Steffen Tjerrild
About Steffen Tjerrild
Steffen Tjerrild is a co-founder of Synthesia, the London-based AI video platform. Crunchbase lists him as COO and co-founder since March 2017. Other profiles describe him as COO, CFO and co-founder. Crunchbase also lists an earlier co-founder role at Coincall.
He studied at Copenhagen Business School. Crunchbase lists a BA in Economics and Business Administration (2010 to 2013) and an MSc in Applied Economics and Finance (2013 to 2015). He is based in London. A Web Summit speaker bio says Synthesia is used by more than 55,000 businesses to create AI avatar videos.
Crunchbase lists 6 personal investments, and CB Insights lists 3. Counts differ by database, so treat them as approximate. Public records show him joining rounds alongside institutional leads.
In May 2026 he was named as an angel in Prelude's $20M (EUR 17.2M) Series A, led by 20VC. Earlier, he joined a pre-seed round for Awdio led by SNÖ Ventures, alongside other Danish angels. CB Insights shows a Seed II investment in Pluto.markets on 5 February 2026.
On the Lounge deals desk, he is recorded in the BottleCap AI $7.5M seed round (January 2026). 20VC led the round. Sifted coverage summarised on Dealroom says BottleCap is building more efficient LLMs. It plans to commercialise through LLM-powered applications and has launched a news app called Pulse.
Crunchbase and Tracxn also list Context.ai, a product analytics platform for LLM applications, in his portfolio. Crunchbase marks it as an exit. Prelude, which builds onboarding and trust infrastructure, is another recent angel investment.
He invests as an individual angel, usually in rounds led by funds. The rounds above are pre-seed, seed and Series A. Tracxn lists his top sectors as Enterprise Applications and High Tech. His recorded deals are in the UK, the Czech Republic, France and Denmark-linked companies. He has not publicly stated a check size or investment thesis that we found.
- BottleCap AI: Prague-based startup building more efficient LLMs; $7.5M seed led by 20VC, January 2026.
- Prelude: onboarding and trust infrastructure platform; angel in the $20M Series A led by 20VC, May 2026.
- Context.ai: product analytics for LLM applications; listed as an investment and exit on Crunchbase.
- Awdio: angel in a pre-seed round led by SNÖ Ventures.
- Pluto.markets: Seed II investment recorded by CB Insights on 5 February 2026.
- crunchbase.com/person/steffen-tjerrild
- tracxn.com/d/people/steffen-tjerrild/__VZcaK00Yy9msaeVvZoG0uQQik_gcQ63
- cbinsights.com/investor/steffen-tjerrild
- startupintros.com/news/2026-01-29-bottlecap-ai-seed
- app.dealroom.co/news/feed/google-and-meta-alumni-raise-7-5m-to-build-1
- tech.eu/2026/05/20/20vc-leads-20m-series-a-investment-in-onboarding-st
- eu-startups.com/2026/05/paris-based-prelude-raises-e17-2-million-serie
- nordic9.com/news/awdio-announced-a-pre-seed-investment-round-backed-by
Investing activity
Steffen Tjerrild appears in 1 AI deal tracked by the Lounge deals desk. The rounds are mostly Seed, with a median round size of $8M. The most recent is BottleCap AI (Seed, $7.5M, Jan 2026).
Steffen Tjerrild most often invests alongside The Twenty Minute VC, Mika Vormoo, Thomas Wolf and Illusian Founder Office, and the companies they back on Lounge are mostly in AI.
Deals
Frequently asked questions about Steffen Tjerrild
Who is Steffen Tjerrild?
He is a co-founder of Synthesia and its COO and CFO, based in London. He also invests as an angel in early-stage startups.
Did Steffen Tjerrild invest in BottleCap AI?
Yes. He is listed as an investor in BottleCap AI's $7.5M seed round from January 2026, which 20VC led.
What stage does Steffen Tjerrild invest in?
His public deals span pre-seed (Awdio), seed (BottleCap AI, Pluto.markets) and Series A (Prelude). He typically joins rounds led by funds.
What is Steffen Tjerrild's check size?
It is not public. We found no stated check size or range, so ask him directly.
Which AI startups has Steffen Tjerrild backed?
Public records show BottleCap AI, Context.ai and Prelude. Context.ai is marked as an exit on Crunchbase.
How can founders reach Steffen Tjerrild?
He has a LinkedIn profile listed on CB Insights. We found no personal website or X account, and a warm introduction through a shared investor or founder is the common route.
Is Steffen Tjerrild an angel investor?
Yes. Steffen Tjerrild invests personally as an angel.
What AI companies has Steffen Tjerrild invested in?
Steffen Tjerrild's AI investments include BottleCap AI. The 1 round on Lounge are listed on this page with amounts, dates and co-investors.
What stage does Steffen Tjerrild invest at?
In the rounds tracked on Lounge, Steffen Tjerrild has invested at Seed, with a median round of $8M.
Who does Steffen Tjerrild co-invest with?
Steffen Tjerrild's most frequent co-investors on Lounge are The Twenty Minute VC (1 deal), Mika Vormoo (1 deal), Thomas Wolf (1 deal), Illusian Founder Office (1 deal) and 20VC (1 deal).