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Expert Witness Directory

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

Showing 451–468 of 3,373 experts

Engineering

Peter D. Zwick

Professional Engineer and Professional Land Surveyor

Columbia Station, Ohio44 years+ yrs★ 8.7

Peter D. Zwick, PE, PS, MS Eng. is a civil engineering and land surveying expert specializing in stormwater management, infrastructure development, and site planning litigation. With a career spanning public and private sector engineering, he brings a comprehensive understanding of municipal and industrial project execution to his litigation work. His work centers on investigating stormwater management practices, assessing infrastructure compliance, and evaluating whether construction standards have been met. Mr. Zwick has been retained in numerous expert witness and consulting engagements throughout Ohio, involving cases related to stormwater management, underground infrastructure, and highway accidents. His Master of Science in Systems Engineering, along with his licenses as a Professional Engineer and Professional Land Surveyor, 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 complex engineering and surveying issues.

Land Surveying
Environmental and Industrial Hygiene

Robin D. Franks

President & CEO

Houston, Texas38 years+ yrs★ 8.7

Robin D. Franks, P.G., CHMM, RSO is an Environmental and Industrial Hygiene expert specializing in environmental real property transactional and operational due diligence. With a career spanning environmental compliance, hazardous materials management, and industrial hygiene, she brings a comprehensive framework to litigation work involving complex environmental challenges. Her work centers on investigating environmental compliance, assessing hazardous materials management, and evaluating whether risk-based management practices have been effectively implemented. Ms. Franks has been retained in numerous expert witness and consulting engagements across the United States, involving environmental compliance, hazardous materials management, and industrial hygiene in industries such as oil and gas, manufacturing, and healthcare. Her Master of Science in Geology, along with certifications such as Certified Hazardous Materials Manager (CHMM), reinforce her ability to deliver objective, defensible analyses. She is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of responsibility in disputes involving environmental compliance and hazardous materials management.

Environmental Real Property Transactional & Operational Due DiligenceEnvironmental Compliance & Operational AuditEmergency Response Program Management for Hazardous Materials Releases+1
Products Liability

Meyer R. Rosen

Forensic Litigation Expert

Bonita Springs, FLOver 40 years+ yrs★ 8.7

Meyer R. Rosen, CPC, CChE, E-FAIC, FRSC, DABFET is a forensic litigation expert specializing in products liability, personal injury, and intellectual property cases. With a career encompassing chemical engineering, forensic analysis, and intellectual property, he brings a multifaceted perspective to litigation work. His work centers on investigating fires and explosions, assessing hazardous chemical exposures, and evaluating whether safety standards in product design and formulation were met. Mr. Rosen has been retained in numerous expert witness and consulting engagements across both Federal and State jurisdictions, involving cases related to consumer and industrial products, chemical burns, and toxic exposures. His M.S. in Chemical Engineering from the Polytechnic Institute of Brooklyn, along with certifications such as Certified Professional Chemist and Certified Fire & Explosion Investigator (Emeritus), 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 chemical technology and safety compliance.

Chemical TechnologyAccident ReconstructionFires & Explosions+5
Mechanical Engineering

Mike Simard

PE, PMP, CEP

Berwyn, PA30+ years+ yrs★ 8.7

Mike Simard, PE, PMP, CEP is a mechanical engineering expert specializing in equipment failure, design defects, and industrial safety matters. With a career spanning industrial machinery, process design, and manufacturing systems, he brings a technical leadership framework to litigation work. His work centers on investigating mechanical failures, assessing design defects, and evaluating whether industrial safety standards were met. Mr. Simard has been retained in numerous expert witness and consulting engagements across the United States, involving industrial machinery performance, manufacturing systems, and process design disputes. His Master of Science in Mechanical Engineering, along with certifications as a Certified Project Management Professional (PMP) and Certified Estimating Professional (CEP), 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 industrial safety.

