Construction (General) Consultants: 47

Due Diligence Professional Services, Inc. (DDPSI) is a Construction Consulting and Expert Witness Firm that Specializes in Supporting Litigation and Representing Clients for Renewable Energy, Power, Heavy Civil, Underground Utilities, Building and other related Construction Specialty Projects. They are a diverse team with construction claims and project management expertise who value the importance of relationships and continue to distinguish themselves by showing clients that Experience + Talent + Strategy = Results.

DDPS support s owners, law firms, contractors and engineers, in both a consulting and expert witness capacity by utilizing the practical job knowledge that they have gained over the years. Their consulting principals are experienced with large, complex projects incorporating conventional-phased, fast-track projects. Their unique experience and qualifications have allowed them to utilize practical skills developed during on-the-job experience, which has proven to be invaluable when analyzing contractual liability and quantifying the effects in mitigating, defending, or pursuing claims.

Consulting Services: PROJECT MANAGEMENT - CLAIM DEVELOPMENT - RISK ASSESSMENT - ESTIMATING

Areas of Expertise:

• Renewable Energy - Utility Scale Wind, Utility Scale PV Solar, Utility Scale Concentrated Solar Power, Biomass and Battery Storage
• Heavy Civil - Earthwork, Roads, Bridges Highways and Airports
• Power - Transmission, Distribution and Substation/Switching Yards
• Underground Utilities - Water, Reclaimed Water, Storm Drainage, Sanitary Sewer/Lift Stations, and Force Main
• Buildings - Commercial, Institutional, Industrial, and Heavy Civil
• Construction Specialties - Dewatering, Directional Drilling/Jack and Bore, Low Pressure Sewer, Fiber Optic Systems, Reinforced Earth Wall, Sound Barrier Wall, Telecommunication Infrastructure, Transformer – RCA of failures and Transmission Line Pole Remediation

Nicholas Fiduccia is President and Co-Founder of Due Diligence Professional Services, Inc. a Florida based expert witness service, construction claims specialist and project management consulting firm that focuses its practice on law firms, owners, engineering, construction firms, and contractors performing renewable energy, power, heavy civil, underground utilities, building and other related construction specialties.

Mr. Fiduccia has over 30 years of U.S. and Canadian construction experience involving construction contract disputes analysis and resolution, arbitration/litigation support and expert testimony, project management, engineering/construction management, cost and schedule control, and value-engineering.

Before co-forming Due Diligence Professional Services, Inc, Mr. Fiduccia had corporate-wide responsibility for technical management and oversight for the preparation and resolution of construction claims for 11 years for a utility-scale renewable energy and heavy civil infrastructure contractor, plus over 19 years of hands-on experience to ensure that profit, cost, schedule, scope, quality, and safety objectives were achieved for renewable energy, power, heavy civil, underground utilities, building and other related construction specialty projects.

Ron Ritter, Vice President and Co-Founder of Due Diligence Professional Services, Inc. has been responsible for on-site project management for Wind, Solar, Battery Energy Storage System (BESS) Projects, Heavy Civil Projects, and Underground Utility Projects over the last 25 years.

Mr. Ritter’s expertise in a full array of self-perform and key subcontractor oversight has allowed him to execute multiple EPC contracts successfully and safely.

Before co-forming Due Diligence Professional Services, Inc, Mr. Ritter successfully built a career in the construction industry that consisted of 45 years of hands-on, field experience.  Twenty (20) years of that field experience has been spent building and supervising the construction of renewable energy facilities.  Seventeen (17) years of his construction career have been spent as the senior field representative, directly responsible for the safe, timely, profitable and quality construction of 15 wind farms in the USA totaling 2,465 megawatts.  Mr. Ritter has also worked on and supported the construction of wind farms and solar farms in Canada. 

View Due Diligence Professional Services, Inc.'s Expert Witness Profile.

