18 MOUNTAINSIDE, LLC
ActiveRegistered entity · Miami-Dade County, FL
At a glance
Public records place 18 MOUNTAINSIDE, LLC at 1 active location in 1 Miami office building in Aventura. Locations include 17701 BISCAYNE BLVD (STE 300). It is registered with the Florida Division of Corporations as document L17000079591, filed Apr 2017.
Public record — Miami-Dade County
Office locations (1 active)
| Building | Suite / floor | Submarket | Since | Source | Match |
|---|---|---|---|---|---|
| 17701 BISCAYNE BLVD | STE 300 | Sunny Isles / Aventura | Apr 2017 | FL corporate registry | address match · high |
Florida Division of Corporations
Corporate registration
| Field | Value |
|---|---|
| Document number | L17000079591 |
| Status | Active |
| Entity type | FLAL |
| Filed | Apr 2017 |
| Registered agent | CT Corporation System |
| Principal address | 17701 BISCAYNE BLVD. STE 300, AVENTURA, 33160 |
Where does 18 MOUNTAINSIDE, LLC operate in Miami?
The earliest active record dates from Apr 2017.
Across Miami, 125,446 active business locations are matched to office buildings; 18 MOUNTAINSIDE, LLC accounts for 1 of them.
How does BuildingCensus know 18 MOUNTAINSIDE, LLC is at these addresses?
Each location is a business record whose premises address was matched to a county office parcel (record types on this page: FL corporate registry). The match method and confidence are shown on every row.
A record at an address is evidence that the business operates there, not a lease: records lag moves by months, and businesses without a local record at an address do not appear.
Frequently asked questions
Where are 18 MOUNTAINSIDE, LLC's offices in Miami?
Public records place 18 MOUNTAINSIDE, LLC at 1 active location in Miami-Dade County: 17701 BISCAYNE BLVD (STE 300).
Is 18 MOUNTAINSIDE, LLC registered in Florida?
Yes — Florida Division of Corporations document L17000079591, filed Apr 2017, registered agent CT Corporation System. Principal address on file: 17701 BISCAYNE BLVD. STE 300, AVENTURA.
How long has 18 MOUNTAINSIDE, LLC been at its Miami locations?
The earliest active record starts Apr 2017. Start dates are when the record was opened, which can trail the actual move-in.
Related
Data provenance — public records only
- Miami-Dade County Local Business Tax roll — Business-tax receipts: business name, premises address (incl. suite/floor), account status and start date, via the county's public GIS services.
- Florida Division of Corporations (Sunbiz) — corporate data file — Registered entities: document number, status, filing date, registered agent and principal address, from the state's public quarterly data file.
- Miami-Dade County Property Appraiser — assessment roll — Parcel identity, site address, recorded owner, use code, areas, year built and assessed values, via the county's public GIS services (MD_LandInformation, PaGis layer).
Every fact on this page is drawn from the government records above — no listing sites, no scraped platforms, no third-party images. Facts from public records are uncopyrightable; each tenancy row carries its source and match confidence. Records can lag reality — a business-tax receipt or registration at an address is evidence of occupancy, not a lease confirmation.
Dataset updated . Locations from Miami-Dade County business records matched to county office parcels.
About this data
Source: Miami-Dade County Property Appraiser — assessment roll, as published September 21, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “18 MOUNTAINSIDE, LLC — Miami office locations”, https://buildingcensus.com/offices/miami/companies/18-mountainside-llc (data as of September 21, 2026).