mexico’s LEADING CORPORATE fraud investigator

_experts in Cross-Border commercial investigations

As Featured By

A hybrid of investigating lawyers, former law ENFORCEMENT and fraud experts.

Mexico is a complex environment. Our experience and the blending of investigative disciplines gets results that would otherwise be unachievable.

  • 40+ Years Experience

  • Over $70 million recovered

  • Operations in over 25 countries

  • 40+ Arrests

tying it all together

Warden Consulting specializes in resolving complex financial crimes, including international money laundering, employee theft and fraud, cybercrime, and corporate and securities breaches.

Our Mexican team and network comprises of investigating lawyers, forensic accountants, government officials, and law enforcement.

  • Mark van Leewarden

    Founder & MD

    Mark was deployed as an undercover agent at age 20. He quickly infiltrated an organized crime operation and became a running mate with one of New Zealand's most notorious criminals. Mark would go on to earn honours degree in Law before founding Warden Consulting in 1995. Working across all aspects of the business, he has traced, frozen and distributed stolen assets back to our clients in Asia, Europe and The Americas. He is enrolled as a barrister and solicitor of the High Court Of New Zealand and holds a practicing certificate as a barrister.

  • Ben van Leewarden

    General Manager

    Ben is a licensed private investigator with over eight years experience in international fraud, surveillance and undercover operations. Ben brings true international experience to the company having operated the business in Amsterdam, New York, London and Mexico City. He holds a Bachelor of Commerce (BCom) degree from Victoria University in Wellington.

  • Pablo Rivera

    Legal Counsel

    Pablo holds a masters degree in Law (LL.M.) from La Universidad Nacional Autónoma de México (UNAM). A specialist in corporate law he has worked for Google, Baker Hughes, McDonalds and Jaguar. He assists on financial crime cases and provides specialised legal investigation advice from our Mexico City office.

  • Dennis Parsons

    Consultant

    Dennis is an expert forensic accountant, certified fraud examiner (USA), and licensed insolvency practitioner (NZ) who has undertaken hundreds of forensic accounting investigations of companies and individuals in both civil and criminal cases. He provides expert advice and consultation services to a number of government agencies in relation to civil and criminal investigations and related regulatory matters.

  • Andrea Tomba

    Consultant

    Andrea holds a BA (Hons) in Business Studies from the University of Westminster. He is fluent in Italian, French, Swedish, English, and Spanish. He has lived in Mexico for the last 25 years. Andrea's diverse skill set and global perspective are key assets for international cases.

  • Ainsley Bisset

    Operations

    Ainsley ("Ladybird"), started her career in the Police. She was a member of the Diplomatic Protection Squad, protecting high profile dignitaries and politicians including Princess Diana. Ainsley oversees all major fraud cases, conducting research and organizing backend logistics. She has HR responsibility including the protection and care of Warden undercover agents.

  • Denise Graham

    Office Manager

    Denise ("Diesel") is our Office Manager and has been with Warden since 2006. She manages each and every detail of our day-to-day business. Diesel came to us following a long and varied career in the legal sectors, commencing work at the Magistrates Court in Auckland and subsequently working for Barristers, Queen’s Counsel and law firms in New Zealand, Australia and the UK.

  • Warden’s Network

    International Associates

    Our international team of lawyers, forensic accountants, investigators, finance executives, covert agents and government agency officials work together to deliver the most desirable outcome.

Find out WHAT'S really going on

Learn More About Warden

Commercial investigations we conduct

Financial Statement Fraud

We investigate manipulations of financial statements, ensuring the accuracy of reported revenues, expenses, and overall financial health.

Asset Misappropriation

Our team uncovers schemes involving theft or misuse of company assets, including embezzlement, skimming, and fraudulent disbursements.

Bribery and Corruption

We identify and address instances of bribery and corruption, including kickbacks, illegal gratuities, and conflicts of interest.

Insider Trading

We conduct thorough investigations into illegal trading based on non-public information, protecting market integrity and investor interests.

Procurement Fraud

Our experts detect and resolve fraud related to procurement processes, such as bid-rigging, supplier kickbacks, and overbilling.

Expense Reimbursement Fraud

We scrutinize and identify fraudulent expense claims, ensuring compliance with company policies and financial controls.

Corporate Espionage

Our investigations cover unauthorized access to confidential business information, including trade secrets and proprietary data.

Cybercrime and Data Breaches

We address cyber threats, including hacking, data breaches, and other forms of cybercrime that jeopardize corporate security.


Tax Evasion

Our team investigates tax-related fraud, ensuring compliance with local and international tax regulations and uncovering fraudulent tax schemes.

Third-Party Fraud

We assess and mitigate risks associated with third-party vendors, contractors, and business partners, identifying potential fraud and breaches of trust.

Regulatory Compliance Breaches

We ensure adherence to industry regulations, investigating breaches and implementing measures to prevent future occurrences.

Who we’ve worked with.

Certified fraud Examiner CFE

Certified Fraud Examiners ACFE

Warden Consulting has been a certified member of CFE and ACFE since 2001 and American Society of Industrial Security (ASIS).

Contact us

Contact us

CALL

New Zealand: +64 9 414 4252
Mexico: +52 5529 118 816
United States: +1 646 403 3794
Australia: +61 488 277 788
EU: +32 460 23 23 95
Bahrain: +973 3801 0630