Multi Employer Worksites Expert Witnesses
Multi employer worksites expert witnesses and consultants listed here may be able to form expert opinions, draft expert witness reports, provide expert witness testimony at deposition and/or trial as or serve as consulting (non-testifying) experts on multi employer worksites. The multi employer worksites expert witness listings on this page are typically from fields/areas of expertise such as: Construction, OSHA, and Safety.
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Gregory G. Zigulis, MS, BSCE, MBA, CIH, CSP
Construction/Multiemployer Safety - Certified CSP
Sixth Sense Safety Solutions
Florida
OSHA, Safety
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multi-employer worksites, OSHA standards, safety & health obligations, serious and fatal injury prevention, contractor safety, OSHA citation policy, construction safety programs, ladder safety, toxic exposures, equipment-machine accidents, workplace falls, site inspections, forklifts, mobile elevated work platforms
40 years of occupational safety, health (including industrial hygiene), and environmental management experience within several industries. This includes roles as an Air Force Bioenvironmental Engineering officer (final rank of Captain, with industrial hygiene and environmental responsibilities), regional Occupational Health and Safety (OHS) management for a hazardous waste cleanup company, OHS management for a Prime Contractor to the Department of Energy (Oak Ridge, TN), construction safety and construction fatality research for the University of Tennessee under contract to the Department of Labor/Occupational Safety and Health Administration (OSHA), OHS management for a consumable dental supplies and metals related manufacturing/machining company, OHS management for an international gas engine manufacturer within a global automotive manufacturer, regional environmental, health and safety (EHS) management and global safety team member for a Tier 1 auto parts manufacturer, regulatory...
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Adam Birchfield, CSP, CHST
OSHA Construction Accident Investigation
A & A Safety Consulting
Hanover, Indiana
OSHA, Construction
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Fall Protection, EM385-1.1, OSHA and ANSI Standards, Scaffolds, Accident Investigation, General Contractor requirements, Crane Accidents, Steel Erection, Multi-employer Worksites, Excavations & Trenching, Slips, trips, and Falls, Effective Safety training, failure to train, and Inadequate training
Seasoned Safety and Health Professional with experience in managing complex safety operations across diverse industries, including construction, general industry, chemical plants, military, and federal projects. My career spans roles as a Safety Specialist with the US Army Corps of Engineers, where I managed safety program elements, conducted hazard assessments, and provided critical training to personnel at all levels. Contributions also extend to the EM385.1.1 update for the Army Corps of Engineers Headquarters, highlighting my technical decision-making abilities and leadership skills.
Qualifications:
• In-Depth Expertise: I have comprehensive knowledge of OSHA regulations, standards, and policies, honed through years of practical experience and continuous professional development.
• Versatility: My background encompasses diverse safety areas, including fall protection, scaffolding, crane safety, excavation, accident investigation, and more.
• Proven Record: I have been retained a...
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Gregory G. Zigulis, MS, BSCE, MBA, CIH, CSP
Construction/Multiemployer Safety - Certified CSP
Sixth Sense Safety Solutions
Rogers City, Michigan
OSHA, Safety
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multi-employer worksites, OSHA standards, safety & health obligations, serious and fatal injury prevention, contractor safety, OSHA citation policy, construction safety programs, ladder safety, toxic exposures, equipment-machine accidents, workplace falls, site inspections, forklifts, mobile elevated work platforms
40 years of occupational safety, health (including industrial hygiene), and environmental management experience within several industries. This includes roles as an Air Force Bioenvironmental Engineering officer (final rank of Captain, with industrial hygiene and environmental responsibilities), regional Occupational Health and Safety (OHS) management for a hazardous waste cleanup company, OHS management for a Prime Contractor to the Department of Energy (Oak Ridge, TN), construction safety and construction fatality research for the University of Tennessee under contract to the Department of Labor/Occupational Safety and Health Administration (OSHA), OHS management for a consumable dental supplies and metals related manufacturing/machining company, OHS management for an international gas engine manufacturer within a global automotive manufacturer, regional environmental, health and safety (EHS) management and global safety team member for a Tier 1 auto parts manufacturer, regulatory...
