Ineffable Intelligence
ineffable.ai
Actively hiring
AI Research Labs
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Overview
News
Technologies
Salaries
Products
People
Growth
Offices
Jobs
Financials
Funding and backers
Total raised
$1.1B
1 round on record
Latest round
$1.1B
Seed · Feb 2026 · 7 mo ago
Team
51-200
employees, estimated range
Hiring now
3
+1 posted in 30 days
The money's age
Fresh money
7 months since the last round · and hiring
Momentum
48/100
hiring for its size, in the news, fresh money
Last sign of life
this month
a posting or a news item
The story so fareach stage dated by its source: the company's releases, the press, registers, filings
Tractionpublic signals, read monthly
Web presence
top 7%
of 133.2M domains by links, Common Crawl
Funding rounds
| Round | Date | Amount | Investors | Source |
|---|---|---|---|---|
| Seed | Feb 2026 | $1.1B | — | ft.com |
Registers and programsofficial lists and records that name the company
| Legal entity | Ineffable Intelligence Ltd | its site |
| Registered | 19 Nov 2025 |
Founders and leadersfrom filings, registers and the company's site
David SilverExecutive OfficerSEC Form D
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News
The Ineffable Intelligence cofounders who did not found it
Six new Ineffable Intelligence cofounders arrive from DeepMind, InstaDeep and a Seattle VC. Fortune broke it. None of them founded the company.
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Report
Ineffable Intelligence hires six cofounders from Google DeepMind, InstaDeep, Flying Fish
Ineffable Intelligence adds six cofounders from Google DeepMind, InstaDeep, and Flying Fish after closing a record $1.1 billion European seed
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Report
Exclusive: Ineffable Intelligence adds six "cofounders," hiring veterans from Google DeepMind, InstaDeep and venture firm Flying Fish
The startup, valued at $5 billion, wants to build superintelligence using the same methods that DeepMind used for breakthroughs in games-playing AIs
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Tech stack
Technologies named in job postings at Ineffable Intelligence over the last 12 months, by layer, with the share of postings for each.
Technologies in use
8
Postings analysed
3
Stack modernity
77/100
Languages
Rust
C++
Python
Cloud & platforms
Datadog
GCP
Grafana
Kubernetes
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Full Ineffable Intelligence tech stack
8 technologies · by team · pay by technology · changes · similar stacks
People
David Silver
Executive Officer
George Rose
Director
Names and roles come from public filings, company registers and the company's own site. Is this you? Correct or remove · How we handle this data
Growth
Hiring Momentum
28/100
Slowing
Open positions
3
0 opened / 0 closed in 30 days
ATS activity
Every ~5 hours
09/28/2026
Hiring Dynamics
0%
Hiring Focus
The percentage next to each role is its share of the company's job openings over the last 90 days; the arrow shows the shift versus the previous period.
DevOps
50% ▼
Industrial Engineering
50% ▲
Offices
Where the company hires and what each office is for
Cities
2
Hiring now
1
Countries
1
Busiest office
London
Altrincham
United Kingdom
HQ
London
United Kingdom
Regional office
3 open roles 2 posted in 90 days 67% engineering 50-200 est. staff
hires for AI/ML, DevOps, Industrial Engineering
Jobs
≈ $74k – $180k per year (Estimated) • In office • Full-Time • London
Python
Rust
Reinforcement Learning
DevOps
GCP
Datadog
Kubernetes
Grafana
Apply
≈ $150k – $292k per year (Estimated) • In office • Full-Time • London
Reinforcement Learning
Apply
Financials
Total raised
$1.1B
Latest round
Seed
Funding rounds
1
Funding rounds
| Round | Announced | Amount | |
|---|---|---|---|
| Seed | 2026 | $1.1B | Details |