United States

HKA is a leading expert witness and litigation support consultancy, with practice areas in commercial damages, forensic accounting, digital forensics, government contracts, and construction.

With a substantial US footprint spanning the nation’s major commercial, technology, energy, construction, and government contracting markets, HKA combines deep local expertise with the strength of a global network of experts to help clients manage risk, resolve disputes and protect value on complex projects and commercial matters.

Why HKA

What differentiates HKA is the breadth of its expert-led platform. Our multidisciplinary teams include commercial damages experts, forensic accountants, economists, valuation professionals, intellectual property specialists, engineers, construction experts, government contracting specialists, investigators, and testifying experts, delivering integrated solutions across complex commercial disputes from multiple perspectives.

Law firms, multinational corporations, government agencies, federal contractors, owners, developers, insurers, financial institutions, and other organisations rely on HKA for independent analysis, expert reports, and testimony across a broad range of complex disputes, investigations and advisory matters. Our experts provide services across commercial damages and valuation, forensic accounting and fraud investigations, class actions and antitrust matters, government contracts, construction claims, delay and disruption, quantum, and forensic engineering, architectural, and technical matters. They are regularly retained in some of the most significant and high-value disputes before federal and state courts, arbitration panels, and regulatory tribunals.

HKA serves clients across many of the United States’ most important industries including technology, aerospace and defence, construction and infrastructure, government contracts, data centers, energy, oil and gas, power and utilities, healthcare and life sciences, financial services, manufacturing, transportation, sports and entertainment, real estate and regulated utilities. We support clients and their counsel throughout project, contract, and dispute lifecycles, helping them manage risk, address compliance challenges, investigate issues, resolve disputes, and navigate complex regulatory and commercial environments.

Our United States services

Forensic accounting

HKA’s forensic accounting experts help in-house counsel and instructing lawyers uncover the truth, quantify financial impacts, and build credible, defensible cases in high-stakes disputes. We support legal teams in matters involving contentious disputes, fraud, financial misconduct, and regulatory breaches – including white-collar crime investigations and compliance reviews.

We help clients understand, protect, and recover financial value in disputes, regulatory investigations, insolvency matters, and complex transactions. HKA acts for both claimants and defendants, delivering independent financial analysis and expert testimony that withstands scrutiny.

Find out more about our Forensic Accounting services.

Economic damages

In today’s fast-moving business landscape, quantifying economic damages requires more than just numbers — it demands clarity, credibility, and strategic insight. Whether you’re navigating a complex dispute or preparing for litigation, our experts deliver robust, defensible loss quantification and economic damages analysis.

HKA experts have conducted thousands of forensic accounting, economic, financial, valuation, statistical, and operational studies to assess liability, causation, and damages across litigation, arbitration, regulatory investigations, and mediation. We apply rigorous methodologies to quantify financial loss and assess economic damages across a wide range of scenarios, including financial and operational analysis, contractual market risk assessments, valuation and intellectual property, and damage quantification.

Find out more about our Economic Damages services.

Investigations

HKA provides an expert, responsive and agile investigations service. Our global capabilities allow us to quickly deploy investigating teams with the right skills, resources and experience anywhere in the world.

Drawing on forensic accounting expertise and a range of complementary disciplines, we conduct incisive investigations and in-depth research. Using specialist investigation technologies, including in-house developed AI capabilities, our renowned teams perform analysis of complex and large datasets, digital forensics, and e-discovery efficiently.

Find out more about our Investigation and Corporate, Regulatory & Compliance services.

Intellectual property

HKA’s intellectual property practice is trusted by leading law firms, multinational corporations, and in-house counsel to deliver independent expert testimony, intellectual property valuation, and economic damages analyses in high-stakes patent, trade secret, copyright, trademark, and licensing disputes. Our experts combine deep financial expertise, industry knowledge and litigation-tested methodologies to develop clear, robust, defensible opinions that withstand scrutiny through discovery, deposition, trial, and international arbitration.

We help clients quantify complex economic issues involving patent infringement, reasonable royalties, lost profits, FRAND and SEP licensing, trade secret misappropriation, copyright and trademark damages, technology valuation, and breach of licensing and/or technology agreements.

Find out more about our Intellectual Property services.

Digital forensics, data analytics, and cybersecurity

HKA is engaged across a diverse range of investigative matters involving data exfiltration, unauthorized data access, data destruction, metadata manipulation, intellectual property (IP) theft, misappropriation of trade secrets investigations, complex preservation and data collections, and digital forensics expert testimony services.

We leverage advanced technology and methodologies to provide you with the insights needed to address potential threats and resolve disputes effectively.

Find out more about our services in Data & Advanced Analytics, Digital Forensics & Investigations, Cybersecurity and eDiscovery.

Government contracting

HKA government contracting experts understand the complex environments in which you operate, whether facing a dispute or in effectively delivering on your contracts. We find practical, cost-effective solutions to challenges faced by government contractors and their counsel. We respond decisively to your challenges, safeguard your eligibility reputation, and your bottom line.

Government contractors operate in one of the most complex and closely scrutinized regulatory environments. HKA brings deep and broad expertise to help clients navigate this landscape with confidence – ensuring compliance, mitigating risk, and resolving disputes efficiently. Clients and their counsel rely on HKA for litigation support, expert testimony, compliance and regulatory advisory, risk assessments, investigations, and strategic consulting across the government contracts lifecycle.

Read more about our Government Contracting services.

Construction advisory, claims management, and dispute resolution

HKA has one of the largest and most renowned construction practices in the United States and globally. With over half a century of construction dispute resolution experience and a multidisciplinary team of experts in delay, damages, standard of care, and forensic accounting, we support clients across public and private projects, from individual building, transportation infrastructure, and utility projects to large-scale capital programs. Our expertise spans all construction market sectors and is reinforced by our experience consulting on some of the world’s largest and most complex mega-projects.

We assist owners, contractors, developers, subcontractors, and legal teams with change management; dispute avoidance and mitigation; claims evaluation, preparation, and defense; commercial strategy; and high-stakes litigation. Clients turn to us as a trusted advisor to help them assess, quantify, substantiate, and navigate claims involving scope changes, productivity impacts, disruption, acceleration, differing site conditions, cost overruns, schedule impacts, contractual entitlement, and other complex project matters. Uniquely positioned at the intersection of technical, commercial, and contractual expertise, HKA provides expert consulting support through the project lifecycle, helping clients navigate the full spectrum of construction challenges.

Find out more about our services in Construction Advisory, Construction Claims & Dispute Management, Construction Delay & Disruption, Construction Quantum, and Forensic Engineering, Architectural & Scientific.

HKA has continued to strengthen its US capabilities through strategic investment and the addition of leading practitioners, further strengthening our expertise across construction claims, government contracting, forensic accounting, commercial damages, intellectual property, fraud investigations, digital forensics, cybersecurity, and litigation support.

Recognized globally for excellence in expert witness and dispute resolution services, HKA can quickly mobilize a multidisciplinary team of market-leading specialists to help clients address the most complex and contentious project disputes, commercial challenges, and compliance issues.