Marc Gicquel and Michaël Llodra were the defending champions, but Llodra decided not to participate. Gicquel played alongside Nicolas Mahut, but lost in the final to Nikolay Davydenko and Denis Istomin, 4–6, 6–1, [7–10].
Mahesh Bhupathi and Michaël Llodra were the defending champions, but Llodra chose not to participate. Bhupathi played alongside Denis Istomin, but they lost in the quarterfinals to Rohan Bopanna and Aisam-ul-Haq Qureshi.
Bopanna and Qureshi went on to win the title, defeating Daniel Nestor and Nenad Zimonjić in the final, 6–4, 6–3.
Jonathan Marray and Aisam-ul-Haq Qureshi were the defending champions, but Qureshi chose to compete in Hamburg instead. Marray played alongside Adil Shamasdin, but lost in the final to Sam Groth and Chris Guccione, 4–6, 3–6.
Aliaksandr Bury and Denis Istomin were the defending champions, but Bury chose to compete in Kitzbühel instead. Istomin played alongside Dominic Inglot, but lost in the quarterfinals to Purav Raja and Divij Sharan.
This was the first edition of the tournament.
Purav Raja and Divij Sharan were the defending champions but chose not to defend their title.
Sam Groth and Chris Guccione were the defending champions, but Guccione chose not to participate this year. Groth played alongside Leander Paes, but lost in the semifinals to Aisam-ul-Haq Qureshi and Rajeev Ram.
Aisam-ul-Haq Qureshi and Rajeev Ram were the defending champions but Ram chose not to participate and Qureshi chose to compete in Båstad instead.
James Cerretani and Neal Skupski were the defending champions but only Skupski chose to defend his title, partnering Luke Bambridge. Skupski successfully defended his title.
Julien Benneteau and Édouard Roger-Vasselin were the defending champions, but Benneteau decided not to participate this year.
Oliver Marach and Mate Pavić were the defending champions, but chose not to defend their title.
Max Mirnyi and Philipp Oswald were the defending champions, but Mirnyi retired from professional tennis at the end of 2018 and Oswald chose not to participate this year.
Jack Sock and Jackson Withrow were the defending champions, but Sock withdrew from the tournament due to injury. Withrow played alongside Nick Kyrgios, but lost in the quarterfinals to Radu Albot and Yoshihito Nishioka.
Max Mirnyi and Philipp Oswald were the defending champions, but Mirnyi retired from professional tennis at the end of 2018 and Oswald chose to compete in Marrakesh instead.
Marcelo Demoliner and Santiago González were the defending champions, but chose not to participate together. Demoliner played alongside Divij Sharan, but lost in the quarterfinals to Denys Molchanov and Igor Zelenay. González teamed up with Aisam-ul-Haq Qureshi, but lost in the first round to Ivan Dodig and Filip Polášek.
Ben McLachlan and Jan-Lennard Struff were the defending champions, but chose not to participate together. McLachlan teamed up with Luke Bambridge, but lost in the first round to Divij Sharan and Artem Sitak. Struff played alongside Lucas Pouille, but lost in the semifinals to Nikola Mektić and Franko Škugor.
Dominic Inglot and Franko Škugor were the defending champions, but Inglot decided to compete in Vienna instead. Škugor played alongside Nikola Mektić, but they lost to Jean-Julien Rojer and Horia Tecău in the first round.
Nicolas Mahut and Vasek Pospisil were the defending champions, but they chose not to participate.
Romain Arneodo and Hugo Nys were the reigning champions from when the tournament was last held in 2019, but chose to play in Gstaad instead.
Dominic Inglot and Austin Krajicek were the reigning champions from when the tournament was last held in 2019, but chose not to participate this year.
Luke Bambridge 
