Operating CompanyPhoenix / Scottsdale

Whistle

Operating Company , AZ

Whistle Labs was a pet-technology company headquartered in San Francisco, California, that produced the Whistle GPS Pet Tracker for dogs and cats. The company was acquired and its pet monitors ceased operation as of August 2025.

Founded

Region

Phoenix / Scottsdale

Investors

Desert Angels

People

About Sun Belt

Arizona's semiconductor industry runs deep — Motorola built chips in the Phoenix area for decades, and Intel and TSMC have both since built major fabs in the same Sonoran Desert corridor. Arizona State, one of the largest universities in the country by enrollment, and the University of Arizona anchor a growth-stage venture scene that's easy to overlook next to the older coastal hubs.

Region Stats

Total firms 174

VC / investors 12

Companies 155

Universities 7

Known For

Semiconductors

Growth

Overlooked Venture