![]() Stealth BioTherapeutics Stealth BioTherapeutics is a clinical-stage biopharmaceutical company developing investigational drugs for the treatment of diseases involving mitochondrial dysfunction. | ![]() Oxford BioTherapeutics Oxford BioTherapeutics develops medicines for cancer and companion diagnostics for selected antibody programs. | ![]() Orchard Therapeutics Orchard Therapeutics is a biotechnology company that develops transformative ex vivo autologous hematopoietic stem cell gene therapy. | ![]() Cogent Biosciences Cogent Biosciences (formerly known as Unum Therapeutics) is a biotechnology company that designs precision therapies to treat genetically driven diseases. | |
Founding Date | Founding Date 2007 | Founding Date 2004 | Founding Date 2015 | Founding Date 2014 |
Type | Type Public | Type Private | Type Subsidiary | Type Public |
Tags | ||||
Locations | Locations Newton, US HQ Needham, US | Locations Milton, GB HQ San Jose, US | Locations London, GB HQ Boston, US Boston, US Foster City, US Menlo Park, US | Locations Waltham, US HQ Boulder, US |
Employees | Employees 592% decrease | Employees 504% increase | Employees 166 | Employees 25826% increase |
Valuation ($) | Valuation ($) 18.4 m | Valuation ($) N/A | Valuation ($) N/A | Valuation ($) 1.3 b |
Financial | ||||
Revenue (est.) | Revenue (est.) N/A | Revenue (est.) £2.1m (FY, 2018) | Revenue (est.) $22.7m (FY, 2022) | Revenue (est.) N/A |
Net income | Net income ($52.5m) (FY, 2021) | Net income (£6.5m) (FY, 2018) | Net income ($150.7m) (FY, 2022) | Net income ($328.9m) (FY, 2025) |
Funding | ||||
Total funding raised | Total funding raised $ 100m | Total funding raised $ 21.6m | Total funding raised $ 310.7m | Total funding raised $ 178.3m |

Oxford BioTherapeutics develops medicines for cancer and companion diagnostics for selected antibody programs.
View company
Orchard Therapeutics is a biotechnology company that develops transformative ex vivo autologous hematopoietic stem cell gene therapy.
View company
Cogent Biosciences (formerly known as Unum Therapeutics) is a biotechnology company that designs precision therapies to treat genetically driven diseases.
View company