When it comes to business fraud, the world tends to focus on the biggest names like Bernie Madoff and Enron. But there are plenty of lesser-known fraudsters who have pulled off audacious schemes, scamming investors, employees, and even entire industries out of billions. These fraudsters might not be household names, but their crimes were no less destructive.

Here’s a look at the top 10 biggest business fraudsters you’ve probably never heard of.

1. Allen Stanford (Stanford Financial Group)

While Bernie Madoff might have grabbed the most attention, Allen Stanford was responsible for the second-largest Ponzi scheme in U.S. history. Through his company, Stanford Financial Group, he defrauded investors out of over $7 billion by selling bogus certificates of deposit (CDs) through a bank he controlled in Antigua.

Stanford promised absurdly high returns and used money from new investors to pay off earlier ones. He lived a lavish lifestyle with private jets, luxury yachts, and even a knighthood from Antigua. His empire fell apart in 2009, and Stanford was sentenced to 110 years in prison.

Why He Got Away with It: Stanford maintained a veneer of respectability through political connections and philanthropic efforts, fooling regulators and investors for decades.

2. Eddie Antar (Crazy Eddie)

Known for his outrageous advertising, Eddie Antar built Crazy Eddie, an electronics retail chain that took the 1980s by storm. Behind the scenes, however, Antar was cooking the books, underreporting income and overstating inventory to make his company look far more profitable than it was.

Antar took Crazy Eddie public, selling shares at inflated prices based on falsified financials. When the fraud was exposed, the company collapsed, and Antar fled to Israel to avoid prosecution. He was eventually extradited and served time in prison.

Why He Got Away with It: Eddie Antar’s larger-than-life personality and the company’s aggressive marketing masked the massive fraud happening behind the scenes.

3. Barry Minkow (ZZZZ Best)

At just 16 years old, Barry Minkow founded ZZZZ Best, a carpet cleaning company that he claimed was a multi-million-dollar operation. In reality, the bulk of his business was fake. Minkow fabricated financial documents and contracts to make ZZZZ Best look like a booming enterprise, even taking the company public with a $200 million valuation.

The scheme unraveled when investigators uncovered the fraud, and Minkow was sentenced to 25 years in prison. Remarkably, after his release, Minkow became a pastor and fraud investigator—only to be caught in another scam and sent back to prison.

Why He Got Away with It: Minkow played on his youthful charm and a “rags to riches” narrative, which helped him attract investors who wanted to believe in his success.

4. Tom Petters (Petters Group Worldwide)

Tom Petters was a businessman who owned legitimate companies, including Polaroid and Sun Country Airlines. But behind the scenes, he was running a massive Ponzi scheme through Petters Group Worldwide, defrauding investors out of $3.65 billion. Petters convinced investors to fund nonexistent electronics deals, using money from new investors to pay off old ones.

Petters’ scam came crashing down in 2008, and he was sentenced to 50 years in prison.

Why He Got Away with It: Petters used his legitimate businesses as a cover, which allowed him to maintain credibility with investors and regulators for years.

5. Sam Israel (Bayou Hedge Fund Group)

Sam Israel founded the Bayou Hedge Fund Group in 1996, promising steady, high returns to his investors. But from the start, Israel was falsifying financial records and running what amounted to a giant Ponzi scheme. By the time the fraud was uncovered in 2005, Israel had stolen hundreds of millions from investors.

In a bizarre twist, after being caught, Israel faked his own suicide by leaving his car abandoned on a bridge. He was later found and sentenced to 22 years in prison.

Why He Got Away with It: Israel used fake auditing firms and falsified documents to keep investors in the dark while maintaining the illusion of profitability.

6. Martin Frankel (Frankel Fund Fraud)

Starting in the 1990s, Martin Frankel ran a complex scam through a series of bogus investment companies, ultimately defrauding insurance firms out of $200 million. Frankel acquired small insurance companies and siphoned off their funds into his personal accounts. His scam was so elaborate that he evaded detection for years, hiding his activities behind layers of shell companies.

When the scheme collapsed, Frankel fled the U.S. and was eventually captured in Germany. He was extradited and sentenced to 16 years in prison.

Why He Got Away with It: Frankel’s intricate web of shell companies and his secretive, highly secured lifestyle allowed him to conceal his fraud for years..

Why He Got Away with It: Stanford’s smooth-talking persona and the allure of offshore banking allowed him to fool investors and regulators for years.

7. Satyam Computers Scandal (Ramalinga Raju)

Ramalinga Raju, the founder of Satyam Computer Services, was once hailed as a visionary in India’s IT sector. However, in 2009, it was revealed that Raju had been falsifying financial statements for years, inflating the company’s profits by over $1.5 billion.

Raju’s confession sent shockwaves through India’s corporate world, as Satyam was one of the country’s largest and most respected companies. Raju was eventually convicted of fraud and sentenced to seven years in prison.

Why He Got Away with It: Satyam’s strong reputation in India’s booming IT industry shielded Raju’s fraudulent activities from scrutiny for years.

8. Jerome Kerviel (Société Générale)

Jerome Kerviel was a junior trader at Société Générale, one of France’s largest banks, when he racked up $7.2 billion in losses through unauthorized trades. Kerviel manipulated the bank’s risk management systems to cover up his increasingly risky trades, which eventually led to one of the largest trading scandals in history.

Kerviel was sentenced to five years in prison, although he claimed that his superiors were aware of his activities and turned a blind eye as long as he was making money.

Why He Got Away with It: Kerviel was able to exploit the bank’s weak internal controls and risk management systems, concealing his trades for years before they blew up.

9. Paul Bilzerian (Corporate Raider Fraud)

Paul Bilzerian, father of social media star Dan Bilzerian, made a name for himself as a corporate raider in the 1980s. Bilzerian orchestrated hostile takeovers of struggling companies, using illegal stock manipulation and insider trading to profit from these deals. He defrauded investors out of millions by manipulating stock prices and creating false reports.

Bilzerian was convicted of securities fraud in 1989 and sentenced to prison. Despite his conviction, he continued to fight legal battles for years, claiming he was unfairly targeted by regulators.

Why He Got Away with It: Bilzerian exploited the high-risk, high-reward environment of corporate takeovers in the 1980s, operating in a gray area that allowed him to commit fraud under the guise of legitimate business.

Conclusion: The Fraudsters Who Flew Under the Radar

While names like Bernie Madoff and Enron have become synonymous with fraud, these lesser-known con artists managed to swindle billions while flying under the radar. Whether through charm, deception, or complex financial schemes, these fraudsters left a trail of devastation behind them, proving that not all crooks make the headlines—but their crimes are just as serious.

Next time you hear about the rise of a new business “genius,” it’s worth remembering: not every success story is what it seems. Some are built on lies, and by the time you find out, the damage is already done.