British Business Bank

Activity from announced rounds

Activity in this selectionOct 18, 2026 · Jul 21, 2026

British Business Bank is the UK’s economic development bank, supporting business access to finance through investment programmes, funds and financing partners.

Its Future Fund: Breakthrough programme, delivered by British Patient Capital, co-invests with private investors in later-stage, R&D-intensive UK companies. It targets technologies such as quantum computing, cleantech and life sciences, where development requires substantial capital.

Applications to that programme come from a qualifying sponsor investor, rather than directly from the company. The published criteria require a round of at least £30 million, with the programme contributing no more than 30% on the sponsor investor’s terms.

Sources
Rounds participated in
4
Confirmed lead rounds
1
All roles disclosed
New companies
4
First participation on record · 0 follow-on
Funding in participating rounds
$452.1M
4 disclosed · full round size, not this investor’s share

By stage

Series A1
Series B1
Series C+1
Undisclosed1

By primary sector

Hardware2
Biotech1
Climate tech1

By country

United Kingdom4

Rounds

4 in this selection
OMass Therapeutics

OMass Therapeutics develops small-molecule medicines for endocrine and immune diseases using a platform that measures drug targets in their biological surroundings.

$310MSeries C
Participant
Salience Labs

Salience Labs develops silicon photonic switches for datacenter operators connecting large AI computing clusters.

$125MSeries B
Participant
CSignum

CSignum makes wireless communications technology that lets IoT sensors transmit data from underwater and underground infrastructure without conventional cable runs.

£2.6MFollow-on funding
Participant
Certain Energy

Certain Energy develops hydrogen-manganese flow batteries to help electricity grids and renewable generators store power for periods of low wind and solar output.

£10MSeries A
Lead