New Businesses Filed in Walnut, CA

Walnut, CA has 134 newly registered businesses in our database. 21 of those landed in the past 30 days. We refresh this page daily as new Walnut companies appear in the California Division of Corporations records.

The most active industries in Walnut are Holding Company (6), Transportation & Logistics (5), and E-commerce (3). 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 Walnut filing was on Jul 9, 2026. You can jump back to the full California view any time to compare Walnut against other markets.