Legis1 is a congressional intelligence platform built for professionals who need to understand how legislation, influence, and policy actually move through Washington — not just what gets introduced, but who is driving it.

We combine 45+ years of congressional and lobbying data — covering 200K+ bills, 140K+ lawmaker and staff profiles, 810K+ lobbying disclosures, and 30K+ hearings — into a single networked platform. Every record connects to every other: a piece of legislation links to the lawmakers sponsoring it, the staff drafting it, the lobbyists pushing it, and the organizations funding those lobbyists.

Legis1 was conceived within the Sunwater Institute, a nonpartisan research organization focused on improving the capacity, transparency, and effectiveness of Congress. Legis1 was spun out as an independent company in 2025.