How young each sector is
64 of the 105 companies on London Mempool incorporated in 2023 or later are AI.
Age here means time since the company's legal entity was incorporated, read from the Companies House register. 743 of the 759 companies on the map have a date. This note compares the 6 sectors with 20 or more of them.
The youngest is AI: the median AI company was incorporated 5 years ago, against 8 years for all 743 dated companies. The oldest of the 6 is Fintech, at 9 years.
105 companies were incorporated in 2023 or later. 64 of them are AI (61%), while AI makes up 175 of the 743 dated companies overall (24%). Next is Fintech, with 18.
Incorporation can be later than the year a company started, for example when it re-registered a new legal entity, so the founding year on a company page can be earlier.
- AI5 yrs
- Climate7 yrs
- Crypto7 yrs
- Health8 yrs
- Deeptech8 yrs
- Fintech9 yrs
On the map
How we counted: Ages are whole years from each incorporation date to the dataset date; a sector's age is the median of its companies. Other is a catch-all and is left out. Numbers are computed from the dataset as of 9 Oct 2026. Methodology