Under the deal, Betway will remain as the official betting sponsor of the competition, which this year takes place from 16-24 July in Rothenbaum.
The expanded agreement covers both the men’s and women’s competitions at the Open.
The 2022 Hamburg European Open will feature players such as Denmark’s Holger Rune, Spain’s Alejandro Davidovich Fokina, Danielle Collins of the US and tournament ambassador Andrea Petkovic from Germany.
“We are delighted to announce the expansion of our partnership with Betway,” tournament director Sandra Reichel said. “They came aboard last year in unusual times with a multi-year deal and now they have committed even more generously to the idea of a men’s and women’s tournament.
“They are supporting us in making history with the combined event returning to Hamburg after 44 years.”
Betway’s chief executive Anthony Workman added: “We are very proud to continue our fantastic relationship with Hamburg European Open. This year, we are also extremely happy to be creating a piece of history as we partner with the women’s tournament.
“It’s very important for the women’s game to receive support in order to allow it grow, so it’s great that we’ve been able to play a part in this via our partnership with Hamburg European Open.”