With the increase in demand for luxury yachts there has been an increase custom boat building companies and yacht charter brokers. Luxury boat building and yacht charter companies are predominantly based in the United States and Western Europe but are also increasingly found in Australasia, Asia and Eastern Europe. European manufacturers such as Azimut-Benetti and Lürssen dominate the very top end of the yacht building market. Some yachts are used exclusively by their private owners, others are operated all year round as charter businesses, and a large number are privately owned but available for charter part time. Weekly charter fees range from a few tens of thousands of dollars a week to nearly a million dollars a week. This covers the wages of the crew, but not fuel, food and drink, or other incidental expenses.
Yachts from 23 metres (75 feet) and up qualify for design awards from the Superyacht Society, but at the bottom end of that scale yachts will not necessarily be crewed and many set the minimum length for a superyacht considerably higher. From around 30 metres (98 feet) and up yachts are almost always crewed. A 45 to 50 metres (148 to 164 feet) yacht, the smallest with a generally accepted claim to superyacht status, will usually be a three decker with cabins for 12 guests (that is a preferred number, more common than either 10 or 14, and is found on yachts across quite a wide size range), and for a crew of a similar size.