PBNYC began in 2011 as a partnership between four Council Members and 42 organizations led by Community Voices Heard (community engagement lead) and the Participatory Budgeting Project (technical assistance lead), governed by a Citywide Steering Committee of Council Members, organizations, academics and two district representatives per district. From Cycle 4 (2014-15) the Council Speaker's office took on central coordination: dedicated Central Staff, a PB Fellows program, contracted community-based organizations for outreach, a contracted technical assistance partner, printing, translation and ballot counting. The rulebooks track the shift: CVH and PBP are named project leads in Cycles 2 and 3, listed separately in Cycle 6, only PBP in Cycle 7, and neither in Cycle 9, where Central Staff 'facilitates the PBNYC process' and 'Community-Based Outreach Providers' do targeted outreach. Council Member offices hold the money: each pledges at least $1 million of capital discretionary funds, designates a staff coordinator, determines project eligibility with agencies, resolves ties and submits winners to the budget. Champions inside the Council mattered: Melissa Mark-Viverito piloted PB and, as Speaker, funded central support in 2014; Brad Lander piloted it and led the 2014 discretionary-funds reform; Carlos Menchaca 'oversaw Participatory Budgeting for all of the Council' in Cycles 7 and 8. District Committees of local organizations, institutions, community leaders and former delegates manage PB locally. Budget delegates are volunteers who sign a delegate agreement (hence MOU). City agencies vet feasibility, cost proposals and implement; the Cycle 2 rulebook admits the Steering Committee 'does not have the power to assign responsibilities to City agencies'. The Council's 2018 and 2019 releases name later partners: Coro's PB Youth Fellows and Girls for Gender Equity for youth outreach (since 2015), the Department of Youth and Community Development, LinkNYC and DoITT for voting on 1,700 to 1,800 street kiosks, D21 as the voting technology vendor since 2015-16, the CUNY Mexican Studies Institute for Spanish translation, Arts & Democracy, Manhattan College data analysis students, and the Brooklyn Borough President, who has added $1 million to $1.5 million a year for Brooklyn districts since 2015-16. Research was funded by the New York Foundation, Scherman Foundation, New York Community Trust, Robert Sterling Clark Foundation and New York Women's Foundation.