Witnessly
Expert Witness Directory

Find the Right Expert for Every Case

Browse our verified directory of expert witnesses spanning medicine, engineering, finance, and dozens of specialized fields.

Showing 145–162 of 531 experts

Clear filters
Civil Engineering

Honglong (Hong) Li

Ph.D, Professional Engineer, Civil

Honolulu, HI26 years+ yrs★ 8.6

Honglong (Hong) Li, Ph.D, Professional Engineer, Civil is a Traffic Engineering expert specializing in transportation policies and environmental impact studies. With a career spanning civil engineering, transportation planning, and public transit systems, he brings a comprehensive framework to litigation work involving complex transportation issues. His work centers on investigating traffic accidents, assessing transportation greenhouse gas emissions, and evaluating whether transportation management systems meet regulatory standards. Mr. Li has been retained in numerous expert witness and consulting engagements throughout Hawaii, involving traffic accidents, road maintenance fee disputes, and transportation greenhouse gas emissions. His Ph.D. in Civil and Environmental Engineering, along with his Professional Engineer license in Hawaii, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving transportation safety and management systems.

Traffic EngineeringTransportation policiesCivil Rights Title VI/environmental justice+3
Electrical Engineering

Taylor A. Russell, P.E., CFEI

Engineer: Electrical

Concord, California18 years+ yrs★ 8.5

Taylor A. Russell, P.E., CFEI is an electrical engineering expert specializing in forensic analysis of electrical system failures and compliance issues. With a career encompassing industrial automation, power systems, and control systems, he brings a multidisciplinary perspective to litigation work. His work centers on investigating electrical failures, assessing code compliance, and evaluating whether industry standards were met. Mr. Russell has been retained in numerous expert witness and consulting engagements across the United States, involving cases related to industrial design, building automation, and electrical construction defects. His Bachelor of Science in Electrical Engineering, along with certifications such as Certified Automation Professional and Certified Fire and Explosion Investigator, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving electrical engineering and industrial design.

Industrial Design
Traffic Engineering

Lawrence M. Levine

Consulting Engineer

Malta, New York53 years+ yrs★ 8.5

Lawrence M. Levine, P.E. is a Traffic Engineering and Accident Reconstruction expert specializing in accident investigation and reconstruction, civil engineering, and environmental impact studies. With a career spanning over five decades in civil engineering, transportation planning, and traffic engineering, he brings a multidisciplinary approach to analyzing complex accident scenarios and infrastructure issues. His work centers on investigating accident causation, assessing traffic safety measures, and evaluating whether design and construction standards have been met. Mr. Levine has been retained in numerous expert witness and consulting engagements across New York, involving traffic accident cases, civil engineering projects, and environmental impact assessments. His Bachelor of Science in Civil Engineering from Michigan State University and Master’s Degree (MTE) in Civil Engineering from Rensselaer Polytechnic Institute, along with certifications such as NYS and NJ Professional Engineer Licenses and NYSTARS, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving traffic accidents, structural failures, and safety compliance.

Accident ReconstructionCivil EngineeringEnvironmental Impact Studies
Electrical Engineering

Rico Ashley

Principal

Clearwater, FL23 years+ yrs★ 8.5

Rico Ashley, P.E. is a power engineering expert specializing in National Electrical Code (NEC) compliance, National Electrical Safety Code (NESC) compliance, and power generation construction standards. With a career spanning electrical engineering, power generation commissioning, and protective relaying standards, he brings a comprehensive understanding of industry-specific compliance and safety protocols to his litigation work. His work centers on investigating NEC and NESC compliance, assessing power generation construction standards, and evaluating whether protective relaying standards and coordination have been properly implemented. Mr. Ashley has been retained in numerous expert witness and consulting engagements across Florida, Georgia, and Texas, involving cases related to electrical safety, power generation, and arc flash compliance. His Bachelor of Science in Electrical Engineering from Tuskegee University, along with his Professional Engineering Licenses in Florida, Nebraska, and Texas, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of compliance and safety standards in disputes involving electrical engineering and power systems.

