Ian Hogarth
Partner, Plural Platform at independent
Reviewed Updated Jun 14, 2026This profile is AI-generated. If you spot an error, please help us fix it by sharing a URL to the correct information.
Background
Ian Hogarth is a British investor, entrepreneur, and AI policy figure. He studied information engineering at the University of Cambridge (first-class honors), specializing in machine learning during his Master’s, and spent a year at Tsinghua University in Beijing studying Mandarin Chinese 12. He built an early computer-vision cancer classification system as a student in 2004 2.
In 2007 Hogarth co-founded the concert discovery platform Songkick with Michelle You and Pete Smith, as part of Y Combinator’s Boston cohort 13. Songkick scaled to roughly 12-15 million monthly unique visitors, raised more than $20M in venture capital, and famously sued Ticketmaster for anti-competitive behavior; the suit settled in 2018 for $110M plus a $10M criminal penalty paid by Ticketmaster to the U.S. Department of Justice 13. He also co-founded Silicon Milkroundabout in 2010, a startup careers fair in East London 1.
Hogarth has been an active angel investor since 2014, primarily backing machine-learning companies; he reports investments in 50+ ML startups and 150+ companies overall 42. In 2021 he co-founded Plural Platform with Wise co-founder Taavet Hinrikus, former Skype executive Sten Tamkivi, and former Bigpoint CEO Khaled Helioui, where he is a Partner 31. Plural launched a €250M entrepreneur-led fund for European tech startups in 2022 5.
Since 2018, Hogarth has co-authored the annual State of AI Report with Nathan Benaich, which he describes as “the most widely read, free to access report on progress in AI” 21. In April 2023 he authored the widely circulated Financial Times essay “We must slow down the race to God-like AI” 1. On 18 June 2023 the UK government appointed him as the first Chair of its Frontier AI Taskforce, which evolved into the AI Safety Institute (now the AI Security Institute) 61. He was named to TIME’s TIME100 AI list in 2023 and appointed Commander of the Order of the British Empire (CBE) 71.
Stated Thesis
On Plural’s site, Hogarth describes himself as drawn to “general-purpose technologies” capable of transforming entire industries — specifically machine learning, quantum computing, and materials science — and to founders tackling challenges including climate change and online safety for children 3. On his personal site he frames the focus as “frontier technology and science investments” 2.
His most-cited investing maxim, repeated across interviews, is to “spend a disproportionate amount of time recruiting extraordinary people” 3.
In his April 2023 FT essay, he publicly argued that the race toward artificial general intelligence carries existential risk and that society — and, by implication, investors — should slow the pace of frontier model development absent stronger safety measures 1. This stance is unusual for an active AI investor and is a defining feature of his public persona.
Inferred Thesis
Based on the verified portfolio entries below (sample size ~12 companies — too small for reliable percentages, so this is qualitative):
- Deep-tech and frontier-science bias. Verified investments cluster in quantum computing (Phasecraft, Proxima Fusion’s adjacent fusion category), AI infrastructure and applications (Anthropic, Helsing, Kheiron Medical, Oriole Networks), and applied ML across vertical domains (drug discovery, defense, healthcare). This is consistent with the stated “general-purpose technologies” framing rather than a divergence from it.
- UK / European focus. Almost every verified investment is in a UK or European company (Phasecraft, Helsing, Kheiron Medical, Oriole Networks, Hopin, Cleo, Songkick alumni network). Plural is explicitly a European fund 5.
- Founders with deep technical credentials. Verified portfolio companies are predominantly founded by PhDs or domain specialists (Phasecraft — quantum researchers; Proxima Fusion — Max Planck spinout; Helsing — ex-Palantir/defense; Kheiron — radiology PhDs).
- Stage: Mix of pre-seed/seed angel checks (Anthropic in early rounds, Cleo, Chorus AI) and Plural-led Series A rounds (Oriole Networks £17M Series A in 2024) 8.
- Public-policy proximity is part of the deal flow. Hogarth’s roles at AISI and UCL IIPP put him in direct contact with frontier AI labs, regulators, and government AI customers — which appears in his portfolio via defense AI (Helsing) and frontier-model infrastructure (Anthropic, Oriole).
Notable observable gap: he publicly argues for slowing the race to AGI but has invested in Anthropic, a frontier AI lab. He has discussed this tension publicly (see Sifted interview 4) rather than hiding it.
Portfolio
| Company | Year | Stage | Sector | Source |
|---|---|---|---|---|
| Songkick | 2007 | Founder | Music/consumer | 13 |
| Anthropic | ~2021 | Early angel | AI/foundation models | 24 |
| Cleo | ~2016 | Early angel | Fintech/AI | 24 |
| Chorus AI | ~2017 | Early angel | Sales AI | 24 |
| Hopin | ~2019 | Angel (exited) | Virtual events | 24 |
| Helsing | ~2021 | Angel | Defense AI | 24 |
| Kheiron Medical | ~2017 | Angel | Healthcare AI / radiology | 24 |
| Phasecraft | ~2019 | Chair / investor | Quantum computing | 23 |
| Proxima Fusion | ~2023 | Plural investor | Fusion energy | 3 |
| Hypersonica | ~2023 | Plural investor | Deep tech | 3 |
| Callosum | ~2023 | Plural investor | Deep tech | 3 |
| Oriole Networks | 2024-10-21 | Plural led £16.9M ($22M) round | AI compute / photonics networking | 8 |
| Faculty | (pre-2023, divested) | Angel | Applied AI | 9 |
| Conjecture | (pre-2023, divested) | Angel | AI safety / alignment | 9 |
| Lakera | (pre-2023, divested) | Angel | AI security | 9 |
| Stability AI | (pre-2023, no-gain arrangement) | Angel | Generative AI | 9 |
| ~unknown | Unitary | active | Investor / director | AI content moderation |
| ~unknown | Hadash | active | Investor / director | Undisclosed |
| Deliveroo | ~2014 | Angel (exited via IPO) | Food delivery | 4 |
| Trussle | ~2016 | Angel (exited) | Fintech / mortgages | 4 |
This table represents a verified subset; Hogarth has publicly stated he has invested in 150+ companies and 50+ AI startups, so this is approximately 10% of his claimed portfolio 24.
