Companies decide to move quietly, but the decision touches public registers at every step: the lease that started the clock, the accounts that disclose commitments winding down, the hiring that outgrows the floor plate, the leadership change that triggers the rethink. Signal reads those registers weekly, corroborates them against each other, and ranks every London company by when it will go to market — not just whether.
The industry sells lease-event lists, but an expiry with nothing around it is as likely a renewal as a move. Signal weighs the corroborating signals — leadership change, sustained hiring, space pressure, filings — that separate the renewers from the movers.
Occupiers start searching roughly nine months to a year and a half before a lease event, scaled by their size. Signal ranks by market-entry timing, not raw expiry dates — the difference between calling during the search and calling after the signing.
Most databases match companies to addresses by string similarity — and London addresses are ambiguous. Signal resolves companies to actual buildings via UPRN and TOID (Ordnance Survey’s unique property identifiers), so a lease event, a planning consent and a rates record at the same building genuinely connect.
HM Land Registry lease events, Companies House filings, local-authority planning, hiring and growth — read continuously across 155,131 London companies.
Every company is ranked 0–100 by how strong, recent and combined its signals are. 60+ is in market; 80+ is imminent. Scores re-run weekly.
Your dashboard opens on your patch: ranked companies, the why-now in one line, timing window, and a decision-maker to call.
Lease expiry, break clause, stay-vs-go, market entry, occupier rep, corroboration — every lead states its window and cites the register entries behind it.
Book a 20-minute demo and we’ll open the live list for your patch — real London companies, scored and timed, this week.
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