![]() Castle Biosciences Castle Biosciences is a company developing and commercializing diagnostic and prognostic tests for dermatologic cancers. | ![]() Epic Sciences Epic Sciences is a company developing diagnostics to personalize the treatment and management of cancer. | ![]() Apostle Apostle is a biotechnology company engaged in research, development, and licensing of products and services for diagnosis and treatment of human diseases. | |
Founding Date | Founding Date 2008 | Founding Date 2008 | Founding Date 2017 |
Type | Type Public | Type Private | Type Private |
Tags | |||
Locations | Locations Friendswood, US HQ Phoenix, US | Locations San Diego, US HQ | Locations Menlo Park, US HQ San Jose, US |
Employees | Employees 61013% increase | Employees 4711% decrease | Employees 22 |
Operating ⚠ | |||
Patents (US) | Patents (US) 12 (Q1, 2022) | Patents (US) 5 (Sep, 2022) | Patents (US) N/A |
Trademarks (US) | Trademarks (US) 13 (FY, 2021) | Trademarks (US) 3 (Sep, 2022) | Trademarks (US) N/A |
Funding | |||
Latest funding round | Latest funding round N/A | Latest funding round $ 52m (over 7 years ago) | Latest funding round $ 3.3m (about 7 years ago) |
Total funding raised | Total funding raised $ 46.5m | Total funding raised $ 152.5m | Total funding raised $ 5.7m |

Epic Sciences is a company developing diagnostics to personalize the treatment and management of cancer.
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Apostle is a biotechnology company engaged in research, development, and licensing of products and services for diagnosis and treatment of human diseases.
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