Impossible
ActiveBusiness · San Francisco, CA
At a glance
Public records place Impossible at 2 active locations in 2 San Francisco office buildings. Locations include 685 MARKET ST (STE 300); 55 NEW MONTGOMERY ST (FL 4).
Public record — San Francisco
Office locations (2 active)
| Building | Suite / floor | Submarket | Since | Source | Match |
|---|---|---|---|---|---|
| 685 MARKET ST | STE 300 | San Francisco | Sep 2025 | SF registered business | address · medium |
| 55 NEW MONTGOMERY ST | FL 4 | San Francisco | Apr 2025 | SF registered business | address · medium |
Where does Impossible operate in San Francisco?
The earliest active record dates from Apr 2025 and the most recent from Sep 2025.
Across San Francisco, 9,124 active business locations are matched to office buildings; Impossible accounts for 2 of them.
How does BuildingCensus know Impossible 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: SF registered business). 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 Impossible's offices in San Francisco?
Public records place Impossible at 2 active locations in San Francisco: 685 MARKET ST (STE 300); 55 NEW MONTGOMERY ST (FL 4).
How long has Impossible been at its San Francisco locations?
The earliest active record starts Apr 2025; the newest Sep 2025. Start dates are when the record was opened, which can trail the actual move-in.
Related
Data provenance — public records only
- San Francisco — Assessor secured roll (use classes, stories, areas, assessed values — California law excludes owner names from open data, and no bulk sale-price source exists), the universal registered-business roll with suite-level addresses, and current energy benchmarking joined by parcel.
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 San Francisco business records matched to county office parcels.
About this data
Source: Assessor secured roll (San Francisco), as published October 11, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “Impossible — San Francisco office locations”, https://buildingcensus.com/offices/sf/companies/impossible (data as of October 11, 2026).