APEI vs CSTL Comparison

American Public Education Inc provides online and campus based postsecondary education including various undergraduate and graduate degree programs. The fields of study include business administration, health science, technology, criminal justice, education, liberal arts, national security, military studies, intelligence, and homeland security. There are three reporting segments: the American Public University segment which is the key revenue generator, provides online postsecondary education as a distance-learning, graduate-level institution for military officers seeking a degree in military studies; the Rasmussen University Segment and the Hondros College of Nursing segment. The revenue is generated from net course registrations and enrollment, tuition rate, net tuition, and other fees.

Castle Biosciences Inc is a molecular diagnostics company. The group provides test solutions for the diagnosis and treatment of dermatologic cancers, Barrett's esophagus (BE), and uveal melanoma. The product portfolio of the company includes DecisionDx-Melanoma, a risk stratification gene expression profile (GEP) test; DecisionDx-SCC, a risk stratification test for cutaneous squamous cell carcinoma; MyPath Melanoma, a diagnostic GEP test for use in patients with difficult-to-diagnose melanocytic lesions; and TissueCypher, a test to predict future development of progression of high-grade dysplasia and/or esophageal cancer. The company derives revenues through the delivery of test reports for its molecular diagnostic tests.