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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 415432 of 1,760 experts

Negligent Hiring

Jean L. Seawright, CMC

Certified Management Consultant

Maitland, Florida36 years+ yrs8.6

Jean L. Seawright, CMC is a Human Resource Consulting expert specializing in employment regulations compliance and human resource management. With a career spanning management consulting, executive advisory, and regulatory compliance, she brings a strategic perspective to litigation work. Her work centers on investigating employment practices, assessing compliance with employment laws, and evaluating whether organizational policies align with legal standards. Ms. Seawright has been retained in numerous expert witness and consulting engagements across the United States, involving cases of employment discrimination, harassment investigations, and negligent hiring and retention. Her Bachelor of Science in Chemistry, along with her Certified Management Consultant (CMC) designation, 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 human resource practices and employment law compliance.

Negligent RetentionBackground ChecksADA+19
Acquisitions, Mergers & Dispositions

Douglas E. Johnston, Jr.

Investigative Business Consultant and Litigation Support

Santa Monica, California30 years+ yrs8.6

Douglas E. Johnston, Jr. is an investigative business consultant and litigation support expert specializing in acquisitions, mergers & dispositions, banking & lending, and corporate finance. With a career encompassing executive management, due diligence, and real estate transactions, he brings a strategic and analytical framework to litigation work. His work centers on investigating financial irregularities, assessing corporate finance structures, and evaluating whether industry standards were adhered to in complex financial transactions. Mr. Johnston has been retained in numerous expert witness and consulting engagements across the United States, involving cases in commercial real estate, corporate finance, and international banking. His Bachelor of Science in Economics from Washington and Lee University, along with his education from the Graduate School of Banking at the University of Wisconsin, 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 financial structures and transactions.

Banking & LendingCorporate FinanceReal Estate Finance
Architecture

Anthony Bruttaniti

Architect Expert Witness

Philadelphia, PA44 years+ yrs8.6

Anthony Bruttaniti is an Architect Expert Witness specializing in construction defects, premises liability, and building code analysis. With a career spanning architectural design, construction detail drawings, and compliance with building standards, he brings a comprehensive understanding of safety and regulatory frameworks to his litigation work. His work centers on investigating construction defects, assessing ADA compliance, and evaluating whether building codes have been adhered to. Mr. Bruttaniti has been retained in numerous expert witness and consulting engagements across Pennsylvania, New Jersey, and Delaware, involving cases related to construction defects, slip and fall incidents, and ADA compliance. His Bachelors of Architecture from the New Jersey Institute of Technology, along with LEED Certification and SEAK Expert Witness Training, 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 architectural standards and compliance issues.

Construction DefectsPremises LiabilityBuilding Code analysis+5
Construction

Frank Cumsky

Construction Safety Consultant and Expert Witness

East Brunswick, NJ40 years+ yrs8.6

Frank Cumsky, MBA is a construction safety consultant and expert witness specializing in construction-related injury litigation. With a career spanning project management, site safety coordination, and regulatory compliance, he brings a comprehensive understanding of construction safety standards and legal frameworks to his litigation work. His work centers on investigating construction accidents, assessing compliance with New York State Labor Laws and OSHA regulations, and evaluating whether safety violations contributed to incidents. Mr. Cumsky has been retained in numerous expert witness and consulting engagements across New York, involving construction accidents, safety compliance, and regulatory adherence. His Masters of Business Administration from Baruch College, along with certifications such as the NYC Buildings Site Safety Coordinator License and OSHA 30-Hour Construction Safety and Health Training, 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 safety and compliance.

Safety
Engineering

John H. Hamilton

MSME, PE

Mountainburg, AR33 years+ yrs8.6

John H. Hamilton, MSME, PE is a mechanical engineering expert specializing in product liability, patent, and occupational safety litigation. With a career spanning engineering education, consulting, and industrial safety, he brings a comprehensive understanding of mechanical systems and safety protocols to his litigation work. His work centers on investigating equipment failures, assessing compliance with safety standards, and evaluating whether proper machine guarding and lockout-tagout procedures were followed. Mr. Hamilton has been retained in numerous expert witness and consulting engagements across the United States, involving cases related to machinery safety, industrial accidents, and product defects. His Master of Science in Mechanical Engineering in Thermal Systems, along with his Professional Engineer license in Arkansas, 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 safety compliance.

Mechanical Engineering
Firearms & Ballistics

Donald P. Redl, Jr.

Board Certified Investigator | Use-of-Force & Firearms Expert

Salt Point, NY30+ years+ yrs8.6

Donald P. Redl, Jr., PCI, CFI-FTER is a Use-of-Force & Firearms expert specializing in complex civil and criminal litigation involving firearms training accidents and negligent security. With a career encompassing firearms instruction, scenario-based training, and executive security operations, he brings a multifaceted perspective to litigation work. His work centers on investigating lawful use-of-force incidents, assessing firearms training methodologies, and evaluating negligence in security operations. Mr. Redl has been retained in numerous expert witness and consulting engagements across the United States, involving cases of firearms training accidents and security negligence. His Professional Certified Investigator (PCI) and Certified Forensic Interviewer (CFI-FTER) certifications 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 use-of-force and firearms training incidents.