ElectricityNational Electrical Code (NEC) complianceNational Electrical Safety Code (NESC) compliance+6
Engineering

Michael A. Pollock, P.E., U.S.P.T.O. Registered

Principal Engineer, Patent Expert

Bryn Mawr, PA25 years+ yrs★ 8.5

Michael A. Pollock, P.E., U.S.P.T.O. Registered is a forensic engineering expert specializing in construction defect analysis and mechanical engineering standard of care. With a career spanning engineering, project management, and facility design, he brings a multidisciplinary perspective to litigation work. His work centers on investigating construction defects, assessing mechanical system failures, and evaluating whether engineering standards have been met. Mr. Pollock has been retained in numerous expert witness and consulting engagements across the United States, involving construction defect claims, mechanical system failures, and patent infringement matters. His B.S. in Mechanical Engineering from Drexel University, along with certifications such as Certified Energy Manager (CEM) and U.S. Patent & Trademark Office registration, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of standard of care in disputes involving construction defects and mechanical engineering failures.

Construction DefectsProject ManagementConstruction Management+12
Materials Failure Analysis

Paul Eason, Ph.D., P.E., CFEI

Jacksonville, FL★ 8.5

Paul D. Eason, Ph.D., P.E., CFEI is a materials failure analysis expert specializing in product liability and fire and explosion analysis. With a career encompassing academia, industry, and consulting, he brings a multidisciplinary approach to forensic engineering challenges. His work centers on investigating product defects, assessing material safety issues, and evaluating whether engineering standards were met in industrial accidents. Mr. Eason has been retained in numerous expert witness and consulting engagements across Florida, involving cases related to product defects, industrial accidents, and fire and explosion investigations. His Doctor of Philosophy in Material Science and Engineering, along with his Certified Fire and Explosion Investigator designation, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving materials failure and product safety.

Product LiabilityFire and Explosion AnalysisIndustrial Accident Investigation+8
Transportation Construction

Thomas J. Young, PE

Founder, Chairman & CEO

Roseville, CA★ 8.5

Thomas J. Young, PE is a transportation construction and civil engineering expert specializing in forensic engineering and infrastructure development. With a career spanning military aviation, logistics, and strategic airlift, he brings a multidisciplinary perspective to his litigation work. His work centers on investigating construction defects, assessing regulatory compliance, and evaluating whether industry standards have been met. Mr. Young has been retained in numerous expert witness and consulting engagements across California and Alaska, involving transportation infrastructure and heavy civil engineering projects. His Bachelor of Science Degree in Civil Engineering, along with his professional engineer licenses in California (PE #57043) and Alaska (PE #10025), reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of responsibility in disputes involving construction safety, structural failures, and human factors in transportation engineering.

Civil EngineeringConstruction ManagementForensic Engineering+9
HVAC Systems

JOSEPH A. LAROVERE, C.E.M.

C.E.M.

Cave Creek, AZ35+ years+ yrs★ 8.5

Joseph A. LaRovere, C.E.M. is an HVAC and Mechanical Engineering expert specializing in construction defects and energy management. With a career spanning roles as a contractor, owner/operator, technician, and consultant, he brings a multifaceted perspective to litigation work. His work centers on investigating system failures, assessing contractor standard of care, and evaluating whether energy management practices meet industry standards. Mr. LaRovere has been retained in numerous expert witness and consulting engagements across the United States, involving cases related to healthcare facilities, data centers, and high-rise residential buildings. His Certified Energy Manager designation, along with certifications such as Honeywell Tridium Niagara AX and Johnson Controls Facility Explorer, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of responsibility in disputes involving HVAC systems, energy management, and mechanical failures.

air conditioningheat pumpschiller plants+38
Waste Engineering

Joseph M. DeFranco

Certified Safety Professional

Raleigh, NC27 years+ yrs★ 8.5

Joseph M. DeFranco, CSP is a Safety and OSHA Compliance expert specializing in accident investigations and construction safety litigation. With a career encompassing diverse safety program development and regulatory compliance, he brings a comprehensive understanding of industry standards to his litigation work. His work centers on investigating safety violations, assessing compliance with OSHA standards, and evaluating whether industry best practices were followed. Mr. DeFranco has been retained in numerous expert witness and consulting engagements across the United States, involving construction safety, crane operations, and personal injury cases. His Bachelor of Science in Safety, Health, and Environmental Applied Sciences, along with certifications such as Board Certified Safety Professional and NCCCO Certified Crane Inspector, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving occupational safety and health policies and standards.

