Every new California business filing, every dayCastle Core EI
Castle Core EI LLC provides emotional intelligence coaching to emerging leaders, focusing on building confidence, resilience, and authentic leadership through research-backed assessments and personas. The matching website prominently features this service, confirming the business activity.
Filed March 13, 2026 · San Francisco, CA · San Francisco County
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California Secretary of State (bizfile Online) · Entity B20260125638 · Retrieved May 14, 2026
About Castle Core EI
Castle Core EI LLC filed in California on March 13, 2026, as an emotional intelligence coaching business based in San Francisco. It was filed through a registered agent service, Entity Protect Registered Agent Services Corp., and shares that agent with 664 other entities. The company shares its address with 51 other businesses. Its domain was registered on April 14, 2026, 32 days before the filing date, using Squarespace Domains. The website is modern and online-only. We estimate annual revenue under $100,000 and 1-5 employees. No annual report or EIN on file yet.
- Filed through a registered agent service (Entity Protect Registered Agent Services Corp.)
- Shares its registered agent with 664 other entities
- Shares its address with 51 other businesses
- Domain registered 32 days before the filing date
- Online-only footprint with a modern website
- We estimate revenue under $100,000 and 1-5 employees
Compiled from the state record, the company's public web presence, and our own research; revenue, employee, and footprint figures are estimates, not verified financials. Updated August 23, 2026.
One of 421 new businesses registered in San Francisco in March 2026, and the only coaching business registered there that month.
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Filing Details
Verified Business Profile
Contact Information
Verified Website Profile
We matched this business to its website and pulled the domain's registration (WHOIS) record. Domain age is one of the strongest signals that a filing is a truly new business and not a re-filing or paperwork change.
Frequently Asked Questions
When was Castle Core EI registered?
Castle Core EI was registered as LLC on March 13, 2026 in California.
Where is Castle Core EI located?
Castle Core EI is based in San Francisco, CA, 94108, in San Francisco County.
What type of business is Castle Core EI?
Castle Core EI is classified as a coaching business (emotional intelligence coaching).
Does Castle Core EI have an EIN on file?
No EIN was found on file for Castle Core EI at the time of registration.
Who Sells to This Business
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