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Quell Therapeutics

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Engineered T-regulatory cell therapies for immune-driven diseases

London, United KingdomFounded 2019Biotech & Life Sciences
Valuation $500M–1B Last recorded · 2026
Revenue $50–100M Latest reported FY
Headcount 100–500 Current team size
Unlock exact values This page shows ranges. Dealroom has the exact numbers for Quell Therapeutics and the history behind them.

At a glance

Founded
2019
Headquarters
London, United Kingdom
Sector
Biotech & Life Sciences
Power Law
Colt$25–100M revenue

Latest news

Press, funding announcements and product moves mentioning Quell Therapeutics.

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Investors

17 investors on the cap table

From Dealroom's funding and investor records, grouped by the round each investor first entered.

Series A3 investors entered at this stage

  • AlbionVC
  • UCL Technology Fund
  • Syncona

Series B and later14 investors entered at this stage

  • Monashee Investment Management
  • Medizinische Hochschule Hannover
  • Ridgeback Capital
  • King's College London
  • British Patient Capital
  • Janus Henderson Investors
  • Breakthrough Energy Ventures
  • University College London
  • Future Fund
  • Jeito Capital
  • Fidelity Investments
  • SV Health Investors
  • Tekla Capital Management
  • Point72 Ventures

Ownership

Share of equity by holder

Estimated cap table from Dealroom's shareholder data — share of equity by holder. Stakes as last recorded by Dealroom (2026). Percentages are indicative.

Some investors are hidden on this public profile. See the full cap table on Dealroom →

Founders Hidden — book a demo/100 quality score
Key operators Hidden — book a demo quality score
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Global footprint

Workforce and web traffic by country
Workforce by country
🇬🇧 United Kingdom · London HQ
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Web traffic by country
8.3K monthly visits
across markets
🇬🇧 United Kingdom41%
🇺🇸 United States37.3%
🇮🇳 India9.6%
🇯🇵 Japan6%
🇭🇷 Croatia4.8%
Top 5 markets shown

Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about Quell Therapeutics on X, ranked by likes and reposts, corporate channels excluded.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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Live deal flow, founder pedigree, hiring signals, revenue trajectory, and the full cap table.