Massimo Calvelli began serving as ATP Chief Executive Officer on 1 January 2020. The Italian has been a highly respected sports executive in global sales, marketing, operations and product development for the past 20 years. Most recently, Calvelli was employed by Nike where he worked across multiple functions and oversaw all aspects of global tennis sports marketing. During his time at Nike, he led negotiations with many of the sport's global icons. Previously, Calvelli was the Global Business Director for Wilson Sporting Goods.

Calvelli was the unanimous choice of the ATP Board of Directors, appointed as ATP Chief Executive Officer beginning 2020. A former professional tennis player, he oversaw all aspects of global tennis sports marketing at Nike and served as Global Business Director for Wilson Sporting Goods.

Mark Young previously worked with the law firm of Smith Hulsey and Busey, and as a senior attorney with The Charter Company prior to joining the ATP.

Mark has served as Vice Chairman since May 2015. As Vice Chairman, he oversees the following five key areas of the ATP: tournament relations, management of all ATP media rights & assets, legal counsel, rules & competition, and management of Ponte Vedra Beach office. Mark previously served as the ATP's General Counsel, a role he held since joining the ATP in 1990. In his capacity as ATP General Counsel, Mark has been responsible for negotiating the ATP's major sponsorship deals and television agreements and has pioneered the development of the sport's anti-doping program. Mark was also responsible for the successful defense of the Hamburg litigation in 2008. From January 2006 until his appointment as Vice Chairman, Mark was the ATP's Chief Executive Officer, Americas, overseeing the ATP's operations in North and South America as well as the daily operations of the Ponte Vedra Beach office. Since June 2012, Mark has also served as the ATP’s Chief Media Officer, overseeing the ATP’s interests in the area of broadcast media rights, including television, live streaming, data, live scoring, and other associated rights.

Prior to joining the ATP, Flip Galloway worked for the international consultancy firm Ernst and Young for 14 years, serving many industries, including professional sports.

Galloway has served as the ATP's Chief Operating Officer since January 2006 and the ATP's Chief Financial Officer since he joined the organisation in 1989. Galloway oversees all ATP's operations and directly manages ATP's finance management, budgeting, accounting and tax compliance, strategic planning, human resources, executive recruitment and development, and member benefit plan design and administration. A key executive since the ATP Tour's formation in 1989, Galloway led the process of consolidation between the ATP and Men's Tennis Council that ultimately created the current ATP World Tour. Galloway has been integral in many aspects of ATP's operations since its formation. Galloway works closely with the ATP Board to ensure that ATP is fiscally responsible and generates and maintains sufficient reserves. Galloway developed the ATP's computerised financial budgeting, treasury management and accounting systems and was instrumental in the formation of the ATP player pension program that has grown to more than $100 million in assets, covering more than 800 current and former players. He is based in the ATP's Ponte Vedra Beach office.

Gayle David Bradshaw played college tennis at the University of Oklahoma and then worked as a teaching professional at various country clubs. In 1983, he was hired by the USTA as a Supervisor for their Satellite and Challenger Circuits. In 1984-85, Bradshaw served as an Assistant Referee at the US Open and then was named as Referee for the US Open in 1986 and served in that position until his hiring by the ATP in 1990.

Bradshow joined the ATP in 1990 as a Tour Supervisor. In 1997, he relocated to Ponte Vedra Beach where he served as the Director of Officiating along with his Supervisor duties. In 2007, Bradshaw took over as EVP – Rules & Competition at which time he relinquished his role as a Tour Supervisor. He is based in the ATP’s Ponte Vedra Beach office.

Ross Hutchins announced his retirement from the professional game a couple weeks before assuming his role as the head of the ATP Player Relations department on 1 October 2014. Was appointed Chief Player Officer on 1 January 2016. Diagnosed with Hodgkins Lymphoma in 2012, Hutchins made a full recovery before resuming his career in professional tennis in January 2014.

Hutchins, who turned pro in 2002, captured five ATP World Tour doubles titles during his career and reached a career-high doubles ranking of 26 in May 2012. He served as Tournament Director of the Aegon Championships at The Queen’s Club in 2014.

Alison Lee worked as a journalist in print and broadcast media in Hong Kong and Sydney, prior to joining the ATP. She studied in Australia and Japan to gain bachelor and post graduate degrees as well as an MBA, major in marketing.

Lee leads the ATP International Group which oversees the ATP’s business affairs in Australia, Asia, Middle East, Russia and Africa. Lee began working with the ATP in the International Group’s Communications Department in 1998, before focusing on event management for the season-ending Tennis Masters Cup tournaments in Sydney (2001) and Shanghai (2002, 2005-2008). She is also part of the ATP Commercial team and chairs the ATP Challenger Tour Committee.