Aecom Technology Corp
ActiveEngineering services · Los Angeles County, CA
At a glance
Public records place Aecom Technology Corp at 2 active locations in 2 Los Angeles office buildings. Locations include 1999 AVENUE OF THE STARS; One California Plaza.
Public record — Los Angeles County
Office locations (2 active)
| Building | Suite / floor | Submarket | Since | Source | Match |
|---|---|---|---|---|---|
| 1999 AVENUE OF THE STARS | — | Los Angeles | Aug 2014 | LA business tax registry | address match · high |
| One California Plaza300 S GRAND AVE | — | Los Angeles | Jan 1986 | LA business tax registry | address match · high |
Where does Aecom Technology Corp operate in Los Angeles?
The earliest active record dates from Jan 1986 and the most recent from Aug 2014.
Across Los Angeles, 55,341 active business locations are matched to office buildings; Aecom Technology Corp accounts for 2 of them.
How does BuildingCensus know Aecom Technology Corp 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: LA business tax 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 Aecom Technology Corp's offices in Los Angeles?
Public records place Aecom Technology Corp at 2 active locations in Los Angeles County: 1999 AVENUE OF THE STARS; One California Plaza.
How long has Aecom Technology Corp been at its Los Angeles locations?
The earliest active record starts Jan 1986; the newest Aug 2014. Start dates are when the record was opened, which can trail the actual move-in.
Related
Data provenance — public records only
- Los Angeles County — County Assessor annual roll (use codes, areas, values; California law redacts owner names from bulk data) and the city Office of Finance active-business registry, whose addresses carry floor and suite numbers.
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 Los Angeles County business records matched to county office parcels.
About this data
Source: County Assessor annual roll (Los Angeles County), as published October 11, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “Aecom Technology Corp — Los Angeles office locations”, https://buildingcensus.com/offices/la/companies/aecom-technology-corp (data as of October 11, 2026).