BackgroundCreating strong partnerships with community organizations is essential to testing implementation of evidence-based interventions. Given the time and investment needed build relationships, partners are often chosen based on convenience, rather than capacity or diversity. Streamlined processes are needed to identify qualified, diverse, and invested partners to conduct community-based implementation research. Currently there is a gap in the literature on effective and efficient methods for recruiting implementation partners. The goal of this paper is to fill that gap by describing a novel process for identifying a diverse group of community organizations to participate in implementation research.MethodsWe used a community-guided Request for Partners (RFP) approach to recruit implementation partners to participate in a cluster-randomized hybrid implementation-effectiveness study of the Veggie Van mobile produce market model. The multi-state RFP process included formative work to inform RFP development, creation of an outside selection committee, an intent-to-apply round, a full application round, and an in-person training and selection process. Chosen implementation partners receive a toolkit, training, technical assistance and funding to offset the costs of implementing the Veggie Van model and assisting with research. Data was collected to characterize applicant size, location and experience; pre-post surveys were conducted to understand the utility of the in-person training.ResultsWe received 59 intent-to-apply submissions, of which we invited 28 organizations to complete full applications: 17 submitted applications and 12 finalists were invited to the in-person training and selection process. The RFP process took approximately eight months to recruit nine organizations and 32 community sites across five states with a range of size and experience. The process increased understanding of the intervention and implementation partner responsibilities; 63.6% of finalists reported being very to extremely familiar with the Veggie Van model post-training compared to 28.6% pre-training. Only one finalist dropped out (due to significant organizational change).ConclusionsAn RFP process is familiar to even small community organizations that compete for grant funding, but may not have prior research experience. This RFP process streamlined partner recruitment timelines, increased partner diversity and cultivated community among mobile market organizations. It may also improve research transparency, study completion and intervention fidelity.