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Oak Brook Advisors
Pamela J. Grzywinski, AR
A financial advisory firm providing investment advice and services in Florida.
Filed January 1, 2026 · Lakewood Ranch, FL · Collier County
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Florida Division of Corporations (Sunbiz) · Entity L26000003034 · Retrieved April 16, 2026
About Oak Brook Advisors
OAK BROOK ADVISORS, LLC filed in Florida on January 1, 2026, as a Financial Advisory firm. The owner, Pamela J. Grzywinski, filed through an individual registered agent who is not the owner. Its domain was registered seven years before filing, on June 1, 2018, via GoDaddy. The website is modern and matches the filing name and address. We first saw it 105 days after filing. No annual report or EIN on file yet.
- Domain registered 2,771 days before filing, suggesting a long-planned or pre-existing business.
- Filed through an individual registered agent, not the owner or a service.
- Website identity confirmed, matching the filing name and address.
- First seen 105 days after filing.
- No annual report or EIN on file yet.
Compiled from the state record, the company's public web presence, and our own research. Updated August 23, 2026.
One of 69 new businesses registered in Lakewood Ranch in January 2026, one of 2 financial services businesses.
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Filing Details
Entity NameOAK BROOK ADVISORS, LLC
Entity TypeFLAL
Entity NumberL26000003034
Filing DateJanuary 1, 2026
Principal AddressLocked
City / State / ZipLakewood Ranch, FL 34202
CountyCollier
TimezoneEastern (ET)
EIN on FileNo
Registered AgentKI
Agent AddressLocked
Filed ViaIndividual registered agent
WebsiteYes · domain registered 2771 days before filing · registrar GoDaddy
Website BuildModern
Annual ReportNot yet filed
First Recorded by DayOneLeadApril 16, 2026 (105 days after filing)
Verified Business Profile
SubcategoryFinancial 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
P
Document Timeline
LC Amendment
Jan 15, 2026Frequently Asked Questions
When was Oak Brook Advisors registered?
Oak Brook Advisors was registered as FLAL on January 1, 2026 in Florida.
Where is Oak Brook Advisors located?
Oak Brook Advisors is based in Lakewood Ranch, FL, 34202, in Collier County.
What type of business is Oak Brook Advisors?
Oak Brook Advisors is classified as a financial services business (financial advisory).
Is Oak Brook Advisors still active?
According to the Florida Division of Corporations, Oak Brook Advisors's current record status is "active".
Does Oak Brook Advisors have an EIN on file?
No EIN was found on file for Oak Brook Advisors at the time of registration.
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