The Tuna 30 Dashboard accompanies the report “Tuna Turner: Investors must turn up transparency in the tuna industry”. It assesses the transparency of the 30 largest tuna harvesters globally, which together account for an estimated 46% of global tuna catch

(Thursday 26th June) Today, more than 43 investors with over $4 trillion in assets under management are calling on chemical companies to phase out highly hazardous chemicals and transition to safer alternatives to protect biodiversity and human health.

Investment Analyst

Head of Data

Communications Officer

Senior Investment Analyst (Plastics)

Chair

The intersection of food and health presents critical challenges for companies, investors, and policymakers alike. The food sector plays a decisive role in shaping public health outcomes, from addressing rising obesity rates and malnutrition to tackling the growing threat of antimicrobial resistance.

Planet Tracker has traced 2,153 fishing vessels to the world’s largest tuna harvesting companies – revealing, for the first time, their catch volumes by stock in the absence of adequate reporting from companies.

The thirty largest tuna harvesters account for an estimated 46% of global tuna catch. Only four out of 30 firms report any tuna catch volumes. By shedding light on corporate activity in the opaque tuna industry, this analysis shows why greater transparency is urgently needed – not just for ocean health, but to reduce investor risk and to support the financial performance of tuna harvesting companies.