The Economic Times

In 2009, Germany's Robert Brandl began Tooltester with just $200; by 2023, the business had grown to $120K in monthly revenue

Robert Brandl started Tooltester in 2009 with roughly $200. There was no big operation behind it. The basic idea was to help people sort through the growing number of software tools used to run websites and online businesses. By 2023, Tooltester was generating about $120,000 a month, turning a small experiment into a $1.4 million a year business.