At its peak during the 1980s and 1990s this is exactly what Inc magazine focused on, businesses making between $10 million and $100 million, the vast middle section of American business, the tens of thousands of medium sized businesses that make up the bulk of the economy. And Inc was very popular, because at that time it was a very popular idea for an entrepreneur to build a business on that scale.
After 2000 that particular ideal faded away, and also the market for what Inc magazine offered faded away. Slowly, but increasingly, the focus shifted to "unicorns." There were a few contributing factors:
1. In the 1950s and 1960s and 1970s it was still possible to start a business and grow it to $20 million, and then remain relatively stable at that level. However, the creation of new businesses has been in decline since the 1970s, a trend partly offset by the explosion of software startups, but still the trend is downwards.
2. Consolidation. In 1999 there were 8,000 businesses listed on all of the USA's stock markets (NYSE, Nasdaq, etc). In 2022, there are only 3,400 businesses listed. These last 20 years have seen the fastest consolidation in the history of the USA.
As such, the middle zone of American business is under pressure. Much more now than before 2000, a business has to get big, or get bought, or go under. So the dream that Inc magazine was selling in the 1980s and 1990s simply isn't realistic any more.
