Wonderdog, a Los Angeles and New York–based preventive health platform for dogs, has launched publicly and announced **$5 million** in pre-seed funding led by consumer venture capital firms WndrCo and Maveron. The company combines at-home blood diagnostics measuring **more than 40 biomarkers** with an AI-powered health tracking app. Wonderdog’s chief medical officer Dr. Evan Antin cites that **one in five dogs** is hiding a disease that will affect its lifespan, dogs can lose up to **75%** of kidney function before showing symptoms, and **one in four** will develop cancer during their lifetime. The diagnostic service works through a membership model: a licensed veterinary technician performs a home blood draw, and the sample is analyzed by Antech. Results are reviewed by a licensed veterinarian and delivered through the app within **three business days**. The standard annual membership is priced at **$249** and includes one at-home collection per year; an enhanced membership at **$448** includes two collections annually. The company frames the value as more than **$1,000** in comprehensive diagnostics for less than **$21 per month**. The Wonderdog app aggregates blood testing results alongside breed, age, medical records, nutrition, medications, symptoms, activity and health events. At the center of the app is Spark, an AI companion trained on each individual dog’s baseline and evolving health history.