The system is run almost entirely inside the City, in what the audit calls project mode. A small Mission Budget Participatif inside the DDCT (2 full-time staff in 2014, 5 in 2016, 6 in 2019 plus interns and a CIFRE doctoral student; nine people and 50 liaisons according to Cabannes in 2017) coordinates every phase; a comité de pilotage chaired by the Secrétariat général with the Mayor's cabinet and the adjointe's cabinet meets weekly, then fortnightly, and takes the operational and rule decisions; the Mayor and her adjointe (Pauline Véron 2014-2020, Anouch Toranian from 2020) carry it politically; the technical departments, through a heterogeneous network of liaisons, instruct and build the projects, with more than 960 agents involved in 16 departments and 18 borough halls. Borough halls signed the 2014 charter and renewed their adhesion yearly, co-financed their pots until 2020, and still preside the commissions and settle the local ballot; the Conseil de Paris votes the money each December. Outside the City, the standing partners are the associations paid 100,000 euros a year through appels à projets to accompany residents of the quartiers populaires (seven in 2018, five in 2021, eight in 2022, ten in 2024), contractors hired in 2018 and 2019 to mobilise passers-by at voting points, the association Mieux Voter for majority judgment since 2021, the Eudonet vendor of the BPnet back office, and the social landlords who host projects and have run their own PB since 2017. Conseils de quartier deposit projects, hold public meetings and sit in the commissions' collège vie citoyenne; the audit says they turned the PB from a threat into an opportunity. The accountability holders are thin: the Commission parisienne du débat public held one session on the PB in 2018; the Groupe Écologiste asked for the audit; the Belleville neighbourhood council voted a motion of disappointment in 2023. The audit and the PB department both note that the subsidised associations sit uneasily between contractor and independent advocate, and Brahimllari adds that they cannot fully back residents in controversial cases.