Geotechnical EngineeringEnvironmental Due DiligenceSafety and OSHA+22
Electrical Engineering

C. Martin Nowland

PE, CEM

Wolfeboro, NH34 years+ yrs★ 8.5

C. Martin Nowland, PE, CEM is an electrical engineering and controls expert specializing in energy management and industrial automation systems. With a career spanning electrical engineering, controls design, and energy management, he brings a comprehensive framework to litigation work involving complex engineering systems. His work centers on investigating electrical system failures, assessing compliance with engineering standards, and evaluating whether control systems meet safety and operational requirements. Mr. Nowland has been retained in numerous expert witness and consulting engagements across the United States, involving cases related to electrical engineering, industrial automation, and energy management systems. His BSEE from Worcester Polytechnic Institute, along with certifications such as Certified Energy Manager (CEM) and Professional Engineer (PE) licenses in multiple states, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving electrical and control systems.

ElectricityControls EngineeringEnergy Management
Software Engineering

Bert Schiettecatte

Senior Software & Hardware Engineer, Computer Scientist, Expert Witness

Los Angeles, CA20+ years+ yrs★ 8.5

Bert Schiettecatte, MSc/CS, MA/MST is a software and hardware engineering expert specializing in intellectual property litigation. With a career spanning software development, digital signal processing, and consumer electronics innovation, he brings a multidisciplinary perspective to his litigation work. His work centers on investigating software source code integrity, assessing hardware design compliance, and evaluating whether intellectual property infringements have occurred. Mr. Schiettecatte has been retained in numerous expert witness and consulting engagements across the United States, involving patent infringement, trade secret misappropriation, and breach-of-contract cases. His Master of Science in Computer Science, along with his Master of Arts in Music, Science and Technology, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving software and hardware systems.

ElectronicsTestifying expert witness with intellectual property litigation experienceSoftware source code review and analysis for intellectual property litigation+28
Neurology

George T. Gitchel, Ph.D.

Expert Witness and Subject Matter Expert for Traumatic Brain Injury Litigation

Richmond, VA17 years+ yrs★ 8.5

Jeffrey Hickman, Ph.D. is a human factors and safety expert specializing in occupational and industrial safety, as well as vehicle operator behavior. With a career encompassing behavioral safety, safety culture, and advanced driver assistance systems, he brings a comprehensive framework to litigation work involving human factors issues. His work centers on investigating driver distraction, assessing safety management techniques, and evaluating the impact of electronic device use on operator behavior. Dr. Hickman has been retained in numerous expert witness and consulting engagements across North America, involving cases related to transportation safety, occupational safety, and driver behavior. His Ph.D. in Clinical Psychology, along with his extensive involvement in safety research and development of safety programs, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving driver distraction, fatigue management, and safety regulations.

Biomedical EngineeringEye tracking developmentOculomotor analysis+8
Mechanical Engineering

David G. Smith

Professional Mechanical Engineer (PE)

Alpine, Utah20 years+ yrs★ 8.5

David G. Smith, MS, PE, CSP is a mechanical engineering expert specializing in patent litigation and product liability cases. With a career encompassing product development, equipment safety, and risk assessments, he brings a multifaceted perspective to his litigation work. His work centers on investigating patent infringement, assessing product safety, and evaluating whether design standards have been met. Mr. Smith has been retained in over 100 expert witness and consulting engagements across the United States, involving patent and personal injury cases in industries such as oil and gas equipment, exercise equipment, and consumer products. His Master's of Science in Mechanical Engineering, along with certifications as a Certified Safety Professional (CSP) and a Licensed Professional Engineer (PE), reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving mechanical failures and patent issues.

