Welz, originally known as NY COVID TEST, was founded to address the urgent need for accessible COVID-19 testing and vaccinations in New York City. The company's core mission is to provide instant, on-demand medical care, ensuring that individuals can receive essential health services without leaving their location. Welz offers free, same-day COVID-19 tests and vaccinations, delivered by medically trained professionals to homes, workplaces, hotels, or any other required sites. Their market focus primarily includes residents and businesses within the New York City region.

Notable affiliated people and investors have not been publicly disclosed. Key achievements include establishing a robust network of healthcare professionals capable of delivering timely medical services across NYC, significantly contributing to public health during the COVID-19 pandemic. Welz's impact is evident in its ability to provide convenient, accessible healthcare solutions, reducing the spread of COVID-19 by enabling individuals to receive care without exposing themselves to crowded testing centers or clinics.