In Their Own Words
On general-purpose technologies and people:
“Spend a disproportionate amount of time recruiting extraordinary people.” — Ian Hogarth, Plural Platform bio 3
On the AI race, from his April 2023 Financial Times essay:
“We must slow down the race to God-like AI.” — Ian Hogarth, Financial Times headline and thesis of the essay 1
(Per Seedlist sourcing rules, longer verbatim passages from the FT essay are not reproduced here without re-verification of the exact wording behind the paywall; the headline is itself widely quoted and verifiable via Wikipedia and Time’s TIME100 AI write-up 17.)
On machine learning as an investment category, from Sifted:
Hogarth has described machine learning as a technology that will “eat the world” — extending Marc Andreessen’s “software is eating the world” thesis to ML specifically 4.
(This is a paraphrase summary by Sifted’s editorial team; the headline of the Sifted piece is “AI angel-investor Ian Hogarth: machine learning will eat the world” 4.)
What Founders Say
No independently sourced founder testimonials were located during this research pass. Plural’s site features peer testimonials between the firm’s partners but not portfolio founder quotes specifically attributable to Hogarth. This section should be revisited in a future pass with dedicated searches against Sifted, TechCrunch, Hopin/Helsing founder interviews, and podcast transcripts.
Connections
- General Partner, Plural Platform — alongside Taavet Hinrikus (Wise co-founder), Sten Tamkivi (former Skype executive), and Khaled Helioui (former Bigpoint Games CEO) 359
- Chair, Phasecraft (quantum computing) 92
- Director, Oriole Networks; Proxima Fusion GmbH; Unitary; Hadash; Plural UK Management — per UK government declared interests filing 9
- First Chair, UK AI Safety Institute / Frontier AI Taskforce (June 2023 onward) — worked with UK Prime Minister’s office and DSIT 6
- Divested holdings (on taking AISI chair): Anthropic, Conjecture, Lakera, Faculty; special “no personal financial gain” arrangement on Stability AI 9
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Visiting Professor, UCL Institute for Innovation and Public Purpose (IIPP) 6
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Co-author, State of AI Report — with Nathan Benaich (Air Street Capital), annually since 2018 21
- Co-founder, Silicon Milkroundabout (2010) — with Pete Smith 1
- Spouse: CEO of Supercritical, a carbon removal startup 9
Sources
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Wikipedia, “Ian Hogarth,” accessed June 2026. https://en.wikipedia.org/wiki/Ian_Hogarth↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩
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Ian Hogarth personal website, “About,” accessed June 2026. https://www.ianhogarth.com/about↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩
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Songkick / Y Combinator history as summarized on Plural Platform bio page, accessed June 2026. https://pluralplatform.com/the-peers/ian-hogarth/↩↩↩↩↩↩↩↩↩↩↩↩
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Sifted, “AI angel-investor Ian Hogarth: machine learning will eat the world,” accessed June 2026. https://sifted.eu/articles/ian-hogarth-machine-learning-will-eat-the-world↩↩↩↩↩↩↩↩↩↩↩↩↩
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Ian Hogarth on LinkedIn, “Plural launches €250mn entrepreneur-led fund for European tech start-ups,” 2022. https://www.linkedin.com/posts/ianhogarth_plural-launches-250mn-entrepreneur-led-fund-activity-6947497746245275648-uvze↩↩↩
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UCL Bartlett News, “UCL IIPP Visiting Professor Ian Hogarth to lead UK’s AI Foundation Model Taskforce,” July 2023. https://www.ucl.ac.uk/bartlett/news/2023/jul/ucl-iipp-visiting-professor-ian-hogarth-lead-uks-ai-foundation-model-taskforce↩↩↩
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TIME, “Ian Hogarth: The 100 Most Influential People in AI 2023,” 2023. https://time.com/collections/time100-ai/6309473/ian-hogarth/↩↩
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UKTN, “Ian Hogarth’s Plural leads £17m round for London-based AI startup [Oriole Networks],” October 21, 2024. https://www.uktech.news/ai/ian-hogarths-plural-leads-17m-ai-round-oriole-networks-2024102↩↩
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GOV.UK, “Ian Hogarth’s declared outside interests,” Department for Science, Innovation and Technology, accessed June 2026. https://www.gov.uk/government/publications/ian-hogarths-declared-outside-interests/ian-hogarths-declared-outside-interests↩↩↩↩↩↩↩↩↩