Electrical Safety Group Inc. provides consulting services in Occupational Electrical Safety for matters critical to electrical safety, including:

• Codes
• Standards
• Regulations
• Safe Work Practices
• Management Systems
• Inherently Safer Designs
• Reliability

Click here for my current CV

Partner and Principal Consultant, H. Landis “Lanny” Floyd II, PE, CSP, CMRP, CRL, CESCP, Life Fellow IEEE, has over 45 years of experience in Electrical Safety in the Workplace. His work has advanced the application of Human Factors Engineering, Electrical Technology, and Safety Management Systems in preventing occupational electrical injuries. 

Mr. Floyd retired from DuPont in 2014, holding the positions of Principal Consultant - Electrical Safety & Technology, and Global Electrical Safety Competency Leader. For more than 35 years, Mr. Floyd has focused on electrical safety in the construction, operation, and maintenance of industrial and commercial facilities. This included safety management systems, competency renewal, work practices, and the application of technologies critical to electrical safety performance. From 1992 to 2014, he led the team that designed and facilitated implementation of a strategy for continuous and sustainable improvement in occupational electrical safety for DuPont Global Operations. This work enabled breakthrough performance in prevention of serious injuries and fatalities from electrical energy in DuPont facilities worldwide. In 2013, Mr. Floyd was invited to join the faculty at the University of Alabama at Birmingham, where he teaches in the Advanced Safety Engineering and Management Master of Engineering degree program. 

Author / Speaker - Actively involved in professional organizations spanning electrical engineering, occupational health and safety, and maintenance and reliability, Mr. Floyd has authored or co-authored more than 70 papers and articles and has given more than 150 presentations at conferences, seminars and webcasts in his work to advance the practice of electrical safety. He has been an invited speaker on electrical safety in Australia, China, Brazil, Western Europe, and throughout North America. 

View Lanny Floyd's Expert Witness Profile.

• Structures, Buildings, Houses, Dwellings
• Foundations, Footings, Elevators, Retaining Walls, Dams
• Development Plan & Plats for Sites, Properties, and Residences
• Underground & Subsurface Chamber / Chambers
• Scaffold, Scaffolds, Scaffolding
• Site Plans & Subdivisions: Industrial, Commercial, Residential
• Roads, Roadways, Ramps, Walks, & Man Hole Cover / Covers
• Sidewalks, Walkways, Paths & Pathways
• Lighting: Lamps, Lights, Lamp Poles, Light Levels
• Luminaries & Illumination (Specifications)
• Rock Cuts & Blasting (Topography, Specification)
• Soil Slopes / Samples / Mechanics / Geotechnical Engineers
• Sanitary Facilities, Septic Systems (Board of Health Septics Approval)
• BOHA / DEP Approvals
• Water, Drains, Drainage, Sewer & Sewage Lines & Mains
• Culvert / Culverts, Manholes (Man Holes) & Catchbasins / Catch Basins
• Inspection, Supervision, and Certification of Construction
• House Inspector & Inspections
• Road, Roadway, Walk & Sidewalk Premises Liability (e.g., Steep Slope)
• Walkway, Path, Ramp & Pathway Premise Liability (e.g., Steep Grade)
• Coefficient of Friction / Slip & Fall (Snowy & Icy Conditions)
• Vertical Discontinuity / Discontinuities / Trip & Falls
• Small Ports / Port, Marinas / Marina, Marine Dredging
• Levees, Jetties, Dolphins, Piers, Sea & Flood Walls
• Wharves, Breakwaters, Bulkheads, Weirs, & Revetments
• Groins, Dikes and Waterfront Structures
• Drainage Basin Analysis, Rainfall, Floods & Flood Plain / Plains
• Flooding Controls & Control Devices
• Storm Water Runoff (10, 25, 50 & 100 Year Storms)
• Pressure & Pressures: Wind, Wave / Waves, Ice, Snow
• Rain Fall Run Off & Storm Water Pollution Treatment
• Excavation, Grading, Fills & Filling Operations (Swales, Berms, Silt Fence)
• Erosion Control, Sediment Barriers, Sedimentation / Catch Basins (Hay Bales)
• Pumps and Pump System Line & Main
• Slope, Dam, Levee, Jetty, Dolphin, Pier, Wharf & Breakwater Collapse
• Bulkhead, Weir, Revetment, Groin, Dike, Footing & Foundation Failures
• Failure of Fire Containment Wall, Elevator or Water Front Structure
• Tenement House Façade Collapses
• Code History of Existing Multiple / Multi-Family Dwelling / Building
• Application of Municipal Building, Fire & Property Maintenance Codes
• City, Town & Village Zoning, Planning, Steep Slopes & Grades, Wetland & Wetlands Ordinances
• Testimony at Board Meetings as a Design Forensics Engineer

Expanded Resources LLC is a construction management consulting firm serving the legal and construction industries.

