RFI for Non-Federal Peer Reviewers Travel Services - Sources Sought

The buyer seeks a USA-based organization to provide offsite travel support services for non-federal peer reviewers supporting the scientific review evaluation activities management and service center in Bethesda, MD. The selected vendor must issue airline, bus, and train tickets, while also delivering reporting, invoicing, and billing services. Work volume requires processing an estimated average of 4,240 travel transactions per month based on peer review council round cycles. Additionally, the contractor must supply a secure, authenticated reporting application—typically integrated via a global distribution system—that supports a minimum of 500 registered users and up to 20 simultaneous users. Eligibility restricts participation strictly to onshore USA organizations. The buyer is currently looking for proposals, but the provided text contains no specific budget details, evaluation criteria, or key submission dates.