Lightspeed Venture Partners
US venture capital firm co-leading Ineffable Intelligence's $1.1bn seed round.
Last refreshed: 1 May 2026 · Appears in 2 active topics
Why did Lightspeed co-lead a $1.1bn seed for a company with no product?
Timeline for Lightspeed Venture Partners
Co-led the Helsing funding round
Drones: Industry & Defence: Helsing closes $18bn round, led by DragoneerCo-led $1.1bn seed round
UK Startups and Innovation: Ineffable lands $1.1bn seed, SAIU rides minority- What is Lightspeed Venture Partners and where is it based?
- Lightspeed Venture Partners is a global venture capital firm founded in 2000 with headquarters in Menlo Park, California. It manages roughly $25 billion across consumer, enterprise, fintech, and deep-tech investments, with offices in London, Tel Aviv, Singapore and Beijing.Source: https://lsvp.com
- Did Lightspeed Venture Partners invest in any UK AI companies in 2026?
- Yes. Lightspeed co-led the $1.1 billion seed round for Ineffable Intelligence in April 2026, the largest seed in European history, alongside Sequoia Capital.Source: https://techcrunch.com/2026/04/27/deepminds-david-silver-just-raised-1-1b-to-build-an-ai-that-learns-without-human-data/
- How active is Lightspeed in the UK and European startup market?
- Lightspeed has backed UK and European startups since at least 2014, including Onfido and Fy! in London. Its European presence grew through the 2020s. The Ineffable Intelligence co-lead in 2026 is its largest UK commitment to date.Source: https://lsvp.com
Background
Lightspeed Venture Partners is a global venture capital firm with offices in San Francisco, Tel Aviv, London, Singapore and Beijing. Founded in 2000, it manages approximately $25 billion across multiple funds and invests across consumer, enterprise, fintech, health, and deep-tech at all stages from seed to growth. Its portfolio has included Snap, Affirm, Mulesoft, Nutanix and Epic Games. The firm operates as a decentralised partnership, with each regional team running its own mandate alongside shared global funds.
Lightspeed has been active in UK and European technology since at least 2014 and was an early backer of Fy! and Onfido in London. Its European presence expanded significantly in the 2020s as London's late-stage AI funding market deepened. The firm's London partners have invested across fintech, SaaS, and, increasingly, AI foundation-model companies. Lightspeed does not hold a formal mandate from any sovereign wealth fund and operates independently of government capital programmes.
In April 2026, Lightspeed co-led the $1.1 billion seed round for Ineffable Intelligence alongside Sequoia Capital. The round was unusual: a pre-revenue, pre-product research lab raising at Series-A scale before Series A existed. Lightspeed's participation signals the firm's willingness to treat foundational AI research bets similarly to the deeptech hardware bets it has made in the United States. The move confirms that the dominant capital logic at the UK's training-tier AI layer is American growth equity, not UK institutional or sovereign capital.