expert witness testimony

Rangeland Conservation Science is a small consulting company composed of highly trained rangeland professionals, all with degrees in rangeland ecology and management, and six with the California Certified Rangeland Manager license. Its technical specialization, developed over the past 25 years, includes grazing management planning, rangeland monitoring, technical assessments and advising, and supervision of grazing, with specific knowledge of California rangeland ecology and management.

grazing infrastructure assessmentgrazing lease advising and supervisiongrazing management planningmappingplant surveysrangeland monitoringresearchresidual dry matter monitoringsupervision of grazingtechnical assessments and advising

Forensic Analysis & Engineering Corporation (FAEC) has provided worldwide forensic investigations, analysis, and prevention recommendations for over 50 years, since 1966. Its team of forensic engineers, scientists, and specialized experts serves insurance, legal, and private industry clients, establishing why events occurred and how to prevent them.

accident reconstructionevidence collection and storagefailure analysisfinite element analysisForensic engineeringgeotechnical sampling and testinghardness testingincident simulationsmaterial impact testingstress analysistensile testing

Forensic Analytical Crime Lab is an independent, multi-disciplinary forensic laboratory based in Hayward, California, operating since 1994. It provides forensic consultation and analytical casework for criminal and civil investigations, specializing in the identification, analysis, and interpretation of physical evidence, and serves criminal justice communities nationwide.

bloodstain pattern analysisbullet trajectory analysiscrime scene reconstructionDNA testingfirearms function testingfiring distance determinationgunshot residue analysispaternity/kinship testingprobabilistic genotypingserial number restorationtire/footwear impression analysistoolmark comparisontoxicology review

Forensic Economics is an independent consulting firm providing and supporting expert witness testimony, performing economic analyses since 1989. Its experts have testified in the United States, Canada, Australia, Switzerland, and the United Kingdom, and have been retained by the SEC, DOJ, IRS, and law firms worldwide.

damages analysisdiscounted cash flow analysisEconomic Analysisintellectual property analysismultiples analysissecurities litigation analysistransfer pricingvaluation

Forensic Investigations Group, LLC is a family owned business started in 2006 by internationally recognized specialized investigators. It is the first commercial U.S.-based organization to obtain A2LA ISO/IEC 17020 accreditation for Fire and Explosion Origin and Cause Investigation. The team investigates fires and explosions to determine origin and cause, collects evidence, and provides expert deposition and trial testimony in local, state, and federal courts.

bench-scale testingevidence collectionexplosion analysisFire investigationfull-scale fire recreationlaboratory analysisresearch burningtraining and lectures

Forensic Pieces, Inc. was established in 2000 by Jan Johnson, a Certified Senior Crime Scene Analyst who spent her career with the FBI, FDLE, and Escambia County Sheriff's Office. It began as a forensic training company serving law enforcement, governmental, and educational facilities, and later expanded into reviewing, examining, testing, and testifying in criminal, civil, and private cases as a forensic expert/consultant. In 2009 it moved to a bigger facility to begin in-house lab processing.

bloodstain pattern analysiscrime scene investigationcrime scene reconstructionforensic entomologyforensic photographyForensic trainingin-house lab processinglatent print identification and comparisonshooting reconstruction

FP Consultants is a network of independent forensic psychology consultants founded by Dr. Michelle Drouin. Its experts provide trial consultancy and expert witness testimony in criminal and civil court systems, including a specialty in military courts-martial, with experience on both plaintiff/prosecution and defense sides as well as university administrative proceedings.

author attributionevidence review and assessmentin-court consultationinterviewing and interrogationpretrial consultationpsychological evaluation and assessmentpsychosocial profilingrecidivism analysis

Forest Environmental Solutions, LLC (FES) is a forestry and land management consulting firm based in Dade City, Florida, established in February 2008. It provides forestry and land management consulting services to non-industrial private landowners, municipalities, counties, water management districts, and State and Federal agencies throughout Florida.

afforestation and reforestationforest management planningmappingmitigation, reclamation and restorationprescribed burningsite maintenancesite preparationtimber sale assistancetimber valuationwildlife habitat management

