Expert Witnesses & Forensic Consultants Directory
Expert Witness Directory
An intelligent evaluation of facts in matters under trees litigation often requires the application of some scientific, technical, or other specialized knowledge. The most common source of this knowledge is the expert witness.This free expert witness directory profiles those trees professionals certified in fields of knowledge which may be drawn upon to assist the trier of fact, experts and forensic consultants who may serve in civil or criminal matters, for plaintiff or defense.
These experts may be found by keyword search, their board-certified category of knowledge or area of litigation.
Attorneys may contact us for in-depth profiles of friendly and adverse expert witnesses alike.
About 51 results (0.16 seconds)
Tree & Plant Appraisals
Certified Arborist, 38 years, experienced expert witness, provides appraisals, valuations, forensic arboriculture, consulting in tree damage, plant health care, neighbor disputes, risk assessment, urban forestry, wrongful removal, landscape damage, etc. [Non-public Profile Id 54728]
Los Angeles, CA
Areas of Expertise:
Trees & Arborists; Tree & Plant Appraisals; Arborists
Limited public information. For more, contact us.
Istvan Jonyer, Ph.D. - Telecommunications, Networking
Telecommunications, networking, data communications, mobile networking, and networking protocols expert. Experienced testifying expert with 25+ cases.
Los Angeles, CA
Gregory W. Applegate
Independent Registered Consulting Arborist, Certified Arborist ISA Tree Risk Assessment & Tree & Plant Appraisal Qualified, 45yr experience, decay analysis, tree preservation reports, root damage studies, tree/palm health, construction mitigation,
Tustin, CA
Stephen George * Landscapes West
California Landscape Contractor provides landscape construction, horticulture, and arboriculture expert witness services, including landscape construction defect and personal injury, inspection, forensic imaging, repair and replacement estimates.
San Diego, CA
Roy C. Leggitt, III, Consulting Arborist
Arborist, 25+ yr, provides tree health assessment, tree failure, tree damage, tree hazard assessment, tree protection planning, tree preservation in construction, tree inventory, municipal tree management and arborist report expert witness services.
San Francisco, CA
David D. Hunter, RCA — David D. Hunter, Consulting Arborist, LLC
Consulting Arborist, 40+ yr experiences providing plant appraisals, tree damage/ risk assessments, tree forensics, tree health/ risk assessments, consultations on timber trespass, and serves as an expert witness in arboriculture, servicing western USA.
Forest Grove, OR
Christopher Hanson, Esq., CCIM — Real Estate Mediation Service, LLC
45+ years as a Calif RE broker(CCIM) and Atty, now providing expert witness services in real estate standards of care and practices, including RE ethics, agency relationships, fiduciary duty, due diligence and (non-)disclosure, professional (mis)conduct.
Carson City, NV
John Sevier — Court Qualified Tree Expert
Certified Arborist, Limb Break, Whole Tree Failure, assessment, Power Line Contact / Electrocution of tree trimmer or tree climber -- Also served as paid consultant/ intervenor for the California Public Utilities Commission //GO.95 rule 35 tree-clearance
New Braunfels, TX
Areas of Expertise:
Accident Investigations
Tel: (830) 629-4444
Limited public information. For more, contact us.
Chester M. Cedars MD — Lone Tree Family Practice
Board certified in Family Medicine, in private practice, performs vasectomies, skin lesion removals, biopsies and orthopedic procedures, and provides expert witness opinions and trial testimony
Lone Tree, CO
Areas of Expertise:
Family Medicine
Tel: (303) 225-0025
Limited public information. For more, contact us.
Steven D. Geist, Arborist
Plant Pathologist, Registered Consulting Arborist and Certified Professional Agronomist specializes in working with urban landscapes, diagnosing plant and tree problems, causation for demise including biotic and abiotic disorders and landscape valuations
Denver, CO
Areas of Expertise:
Trees & Arborists; Tree & Plant Appraisals; Arborists
Tel: (303) 337-6200
Limited public information. For more, contact us.
