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Jac Marais

About me

Jac is a litigation and dispute resolution specialist.

He represents and advises clients in multifaceted litigation (including arbitration and mediation) in the following fields:

  • Administrative (public law), constitutional law, and regulatory law.
  • Commercial Litigation (local and international) in respect of contractual rights, governance, shareholder disputes, director’s liability, contractual disputes as well as class action litigation.
  • Competition law, including applications for merger approval to the Competition Commission and Competition Tribunal, and all Competition Law related litigation, including follow-on damages claims.
  • Commissions of Enquiry (local and international).
  • Fraud investigations and follow on litigation.

He has represented and advised clients in a variety of forums, including:

  • the Constitutional Court
  • the Supreme Court of Appeal
  • the Competition Appeal Court
  • the Competition Tribunal
  • the Competition Commission
  • the Tax Appeal Court
  • the Labour Appeal Court
  • the Labour Court
  • the High Court
  • local and international arbitration tribunals
  • arbitration appeal tribunals
  • commissions of enquiry (including the Arms Deal Enquiry and the State Capture Enquiry);
  • the Public Protector
  • the Commercial Crimes Court
  • the Press Ombud
  • the FSCA, and various other regulatory bodies.

His clients include household local and international firms, as well as various governments, government agencies and departments.

Jac’s experience spans various sectors of the economy, including agriculture, retail, financial services, ICT, defence, energy, construction, transport, health, local and municipal government, and tax.

Jac chairs the commercial, litigation and property department of Adams & Adams and is a member of the firm’s management committee. He is also a director of Adams & Adams Forensic and Investigative Services (Pty) Ltd.

Read More
  • Litigation and Dispute Resolution

Academic Record

  • Presents annual lectures in Competition Law at the University of Pretoria | 2014 – Present
  • Postgraduate Diploma in European Competition Law – University of London, King’s College | 2012
  • Advanced Certificate in Competition Law – University of Witwatersrand | 2008
  • LLB – University of Stellenbosch | 2006
  • BA – University of Stellenbosch | 2004


  • Admitted Attorney | 2009


  • Administrative Justice Association of South Africa (ADJASA) – Member
  • Legal Practice Council (LPC) – Member
  • Institute of Forensic Commercial Practitioners (ICFP) – Member
  • International Bar Association (IBA) – Member
  • Pretoria Attorneys Association (PAA) – Member
  • South African Council of Shopping Centres (SACSC) – Member


  • Best Lawyers® – Litigation – South Africa | 2021 – 2024
  • Best Lawyers® – Constitutional Law: South Africa | 2024
  • Legal 500 – Recommended Lawyers: Construction | 2022 – 2023
  • Legal 500 – Recommended Lawyers: Dispute Resolution | 2023
  • Legal 500 – Recommended Individual | 2023
  • Chambers Global: Ranked Lawyer | 2023

Jac Marais News & Podcasts

Adams and Adams is pleased with another good outcome for Intercape

In a judgement delivered on Tuesday 10 January, Judge John Smith dismissed Transport Minister Fikile...


The Competition Commission (“Commission”) launched its market inquiry into online intermediation...

Power coupled with Duty, the Intercape story

Courts are not designed to govern. That is the government’s job, involving budget allocations and ...

The Competition Commission & OIPMI - Full Steam Ahead

On the 19th of May 2021, the South African Competition Commission (“Commission”) formally initia...

Adams & Adams welcomes first female chairperson and further members of the management committee

As we commemorated International Women’s Day on 8 March celebrating the social, economic and cultu...

Guidelines on the Enforcement of Buyer Power Regulations

Companies now have further clarity on the enforcement of competition law, particularly regarding the...

Merger Regulations Post-COVID-19

The competition authorities, being the Competition Tribunal (“the Tribunal”) and the Competition...

A Competitor’s Guide to COVID-19

Individuals, corporations and the economy have all fallen victim to the devastating impact of COVID-...

Covid-19 Block Exemption for the Retail Property Sector

The Government has already taken swift action against the Coronavirus pandemic through regulations g...

Competing with COVID-19

We invite you to contact our Competition Law Team if you have any questions in relation to the COVID...

The School Uniform Investigation

We take a look at the intended effects of the Competition Commission’s investigation into the pric...

Assigning High Demand Spectrum in the ICT Sector - A possible hybrid method

The telecommunications sector is the backbone of the of the digital economy. Access to spectrum is e...