DesignProcess EngineeringIndustrial Machinery+21
Biomedical Engineering

Patrick Jurney, Ph.D., FAHA

Associate Professor of Biomedical Engineering

San Jose, CA14 years+ yrs★ 8.7

Patrick Jurney, Ph.D., FAHA is a biomedical engineering expert specializing in mechanobiology, microfluidics, and cardiovascular biomaterials. With a career spanning academic research, teaching, and mentorship, he brings a multidisciplinary framework to litigation work involving complex biomedical systems. His work centers on investigating fluid shear stress impacts, assessing endothelial cell function, and evaluating mitochondrial dynamics in cardiovascular pathophysiology. Dr. Jurney has been retained in numerous expert witness and consulting engagements across the United States, involving cardiovascular devices, biomedical engineering, and medical device manufacturing. His PhD in Mechanical Engineering, along with his designation as a Fellow of the American Heart Association, 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 cardiovascular biomaterials and device efficacy.

Medical DevicesMechanobiologyMicrofluidics+1
Civil Engineering

Hesham Ali, Ph.D., PE

President-Senior Engineer

Sunrise, Florida36 years+ yrs★ 8.7

Hesham Ali, Ph.D., PE, CPM is a civil engineering expert specializing in infrastructure design, construction management, and geotechnical engineering litigation. With a career spanning artificial intelligence, robotics, and pavement engineering, he brings a multidisciplinary perspective to his litigation work. His work centers on investigating construction defects, assessing compliance with engineering standards, and evaluating whether proper construction management protocols were followed. Mr. Ali has been retained in numerous expert witness and consulting engagements across Florida, involving cases related to infrastructure design, construction management, and geotechnical engineering. His Ph.D. in Engineering from The City University of New York, along with certifications such as Certified Public Manager (CPM) and Licensed Professional Engineer in Florida, 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 road construction, pavement engineering, and construction quality assurance.

Construction EngineeringArtificial IntelligenceRobotics+8
Construction Defects

Scott Cohen

Owner and President

Chatsworth, CA30 years+ yrs★ 8.7

Scott Cohen, Certified Building Professional is a construction defects expert specializing in swimming pools, landscaping, and hardscape issues. With a career encompassing landscape design, pool construction, and forensic evaluation, he brings a multidisciplinary perspective to litigation work. His work centers on investigating construction defects, assessing compliance with industry standards, and evaluating whether design or installation errors contributed to failures. Mr. Cohen has been retained in numerous expert witness and consulting engagements across California, involving cases related to swimming pools, spas, and landscape design. His Ceramics Major in Ceramics, along with his Certified Building Professional 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 construction defects and safety compliance.

Landscape DesignSwimming PoolsLandscaping+2
Real Estate

Gregory M. Libby

MBA

San Diego, CA31 years+ yrs★ 8.7

Gregory M. Libby, MBA is a real estate expert specializing in commercial and residential real estate litigation. With a career spanning real estate management, development, and investment trusts, he brings a multifaceted perspective to his litigation work. His work centers on investigating property management practices, assessing lease agreements, and evaluating whether industry standards have been met. Mr. Libby has been retained in numerous expert witness and consulting engagements across California, involving commercial real estate, REITs, and property management disputes. His Master of Business Administration from the University of Phoenix, along with his California Real Estate Broker License, 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 commercial real estate and property management.

Property Management
Medical devices

Peter A. Crosby

Global leader and serial entrepreneur in the medical device industry

Aliso Viejo, CA47 years+ yrs★ 8.7

Peter A. Crosby, Bachelor of Engineering, Master of Engineering Science, Fellow of the Australian Institute of Company Directors is a medical device industry expert specializing in intellectual property, biomedical engineering, and product liability litigation. With a career spanning executive leadership, strategic development, and regulatory navigation, he brings a multifaceted perspective to his litigation work. His work centers on investigating intellectual property disputes, assessing product liability claims, and evaluating corporate governance practices. Mr. Crosby has been retained in numerous expert witness and consulting engagements across the United States and Europe, involving cases in the medical device and healthcare industries. His Master of Engineering Science in Biomedical Engineering, along with his Fellowship at the Australian Institute of Company Directors, 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 medical devices and corporate governance.