Expert Witness Services

At Expanded Resources, we bridge the gap between construction complexity and clarity. With decades of boots-on-the-ground experience—and a teaching background —we know how to translate multifaceted issues into easily understandable narratives. You’re not just getting an expert. You’re gaining a guide who understands and explains complex construction matters with clarity and conviction.

Construction Management Consulting

We help organizations manage their construction portfolios, programs, and projects more efficiently.

We start by listening. Through targeted interviews, surveys, and meetings with stakeholders at every level—from senior leadership to field staff—we uncover how your teams really operate.

We dig into your systems, documents, and workflows to pinpoint gaps, bottlenecks, and inconsistencies. Whether it’s outdated software, mismatched forms, or policies no one follows, we find what’s not working—and why.

Next, we deliver a clear roadmap tailored to your organization. Think of it as an operating manual, grounded in contract compliance and practical experience. 

Implementation isn’t left to chance. We build your team's capability through guided training, toolkits, and change support. Whether onboarding new project managers or retooling seasoned teams, we help embed the right habits across your organization.

Kiwesa King, PE, CCM, DBIA, PMP, is a Licensed Professional Engineer and a Certified Construction Manager and Trainer.

Ms. King has managed restoration, renovation, and ground-up construction projects as a designer, subcontractor, general contractor, and construction manager. She teaches graduate and continuing education courses in Construction Management at Fordham University and New York University.

Degrees and Certifications:

• New York State Licensed Professional Engineer
• Bachelor of Science and Master of Science in Mechanical Engineering
• Certificate of Competence- Master Fire Suppression Contractor - New York City Department of Buildings (NYCDOB)
• Site Safety Manager: NYCDOB
• Certified Construction Manager: Construction Management Association of America
• Designated Design-Build Professional:  Design-Build Institute of America
• Project Management Professional: PMI

View Kiwesa King's Expert Witness Profile.

Ferrantello Group, PC is a multi-faceted, full service Long Island Land Surveying Company with engineering consulting services available as needed for all types of projects. Ferrantello Group, P.C. has provided quality service and technical excellence at price points designed to meet budgets in any economy. 

Awarded the Point of Beginning Top 100 Surveying Firms in United States, Ferrantello Group, PC has built solid relationships and an extensive community network throughout the years with many municipality and county governments throughout New York. Their service extends to land owners, lenders, title companies, real estate investment firms, commercial brokers, architects, engineers, contractors and developers. These relationships help provide our clients with the additional project resources that may be required for project submittal. 

Consulting Services:

Frank S. Ferrantello, PLS, is a New York State Licensed Land Surveyor with over 20 years of experience in Surveying, Civil Engineering, and Land Use Planning. Both his field and office Work experience have dealt with a wide range of projects and sites including residential single, multifamily, high rise municipal, utility, private and public, commercial, and industrial. Prior to and post college, 

Mr. Ferrantello worked for the firm of John P. Ferrantello PC from 1998 to 2010 and MJM engineering from 2008 to 2016. His duties consisted of performing office and field surveying, drafting, research, computations, boundary analysis, solutions, investigations and determinations. 

Mr. Ferrantello also has extensive experience in Site Planning and Subdivision Consulting, examining title records, deeds and other recorded documents such as ingress and egress, pedestrian easements, right of ways, air and development rights, vista easements, bridle paths, beach, bathing and mooring rights, covenants and restrictions, real property, zoning, and other land use principles. www.experts.com

View Frank S. Ferrantello's Expert Witness Profile.