SecurityUse-of-ForceFirearms Training+2
Structural Engineering

Christopher Klinga P.E.

Solar Product & Project Expert

Boulder, Colorado18 years+ yrs8.6

Christopher Klinga P.E. is a solar structural engineering expert specializing in the structural analysis, integration, and performance of architectural solar solutions. With a career spanning solar product development, structural engineering, and photovoltaic system design, he brings a comprehensive understanding of solar integration challenges to litigation work. His work centers on investigating wind load analysis, assessing solar performance, and evaluating whether building code compliance has been met. Mr. Klinga has been retained in numerous expert witness and consulting engagements across the United States, involving solar PV systems, rooftop solar wind failures, and hybrid ballast systems. His Bachelor of Science in Mechanical Engineering from the University of Colorado, along with his Licensed Professional Engineer designation in Colorado, 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 solar performance and structural engineering.

Construction

Christopher Grundy

Construction Management Professional

Fort Myers, FL40 years+ yrs8.6

Christopher Grundy, LEED AP is a construction management expert specializing in contractual disputes and construction oversight failures. With a career spanning project and delivery management, cost control, contracts and procurement, and sustainability oversight, he brings a comprehensive framework to analyzing construction-related litigation. His work centers on investigating construction delays, assessing contract compliance, and evaluating whether industry standards were met. Mr. Grundy has been retained in numerous expert witness and consulting engagements across the United States, Canada, and South Africa, involving federal, educational, and multi-family construction projects. His BSc. (Hons) Civil Engineering in Civil Engineering, along with LEED Accredited Professional and DBIA Professional certifications, 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 defects, procurement irregularities, and delay and disruption analysis.

Construction EngineeringProject & Delivery ManagementCost Control & Documentation+3
HVAC & Mission-Critical Systems

Tyler G. Colwell

Licensed Mechanical Engineer

Reno, Nevada35+ years+ yrs8.6

Tyler G. Colwell, P.E. is a mechanical engineering expert specializing in HVAC and mission-critical systems, forensic engineering, and machinery failure analysis. With a career spanning HVAC design, mission-critical facilities infrastructure, and forensic diagnostics, he brings a first-principles analytical framework to litigation work. His work centers on investigating HVAC failures, assessing code compliance, and evaluating machinery diagnostics. Mr. Colwell has been retained in numerous expert witness and consulting engagements across the United States, involving data center cooling, code compliance disputes, and machinery diagnostics. His Bachelor of Science in Mechanical Engineering from Cal Poly State University, along with his Professional Engineer license in Nevada and NCEES Record, 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 HVAC systems and mission-critical infrastructure.

Forensic EngineeringMachinery Failure AnalysisCode Compliance+2
Pharmaceutical Research

Per Ingemar Lindell

Sc.D., M.Sc.

Bethesda, MD30+ years+ yrs8.6

Per Ingemar Lindell, Sc.D., M.Sc. is a biopharmaceutical and life sciences expert specializing in drug discovery, clinical development, and biologics manufacturing litigation. With a career spanning management consulting, strategic planning, and operational management, he brings a comprehensive framework to litigation work involving complex biopharmaceutical processes. His work centers on investigating gene therapy development, assessing peptide drug manufacturing, and evaluating whether trade secrets were misappropriated. Mr. Lindell has been retained in numerous expert witness and consulting engagements across the United States and Europe, involving gene therapy, peptide drugs, and cell bank storage disputes. His Doctor of Science in Biochemical Engineering from MIT, along with his Master of Science in Chemical Engineering from the Royal Institute of Technology, Sweden, 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 biopharmaceutical development and manufacturing processes.

DNABiopharmaceuticalsLife Sciences+6
Metals & Manufacturing Expertise

David “Mac” McCracken

Steel and Specialty Metals Manufacturing Expert / Expert Witness

Houston, TX8.6

David “Mac” McCracken, CMI/CQI is a metals manufacturing expert specializing in supplier quality engineering and inspection. With extensive experience across metals mills and metalworking operations, he brings a comprehensive understanding of the manufacturing processes and quality management systems critical to litigation work. His work centers on investigating manufacturing defects, assessing supplier quality compliance, and evaluating whether industry standards were adhered to in complex engineering disputes. Mr. McCracken has been retained in numerous expert witness and consulting engagements across the United States, involving aerospace, automotive, and nuclear industries. His education in Materials Science & Metallurgy, Physics, along with certifications such as Certified Mechanical Inspector (CMI) and Certified Quality Inspector (CQI), 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 metals manufacturing and quality assurance.

