Les Mills International
Les Mills International is a New Zealand company that is the world's largest provider of choreographed exercise-to-music group fitness classes distributed to health clubs. The first Les Mills program was BodyStep, with BodyPump being the first program released internationally. There are currently 14 programs, 10 which are classified as "Group Fitness", four which are High Intensity Interval Training (HIIT) programs and one that is classified "Youth Fitness".
Beginning in the 1980s, Phillip Mills developed a series of exercise-to-music fitness programs that would later become the Les Mills Group Fitness programs. Mills developed them for use in the gym chain owned by his father in Auckland, officially releasing the first one, Pump, in 1990. In 1995, after experiencing success with Pump in New Zealand, Phillip Mills, with the support of his family and Bill Robertson, an Australian fitness industry leader, released Pump in Australia. Convinced by the product's success in Australia as well as New Zealand and enticed by what he perceived as a gap in the health and fitness market worldwide, Mills founded Les Mills International in 1997 with the purpose of developing further programs and licensing them for use around the globe. The programs have expanded to more than 15,000 gyms and health clubs in 75 countries, with an estimated 90,000 Les Mills Instructors worldwide and an estimated 6 million participants every week attending a Les Mills class.
In 2004, Phillip Mills was Ernst & Young's New Zealand Entrepreneur of the Year, and the following year he competed in Monaco as a finalist for Ernst & Young's World Entrepreneur of the Year award. In 2005, Les Mills International was named New Zealand Services Exporter of the Year by NZ Trade and Enterprise and, in 2007, he and wife Jackie Mills co-authored the book Fighting Globesity - A Practical Guide to Personal Health and Global Sustainability.
- BodyPump was the first of the Les Mills programs to be distributed internationally.
Since 2015, the Les Mills gym in Newmarket Auckland has been offering a 40-minute multi-peak cycle class where clients become immersed in a three-dimensional world created by digital graphics and audio. THE TRIP™, as this new group exercise program is called, essentially plays with the body's senses and transport people to different worlds and spaces with its massive screen and powerful sound system, taking motivation and energy output to the next level. 
- Felstead, Bishop, Fuller, Jewson, Lee, Unwin (2006). "Moving to the music: Learning processes, training and productive systems - the case of exercise to music instruction" (PDF). London, United Kingdom, p.6.
- "Les Mills International Corporate Website". Les Mills International Corporate Website. Les Mills International. Retrieved 26 November 2012.
- "LMI Corporate Website - Our History". Company history - LMI Corporate website. Les Mills International. Retrieved 26 November 2012.
- "Les Mills Unleashes New World-Class Gym In Britomart Auck". Scoop.co.nz. 12 April 2011. Retrieved 26 November 2012.
- "Ernst & Young List of winners of NZ Entrepreneur of the Year". Ernst & Young List of winners of NZ Entrepreneur of the Year. Retrieved 26 November 2012.
- "LMI Corporate site - PHILLIP MILLS APPOINTED JUDGE FOR 2006 ERNST AND YOUNG WORLD ENTREPRENEUR OF THE YEAR AWARD". LMI Corporate site - News Releases. Les Mills International. Retrieved 26 November 2012.
- Phillip; Mills, Jackie (2007). Fighting globesity : a practical guide to personal health. Auckland, N.Z.: Random House New Zealand. ISBN 978-1869418540.
- "Les Mills' 3D digital export". Stuff. Retrieved 2015-12-03.
- Lythe J., Pfitzinger, P. Caloric expenditure and aerobic demand of Bodystep, Bodyattack, Bodycombat and RPM. Auckland: UniSports, University of Auckland, New Zealand, 1999:15.
- Pfitzinger P, Lythe J. The aerobic demand and energy expenditure during BODYPUMP. Auckland: University of Auckland, 1999:17
- Lythe, J., Pfitzinger, P. and Ho, D. The Physical and Psychological Response to 13 weeks of Structured Group-fitness Exercise in Untrained Individuals. UniSports Centre for Sport Performance, University of Auckland, New Zealand, 2000:33.
- Stanforth, D., Stanforth, P.R., & Hoemeke, M.P. (2000). Physiologic and metabolic responses to a Body Pump workout. Journal of Strength and Conditioning Research, 14, 144-150.