Butch Harmon - $1,500 per hour
Famously worked with Tiger Woods from 1996 - 2002, when Tiger won his first eight majors.
Harmon, son of 1948 Masters winner Claude Harmon, is probably the most recognisable coach in the world thanks to his television work, although he has since stepped down from those duties.
During his career, he has not only worked with Woods, but also cast an eye over the swings of Rickie Fowler and Phil Mickelson among others.
"Sometimes we get so afraid of hitting bad shots (making bad pitches), we don't let ourselves hit (pitch) good ones," says Harmon. "That nugget’s for free."
Hank Haney - $15,000 per day
After Butch came Harmon, who teamed up with Woods for six major titles. They were a duo from 2004-2010.
Haney says: "My philosophy as a teacher is to teach my students to become their own best teacher by getting them to understand the flight of the golf ball and how it relates to the swing, with emphasis on swinging the golf club on their own correct swing plane."
Dave Pelz - $20,000 per day
Known for his knowledge on the short game, Pelz's Short Game Bible was a bestseller when released in 1999.
"It's your bad shots and weaknesses, not your strengths that largely determine your scores," he says.
David Leadbetter - $3,500 for three hours
Famous for rebuilding the swing of Nick Faldo in the 1980s, Leadbetter has a particular interest in the mechanics and psychology of golf.
He’s also worked with Michelle Wie, Lydia Ko, Greg Norman and Ernie Els throughout the years.
"Is there such a thing as a technically perfect swing?" says Leadbetter. "If there is, I have yet to see it."
Sean Foley - $1,000 per hour
Another of Tiger’s coaches, Foley worked with the Big Cat from 2010 to 2014. The Canadian also worked with Englishman Justin Rose since 2009 and uses a scientific approach to coaching.
Rose said: "Sean does not look at me as a golfer. He looks at me as an athlete and from a biomechanical point of view. He is not necessarily wrapped up in what makes a swing pretty. He wants what works for me from a scientific point of view. This is not necessarily the position that everyone strives for, but that is what I like about Sean."
Chris Como - $3,000 per half day
Como was a relative unknown before Woods decided to hire him as a swing consultant in 2014.
Known as a deep thinker, it was thought Woods favoured Como because of his knowledge of the golf swing and its relation to injury.
Dave Stockton - $600 per hour
A two-time major champion in his own right, Stockton is known as a guru when it comes to putting.
The American has worked with Mickelson and also wrote a bestseller called Unconscious Putting that was released in 2011.
"The key ideas are simple," says Stockton. "Find your own signature and stick to it, and follow a consistent routine."
Peter Kostis - $500 per hour
Kostis counts Paul Casey and Bernhard Langer among his pupils - and also taught Kevin Costner to play for the film Tin Cup.
Claude Harmon III - $700 per 90 minutes
Harmon III is the third generation of coaches in his family, and he has already gone straight to the top.
The American works alongside Brooks Koepka and Dustin Johnson to name just two of his current crop of stars.
He is currently considered one of the best in the business in 2020.
Watch our video at the top of this page for our recent exclusive interview with Claude Harmon during a Cobra Puma Golf launch event.