Quality ManagementInspection / Testing / Calibration
Civil Engineering

Honglong (Hong) Li

Ph.D, Professional Engineer, Civil

Honolulu, HI26 years+ yrs8.6

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
Standard of Care

David J. Brotman

Senior Corporate Executive

Scottsdale, AZ55 years+ yrs8.6

David J. Brotman, FAIA is an architectural and engineering firm management expert specializing in strategic planning and project management litigation. With a career spanning mixed-use and commercial architecture, strategic planning, and project management, he brings a comprehensive framework to analyzing complex architectural disputes. His work centers on investigating standard of care deviations, assessing construction document compliance, and evaluating whether architectural detailing meets industry standards. Mr. Brotman has been retained in numerous expert witness and consulting engagements across the United States, involving mixed-use and commercial architecture, strategic planning, and project management cases. His B.S. in Architecture from The University of Cincinnati, along with his designation as a Fellow of the American Institute of Architects, 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 architectural and engineering firm management.

Construction DocumentReal EstateSlip trip & fall+19
Refrigeration

Jim Caylor

Consulting Mechanical Engineer

West Fork, AR45 years+ yrs8.6

Jim Caylor, PE is a mechanical engineering expert specializing in NH3 and CO2 refrigeration systems used in process and cold storage applications. With a career spanning industrial refrigeration service, project engineering, and consulting, he brings a multifaceted perspective to litigation work. His work centers on investigating system design failures, assessing regulatory compliance, and evaluating operational safety in refrigeration systems. Mr. Caylor has been retained in numerous expert witness and consulting engagements across the United States and internationally, involving cases related to OSHA and EPA citations, OEM and contractor deficiencies, and refrigerant releases. His BSME in Mechanical Engineering from Arizona State University, along with his registration as a Professional Engineer in 19 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 and responsibility in disputes involving industrial refrigeration systems.

OSHANH3 and CO2 refrigeration systemsSystem design and design review+3
Law Enf & Criminal Justice

Mickey L. Williams

Esq., M.P.A

Vonore, TN29 years+ yrs8.6

Mickey L. Williams, Esq., M.P.A is a law enforcement and criminal justice expert specializing in use of force review, officer involved shootings, and internal affairs investigations. With a career spanning police leadership, legal practice, and academic instruction, he brings a multifaceted perspective to his litigation work. His work centers on investigating officer conduct, assessing policy compliance, and evaluating whether law enforcement actions align with established standards. Mr. Williams has been retained in numerous expert witness and consulting engagements across California, involving police practices, use of force incidents, and internal investigations. His Juris Doctorate in law, along with certifications such as Basic POST, Intermediate POST, and Executive POST, 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 law enforcement conduct and policy adherence.

Police Practices & ProceduresUse of Force Review/Policy/Best PracticesOfficer Involved Shootings+21
Engineering

Donald Hopkins, Jr., P.E., FSFPE

Forensic Services & Litigation Support

Belcamp, MD32 years+ yrs8.6

Donald Hopkins, Jr., P.E., FSFPE is a fire protection engineering expert specializing in forensic analysis and origin and cause analysis. With a career encompassing fire protection system design, code compliance, and standards development, he brings a comprehensive engineering perspective to litigation work. His work centers on investigating fire-related incidents, assessing fire protection system failures, and evaluating whether code compliance was achieved. Mr. Hopkins has been retained in numerous expert witness and consulting engagements across the United States, involving complex fire protection cases and system design disputes. His M.S. in Fire Protection Engineering, along with his registration as a Professional Fire Protection Engineer 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 fire protection systems and code compliance.

FireForensic analysisOrigin and cause analysis+3
Trusts & Estates

Daniel (Dan) FitzPatrick

JD, TEP, MCIT

Greenwich, Connecticut30+ years+ yrs8.6

Daniel (Dan) FitzPatrick, JD, TEP, MCIT is a fiduciary (trust & estate) duties and liabilities expert specializing in fiduciary litigation. With a career spanning fiduciary leadership roles at premier financial institutions, he brings a strategic perspective to litigation work involving complex trust and estate matters. His work centers on investigating fiduciary breaches, assessing trustee responsibilities, and evaluating whether industry standards have been met. Mr. FitzPatrick has been retained in numerous expert witness and consulting engagements across state and federal courts, involving fiduciary breach claims, trust administration disputes, and estate management cases. His JD from Vanderbilt University, along with his Master Certified Independent Trustee 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 responsibility in disputes involving fiduciary duty and trustee liability.

Dispute Resolution
Special education advocacy

Dr. Steve C Imber, LLC

Special Education Expert

Fresh Meadows, NY48 years+ yrs8.6

Dr. Steve C Imber, LLC is a special education expert specializing in special education advocacy and consultation for children with disabilities. With a career spanning nearly five decades, he brings a nuanced understanding of the educational and psychological needs of children with disabilities to his litigation work. His work centers on investigating compliance with the Americans with Disabilities Act (ADA), assessing educational accommodations, and evaluating whether educational institutions meet required standards for children with disabilities. Dr. Imber has been retained in numerous expert witness and consulting engagements across the United States, involving cases related to the Americans with Disabilities Act, disability rights, and educational institutions. His doctoral degree from the Department of Educational Psychology with a focus on Emotional and Behavior Disorders at the University of Connecticut, along with certifications as a teacher of children and adolescents with disabilities, a school psychologist, and an administrator of special education, 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 special education and disability accommodations.

Consultation for children with disabilities
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