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Robert Amrhein, CSP, CHST, SSM
Construction Safety Expert
Plainview, New York
Safety, Construction
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Caught In Between, Falls From Heights, Fall Protection, Industrial Code Rule 23, Ladder, Multi-Employer Worksites, New York Labor Law 200 240 & 241, OSHA & ANSI Standards, Personal Protective Equipment (PPE), Safety Inspection, Safety Management, Scaffold, Struck By, Tool Safety, Safety Training, Workplace Safety
12 years performing workplace inspections on major construction projects. In depth knowledge of federal OSHA, New York state and New York City regulations. Expert in assessing job site conditions to identify hazards and determine the appropriate corrective measures. Frequently conduct site-specific training, new hire orientations, and lead meetings with contractors to improve overall safety culture.
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Gregory G. Zigulis, MS, BSCE, MBA, CIH, CSP
Construction/Multiemployer Safety - Certified CSP
Sixth Sense Safety Solutions
Texas
OSHA, Safety
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multi-employer worksites, OSHA standards, safety & health obligations, serious and fatal injury prevention, contractor safety, OSHA citation policy, construction safety programs, ladder safety, toxic exposures, equipment-machine accidents, workplace falls, site inspections, forklifts, mobile elevated work platforms
40 years of occupational safety, health (including industrial hygiene), and environmental management experience within several industries. This includes roles as an Air Force Bioenvironmental Engineering officer (final rank of Captain, with industrial hygiene and environmental responsibilities), regional Occupational Health and Safety (OHS) management for a hazardous waste cleanup company, OHS management for a Prime Contractor to the Department of Energy (Oak Ridge, TN), construction safety and construction fatality research for the University of Tennessee under contract to the Department of Labor/Occupational Safety and Health Administration (OSHA), OHS management for a consumable dental supplies and metals related manufacturing/machining company, OHS management for an international gas engine manufacturer within a global automotive manufacturer, regional environmental, health and safety (EHS) management and global safety team member for a Tier 1 auto parts manufacturer, regulatory...
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Kelly C. Knighton, CSP
Former OSHA Regional Administrator - Safety Expert
The Knighton Consulting Group, LLC
Santa Fe, Texas
OSHA, Safety
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OSHA Compliance, Construction, General Industry, Maritime, Workplace Safety, Safety, Manufacturing, Accident Investigation, Litigation Support, Risk Analysis, Regulatory Compliance, Plaintiff/Defense, Multi-Employer Worksites, OSHA Citations, scaffolding, Lockout/Tagout, confined space, fall protection, machine guarding, Excavation
Kelly C. Knighton is a Board-Certified Safety Professional (CSP) and former senior executive with the Occupational Safety and Health Administration (OSHA), bringing over 30 years of experience in workplace safety, regulatory enforcement, and incident investigation.
Ms. Knighton previously served as OSHA Regional Administrator overseeing one of the agency’s largest regions, directing enforcement and compliance programs across multiple states. She now provides expert consulting and litigation support involving workplace safety standards, OSHA compliance, and catastrophic incident analysis.
Expert Witness Specialties:
- OSHA regulations, compliance, and enforcement
- Construction safety, general industry, and maritime safety
- Workplace incident investigation and root cause analysis
- Fatalities and catastrophic injury analysis
- OSHA citations, including General Duty Clause (5(a)(1))
- Safety management systems and hazard identification
- Regulatory interpretation and industry s...
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Timothy Kobernat, CSP RET
OSHA Expert - Former Area Director
OSHAware LLC
Eau Claire, Wisconsin
OSHA, Safety
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OSHA, Fall Protection, Confined Space, Trenches, OSHA Standards, Paper Mill, Excavating, Lockout/Tagout, Cranes & Forklifts, Grain Elevators, Multi-Employer Worksites, Material Handling
With 32 years experience as an OSHA Area Director and Safety Compliance Officer, as well as an additional 17 years in various related safety and heath related work, I have a broad range of experience in OSHA & safety related matters.
In the approximately 14 years I spent as a compliance safety and health officer, I conducted approximately 1500 site inspections, roughly half of which were related to construction standards enforcement. During these inspections, I evaluated safety and health conditions and hazards, recommended abatement methods, and determined exposure and standard application. While serving approximately 16 years as district supervisor and area director for OSHA, a major part of my duties was to review virtually all files that came through our office, certifying their legal sufficiency for citations. In addition to my enforcement efforts with OSHA, I also conducted numerous construction safety seminars, helping companies to come into full compliance wit...