Global Experts. Independent Analysis. Tribunal-Ready Testimony.
Masin provides independent, credible, and sector-specialized expert witness services in litigation and arbitration proceedings. Our experts are trusted by leading international firms and tribunals for their technical accuracy, commercial understanding, and ability to articulate complex issues clearly and persuasively.

Why Expert Witness Services
Disputes in infrastructure, energy, and commercial sectors often hinge on nuanced technical, scheduling, or financial evidence. At MASIN, we help legal teams and tribunals untangle the most complex issues with clarity and credibility. Our experts are appointed by leading law firms, global corporations, and arbitral tribunals for their ability to deliver structured, neutral, and tribunal-ready insights. We serve as both lead expert witnesses and joint experts in high-value international arbitrations and litigation proceedings across jurisdictions.

What We Do
All MASIN expert witness services follow global standards such as IBA, SCL, and AACE protocols. Our key capabilities include:
Our delay experts deliver forensic analysis to assess critical path delays and responsibility allocation. With proven methodologies and tribunal-tested reports, we support parties in delay claims and defenses in arbitration and litigation.
We evaluate the financial aspects of disputes, including cost overruns, loss of productivity, and damages. Our quantum experts prepare independent assessments grounded in contract terms, industry benchmarks, and best practices.
Masin’s engineering experts combine deep technical expertise with real-world site experience to resolve complex construction disputes. With backgrounds across infrastructure, energy, and real estate, they assess issues like design flaws, construction methods, defects, and non-compliance. Their insights are grounded, reliable, and widely respected by tribunals and courts.
We offer specialist expert testimony in complex commercial disputes across various sectors:
- BIT (Bilateral Investment Treaties): Assessing valuation and damages in investor-state disputes involving construction, infrastructure, and utilities.
- Shareholder: Analyzing financial records, governance issues, and valuation for equitable resolution in ownership and management conflicts.
- Oil & Gas pricing agreement- Interpreting pricing formulas, market trends, and contractual obligations in commodity-linked disputes.
- Power purchase agreements- Evaluating tariff structures, performance metrics, and compliance under long-term energy contracts in regulatory and commercial disputes.
- Partnership and Shareholder Disputes- Conflicts between business partners or shareholders can be disruptive and complex. Masin advises on disputes involving mismanagement, breach of fiduciary duties, and shareholder rights, ensuring that corporate governance and business continuity remain intact.
- Employment and Labor Disputes- Our consultants provide support in addressing employment-related conflicts, including breach of employment terms, restrictive covenant enforcement, and executive compensation disputes. We help clients manage sensitive issues while maintaining compliance with employment laws and internal policies.
- Intellectual Property Disputes- We assist clients in protecting and enforcing their intellectual assets, including disputes over trademark infringement, patent validity, misappropriation of trade secrets, and licensing disagreements. Our approach balances legal strategy with commercial impact.
- Financial and Investment Disputes– Masin supports clients involved in complex financial disputes, including disagreements over joint ventures, financing arrangements, and shareholder value. Our team provides clarity and structure in highly sensitive and high-stakes matters.
Sectors We Serve
Masin supports developers, contractors, and subcontractors through the complexities of high-rise, commercial, and mixed-use developments. With experience across the Middle East and Asia, we assist in managing delays, resolving claims, and navigating technical challenges—ensuring projects stay commercially and contractually sound.
Masin brings deep expertise to road, highway, and maritime projects—supporting contractors and stakeholders in managing delays, cost claims, and engineering risks. With experience across 100+ infrastructure disputes, we help keep complex logistics-driven developments moving forward.
Masin supports hospital, hotel, stadium, and public venue projects with tailored claim strategies and forensic analysis. Our experience across healthcare and hospitality developments ensures timely, compliant, and commercially sound outcomes for complex, high-visibility builds.
Masin helps clients navigate complex disputes in upstream, midstream, and downstream projects. With proven expertise in delay, quantum, and technical matters, we support high-stakes oil and gas claims with precision and industry insight.
Masin supports solar, wind, hydro, and nuclear projects with deep expertise in delay, cost, and compliance issues. From EPCs to energy developers, we help resolve disputes and strengthen outcomes in capital-intensive, mission-critical energy builds.
Masin supports complex airport and railway developments with expert guidance on delays, cost claims, and contract disputes. With global experience in transport infrastructure, we help clients manage risks and protect commercial outcomes in highly regulated environments.
Masin supports shareholder and treaty arbitrations with independent quantum, delay, and financial expertise. From joint venture conflicts to investment treaty claims, we help unravel complex causation and quantify damages with accuracy and authority.
How We Do It
Structured. Strategic. Tribunal-Trusted.
All expert testimony services by MASIN adhere to international arbitration standards. Our approach includes:

Evaluate
We identify causation and core dispute issues through forensic review of contracts, schedules, and records.

Report
We draft expert reports, joint statements, and rebuttals that withstand scrutiny under cross-examination.

Testify
We appear as lead or joint experts in global tribunals and courts—providing neutral, persuasive, and well-documented opinions.
Why Masin
We help you tell your side of the story – with facts, not assumptions. We add value by:
- 600+ experts with global testimony experience
- Trusted by ICC, SIAC, LCIA, UNCITRAL, and DIFC
- Technical, financial, and legal depth across sectors
- Reputation for neutral, credible, and clear insights
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Experience resolving high-stakes engineering and construction disputes.
$ 0 B+
Dispute value managed across global projects and complex claims.
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Cases handled across arbitration, litigation, adjudication, and mediation.
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Clients including contractors, developers, law firms, and Fortune 500s.
Stay Ahead with Masin’s Insights
Frequently Asked Questions
Get answers to frequently asked questions about everything we do.
What makes MASIN's expert testimony tribunal-ready?
Our reports follow global best practices (IBA, SCL, AACE) and are structured for clarity, evidence, and defensibility under cross-examination.
What sectors do your experts cover?
We serve infrastructure, real estate, energy, tech, financial services, and more—with specialists across engineering, finance, and law.
Can you act as joint experts?
Yes. Our team is often jointly appointed and trusted by both parties for neutral, balanced analysis.
What is your role in investor-state disputes?
We provide valuation and damage assessments in BIT arbitration under frameworks like ICSID and UNCITRAL.
How do you handle both technical and non-technical disputes?
Our multidisciplinary team includes engineers, planners, economists, and sector specialists to deliver a comprehensive view.
Need expert support that holds up in courtrooms and tribunals?
From delay claims to shareholder disputes, our independent experts provide the clarity and structure legal teams need to win complex cases. Discover why MASIN is trusted worldwide.
Talk to our Experts
Have a project challenge or need clarity on a dispute? Our experts are here to help. Reach out for personalized insights and reliable guidance tailored to your sector and situation.