La Boîte à sel has been associated since the 23/24 season with:
- L’espace Jéliote - National Center for Puppetry of OLORON SAINTE MARIE (64)
- L’Hectare - National Center for Puppetry of VENDÔME (81)
- Theater of the 4 seasons - Conventioned stage of GRADIGNAN (33)
These supportive partners have constituted a precious anchorage for the company: artistically supportive, solid humanly, they have allowed us to create in duration and in trust, and to go through these last three seasons with momentum and inspiration.
À Oloron-Sainte-Marie, the collaboration has been particularly fruitful: laboratories and performances of La Tête, diffusion of Track and its associated mediation Le Ptit Track, diffusion of Bad Block — co-produced by the Espace Jéliote — during the highlight Au fil de la marionnette 2024, support for the research project DGCA À l'écoute des objets, creation residency of Affects — co-produced by the Espace Jéliote —with a public meeting, and a connection with the Béarnaise artist Natacha Sansoz who has since joined the project. A seminar of the company has also been hosted. It is also at the invitation of Oloron that the exhibition Dans la fabrique de La Boîte à sel — co-produced by the Espace Jéliote —was created, which has since circulated well beyond the Pyrénées. Affects will be created there on November 10, 2026.
À Vendôme, the company has been pampered, it led a laboratory around La Tête during the biennale Avec ou sans fil 2025, before performing La Tête and Bad Block — co-produced by the Hectare —,then in season Le Grand Chut with its mediation Le Ptit Chut. L'Hectare has also supported the DGCA research project À l'écoute des objets and hosted part of the exhibition Dans la fabrique de La Boîte à sel. The CNMa will host a creation residency of Affects — co-produced by the Hectare — in September 2026 as well as its performances for the 2027 biennale.
À Gradignan, a city close to the home of Céline and Thomas who have become resident artists, it is a continuous presence that has naturally settled. Numerous laboratories have been hosted over time, as well as impromptus of La Tête, shared seasonal presentations, two residencies of Bad Block — co-produced by the Theater of the 4 seasons — with public outings and performances, and many laboratories and team seminars. The company is also conducting with the T4S an artistic and cultural education project around sound with 3 Girondine schools in 2026. The exhibition Dans la fabrique de La Boîte à sel, was also presented there in November 2024. A creation residency of Affects — co-produced by the Theater of the 4 seasons — will take place in October-November 2026, for performances in 2027.
During the 23/25 and 24/25 seasons, À Rennes, the association with the Théâtre Lillico (35) for allowed to present Le Grand Chut and Block to the Breton public and to have meetings during its festival Marmaille.
During the 2022/23 season, La Boîte à sel was in territorial artistic residency in Tourville-Sur-Arques in Seine Maritime with DSN - Dieppe National Scene and Dieppe Maritime: five weeks of research laboratory conducted in parallel by the artists and by the children of the whole school on autonomous living objects. A future young audience show resulting from this research is planned for the 2029/30 season: "OUAT (what watt)"
From 2017 to 2019, La Boîte à sel and Très Tôt Théâtre - Quimper - Conventioned stage of Quimper, shared a large artistic and participatory project that resulted in May 2019 in the creation of the show: "Le Grand Chut.". The result of a successful companionship, this show continued its diffusion in France until it reached 70 performances by the end of the 24/25 season.
From 2015 to the end of 2017, La Boîte à sel was in companionship with the Théâtre Ducourneau d'Agen - Conventioned stage theater and voice. The opportunity to create the show "Revers" and to conduct two artistic and participatory projects in the Agen territory:"Galerie", two years of exchanges between the plastic artist Rouge Hartley, Céline Garnavault and the residents of the Montanou neighborhood of Agen, punctuated by collages of portraits - resulting from these meetings - in the heart of the neighborhood, and the publication of a memory book. And "Smaf team", a radio documentary, imagined, designed, and recorded with young middle school students and the social center Saint Exupery of Agen.

