TL;DR

ElevenLabs, the London-based AI voice company, said on Wednesday 30 September that it had closed an employee share sale worth about £226m ($300m) at a valuation of roughly £16.6bn ($22bn). That is double the £8.3bn ($11bn) it was valued at when it raised £377m ($500m) in a Series D round in February.

What happened

Wellington and T. Rowe Price led the tender, joined by existing backers including Andreessen Horowitz and Lightspeed, plus newcomers such as EQT and Goldman Sachs. This was not a conventional fundraise: a tender offer lets staff and existing shareholders sell shares to investors, so it gives them cash without necessarily bringing new money into the company.

The demand behind the price is voice agents. ElevenLabs says its agents now handle upwards of 15 million conversations every week, three times February’s figure, doing work such as refunds, insurance renewals and booking appointments. The company says its models can talk, understand speech and translate in over 90 languages.

“We’re already seeing rapid adoption of expressive voice agents by enterprises and governments,” said co-founder and chief executive Mati Staniszewski, who started the company in 2022 with Piotr Dabkowski.

Why it matters in the UK

For the UK, the point is a London-headquartered AI company being priced at this level, and a share sale large enough to let early staff take money off the table without a stock market listing or a sale of the business.

The voice-agent market is also arriving in British public services at the smaller end. Last week InTouchNow raised £2.3m for an AI phone agent used by GP surgeries. ElevenLabs is also pushing into creative licensing, having signed a remix deal with Universal Music in September.

Competition is rising. Reuters notes Meta is extending its Muse personal agent to small businesses, putting a platform giant into the same customer-service territory.

Looking forward

The test for that valuation is whether conversation volumes keep climbing at that pace as larger rivals bundle agents into existing products. For UK organisations weighing voice agents for customer contact, the figures suggest the technology has moved past pilots, and the questions that remain are about oversight, accuracy and how callers reach a human when they need one.