Top 5 Worst Companies Of All Time

#2 because the final validated order places "IG Farben" here with 71 framework points. It follows #1 "British East India Company" after those deterministic tie-breaks. It is placed above #3 "Union Carbide" by the deterministic evidence, prompt-fit, source-count, and title tie-breaks.

The German chemical conglomerate was deeply entangled with Nazi war production, forced labor, and the supply of Zyklon B through a subsidiary-linked corporate network.

#3 because the final validated order places "Union Carbide" here with 71 framework points. It follows #2 "IG Farben" after those deterministic tie-breaks. It is placed above #4 "Enron" by the deterministic evidence, prompt-fit, source-count, and title tie-breaks.

Its Indian subsidiary's Bhopal pesticide plant disaster killed thousands and exposed hundreds of thousands, becoming a defining case of industrial negligence and accountability failure.

#4 because the final validated order places "Enron" here with 71 framework points. It follows #3 "Union Carbide" after those deterministic tie-breaks. It is placed above #5 "Purdue Pharma" by the deterministic evidence, prompt-fit, source-count, and title tie-breaks.

Enron's accounting fraud destroyed billions in shareholder value, wiped out employee retirement savings, and helped trigger major corporate-governance reforms.

#5 because the final validated order places "Purdue Pharma" at the publication cutoff with 71 framework points. It follows #4 "Enron" after those deterministic tie-breaks.

Purdue's aggressive OxyContin marketing became central to lawsuits and public scrutiny over the U.S. opioid crisis, which caused massive addiction and overdose harm.