Commercially reasonable effortsPatentIntellectual property+21
Forensic Accounting

RAND MARK MANASSE, CFE

Expert Witness — Forensic Accounting, Fraud Examination & Financial / Business Damages

New Rochelle, NY★ 8.7

RAND MARK MANASSE, CFE is a forensic accounting and fraud examination expert specializing in financial and business damages. With a career spanning finance, accounting, and operations leadership across diverse sectors such as private equity, turnaround, and renewable energy, he brings a multifaceted perspective to litigation work. His work centers on investigating financial statement fraud, assessing asset misappropriation, and evaluating internal controls failures. Mr. Manasse has been retained in numerous expert witness and consulting engagements across the United States, involving cases in industries such as renewable energy, private equity, and financial services. His MBA in Finance, along with his Certified Fraud Examiner (CFE) 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 financial damages in disputes involving breach of fiduciary duty and corporate governance.

Fraud ExaminationFinancial Damages AnalysisCorporate Governance+3
Computers and Digital Forensics

Ira Victor

Digital Forensics and Information Security Analyst

Las Vegas and Reno, NV34 years+ yrs★ 8.7

Ira Victor, BA, G2700, GCFA, GPCI, GSEC, CGEIT, CRISC is a digital forensics and information security expert specializing in computer forensics and cybersecurity litigation. With a career spanning digital evidence preservation, cybercrime response, and preventive information security, he brings a comprehensive framework to litigation work involving complex digital environments. His work centers on preserving digital evidence, assessing cybersecurity incidents, and evaluating compliance with information security standards. Mr. Victor has been retained in numerous expert witness and consulting engagements across the United States, involving cases in healthcare, retail, and technology sectors. His Bachelor of Arts Degree in Political Science, along with certifications such as G2700, GCFA, and CGEIT, 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 digital forensics and information security.

Meteorology

Bryan A. Mroczka

Certified Consulting Meteorologist / Forensic Meteorologist

Northville, MI★ 8.7

Bryan A. Mroczka, MS/CCM is a forensic meteorology expert specializing in weather event reconstruction and insurance claims. With a career encompassing roles in operational meteorology, research, and consulting, he brings a multifaceted perspective to litigation work. His work centers on investigating severe weather impacts, assessing meteorological data for accuracy, and evaluating whether conditions align with reported damages. Mr. Mroczka has been retained in numerous expert witness and consulting engagements across the United States, involving cases of hurricane damage, slip and fall incidents, and storm-related insurance claims. His Master of Science in Meteorology, along with his Certified Consulting Meteorologist (CCM) 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 severe weather and related damages.

Chemical Engineering

Jennifer Morningstar

Chemical Engineer

Irmo, SC35 years+ yrs★ 8.7

Jennifer Morningstar, B.S.Ch.E., P.E., CFEI is a chemical engineering expert specializing in fires and explosion analysis, chemical release, and exposure incidents. With a career encompassing industrial accident investigation, environmental regulatory compliance, and codes and standards analysis, she brings a comprehensive framework to litigation work involving complex chemical and safety issues. Her work centers on investigating chemical release incidents, assessing compliance with safety standards, and evaluating whether proper procedures were followed in industrial settings. Ms. Morningstar has been retained in numerous expert witness and consulting engagements across the United States, involving industrial accidents, chemical exposure cases, and fire investigations. Her Bachelor of Science in Chemical Engineering from Virginia Polytechnic Institute and State University, along with certifications such as Certified Fire and Explosion Investigator, reinforce her ability to deliver objective, defensible analyses. She is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving chemical engineering and fire safety.

FireChemical Release and ExposureCodes and Standards Analysis+4
Police Practices & Procedures

Dr. Ken Lang

Consultant and Associate Professor

Milligan, Tennessee37 years+ yrs★ 8.7

Dr. Ken Lang, Ph.D. is a criminal justice and forensic art expert specializing in criminal investigations, violent crimes, and police practices and procedures. With a career encompassing law enforcement, higher education, and forensic artistry, he brings a multifaceted perspective to his litigation work. His work centers on investigating criminal cases, assessing use of force incidents, and evaluating police procedures. Dr. Lang has been retained in numerous expert witness and consulting engagements across the United States, involving cases of violent crimes, police practices, and forensic art. His Ph.D. in Criminal Justice from Walden University, along with certifications from the Maryland Police Training Commission and the FBI, 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 and responsibility in disputes involving criminal investigations and law enforcement practices.

