No GiveWell-equivalent evaluator for UK domestic causes

London hosts world-class effective-giving infrastructure (Founders Pledge, Longview Philanthropy, Giving What We Can, an Open Philanthropy presence), but it channels UK tech wealth almost entirely to global health and catastrophic-risk causes. No organisation publishes rigorous, public cost-effectiveness rankings for UK domestic charities and civic interventions; NPC offers bespoke consultancy, and small efforts (e.g. SoGive) lack scale. Donors seeking evidence-ranked domestic options have nowhere authoritative to look.

CAF shows wealthy Britons cite lack of confidence in impact as a barrier to giving. A trusted domestic evaluator would both raise giving volumes and steer them toward the systematically unfunded categories this map documents, at a cost trivial relative to funds influenced.

An independent UK-domestic evaluator (£2-3m/yr) publishing open cost-effectiveness assessments of UK charities and civic interventions, paired with a pooled 'UK effective giving fund': a natural first grant for Founders Pledge members or the Office for the Impact Economy to catalyse.

// Build now: First artefact: open cost-effectiveness rankings of UK domestic charities from public accounts and evaluations, plus a pooled effective-giving fund.

A trusted domestic evaluator would raise giving and steer it to unfunded fields cheaply, but no dated trigger creates urgency, so it can be built opportunistically.