Worksites
The Northern Trust Company — H-1B worksites
Every place of employment declared on The Northern Trust Company's certified labor condition applications. A worksite is where the sponsored work is performed, which is not necessarily the company address — and the count beside each is filings naming that site, not people working at it.
- Worksites
- 19
- States
- 5
- Busiest site
- Chicago, IL
- Concentration
- 24%
Distinct addresses declared as a place of employment.
Where the declared work happens, which is not where the company is registered.
6 filings name this site.
Share of worksite filings at that single busiest site. A high number means relocation, not remote work, is the default assumption.
By state
Worksites rolled up to the state on the filing. Each state links to every H-1B sponsor with work there, not only this one.
| State | Code | Worksites | Cities | Filings |
|---|---|---|---|---|
| Illinois | IL | 13 | 6 | 19 |
| Arizona | AZ | 2 | 2 | 2 |
| Texas | TX | 2 | 2 | 2 |
| Michigan | MI | 1 | 1 | 1 |
| Pennsylvania | PA | 1 | 1 | 1 |
All 19 worksites
Ranked by how many filings name the site. Addresses are reproduced exactly as written on the application — nothing is geocoded, deduplicated by fuzzy match, or corrected.
| City and state | Worksite address as filed | County | Filings | Share |
|---|---|---|---|---|
| Chicago, IL | 333 S. Wabash Ave.60604 | — | 6 | 24.0% |
| Aurora, IL | 1163 Shoreline Drive60504 | — | 2 | 8.0% |
| Gilbert, AZ | 64 N Abalone Ct.85233 | — | 1 | 4.0% |
| Tempe, AZ | 2190 E. Elliot Road85284 | — | 1 | 4.0% |
| Aurora, IL | 3691 Baybrook Dr.60504 | — | 1 | 4.0% |
| Chicago, IL | 181 W. Madison Street60602 | — | 1 | 4.0% |
| Chicago, IL | 181 W. Madison St.60602 | — | 1 | 4.0% |
| Chicago, IL | 50 S. LaSalle St.60603 | — | 1 | 4.0% |
| Chicago, IL | 333 S. Wabash Ave60604 | — | 1 | 4.0% |
| Naperville, IL | 2989 Madison Drive60564 | — | 1 | 4.0% |
| Naperville, IL | 1415 W. Diehl Road60563 | — | 1 | 4.0% |
| Naperville, IL | 3004 Serenity Lane60564 | — | 1 | 4.0% |
| Oswego, IL | 366 Danforth Drive60543 | — | 1 | 4.0% |
| Plainfield, IL | 12743 S Vicarage Drive60585 | — | 1 | 4.0% |
| Vernon Hills, IL | 1100 Warren Lane60061 | — | 1 | 4.0% |
| Novi, MI | 30424 Norwich Drive48377 | — | 1 | 4.0% |
| Downingtown, PA | 1868 Boulder Drive19335 | — | 1 | 4.0% |
| Plano, TX | 7001 Parkwood Blvd.75024 | — | 1 | 4.0% |
| Prosper, TX | 970 Corinthian Road75078 | — | 1 | 4.0% |
Two addresses appear in this dataset and they answer different questions. The employer address on the company page identifies the legal entity — with the phone number and NAICS code, it is how you tell two companies with the same name apart. A worksite is where the work is performed, and for an employer that places workers at client sites the two are rarely the same place. How these pages are built.