Donald H. Godi & Associates, Inc.
40 years of experience as a Landscape Architect (CO License #6), and Arborist (RCA #444), and a Horticulturist, as well as years evaluating and testifying in landscape/tree disputes, qualify Donald H. Godi as a dependable, trusted expert witness.
Golden, CO
Ivan Katzer
Master Arborist provides expert witness services in tree and landscape matters including: accident investigations; valuations; eminent domain; tree protection during construction; insect and disease identification and management; risk assessments
Kansas City, MO
Areas of Expertise:
Commercial Real Estate
Tel: (816) 726-5127
Limited public information. For more, contact us.
Arborist Expert Witness — Daniel J. Maple
Mr. Maple has provided ethical, scientifically sound, arboriculture solutions for 30+ years. His investigations into the tree failures and the experience gained, makes him uniquely qualified among his peers, as a risk assessor and expert witness.
Spokane, WA
Harry Direen, PhD, PE
Electrical engineer, 40+ yr, specialized in control systems, embedded systems, digital signal processing, software design/development, electronic hardware design/development, product reverse engineering and patent forensics. Experienced expert witness.
Colorado Springs, CO
Max J. Scott — The Forensic Trio, Inc.
Forensic event reconstruction of 1) motor vehicle events: rollovers, pedestrian/bicycle, seating position; 2) violent events resulting in injury or death to include bloodstain analysis, ballistics, etc., 3) reconstruction of photographs (photogrammetry).
Boulder, CO
Mark A. Webber, Registered Consulting Arborist & Board-Certified Master Arborist
Mark Webber is a Board-Certified Master Arborist and Horticulturist with nearly 47 years of relevant professional experience. He provides investigations, reports, and testimony in matters related to Tree and Horticultural matters.(Available Nationwide)
West Chester, OH
Bradley Layton, PhD, PE
Mechanical/Biomedical Engineer, 25+ yr, consults in biomechanics, biomedical, structural engineering, incl. issues of diabetes, fracture, nanotechnology, neurology, sports, renewable energy tech. Faculty in Biophysics, Biochemistry and Energy Technology
Missoula, MT
Edward F. Steigerwaldt, ACF — Steigerwaldt Land Services, Inc.
Forester and real estate appraiser, 40+ yr, provides expert witness appraisals of waterfront, recreational, forestland, residential, commercial, industrial property; easements, trees and landscaping, Christmas trees, right-of-way acquisitions.
Tomahawk, WI
Areas of Expertise:
Agriculture, Forestry & Fishing
Tel: (715) 453-3274, ext. 313
Limited public information. For more, contact us.
J. David Hucker, Registered Consulting Arborist
Arborist experienced in the diagnosis and valuation of trees and landscaping issues provides litigation support and expert witness testimony in matters of: tree longevity, potential risk, monetary value, hazard tree assessments; appraisals; etc.
Berwyn, PA
Robert P. d’Ambrosio — Ambrose Laboratories Ltd.
Forensic Tree Pathologist, specializing in trees and shrubs disorders, with private research lab, provides expert witness testimony in tree, shrub incl. valuations, assessments of disorders and injuries, and all other phases of plant pathology.
Eastchester, NY
John R. Hosbach, RCA
Registered consulting arborist and certified arborist, 15+ yr, provides tree care programs, appraisals, hazard assessments, tree valuations, insect and disease diagnosis, and expert opinions on tree-related failures, wrongful removal, eminent domain, etc.
Ridley Park, PA
Burton W. Smeltzer, The Tree Consultant
Expert witness in arboriculture, including property damage, wrongful death, construction and utility damage, tree and plant appraisals, tree preservation; and pesticide & herbicide damage appraisals.
Chesapeake, VA
Areas of Expertise:
Trees & Arborists; Tree & Plant Appraisals; Arborists
Tel: (757) 436-0957
Limited public information. For more, contact us.
Landscape Economics, LLC
Areas of Expertise: Landscape & Tree & Forest Damage Assessments and Values, storm damage assessments, landscape & tree industry standards & regulations or codes, contractor negligence, utility line clearance standards & practices.
