Quell-preview

Quelltx

Quell

Private

London, EnglandHealthcare & Life Scienceswww.quell-tx.com

Last Round

Strategic

6/9/2023

Total Funding Raised

$452M

Company Overview

QuellTX is a biotechnology company specializing in the development of T regulatory cells aimed at treating immune system diseases.

Sector

Healthcare & Life Sciences

Verticals

Biotechnology, Drug Discovery, Clinical Trials, Precision Medicine

Business Model

B2B

Customer Profile

Revenue Share, Services & Consulting

AI Layer

Non-AI

Keywords

Treg cell therapyCAR-Treg therapycell therapyimmunotherapyorgan transplant rejectionautoimmune disease therapyliving therapyautologous cell therapyimmune toleranceFoxp3 Phenotype Lockcell and gene therapyCGTimmunosuppression alternativeneuroinflammatory diseaseType 1 Diabetes therapyIBD therapy

Historical Pricing

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Quell Comps

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Company	Status	Est. Valuation	Rev Multiple
OpenAI	Private	$86.0B	~40x
Cohere	Private	$5.0B	--
Competitor 1	Public	$XX.XB	XXx
Competitor 2	Public	$XX.XB	XXx

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Quell Funding Rounds

Historical fundraising activity

Round	Date	Amount Raised	Valuation	Investors	Sources
Strategic	6/9/2023
Series B	11/29/2021
Series A	2/11/2021
Series A	5/20/2019
Series A	3/29/2019

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Quell Investors

Notable investors and investment history

Investor	Rounds
Janus Henderson Group	Series B
SV Health Investors	Series B
Syncona	Series B, Series A
Ridgeback Capital	Series B
Future Fund	Series B
Fidelity Management & Research Company	Series B
British Patient Capital	Series B

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Market signals

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Oct 25, 2025
Presenting data at ACR Convergence 2025.
Oct 25, 2025
Will present data for QEL-005 CAR-Treg cell therapy at ACR Convergence 2025.

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Quell Filings

SEC and related filings with document metadata.

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Quell Filings

SEC and related filings with document metadata.

Frequently Asked Questions

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Firmographic Details

HeadquartersLondon, England

Employee Range131

Year Founded2019

Last Funding6/9/2023

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