51 newly registered businesses tracked in Winnetka, California. Browse by category or see the latest filings below.
Winnetka, CA has 51 newly registered businesses in our database. We refresh this page daily as new Winnetka companies appear in the California Division of Corporations records.
The most active industries in Winnetka are Consulting (2), Holding Company (2), and patisserie (1). Use the category list below to narrow the results to a single industry, or scroll down for the most recent filings of any type.
Every entry shows the business name, filing date, and category, plus verified owner and contact information where we have it. The latest Winnetka filing was on May 8, 2026. You can jump back to the full California view any time to compare Winnetka against other markets.
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