Every new Colorado business filing, every dayNew Businesses Filed in Castle Rock, CO
3,006 newly registered businesses tracked in Castle Rock, Colorado. Browse by category or see the latest filings below.
Updated November 11, 2026 · Most recent business filing Nov 8, 2026
Every new Colorado filing, every day
See how it worksAbout New Castle Rock Businesses
Castle Rock, CO has 3,006 newly registered businesses in our database. 179 of those landed in the past 30 days. We refresh this page daily as new Castle Rock companies appear in the Colorado Division of Corporations records.
The most active industries in Castle Rock are Real Estate (44), Consulting (38), and Holding Company (24). Use the category list below to narrow the results to a single industry, or scroll down for the most recent records 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 Castle Rock business filing was recorded on Nov 8, 2026. You can jump back to the full Colorado view any time to compare Castle Rock against other markets.
Castle Rock New Business Data
In October 2026, DayOneLead tracked 189 new business filings in Castle Rock, down 7% from September 2026 and up 13% against the prior six-month average of 168.
That is 1.4% of the 13,749 business filings tracked statewide in Colorado that month.
The U.S. Census Bureau counted 14,437 new business applications in Colorado in September 2026, 3,687 of them high-propensity (likely to become employers).
New business filings tracked per month
| Month | business filings |
|---|---|
| November 2025 | 153 |
| December 2025 | 178 |
| January 2026 | 260 |
| February 2026 | 193 |
| March 2026 | 147 |
| April 2026 | 125 |
| May 2026 | 70 |
| June 2026 | 223 |
| July 2026 | 190 |
| August 2026 | 196 |
| September 2026 | 203 |
| October 2026 | 189 |
| November 2026 (month to date) | 49 |
Counts of business filings DayOneLead collected from the Colorado Division of Corporations, starting November 2025 when our feed became complete. The lighter bar is the current month to date.
Census business applications in Colorado
| Month | Census applications | High-propensity | Statewide tracked |
|---|---|---|---|
| Sep 2026 | 14,437 | 3,687 | 12,876 |
| Aug 2026 | 14,022 | 3,131 | 13,086 |
| Jul 2026 | 18,535 | 3,958 | 13,133 |
| Jun 2026 | 14,841 | 3,213 | 16,842 |
| May 2026 | 14,173 | 3,149 | 5,421 |
| Apr 2026 | 19,148 | 4,457 | 8,828 |
Census Business Formation Statistics count applications for an employer identification number, not seasonally adjusted. They run ahead of state registrations and include sole proprietors that never file with the state, so the two series measure different steps of starting a business.
Websites and domain age
Based on 1,911 business filings from Oct 2025 to Aug 2026, with domain registration dates from public WHOIS/RDAP records for 725 of them. The latest two months are left out because websites are often found weeks after a filing. A domain much older than the filing usually means an existing operation formalizing, not a brand-new idea.
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Frequently Asked Questions
How many new businesses are registered in Castle Rock, CO?
DayOneLead tracks 3,006 newly registered businesses in Castle Rock, with about 179 added in the last 30 days.
How fresh is the Castle Rock business data?
We refresh this page every day from the Colorado Division of Corporations. The latest Castle Rock business filing we recorded was on Nov 8, 2026.
What are the most common new businesses in Castle Rock?
The most active industries among new Castle Rock registrations are Real Estate, Consulting, and Holding Company. You can filter by any category to narrow the list.
What information is included for each Castle Rock business?
Each entry shows the business name, filing date, and category, plus a verified owner name, phone, email, and website wherever we can confirm them.
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