Listed

1. The ticker must resolve on the London Stock Exchange’s own API. Nothing is included because we believe it is listed.
2. Each is matched to a Companies House record, so the entity is identified rather than assumed from a ticker.
3. Each sits in a sector Founder Capital buys or lends into, and the exchange’s own ICB sector code is stored beside it.
4. Anything above £1bn is marked scale differs and excluded from the sector median — a multi-billion group is not a comparable for a business with £500k–£5m of fees.

This is a curated list against those rules, not a screen of the whole market. The exchange publishes no open endpoint that enumerates instruments by sector, and selecting UK PLCs by SIC code through Companies House returns financing vehicles and foreign bank subsidiaries rather than quoted operating companies.

Market capitalisation from the London Stock Exchange. EBITDA, net debt and net assets from each company's own accounts filed at Companies House, read the same way as every private company here — so the multiple is computed, not taken from a third party. Lenders are shown on price-to-book because deposits and borrowings are their raw material, not leverage, which makes EV/EBITDA meaningless for them.

A multiple is shown only where the last reported earnings have been taken from the company’s own results and the metric named. Twenty of these file their annual accounts at Companies House as a PDF rather than tagged data, so those cannot be read automatically the way a private company’s are. Those rows show price and market capitalisation only.