Roger W. Griffith, PE, has over 37 years of professional experience as a Mechanical Engineer in the design, maintenance, and operation of mechanical systems. He specializes in the areas of Plumbing, HVAC, and Fire Sprinkler Systems Design.

Background - As the principal of Griffith Engineering & Consulting for 23 years, his design experience with commercial and industrial projects include convention centers, schools, office buildings, condominiums, apartment buildings, hotels, churches, manufacturing facilities, medical buildings, restaurants, historic buildings, dormitories, fire halls, and maintenance facilities. Prior to that, Mr. Griffith worked at the Tennessee Valley Authority (TVA) as a mechanical engineer for 14 years. 

His roles at TVA included nuclear piping analyst, valve and heat exchanger specialist, maintenance engineer, and later maintenance supervisor at a fossil plant, and quality manager. His engineering roles included failure analysis of plant equipment. He also taught many courses on the subject of problem-solving and failure analysis for company employees.

Consulting Services:

View Roger W. Griffith's Expert Witness Profile.

Dr. Fari Barzegar is a Licensed Engineer with 37 years of experience in Civil and Structural Engineering & Construction Forensics, Construction Project Management, university teaching/research. He has been an Expert Consultant / Witness in over 100-cases.

Litigation-Support Consulting Expert Witness with testimony and trial experience. Has been retained by insurance companies, law firms, construction, energy, mining, technology & manufacturing industries, governmental & educational institutions, engineering and architectural firms, property owners and individuals. Consultant in both plaintiff and defendant cases.

• Insurance & Surety Claims, Peer Reviews
• Buildings, Structures & Materials: Residential, Commercial, Institutional, Historic Structures; Bridges, Towers, Stacks/Chimneys, Containment Vessels, Tanks, Grain Silos, Conduits & Pipelines, Retaining Walls, Foundations, Slabs & Pavements; Concrete, Steel, FRP Composites, Wood, CMU, Brick Masonry & Adobe
• Design / Construction / Integrity issues, Seismic Resistant Design; Errors & Omissions;Standards of Care; Repair & Retrofit Design Documents
• Construction Defects & Accidents; Defective Concrete; OSHA Standards, Excavations / Trenching / Scaffolds
• Slip/Trip/Fall, Code Compliance
• Damage & Failure Investigation; Due Diligence; Non-Destructive Testing 
• Explosion, Impact, Earthquake, Wind, Fire, Hurricane & Flood Damage Inspections / Analysis/Report
• Pile Driving & Demolition Damage to Adjacent Facilities: Vibrations, Cracking / Settlement
• Dynamic, Fracture, Thermal & Finite Element Stress Analysis; Product Design; Failure Simulation / Reconstruction
• Intellectual Property & Patent Infringement

Hastak Consulting Services is a Construction Engineering and Management firm established by Prof. Makarand (Mark) Hastak, PhD, PE, CCP, CRIS, Professor and the Dernlan Family Head of Construction Engineering and Management as well as Professor of Civil Engineering at Purdue University. Dr. Hastak offers consulting services to clients around the world in the following areas:

• Project Controls and Risk Management
• Process Improvement of Capital Projects
• Profitability Improvement and Construction Analytics
• Process Improvement for Factory Built Housing
• Capital Rehabilitation Planning
• Strategic planning and decision-making for resolving project complexities
• Planning for Disaster Mitigation, Resilience, and Capacity Building

Dr. Hastak has been involved with the construction industry for the past 35 years providing his expertise through consulting, research, teaching, and service to the industry. He is a world renowned expert in the area of construction engineering and management including process improvement, disaster risk reduction, resilience and capacity building, infrastructure management, factory built housing, intelligent planning for the built environment, project control, project management decision-making, risk management, contracts and warranties, and strategic planning.

Dr. Hastak is a Professional Engineer (PE), a Construction Risk Insurance Specialist (CRIS), and a Certified Cost Professional (CCP). Dr. Hastak has given over 50 keynotes and invited lectures around the world. As a prominent educator, he also engages in developing training material and workshops as well as regularly teaching professional courses for the A/E/C industry. He has completed the 30-Hour OSHA Hazard Recognition Training for the Construction Industry. His services include consultation, on-site investigation, data collection, assessment,and reporting.

