# British Business Bank's AI Investments: 12 Startups in Its Portfolio (2026)

> The 12 AI startups British Business Bank has backed, by stage: $4.7B raised between them. From the rounds we track; updated nightly.

Source: https://millionrounds.com/portfolio-maps/national-security-strategic-investment-fund-ai-portfolio (Millionrounds; every figure on the page links to its filing or article)

## Pre-seed and seed

5

- [Ineffable Intelligence](https://millionrounds.com/company/ineffable-intelligence)
- [Opteran](https://millionrounds.com/company/opteran)
- [TWYN](https://millionrounds.com/company/twyn)
- [INTELLIGENT MASS SPEC SOLUTIONS](https://millionrounds.com/company/intelligent-mass-spec-solutions)
- [Inntelo AI](https://millionrounds.com/company/inntelo-ai)

## Series C and later

5

- [Wayve](https://millionrounds.com/company/wayve)
- [Fractile](https://millionrounds.com/company/fractile)
- [Elliptic](https://millionrounds.com/company/elliptic)
- [PolyAI](https://millionrounds.com/company/polyai)
- [Stream](https://millionrounds.com/company/stream)

## Series B

2

- [Salience Labs](https://millionrounds.com/company/salience-labs)
- [Cyted](https://millionrounds.com/company/cyted)

## Segment by segment

### Pre-seed and seed

5 startups · $1.1B raised

- [**Ineffable Intelligence**](https://millionrounds.com/company/ineffable-intelligence) Ineffable Intelligence develops machine learning systems that learn through interaction and experience. United Kingdom $1.1B
- [**Opteran**](https://millionrounds.com/company/opteran) Opteran is a UK-based autonomy software company that specializes in creating Natural Intelligence by reverse-engineering the brain United Kingdom $12M
- [**TWYN**](https://millionrounds.com/company/twyn) Twyn develops an AI platform that creates interactive digital twins for voice-based conversations with people and branded content. United Kingdom $2.0M
- [**INTELLIGENT MASS SPEC SOLUTIONS**](https://millionrounds.com/company/intelligent-mass-spec-solutions) Intelligent Mass Spec Solutions develops urine-based mass spectrometry and machine learning diagnostics for adrenal cancer. United Kingdom $1.5M
- [**Inntelo AI**](https://millionrounds.com/company/inntelo-ai) Inntelo AI is a hospitality and real estate technology company based in the UK, founded in 2024. United Kingdom $679K

### Series C and later

5 startups · $3.3B raised

- [**Wayve**](https://millionrounds.com/company/wayve) Wayve Technologies Ltd is a British company focused on developing self-driving vehicle systems. United Kingdom $1.8B
- [**Fractile**](https://millionrounds.com/company/fractile) Fractile is a UK-based technology company and semiconductor startup founded in 2022 by Dr. United Kingdom $960M
- [**Elliptic**](https://millionrounds.com/company/elliptic) Elliptic is a leading blockchain analytics and crypto compliance firm based in London, with additional offices in New York, Singap United Kingdom $265M
- [**PolyAI**](https://millionrounds.com/company/polyai) Enterprise voice AI that finishes what your customers start. United Kingdom $209M
- [**Stream**](https://millionrounds.com/company/stream) Stream is an order and menu management solution made simple for restaurants, POS brands, and delivery providers. Saudi Arabia $101M

### Series B

2 startups · $225M raised

- [**Salience Labs**](https://millionrounds.com/company/salience-labs) Salience Labs is a deep-tech semiconductor company based in Oxford, United Kingdom, specializing in all-optical silicon photonic solutions. United Kingdom $169M
- [**Cyted**](https://millionrounds.com/company/cyted) Cyted uses artificial intelligence (AI) and digital pathology to improve the detection and diagnosis of diseases, including cancer. United Kingdom $56M

**How this map is made.** Every startup here works in AI and has raised money in a round we track that names British Business Bank as an investor. Each sits under the stage of its latest round. Rebuilt nightly; updated 15 November 2026.

## More portfolio maps

[All portfolios](https://millionrounds.com/portfolio-maps)

[Sector portfolio **British Business Bank's Fintech portfolio** 10 startups · $632M](https://millionrounds.com/portfolio-maps/national-security-strategic-investment-fund-fintech-portfolio)[Sector portfolio **British Business Bank's Biotech portfolio** 10 startups · $722M](https://millionrounds.com/portfolio-maps/national-security-strategic-investment-fund-biotech-portfolio)[Portfolio map **British Business Bank portfolio map** 53 startups · $8.8B](https://millionrounds.com/portfolio-maps/national-security-strategic-investment-fund-portfolio-map)[Co-investors **Who invests with British Business Bank** 41 co-investors](https://millionrounds.com/portfolio-maps/national-security-strategic-investment-fund-co-investors)[Fund commitments **British Business Bank's fund commitments** 19 managers](https://millionrounds.com/portfolio-maps/national-security-strategic-investment-fund-fund-commitments)[Sector portfolio **Barclays Ventures' Fintech portfolio** 32 startups · $5.6B](https://millionrounds.com/portfolio-maps/barclays-ventures-fintech-portfolio)

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