Below is a historically informed, but inevitably interpretive, list of major companies still operating today whose records include some of the most severe ethical controversies. The ranking considers factors such as human-rights abuses, environmental damage, scale, and duration. I’ve also indicated where companies have formally acknowledged or apologised for past wrongdoing.

The Long Shadow of Corporate Power

 

From wartime collaboration to environmental disasters, the historical controversies that still follow some of the world’s largest companies.

 

Large corporations often span generations, and with that longevity comes history — sometimes admirable, sometimes deeply troubling. Some of the world’s most recognisable companies have been connected to events that remain controversial decades later. The following overview highlights ten corporations still in existence whose histories include some of the most debated episodes in modern industrial history.

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1. Bayer (Germany)

 

Bayer was one of the principal companies within the IG Farben chemical cartel, which became deeply integrated into the Nazi war economy. IG Farben operated factories using forced labour, including the industrial complex at Auschwitz-Monowitz, where prisoners were forced to work under brutal conditions.

After the Second World War the Allies dismantled IG Farben, and Bayer later re-emerged as an independent pharmaceutical and chemical company.

Acknowledgement:

Yes. Bayer has acknowledged the injustices connected with its role in IG Farben and apologised for its involvement in the Nazi era.

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2. Volkswagen (Germany)

 

Volkswagen was created in 1937 under the Nazi government as part of a state project to build a “people’s car.” During the war the company relied heavily on forced labourers from occupied countries and concentration camps to sustain production.

Decades later Volkswagen faced a major modern scandal when it was discovered in 2015 that the company had installed software designed to cheat emissions tests in millions of diesel vehicles.

Acknowledgement:

Yes. Volkswagen has funded historical research, memorials, and compensation programs for wartime forced labour victims.

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3. Royal Dutch Shell (UK / Netherlands)

 

Shell’s modern history has been shaped by repeated controversy, particularly regarding environmental damage linked to oil extraction in the Niger Delta, where local communities have protested pollution and health risks associated with oil spills. 

In 2004 the company admitted it had overstated its proven oil and gas reserves by roughly 23 percent, triggering regulatory penalties and the resignation of senior executives.

Shell’s early history has also drawn scrutiny because of the political activities of former Royal Dutch Petroleum chief Sir Henri Deterding, who expressed admiration for Adolf Hitler during the 1930s. Shell-commissioned historians writing A History of Royal Dutch Shell concluded that Deterding never met Hitler, but contemporary reporting — including a Reuters-syndicated article published in The New York Times and other newspapers — reported that the two men spent several days together in Germany.

Acknowledgement:

Partial acknowledgement regarding the reserves scandal; no clear corporate apology relating specifically to the Deterding–Nazi association.

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4. Nestlé (Switzerland)

 

Nestlé faced global criticism beginning in the 1970s over its marketing of infant formula in developing countries, which critics argued discouraged breastfeeding in places where access to clean water was limited. The controversy sparked one of the longest consumer boycotts in modern history.

The company has also faced scrutiny over labour practices within global cocoa supply chains and environmental concerns involving water extraction.

Acknowledgement:

Partial. Nestlé adopted international marketing guidelines but continues to dispute aspects of the criticism.

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5. Chiquita Brands (United States)

 

Chiquita traces its origins to the United Fruit Company, whose economic power in Central America during the early twentieth century helped shape the term “banana republic.”

In 2007 Chiquita pleaded guilty in a U.S. federal court to making payments to a Colombian paramilitary group that had been designated a terrorist organisation.

Acknowledgement:

Limited. The company stated the payments were made under coercion but accepted legal responsibility.

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6. Siemens (Germany)

 

During the Second World War Siemens operated factories that used forced labour from concentration camp prisoners, producing electrical and industrial equipment for the German war effort.

In the modern era the company was also involved in a large international bribery scandal uncovered in the mid-2000s.

Acknowledgement:

Yes. Siemens has acknowledged its wartime role and contributed to compensation programs for forced labour victims.

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7. IBM (United States)

 

IBM’s role in Nazi Germany has long been debated because of its punch-card data processing systems, which historians argue helped governments manage census and administrative data during the period.

Although the technology itself was not designed for persecution, critics argue it enabled bureaucratic systems that could be used by authoritarian regimes.

Acknowledgement:

No widely recognised formal corporate apology.

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8. BP (United Kingdom)

 

BP became synonymous with one of the largest environmental disasters in history when the Deepwater Horizon drilling rig exploded in 2010, releasing millions of barrels of oil into the Gulf of Mexico.

The disaster devastated marine ecosystems and coastal economies across the region.

Acknowledgement:

Yes. BP issued public apologies and ultimately paid tens of billions of dollars in settlements and cleanup costs.

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9. Union Carbide / Dow Chemical (United States)

 

Union Carbide operated the pesticide plant in Bhopal, India, where a catastrophic gas leak in 1984 killed thousands and injured hundreds of thousands more.

The disaster is widely considered the worst industrial accident in history and continues to affect the region decades later.

Acknowledgement:

Partial. The company reached legal settlements, though critics argue it never fully accepted responsibility.

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10. ExxonMobil (United States)

 

ExxonMobil, a successor to parts of John D. Rockefeller’s Standard Oil empire, has faced criticism regarding its role in funding climate-change scepticism campaigns while internal company research had identified global warming risks decades earlier.

The company disputes allegations that it deliberately misled the public.

Acknowledgement:

No full corporate apology.

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The Pattern Behind Corporate Controversy

 

Across these cases, several recurring themes appear:

Wartime industrial collaboration

Several major companies became deeply integrated into the wartime economies of authoritarian regimes.

Environmental disasters

Modern industrial controversies increasingly centre on environmental damage with global consequences.

Global supply-chain ethics

Multinational corporations face growing scrutiny over labour conditions and environmental impacts across complex international supply networks.

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Assessing historical responsibility across decades is complex. Some companies have acknowledged past wrongdoing and attempted reforms, while others continue to dispute the interpretation of historical events. What remains clear is that the legacy of industrial power often extends far beyond the boardroom — shaping communities, environments, and historical memory for generations.

 

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