Hollywood, FL
Areas of Expertise:
Landscaping
Tel: 954 986 9405
Limited public information. For more, contact us.
Shade Tree Meteorology, LLC
Certified Consulting Meteorologist (AMS Certificate #632) Specializing in extreme weather events and radar interpretation, including forensic weather reports and expert testimony.
Cropseyville, NY
Christian J. Plunkett — Consulting Arborist
ISA Board Certified Master Arborist #NJ-0853B, 14 years of experience in the fields of arboriculture and urban forestry, Member ASCA: Tree Risk Assessment, Tree Valuation, Casualty Appraisals, Expert Opinion and Litigation Support.
Hillsborough, NJ
Kenneth Johnner — Johnner Tree Diagnostics
Board Certified Master Arborist (I.S.A. NY0199BU) and Registered Consulting Arborist (ASCA RCA #406) specializes in tree related consulting, report writing and expert witness testimony and performs some residential and training work also.
Winthrop, NY
Areas of Expertise:
Agriculture, Forestry & Fishing
Tel: (315) 323-0153
Limited public information. For more, contact us.
Wind Tree Damage Expert — Chris J. Peterson, PhD
Internationally-recognized expert in wind damage to trees and forests with 25+ yr. research experience in multiple states with 50+ scientific papers published in peer-reviewed journals. Full professor, Department of Plant Biology at University of Georgia.
Athens, GA
Areas of Expertise:
Trees & Arborists; Tree & Plant Appraisals; Arborists
Tel: (706) 542-3754
Limited public information. For more, contact us.
Rodney G. Richmond, MS, PharmD, BCGP, FASCP, DASPL — The Mackenzie Group
Pharmacy expert provides litigation support in matters involving pharmaceutical standards of care, geriatric drug therapy, long-term care, clinical pharmacy services, drug safety, medication errors, clinical pharmacology and pharmacy operations.
Searcy, AR
David Gossman - Gossman Forensics
David provides technical assistance in litigation involving chemical / environmental forensics; laboratory testing; regulatory compliance; hazardous materials handling, injury or chemical exposure claims; fires or explosions including hazardous waste.
Maquoketa, IA
Russell E. Carlson, RCA, BCMA — Tree Tech Consulting
Registered consulting arborist, ISA Board Certified Master Arborist and forensic arborist provides expert litigation support in: forensic investigations; appraisals and valuations; diagnosis; risk assessments and hazardous tree inspections;
Bear, DE
Michael L. Van Durme, Police Capt., Retired — Hunting and Shooting Related Cons.
Provides hunting incident investigations and consulting in matters of using and teaching the safe use of archery equipment, crossbows, handguns, rifles, shotguns, muzzleloaders and related hunting and shooting equipment (eg: tree stands and decoys).
Dansville, NY
Steve Roensch – Roensch & Associates
Steve Roensch is a mechanical engineering consultant with 44 years of professional experience. He has analyzed hundreds of product designs and has served as an expert witness in 92 cases, testifying 25 times at deposition, court or arbitration.
Fox Crossing, WI
Dale R. Wheeler, PE — Systech Fire Protection, LLC
Engineer provides specialized fire protection, life safety design, and code consulting services, including expert witness services in: fire protection system design, fire cause and origin, arson, fire and smoke barriers, fire resistant materials
Palos Park, IL
Herbicide & Horticulture Expert — Dr. Hannah M. Mathers
Horticulturist, 30+ yr., herbicide expert, provides expert witness consulting, testing, written reports, site inspections, statistical analyses in horticulture, pesticides, agriculture chemicals, environmental sciences, and assessment and evaluation.
Gahanna, OH
Carsten W. Glaeser, PhD
Senior Consulting Arborist, expert in horticultural troubleshooting, plant selection and placement, restoration ecology and soils, tree health, risk and liability concerns, arboricultural industry standards. Member American Society of Consulting Arborists
Flushing, NY
Areas of Expertise:
Landscaping
Tel: (347) 732-4003
Limited public information. For more, contact us.
