Startups

Nestwell
Santa Monica, California, United States
Nestwell, operated by Go Nestwell Inc. in Santa Monica, California, is a digital environmental-health platform helping households assess and improve exposures in their homes. Its Nestwell Score combines address and property information with percentile-based environmental metrics, nearby hazard sites and live geospatial alerts from public data sources. Customers can order kits for certified partner-laboratory testing of water, air, dust, soil, radon and mold, view measured results and prioritized guidance, and find filters, purifiers and other remediation products. The company’s science framework concerns the exposome and respiratory, developmental and broader environmental health; its reports screen home exposures and are not medical diagnoses. Its privacy policy describes AI-powered chat and backend AI service providers, while its published score methodology is percentile-based. Founder and CEO Ben Parens reported an oversubscribed pre-seed financing closed February2,2026, with the amount and buyers undisclosed. Nestwell later acquired Dwelling Health, a Healthworx Studio venture, and appointed Shiv Gaglani as a strategic advisor. Healthworx Studio lists Nestwell among companies that acquired studio-created assets. Treehub by AI Health Fund separately names Nestwell as a first-check investment; exact allocation and funding-round assignment are unpublished.





