SPECIALISED KNOWLEDGE. PROVEN RESULTS.

The Bunker Detectives

We specialise in targeting whether a vessel hides bunkers, supported by our unique database of more than 4,500 surveyed vessels.

  • We uncover sophisticated methods used to conceal bunkers, including manipulation of sounding pipes, gauges and measuring equipment.
  • We identify hidden and undeclared tanks, false capacity data and “monkey capacity tables”.
  • We provide dependable solutions for bunker discrepancies, suspicions and unexplained problems in ports worldwide.
  • Every year, our surveys uncover thousands of tonnes of hidden fuel and diesel oil.
Request a Special Bunker Survey →
Since 1987 Independent marine surveying Independent expertise — built year after year.
4,500+ Surveyed vessels in our database Surveyed vessels — and still counting.
Global Reach Specialist survey attendance worldwide Wherever the vessel. Whenever it matters.

SPECIALIST MARINE EXPERTISE

Focused where experience matters most

From high-stakes 221B bunker discrepancy investigations to systematic vessel condition and pre-purchase assessments, IMI delivers decisive technical judgment.

✓ 221B Bunker Investigations ✓ On/Off-Hire / Interm. Surveys ✓ Bunker Supplies ✓ Bunker Risk Assessment
Explore All Surveying Services & Capabilities →

CORE SPECIALITY

The Bunker Detectives

Hidden Quantities

Our surveyors are experts in discovering concealed bunker quantities, hidden and undeclared tanks, “monkey capacity tables” and sophisticated methods of bunker concealment and manipulation.

Manipulation Methods

These methods may include manipulation of sounding pipes and measuring equipment, magnetic devices, wire-weight indicators, inaccurate glass-meter readings and other distorted measuring arrangements.

IMI bunker surveyor conducting bunker measurements aboard a bulk carrier

Worldwide Solutions

Wherever a vessel may be located, we work to provide a dependable solution whenever there is a bunker discrepancy, suspicion or unexplained problem.

Proven Results

Every year, our surveys identify thousands of tonnes of hidden fuel and diesel oil on board vessels worldwide, fully documented for commercial and legal defense.

TRUSTED MARINE SURVEYING

Why Clients Choose IMI Ltd.

Specialist knowledge, modern methods and complete independence in every survey.

Professional Expertise

Nearly four decades of specialised marine surveying experience carried out by former Greek Masters and Chief Engineers.

Proprietary Tools

Unique, patented and custom-made inspection tools, developed exclusively by IMI Ltd., combined with specialised procedures designed to uncover hidden quantities.

Independence

Accurate, impartial and fully documented survey findings defending our clients' legitimate interests.

Integrity

Decades of loyalty, absolute confidentiality and professional responsibility towards every client appointment.

A Family Company with Worldwide Reach

International Marine Inspections was established in 1987 by Capt. Nick Tsoupis, a Greek Master Mariner. Based on seagoing experience, loyalty, integrity and "clean hands", IMI Ltd. remains an independent family firm with decisive results.

Bunker surveying and marine investigations demand absolute independence. The technical knowledge, dedication and consistent performance of our team have established IMI as a trusted specialist within the international shipping industry.

Throughout nearly four decades of continuous service, leading charterers and operators worldwide rely on our expertise for clear findings, professional responsibility and complete commitment to their interests.

That is why International Marine Inspections is proud of the reputation behind its name.

Require attendance for your vessel?

Contact IMI Ltd. to discuss the vessel, port and expected survey schedule.

Contact IMI Ltd.
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