71 newly registered businesses tracked in Castro Valley, California. Browse by category or see the latest filings below.
Castro Valley, CA has 71 newly registered businesses in our database. 1 of those landed in the past 30 days. We refresh this page daily as new Castro Valley companies appear in the California Division of Corporations records.
The most active industries in Castro Valley are Consulting (6), Real Estate Investment (4), and Technology (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 Castro Valley filing was on May 8, 2026. You can jump back to the full California view any time to compare Castro Valley against other markets.
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