ForSci Associates, LLC is a privately held firm headquartered in Denver, CO, dedicated to providing superior customer service for criminal analysis and forensic educational needs. They provide Forensic DNA expert witnesses to criminal and civil cases, educational training to domestic and international clients, and forensic testing services handled on a case-by-case basis in consultation with accredited partners. They have worked on criminal and civil cases in the U.S. and Europe and have testified as experts in Forensic DNA testing.

forensic DNA testingForensic training

FPLS Engineering is a fire protection and life safety engineering firm whose engineers are licensed exclusively in Fire Protection Engineering. The firm designs fire protection and life safety systems for complex, mission-critical facilities including industrial plants, military installations, diplomatic facilities, pharmaceutical labs, and university campuses, and provides code consulting across federal and military code systems such as UFC, OBO, and GSA.

code consultingfire detection and alarm designfire protection system designfire, smoke and egress modelinghazard analysishydrant waterflow testingindustrial hazard assessmentmass notification system designspecial inspectionswater supply analysis

Dr. Francesca A. Lehman is a licensed clinical and forensic psychologist in California with over twenty years of experience conducting forensic psychological evaluations of children, adolescents, and adults for state, federal, military, family, criminal, juvenile, and civil courts. She is the Director of Forensic Training for the Psychiatry Residency Program at Family Health Centers of San Diego and has been qualified as an expert witness over 50 times in multiple California jurisdictions. She earned her Doctor of Psychology in Clinical Psychology in 200

child and adolescent assessmentcompetency evaluationsforensic psychological evaluationsrisk assessments

Fusion Systems Engineering DPC is an engineering firm in Albany, NY specializing in mechanical, electrical, plumbing, and fire protection (MEP/FP) design and consulting services throughout the Northeast. The firm offers commissioning, LEED and sustainability consulting, energy services, BIM coordination, system troubleshooting and forensic investigation, and expert witness testimony. Its team of licensed engineers brings decades of experience and uses BIM tools such as Revit and AutoCAD MEP.

BIM coordinationCAD/BIM draftingcommissioningEnergy ModelingForensic engineeringLEED consultingMEP/FP designRetro-Commissioningvalue engineering

FyInc is a licensed private investigative firm based in Springfield, Missouri, providing Technical Surveillance Countermeasures (TSCM) bug sweeps and investigative services across Missouri. It serves attorneys, corporations, and individuals with legally grounded intelligence, signal analysis, and forensic discovery, and holds an active SAM.gov registration and Missouri Private Investigator license #2023043228.

asset investigationsbackground checksdigital forensicsfraud investigationsprocess servingskip tracingsurveillanceTSCM bug sweeps

General Appraising & Consulting Services, Inc. (GACS) is a full-service real estate appraisal firm serving the far Western North Carolina region. Founded in 2001, the firm provides valuation services to lenders, government entities, attorneys, accountants, insurance companies, and individuals, and has experience as an admitted expert witness in state and federal courts.

appraisal reviewlitigation supportreal estate appraisalUSPAP-compliant appraisalsYellow Book appraisals

George David Gopen, J.D., Ph.D., Professor Emeritus of the Practice of Rhetoric at Duke University, created the Reader Expectation Approach (REA) to writing in the English Language. He is a writing consultant, author, and educator who has trained tens of thousands of professionals at 225 leading institutions. REA is based on how readers look for critical information in specific structural locations within sentences and paragraphs.

consultinge-learningseminarsworkshopswriting training

Consultant to U.S. and international construction companies and consulting engineering firms as well as many public owners, providing design-build (DB), construction manager/general contractor (CMGC), and construction manager-at-risk (CMR) contracting, value engineering, complex project management, contract dispute resolution, arbitration, and expert witness testimony services. Also provides custom designed professional continuing education on alternative project delivery, cost engineering, contract administration, and other construction management topic

Arbitrationcomplex project managementconstruction managementcontract dispute resolutiondesign-buildmediationprofessional continuing educationvalue engineering