Dr. Hastak Lectures at the 2015 International Conference on Building Resilience

Prof. Hastak has worked on numerous projects sponsored by the Construction Industry Institute (CII), NSF, State DOTs, and City Agencies. He has authored over 200 publications on process improvement, project controls, capital rehabilitation planning, strategic planning, and decision-making. He has co-authored a widely used book on Infrastructure Planning, Engineering, and Economics (McGraw-Hill 2006 and 2015). 

Dr. Hastak is the current President of CIB (International Council for Research and Innovation in Building and Construction), He is also the academic Advisor to the Downstream and Chemicals Committee of the Construction Industry Institute (CII) and serves as the Chair of the Advisory Board of the Global Leadership Forum for Construction Engineering and Management programs (GLF-CEM). He served on the Education Board of the Association for Advancement of Cost Engineering (2004-2016). He was Editor for two AACE books, the Skills and Knowledge of Cost Engineering (6th Ed. 2015) and the CCP Certification Study Guide (2nd Ed. 2016). He was also the Editor-in-Chief of the ASCE Journal of Management in Engineering (2009-2016).

View Dr. Hastak's Expert Witness Profile.

Dennis E. Wilson has over forty years of experience in Land Planning, Civil Engineering, and Land Surveying. His company, Horizon Consulting Service, specializes in Entitlements, In-Fill Projects, Civil Engineering, and Land Planning and Design for commercial, industrial and residential properties. Mr. Wilson works on both private and governmental projects. As an Expert Witness, Mr. Wilson has participated in property line disputes, condemnation resolutions and land use issues. 

Professional Memberships:

• American Planning Association
• Past Chair of Land Use Committee, National Association of Home Builders
• Past Chair Land Use & Government Affairs, California Building Industry Association
• Past Chair of BIACC PAC
• Past Chair/Current Member on Land Use & Transportation Committee, Modesto Chamber of Commerce

Indian River Construction Services, Inc., offers many services to Home Owners, Home Owner Associations, Property Managers, and Building Owners. The most licensed construction firm in the state of Florida, they consult on project and building plans to help determine suitability, feasibility and cost controls for:

New Construction - Construction Repairs - Construction Additions - Construction Remodeling - Real Estate Improvements

Indian River Construction also has extensive experience in performing Insurance Adjusting Services as Florida Licensed Public Insurance Adjusters. This means they work for you and not for the insurance company, allowing them to get the best possible insurance settlement from insurance claims, whether that be a fire, flood, or hurricane. 

Andrew Allocco, PE, Principal at Indian River Construction Services is a leading Construction Consultant, Florida Licensed Public Insurance Adjuster, and Real Estate Broker. With over 45 years of experience in his fields of expertise, Mr. Allocco's services are sought by individuals, corporations, developers, and law firms to oversee and advise on construction projects. He is the current owner of construction, real estate, and engineering consulting firms.

Background Experience - Mr. Allocco is the President of Indian River Construction Services, Inc. Prior to his current role, he served as the President of Better Homes Construction Services, Inc. of Miami, Florida, which performed in excess of 40,000 Building Inspections. A Forensic Consulting Engineer, he inspects Commercial, Residential, and Industrial Facilities before, during, and after construction. He assists property owners with complex insurance claims, some of which involve significant and lengthy litigation

Mr. Allocco is not only licensed in the State of Florida as a Professional Engineer and Licensed Public Insurance Adjuster, he holds more licenses both presently active and past than any other individual in the State, including:

View Andrew Allocco's Expert Witness Profile.

Dr. Eric N. Brown, CIH, CSP, is a Certified Industrial Hygienist (CIH) and a Certified Safety Professional (CSP), with both certifications in good standing with the issuing boards. Dr. Brown holds a Doctorate in Public Health with an Industrial Hygiene specialization from the University of California at Los Angeles, and a Master’s degree in Public Health with an Occupational Health specialization from the Medical College of Ohio. He has over 25 years of experience in:

• Health and Safety
• Industrial Hygiene
• Indoor Air Quality Exposure Assessments

Litigation Support - Dr. Brown has been a designated expert in hundreds of cases, been deposed over one hundred times, and has testified in both trials and arbitrations. His services are available to attorneys representing both plaintiff and defendant. 