Intellectual PropertyProduct DevelopmentPatents+9
Structural Engineering

Nick M. Bradford

PhD, PE SE SI LEED AP

Tampa, FL27 years+ yrs★ 8.5

Nick M. Bradford, PhD, PE SE SI LEED AP is a structural engineering expert specializing in structural failure and collapse analysis. With a career spanning structural design, forensic engineering, and building code analysis, he brings a comprehensive framework to litigation work involving complex structural issues. His work centers on investigating structural failures, assessing construction defects, and evaluating whether building codes were adhered to. Mr. Bradford has been retained in numerous expert witness and consulting engagements across the southeastern United States, involving residential, commercial, and industrial property cases. His PhD in Civil Engineering, along with certifications such as LEED AP and multiple state engineering licenses, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving structural integrity and construction practices.

Construction EngineeringStructural Failure / CollapseStructural design+9
Software Engineering

Scott Ruthfield

Founder/CEO

Seattle, WA25+ years+ yrs★ 8.5

Scott Ruthfield is a software engineering and technology development expert specializing in software engineering best practices, software consulting expectations and deliverables, and information technology staffing. With a career spanning leadership roles in software engineering, technology development, and IT staffing services, he brings a strategic perspective to litigation work. His work centers on investigating software engineering processes, assessing consulting deliverables, and evaluating whether IT staffing meets industry standards. Mr. Ruthfield has been retained in numerous expert witness and consulting engagements across the United States, involving cases in software engineering, IT staffing, and technology consulting. His Master of Computer Science from Rice University, along with his extensive experience in software engineering and consulting, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of standard of care in disputes involving complex software and system design.

InternetSoftware engineering best practicesSoftware consulting expectations and deliverables+10
Mechanical Engineering

Ronald D. Schapf

Licensed Professional Mechanical Engineer

Los Angeles, CA30+ years+ yrs★ 8.5

Ronald D. Schapf, P.E. CA, NV, TX, FL is a mechanical engineering expert specializing in machine design litigation. With a career encompassing theme park ride systems, recreational vehicles, and off-road vehicle engineering, he brings a multifaceted perspective to his litigation work. His work centers on investigating mechanical failures, assessing design compliance, and evaluating whether engineering standards were met. Mr. Schapf has been retained in numerous expert witness and consulting engagements across the United States, involving cases related to theme park rides, recreational vehicles, and specialized machinery. His B.A.Sc. in Mechanical Engineering from the University of Waterloo, along with his Professional Engineer licenses in CA and NV, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving mechanical systems and vehicle dynamics.

MotorcycleMechanical Engineering DesignFinite Element Analysis
Civil Engineering

Michael F Myers

PE

Palmyra, VA30 years+ yrs★ 8.5

Michael F Myers, PE is a civil engineering expert specializing in land development and stormwater management litigation. With a career spanning drainage design, hydrology, and floodplain analysis, he brings a practical engineering perspective to evaluating compliance with regulatory standards. His work centers on investigating stormwater system failures, assessing erosion and sediment control measures, and evaluating whether adequate outfall analyses meet industry and legal requirements. Mr. Myers has been retained in numerous expert witness and consulting engagements across Virginia and Maryland, involving commercial, multi-family, and residential construction projects. His B.S. in Civil Engineering from The University of Virginia, along with his Professional Engineer licensure in Virginia, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of compliance and responsibility in disputes involving stormwater management and drainage systems.

Hydrology
Medical Devices

Gary D. Fletcher, Ph.D.

R&D Engineering Product Development Executive | IP Expert Witness

Media, PA47 years+ yrs★ 8.5

Gary D. Fletcher, Ph.D. is a medical device patent litigation expert specializing in intellectual property assessment and development. With a career spanning R&D leadership, new product development, and biomedical engineering, he brings a strategic innovation framework to his litigation work. His work centers on investigating patent infringement claims, assessing the validity of intellectual property, and evaluating whether industry standards in medical device engineering have been met. Mr. Fletcher has been retained in numerous expert witness and consulting engagements across the United States, involving medical device patent disputes and clinical diagnostics. His Doctor of Philosophy in Physics from Yale University, along with his extensive experience in R&D leadership and IP assessment, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of patent validity and infringement in disputes involving blood collection and separation technologies, point-of-care testing, and medical diagnostics.

Biomedical EngineeringNew Product DevelopmentR&D Leadership+10
Talk to us about your case
Find the right expert with greater clarity, confidence, and transparency.
© 2026 Witnessly. All rights reserved.