Licensed clinical psychologist providing clinical and forensic assessment since 2009. Licensed in Maryland, Virginia, and Washington DC, and authorized to practice via PSYPACT in 40+ states and jurisdictions. Owner of Pay It Forward Assessments, LLC, a private practice in Montgomery County, Maryland. Expertise includes complex differential diagnosis, personality assessment, cognitive assessment, and work with neurodivergent individuals including 2e, autistic, ADHD, and intellectually disabled clients.

cognitive assessmentforensic assessmentpersonality assessmentpsychological assessmentRorschach assessmenttelepsychology via PSYPACTworkshops and in-service training

Hendrickson Appraisal Company has provided professional real property valuation consultation since 1986. The firm provides full-service real estate valuation services for conventional and complex assignments throughout Southern and Central California and Arizona, specializing in commercial, industrial, multi-residential, tideland/waterfront, vacant land, and subdivision properties, as well as large multi-parcel assignments in compliance with eminent domain law. Senior appraisers hold MAI and AI-GRS designations and are licensed Certified General Real Est

appraisal revieweminent domain valuationlease arbitration valuationreal estate appraisalright of way budgeting studiesright of way risk studiesright of way valuation

Heritage Architectural Associates is an award-winning full-service architectural firm specializing in architectural restoration, additions to historic structures, new design within historic contexts, and downtown revitalization. The firm restores, revitalizes, preserves and protects architectural assets, taking an architectural resource, finding a new use for it, and preserving the building's architectural authenticity, character and spirit.

adaptive use of historic propertiesarchitectural restorationbidding administrationconstruction administrationConstruction documentsgrant writingHABS documentationhistoric architectural surveysNational Register nominationspreservationrevitalization

Hexordia conducts digital forensics and offensive security services, training, and research, and is a key reseller of digital forensics tools and technologies. Founded by Digital Forensics Examiner Jessica Hyde, the company provides specialized digital forensics training with a focus on mobile forensics, and supports the US federal government, having performed contracts for the Department of Defense and Department of Justice.

analysisdevice acquisitiondigital forensicsexpert exploitationmobile forensicspenetration testingreportingtrainingvulnerability assessments

Hicks & Company Environmental/Archeological Consultants is a small, woman-owned environmental consulting firm providing environmental management and planning services throughout Texas and the southwest since 1988. Its staff includes ecologists, archeologists, social scientists, planners, cartographers, architectural historians, noise and air quality specialists, professional geoscientists, and an environmental attorney supporting compliance with NEPA, the Clean Water Act, the Endangered Species Act, and the National Historic Preservation Act.

air quality analysisarcheological survey and data recoveryecological surveysenvironmental permittinggeologic assessmentsGIS mappinghabitat conservation planningNEPA documentationtraffic noise modelingwetland delineation

HKA is a leading global consultancy in risk mitigation, dispute resolution, expert witness services and litigation support. As trusted independent advisers, consultants and experts, it helps clients manage compliance, risk, disputes and uncertainty on complex investigations, contracts and challenging projects, with hundreds of subject-matter experts across 45+ offices in 17 countries.

Business Valuationcompliance and risk advisoryconstruction delay and disruption analysisconstruction quantum analysisCybersecurityData and Advanced Analyticsdigital forensicseconomic damages analysiseDiscoveryForensic AccountingForensic engineeringinternational arbitrationinvestigations

Homeyer Consulting Services, Inc. is a global water consulting firm and the country's largest independent industrial water consulting laboratory, specializing in HVAC and process-related waters. It operates a multimillion dollar laboratory dedicated to testing treated water and a structured team of field consultants who consult to over 6,800 sites worldwide. It does not sell chemicals; it helps clients manage water treatment vendors and protect equipment from corrosion, deposition, and biological fouling.

borescope inspectionscorrosion coupon testingFTIR analysislaboratory analysisonsite samplingparticle analysisPCR Legionella testingSEM analysisultrasonic pipe testingwater system audits

Horwitz & Associates LLC is a legal nurse consulting firm that bridges the gap between healthcare and law. Led by a Certified Legal Nurse Consultant, it provides medical record and case analysis, expert witness opinions, and trial testimony to help attorneys win or favorably settle medical cases while saving time and money.

case merit analysisdeposition preparation supportmedical expert locationmedical record analysisstandard of care evaluation