Griffith Engineering & Consulting, Inc.
Roger Griffith provides forensic investigations and expert witness services for cases involving HVAC, plumbing, and sprinkler system failures and disputes.
Jefferson City, TN
Dr. Akram Alashari - General/Trauma Surgeon and Surgical Intensivist
Dual board certified in General Surgery and Surgical Critical Care. I provide medical expert opinion on standard of care and medical malpractice cases. Areas of expertise include trauma surgery, abdominal surgery, and surgical critical care.
Saginaw, MI
Ewen Todd, President, Ewen Todd Consulting
Food public health expert, 55 yr, experienced in research, prevention, surveillance, risk in food science, involving foodborne illness, poisoning and toxicology, in government public health and academia, serves as an expert witness in US and Canada.
Okemos, MI
Frank Ferrantello - PLS, CE
New York State Licensed Land Surveyor, 24+ years providing expert surveys, diagrams, exhibit’s, and testimony in matters of trip and fall, tree damage, flood building damage, traffic accidents, public and private property damage, wrongful death suits.
Plainview, NY
Areas of Expertise:
Land Surveying
Tel: (516) 248-2766
Limited public information. For more, contact us.
Dana J. Heimdahl Chernault, MS, CSP, REM
Safety Professional, 35 years of experience, expert in OSHA/occupational safety; MS Risk Control, Certified Safety Professional (CSP), and Registered Environmental Manager (REM)
Port Charlotte, FL
Christine E. Carrigan, PE, PhD
Run-off-road crashes for all vehicle types, crashes with barriers (e.g., guardrails, bridge rails, median barrier) and end treatments, terminals, impact attenuators, crash cushions, tree/pole crashes, rollovers, highway design and construction.
Canton, ME
Tim Keane — Legionella Risk Management, Inc.
Engineering Expert in Legionella and other waterborne pathogen issues related to building water systems including; litigation support, outbreak response, remediation, compliance, implementation & management of water management plans.
Chalfont, PA
John Mclean Architect
Architect, industrial designer provides expert testimony in: architecture, design, engineering, standard of care for professional practice; construction claims; land use, zoning; commercial buildings, prototype stores, hotels, residential building types
White Plains, NY
Brian M. Sowers, MBA, Principal - Applied Marketing Science, Inc.
Customer Survey Expert. Manages market research engagements for complex cases, including trademark and trade dress infringement, class action matters, false and deceptive advertising, and patent damages as well as critiques of opposing expert reports.
Burlington, MA
David D. Lewis, PhD
Not currently seeking expert witness work.
Lakewood, CO
Carl Weil — Wilderness Medicine Outfitters
300+cases civil & criminal, archery, bow, arrows- firearms-target, hunting, youth camps, guiding, guide training, rock climbing-gyms&outdoors-mountaineering, equine activities, horse events, trail rides, stables, guest& working ranches, cattle
Elizabeth, CO
Jeffrey Lapin, CPM, ARM, DREI
Expert Witness - Commercial and residential property management, landlord liability, standard of care, inspection and maintenance issues
Spring City, TN
Dr. J. Nigel Ellis, PhD, CSP, PE, CPE
Forensic engineer (40+ yr) expert in fall protection and safety engineering including equipment design and manufacturing, provides expert witness services in: fall hazard assessments in facilities and construction sites, OSHA regulations, ANSI standards
Wilmington, DE
Stuart M. Statler — Safety Strategies
Product Safety Consultant and former Commissioner of the U.S. Consumer Product Safety Commission with specialized expertise in: product safety & regulatory analysis; product liability; risk assessment; recalls; mfr/retailer/supplier responsible practi
Mooresville, NC
Rudi O. Sherbansky, P.E., ASPA Engineering LLC
Evaluation of unsafe conditions, duty of care and code compliance of properties, construction defects, trip, slip and fall incidents, causes of construction injuries, building explosions, collapse, water, fire damage liability, casualty defense
New York, NY