The Italians had a virtual monopoly in the building trade until the 1680s.
For many decades, the company held a virtual monopoly on the banana trade throughout much of the world.
Until recently it has had a virtual monopoly on the business, but that may be about to disappear.
The Bells still have a virtual monopoly over much of the local market, but most experts say there is nothing natural about it any more.
Finally, his economic reforms began the development which led to Athens' virtual monopoly of trade in later times.
Bill Gates thought his virtual monopoly could never be understood in the old physical terms.
Boeing has a virtual monopoly on the 757 class of airplane.
In part this is because it has a virtual worldwide monopoly.
At one point, he held a virtual monopoly of Mexico's sugar industry.
This created a virtual monopoly in some areas, soon overturned.