After contesting the last two seasons with Tanner Foust and Emma Gilmour as its two drivers, McLaren revealed in December that the duo would depart the team after achieving a best finish of second - in the 2022 Energy X-Prix in Uruguay and in Scotland's Hydro X-Prix last season.
Ekstrom, who raced for the Acciona Sanz team last year as a replacement for Carlos Sainz Sr following his back injury sustained on the Dakar Rally and Gutierrez, the 2022 XE champion with Lewis Hamilton's X44 team, will form an all-new line-up as XE prepares to bow out in its current guise at the end of the season.
It was confirmed to Autosport in January that the hydrogen-based Extreme H championship that is due to begin in 2025 will not run alongside its electric forebearer, which will duly end its four-year run with November's Valley X-Prix in Phoenix.
Joining McLaren brings together two-time DTM champion Ekstrom and his old rival from the German tin-top series Gary Paffett, who is sporting director of McLaren's XE operation.
The 2016 World Rallycross champion finished second in the standings last year with Laia Sanz, and previously raced for the Abt Cupra team in 2021 alongside Claudia Hurtgen and Jutta Kleinschmidt.
Team boss Ian James said the signing of Ekstrom and Gutierrez was "a testament to our commitment to the series and underlines that we are competing in Extreme E with a clear goal: fighting for the championship".
Source: Autosport