Law Enf & Criminal JusticeCriminal InvestigationsViolent Crimes+3
Neurophysiology

Dr. A. E. Du Beau

Neuroscientist

Anchorage, Alaska11 years+ yrs★ 8.7

Dr. A. E. Du Beau, PhD, MS, BS, D-ABP is a forensic neuroscience expert specializing in forensic behavioral evidence analysis and bloodstain pattern analysis. With a career integrating neuroscientific expertise and criminology, she brings a multidisciplinary perspective to her litigation work. Her work centers on investigating forensic behavioral evidence, assessing bloodstain patterns, and evaluating whether neurophysiological factors influenced criminal behavior. Dr. Du Beau has been retained in numerous expert witness and consulting engagements across international jurisdictions, involving criminal cases, violent crimes, and forensic neurobiology. Her PhD in Neuroscience from the University of Glasgow, along with certifications such as Diplomate of the Academy of Behavioral Profiling (D-ABP), reinforce her ability to deliver objective, defensible analyses. She is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving forensic neurobiology and behavioral evidence.

Forensic ScienceForensic behavioral evidence analysisBloodstain pattern analysis+2
Civil Engineering

Michael J. Sheleheda, P.E.

Vice President and Corporate Civil/Site Practice Lead

Monroeville, PA21 years+ yrs★ 8.7

Michael J. Sheleheda, P.E. is a geotechnical and civil engineering expert specializing in foundation design and construction, earthwork, and stormwater management litigation. With a career encompassing diverse engineering projects across commercial, residential, and industrial sectors, he brings a comprehensive understanding of engineering principles to his litigation work. His work centers on investigating foundation failures, assessing stormwater management compliance, and evaluating whether construction practices meet industry standards. Mr. Sheleheda has been retained in numerous expert witness and consulting engagements across the United States, involving real estate, natural gas, manufacturing, and mining sectors. His M.S. in Civil Engineering from the University of Michigan, along with his Professional Engineer 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 geotechnical failures and construction defects.

Geotechnical EngineeringADA AccessibilityDue Diligence/Project Feasibility+14
Real Estate and Property Management

STEVEN D. EPCAR, CPM ®

Principal

Granite Bay, California35+ years+ yrs★ 8.7

Steven D. Epcar, CPM® is a real estate and property management expert specializing in litigation support for standard of care, partnership conflicts, and brokerage issues. With a career spanning asset repositioning, investment feasibility, and organizational assessments, he brings a strategic perspective to litigation work. His work centers on investigating standard of care deviations, assessing partnership conflicts, and evaluating brokerage compliance. Mr. Epcar has been retained in numerous expert witness and consulting engagements across the United States and Canada, involving residential, retail, commercial, condominium, and mixed-use properties. His BS Degree in Business with an emphasis in Real Estate, along with certifications such as Certified Property Manager (CPM) and IREM Managing Distressed Properties Certificate, 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 real estate and property management issues.

Real EstateProperty ManagementReal Estate Management+5
Hotel & Restaurant

Gregory R. Riehle

Consultant, Mediator, Arbitrator

Wesley Chapel, FL44 years+ yrs★ 8.7

Gregory R. Riehle, JD is a hospitality and insurance expert specializing in legal, operational, and insurance matters within the hotel and restaurant industries. With a multifaceted career encompassing roles as a commercial litigator, hotel operator, and insurance executive, he brings a comprehensive legal and operational framework to his litigation work. His work centers on investigating insurance claims, assessing operational compliance, and evaluating whether industry standards have been met. Mr. Riehle has been retained in numerous expert witness and consulting engagements across the United States, involving resort asset management, hotel operations, and insurance disputes. His Juris Doctor in Law from the University of Southern California Law School, along with his active membership in the Florida Bar, 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 hospitality operations and insurance claims.

Insurance
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