WSO vs GH Comparison

Watsco is the largest heating, ventilation, air conditioning, and refrigeration products distributor in North America. The company primarily operates in the United States (90% of revenue), with significant exposure in the Sun Belt states. Watsco also has operations in Canada (5% of sales) and Latin America (5% of sales). The company's customer base consists of more than 125,000 contractors that serve the replacement and new construction HVACR markets for residential and light commercial applications.

Guardant Health, based in Redwood City, California, is a leader in liquid-based cancer tests for clinical and research use. The company offers Guardant360 LDT, a liquid biopsy test for treatment selection in advanced-stage cancer, Guardant360 CDx, an FDA-approved companion diagnostic for several targeted therapies, and Guardant Omni, a broader gene panel for immuno-oncology research. In 2021, Guardant launched Reveal, a tumor-agnostic molecular residual disease test. In 2024, the company received US FDA approval for Shield, a liquid biopsy for colorectal cancer screening. Additionally, Guardant offers research development services such as regulatory approval consultancy and clinical trial referrals.