Areas of Expertise:

Isaak Technologies provides expert witness, consulting & training services in the areas of design, construction, procurement, implementation, commissioning and operations of information technology, telecommunications, network systems and critical data center facilities. Isaak Technologies provides clear solutions to complex challenges using best-practice forecasting, strategy & risk mitigation. 

Philip J. Isaak, PE, P.Eng., DCDC, RCDD, SMIEEE, has over 20 years of experience as a design & operations consultant & training provider, with a focus in the information technology, telecommunications & critical data center facility industries. 

In recognition of Mr. Isaak’s professional standing, the Officers & Board of Directors of the Institute of Electrical & Electronic Engineers (IEEE), the world’s largest professional association for advancement of technology, certified his election to the grade of Senior Member, a level only 9% of IEEE’s over 400,000 global members hold. 

Professional Services:

View Philip Isaak's Expert Witness Profile.

Principal, EJ Janik, CPA, CFF, CFE is a Certified Public Accountant with 40 years of professional experience. He has been engaged as an accounting consultant on issues involving, among other things, public and private company audits, due diligence, fact finding, asset tracing, lost profits analysis, damage analysis, fraud analysis, insurance claims and business valuations. Mr. Janik holds a Master of Science in Accounting from Louisiana State University and a Bachelor of Commerce from Rice University. He is a member of the American Institute of Certified Public Accountants and the Texas Society of Certified Public Accountants. Mr. Janik has provided expert testimony in over 88 matters including testimony in 58 trials or hearings in 8 states. His experience also includes over 23,000 hours of Engineering and Construction auditing and consulting work on construction claims matters involving:

Mr. Janik provides accounting, financial, economic, fraud, and business dispute consulting. He has provided over 150 financial audits and consulted in over 765 business disputes. Janik's clients include Bank of America, Coca-Cola Company, FDIC, General Motors Corporation, IBM, Travelers Insurance, and many more. Specific areas of expertise include:

View EJ Janik's Expert Witness Profile.

The four PhD and registered PEs at Miller Engineering are celebrating 40 years of Professorships at three universities along with providing services to Government, Insurance, and Industry—through research, publications, presentations, and expert testimony. We have a dedicated office with a full time staff of engineers, researchers, and technical writers. The span of our collective academic and experiential expertise covers well the Mechanical, Electrical, Chemical, Agricultural, Industrial, Human Factors, Ergonomic and Safety fields of engineering. The areas listed below are from actual projects completed in our 40 years of history. 

Joseph A. LaRovere, CEM, has over 35 years of experience as a contractor, owner/operator, technician, and consultant to the construction industry with specialties in HVAC, Mechanical, Electrical, Plumbing, Energy Management and Control Systems. He works with clients that are experiencing operational issues, difficulty finding the right team members, need help with business processes, or just need an objective executive coach to help them get to the next level.

Business Consulting Services:

• HVAC Systems, air conditioning, heat pumps, chiller plants, heating hot water, boilers, air handlers, water source heat pumps, cooling towers, dedicated outside air, ventilation, and exhaust systems
• Energy management and control system, sequence of operation, energy management and building efficiency
• Domestic hot water systems, electric and gas boilers and water heaters, mixing valves and hot water recirculation systems
• System failures, equipment failures, maintenance issues, preventative maintenance, water treatment, forensic investigation, and remediation
• Project Management, Program Management, Project Accounting, and Scheduling consulting and analysis
• Contractor Evaluation, Contract Review, Contractor Standard of Care, Engineering Evaluation, Site Inspections, and Retro commissioning

Certifications:

• C.E.M. - Certified Energy Manager
• Honeywell Tridium Niagara AX
• Honeywell Tridium Niagara 4
• Johnson Controls Facility Explorer

View Joseph LaRovere's Expert Witness Profile.