind Inc.
United Bulk Terminals
United States Trade & Development Agency
VAALCO
Valero Energy
Ventura Foods
Vertex Energy Inc.
Westlake Chemicals Company
Williams Companies
Ankor Energy
Apache
Arena Offshore
BP Energy
BP Lubricants
Birla Carbon
Boardwalk Louisiana Midstream
Boardwalk Pipeline Partners
CF Industries
Cabot Corporation
Calumet Specialty Products
Cantium
Cargill
Carrizo
Chevron Company
Chevron Ornite
Chevron Pipeline
ConocoPhillips
Delek Logistics
Delek US
Dominion Virginia Power
Dupont
ENI Petroleum
Eastman Chemicals
EcoServices
Electricite de France
EnLink Midstream
Enbridge
Energy Transfer Company
Energy XXI
Enterprise Products
Enven Energy
Ergon Inc.
Exxonmobil
Formosa Plastics
Gulf Island Fabrication
Helis Oil&Gas Co.
Hess
JAB Energy Solutions
Kinder Morgan
LLOG Exploration Company
Louisiana Offshore Oil Port (LOOP)
LyondellBasell
Marathon Oil
Marathon Petroleum
Mosaic Phosphates
Naranda Aluminina
National Grid
National Renewable Energy Laboratory (NREL)
Navitas Midstream
Occidental Oil & Gas
Orstead
PBF Energy
Petroleum Corporation of Jamaica
Phillips66
Placid Refining
Rain CII Carbon
Repsol
Shell Chemical
Shell Exploration & Production Company
Shell Pipeline
Siemens
Southern Ionics
Spectra Energy
Stolthaven
TC Energy
Targa Resources
Total Petrochemicals & Refining USA Inc.
U.S. Wind Inc.
United Bulk Terminals
United States Trade & Development Agency
VAALCO
Valero Energy
Ventura Foods
Vertex Energy Inc.
Westlake Chemicals Company
Williams Companies
Our Patents
The ‘678 Patent
Pending Taiwan Patent Application No. 104116479
Directed to "Offshore Structure”
Pending PCT Application No. PCT/US2015/032284
Directed to "Offshore Structure", claiming priority to (“the ‘678 patent”)
US Patent Application No. 14/720,520
Directed to “Offshore Support Structure”, claiming priority to (“the ‘678 patent”)
U.S. Provisional Application No. 62/002,678
Directed to “Offshore Support Structure”
Pending South Korean Patent Application No. 10-2014-7017601
Directed to “Grouted cylindrical connection utilizing bearing surfaces for offshore monopole foundations”, corresponding to ‘414 patent
The ‘940 Patent
U.S. Patent 8,511,940
Directed to “Grout reinforced spherical head and cylindrical shell for offshore tubular joints and concrete reinforced spherical head and cylindrical shell for offshore tubular joints"
Canadian Patent No. 2,587,877
Offshore Structure Support & Foundation for Use with a Wind Turbine & an Associated Method of Assembly
corresponding to ‘453 patent
European Patent No. 05821100.4
Offshore Structure Support & Foundation for Use with a Wind Turbine & an Associated Method of Assembly
claiming priority benefit of US 60/626,912
Canadian Patent No. 2858354
Directed to “Grouted cylindrical connection utilizing bearing surfaces for offshore monopole foundations”, corresponding to ‘414 patent
European Patent No. 12852619.1
Directed to “Grouted cylindrical connection utilizing bearing surfaces for offshore monopole foundations”, corresponding to ‘414 patent
The ‘414 Patent
U.S. Patent 8,888,414
Directed to “Grouted cylindrical connection utilizing bearing surfaces for offshore monopole foundations”
South Korean Patent No. 1437379
Directed to “Offshore Support Structure and Associated Method of Installing”, corresponding to ‘940 patent
Chinese Patent No. 1024828608
Directed to “Offshore Support Structure and Associated Method of Installing”, corresponding to ‘940 patent
European Patent No. 10736880.5
Directed to “Offshore Support Structure and Associated Method of Installing”, corresponding to ‘940 patent
Japanese Patent No. 5422050
Directed to “Offshore Support Structure and Associated Method of Installing”, corresponding to ‘940 patent
Canadian Patent No. 2,765,046
Directed to “Offshore Support Structure and Associated Method of Installing”, corresponding to ‘940 patent
The ‘453 Patent
U.S. Patent 7,198,453
Directed to offshore structure support and foundation for use with a wind turbine and an associated method of assembly
Canadian Patent 2,478,574
Directed to structure supports, corresponding to the ‘305 patent.
European Patent 1,425,476
Validated in the following countries
Belgium, Germany, Denmark, Ireland, Netherlands, Sweden, Great Britain and France, corresponding to ‘305 patent.
Offshore Structure Support
U.S. Patent 7,942,611
The ‘611 patent, which is a divisional of the '305 patent
The '809 Patent
U.S. Patent 7,134,809
Including claims directed to structure supports and related methods and which is a continuation of the ‘305 patent
The '305 Patent
U.S. Patent 6,783,305
Directed to offshore structure supports
