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- Ineffable Intelligence
Ineffable Intelligence Valuation, Funding & Investors
Ineffable Intelligence is valued at $5.1B as of April 2026.
Last Ineffable Intelligence valuation
$5.1B
Seed · Apr 2026
Last Ineffable Intelligence funding round
$1.1B
Seed · Apr 2026
Cumulative funding Ineffable Intelligence raised
$1.1B
across 1 funding round
Key investors in Ineffable Intelligence
Sequoia Capital
Lightspeed Venture Partners
Index Ventures
Alphabet
DST Global
EQT Ventures
About Ineffable Intelligence
Ineffable Intelligence builds machine learning systems that learn via reinforcement learning through interaction and experience in simulated or real environments. These systems form a superlearner capable of autonomous knowledge generation, adaptation, and problem-solving across domains.
Founded
2025
HQ
Website
Status
Privately held
Valuation
$5.1B (Apr 2026)
Ineffable Intelligence Valuation
Ineffable Intelligence is currently valued at $5.1B, based on its seed round in April 2026.
The $1.1B round was led by Lightspeed Venture Partners and Sequoia Capital, with participation from NVIDIA, Index Ventures, Bond Capital, Wellcome Trust, Flying Fish Partners and 5 other investors.
Ineffable Intelligence valuation by funding round
| Date | Stage | Valuation |
|---|---|---|
| Apr 2026 | Seed | $5.1B |
Ineffable Intelligence Funding History
Ineffable Intelligence has raised a total of $1.1B across 1 funding round.
Ineffable Intelligence funding rounds
| Date | Stage | Investors | Raised | Valuation | Deal Summary |
|---|---|---|---|---|---|
| Apr 2026 | Seed | Lightspeed Venture Partners (lead); Sequoia Capital (lead); NVIDIA; Index Ventures; Bond Capital; Wellcome Trust; Flying Fish Partners; British Business Bank Investments; Evantic Capital; EQT Ventures; DST Global; Alphabet | $1.1B | $5.1B | Ineffable Intelligence raised $1.1 billion in seed funding at a $5.1 billion post-money valuation. The round was co-led by Sequoia Capital and Lightspeed Venture Partners, with participation from DST Global, NVIDIA, Google, Index Ventures, EQT Ventures & Growth, BOND, Flying Fish Partners, Evantic Capital, Wellcome Trust, British Business Bank ($20 million commitment), and the UK government’s Sovereign AI Fund. The funding supports Ineffable Intelligence's mission to advance frontier AI research, marking Europe's largest seed round and enabling breakthroughs in artificial intelligence development. The round exceeded initial targets, reflecting strong investor confidence in the company's potential amid global AI competition. Founded in 2025 in London by David Silver, former Google DeepMind researcher, Ineffable Intelligence emerged from stealth with this raise. The AI lab focuses on pioneering AI innovations, leveraging Silver's expertise in reinforcement learning and strategic backing from prominent venture firms and strategic investors. |
Who has invested in Ineffable Intelligence?
12 investors have backed Ineffable Intelligence across its funding rounds, including Sequoia Capital, Lightspeed Venture Partners, Index Ventures, Alphabet, DST Global and EQT Ventures.
Lead investors include Lightspeed Venture Partners and Sequoia Capital.
Ineffable Intelligence Investors
| Investor | HQ | Rounds | Role | First check |
|---|---|---|---|---|
| 1 | Participant | Apr 2026 | ||
| 1 | Participant | Apr 2026 | ||
| 1 | Participant | Apr 2026 | ||
| 1 | Participant | Apr 2026 | ||
| 1 | Participant | Apr 2026 | ||
| 1 | Participant | Apr 2026 | ||
| 1 | Participant | Apr 2026 | ||
| 1 | Lead | Apr 2026 | ||
| 1 | Lead | Apr 2026 | ||
| 1 | Participant | Apr 2026 | ||
This data is available for Pro users. Sign up to see all 12 Ineffable Intelligence investors. Start Free Trial | ||||
Benchmark 350K+ Funding Rounds and Disclosed VC Valuation Multiples
Sign up to see data on 350K+ funding rounds and disclosed revenue and EBITDA valuation multiples, from seed, through growth stage, to pre-IPO.
Start Free TrialIneffable Intelligence Competitors
Ineffable Intelligence competitors include listed companies like Presight AI and Haizhi, and private ones like Recursive Superintelligence, Legora, SandboxAQ and Fal.
| Company | HQ | Status | Revenue | EBITDA | Valuation | Revenue Multiple |
|---|---|---|---|---|---|---|
| Private | - | - | $4.7B | - | ||
| Private | $100M | - | $5.6B | 56.0x | ||
| Publicly listed | $825M | $214M | $5.7B | 5.4x | ||
| Private | - | - | $5.8B | - | ||
| Private | $200M | - | $4.5B | 22.5x | ||
| Publicly listed | $93M | ($30M) | $2.1B | 16.3x |
Ineffable Intelligence Public Comps
Ineffable Intelligence is still privately-owned, but its public comps include Presight AI, SenseTime Group, Tenable, XtalPi, CorVel, Fermi, Infleqtion, Shenzhen Intellifusion, UiPath and SoundHound.
| Last FY | EV/Revenue | EV/EBITDA | ||||||
|---|---|---|---|---|---|---|---|---|
| Revenue | EBITDA | Last FY | LTM | 2027E | Last FY | LTM | 2027E | |
| $825M | $214M | 6.3x | 5.4x | 24.4x | 20.8x | |||
| $748M | ($70M) | 6.9x | 5.8x | (73.5x) | 113.7x | |||
| $999M | $31M | 4.1x | 3.9x | 129.9x | 15.3x | |||
| $120M | $22M | 24.8x | 21.5x | 134.0x | (141.6x) | |||
| $959M | $175M | 3.5x | - | 19.1x | - | |||
| - | ($490M) | - | 281.8x | (7.5x) | (63.2x) | |||
| $29M | ($52M) | 92.3x | 64.5x | (50.9x) | (60.0x) | |||
| $200M | ($3M) | 14.3x | 14.6x | (952.5x) | (1086.5x) | |||
This data is available for Pro users. Sign up to see all Ineffable Intelligence competitors and their valuation data. Start Free Trial | ||||||||
Common questions about Ineffable Intelligence
| When was Ineffable Intelligence founded? | Ineffable Intelligence was founded in 2025. |
| Where is Ineffable Intelligence headquartered? | Ineffable Intelligence is headquartered in London, United Kingdom. |
| Is Ineffable Intelligence publicly listed? | No, Ineffable Intelligence is a private, VC-backed company. |
| What is Ineffable Intelligence's valuation? | Ineffable Intelligence was last valued at $5.1B in its seed round in April 2026. |
| How much funding has Ineffable Intelligence raised? | Ineffable Intelligence has raised $1.1B across 1 funding round. |
| What was Ineffable Intelligence's last funding round? | Ineffable Intelligence's last funding round was a $1.1B seed round in April 2026, led by Lightspeed Venture Partners and Sequoia Capital. |
| Who are Ineffable Intelligence's investors? | Ineffable Intelligence's investors include NVIDIA, Index Ventures, Bond Capital, Wellcome Trust, Flying Fish Partners, British Business Bank Investments, Evantic Capital, Sequoia Capital, Lightspeed Venture Partners, EQT Ventures and 2 others. |
| Which companies are comparable to Ineffable Intelligence? | Companies comparable to Ineffable Intelligence include Recursive Superintelligence, Legora, Presight AI, SandboxAQ, Fal and Haizhi. |
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