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Sentinel Advisory Group
Nadine T. Castro, Manager
Sentinel Advisory Group is a boutique advisory firm protecting revenue, recovering critical accounts, and designing operating models for mid-market enterprise teams. Based in Casselberry, Florida, the firm offers services including Enterprise Risk & Revenue Protection, Critical Account Recovery, Operating Model Design, and Executive Escalation Leadership.
Filed July 1, 2026 · Casselberry, FL · Orange County
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Florida Division of Corporations (Sunbiz) · Entity L26000333824 · Retrieved June 23, 2026
About Sentinel Advisory Group
SENTINEL ADVISORY GROUP, LLC filed in Florida on July 1, 2026, as a business consulting firm specializing in risk advisory. Manager Nadine T. Castro filed through an individual registered agent named THOMAS, who is not the owner and not a formation service. The company's domain was registered 91 days before filing, on April 1, 2026, through GoDaddy, and its website, built with Wix, confirmed the filing identity. The business has a brick-and-mortar footprint with a modern website. We estimate revenue between $1M and $10M and 1 to 5 employees. No annual report or EIN on file yet.
- Domain registered 91 days before filing, showing advance web planning.
- Filed through an individual registered agent named THOMAS, not the owner or a formation service.
- Website built with Wix and identity confirmed.
- Brick-and-mortar footprint.
- No annual report or EIN on file yet.
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 62 new businesses registered in Casselberry in July 2026, and the only business consulting business registered there that month.
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Filing Details
Entity NameSENTINEL ADVISORY GROUP, LLC
Entity TypeFLAL
Entity NumberL26000333824
Filing DateJuly 1, 2026
Principal AddressLocked
City / State / ZipCasselberry, FL 32707
CountyOrange
TimezoneEastern (ET)
EIN on FileNo
Registered AgentTHOMAS
Agent AddressLocked
Filed ViaIndividual registered agent
WebsiteYes · domain registered 91 days before filing · registrar GoDaddy
Website BuildModern · Wix Website Builder
Annual ReportNot yet filed
Estimated Revenue$1M-$10M (estimate)
Estimated Employees1-5 (estimate)
FootprintBrick and mortar (estimate)
First Recorded by DayOneLeadJune 23, 2026 (-8 days after filing)
Verified Business Profile
SubcategoryRisk Advisory
Contact Information
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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.
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Officers / Authorized Persons
N
Frequently Asked Questions
When was Sentinel Advisory Group registered?
Sentinel Advisory Group was registered as FLAL on July 1, 2026 in Florida.
Where is Sentinel Advisory Group located?
Sentinel Advisory Group is based in Casselberry, FL, 32707, in Orange County.
What type of business is Sentinel Advisory Group?
Sentinel Advisory Group is classified as a business consulting business (risk advisory).
Is Sentinel Advisory Group still active?
According to the Florida Division of Corporations, Sentinel Advisory Group's current record status is "active".
Does Sentinel Advisory Group have an EIN on file?
No EIN was found on file for Sentinel Advisory Group at the time of registration.
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