Worksites
Mastercard Technologies, LLC — H-1B worksites
Every place of employment declared on Mastercard Technologies, LLC'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
- 22
- States
- 8
- Busiest site
- O’Fallon, MO
- Concentration
- 39%
Distinct addresses declared as a place of employment.
Where the declared work happens, which is not where the company is registered.
38 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 |
|---|---|---|---|---|
| Missouri | MO | 4 | 2 | 72 |
| New York | NY | 2 | 2 | 6 |
| California | CA | 2 | 1 | 4 |
| Texas | TX | 4 | 4 | 4 |
| Virginia | VA | 3 | 2 | 4 |
| Georgia | GA | 3 | 3 | 3 |
| Washington | WA | 2 | 2 | 3 |
| New Jersey | NJ | 2 | 2 | 2 |
All 22 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 |
|---|---|---|---|---|
| O’Fallon, MO | 2200 Mastercard Blvd63368 | — | 38 | 38.8% |
| O'Fallon, MO | 2200 Mastercard Blvd63368 | — | 27 | 27.6% |
| New York, NY | 150 5th Avenue10011 | — | 5 | 5.1% |
| O'Fallon, MO | 2200 Mastercard Blvd.63368 | — | 4 | 4.1% |
| San Francisco, CA | 123 Mission Street94105 | SAN FRANCISCO | 3 | 3.1% |
| O’Fallon, MO | 2200 Mastercard Blvd.63368 | ST CHARLES | 3 | 3.1% |
| Arlington, VA | 4250 Fairfax Drive22203 | — | 2 | 2.0% |
| Issaquah, WA | 463 6th Lane NE98029 | — | 2 | 2.0% |
| San Francisco, CA | 123 Mission St.94105 | — | 1 | 1.0% |
| Atlanta, GA | 675 Ponce De Leon Ave NE30308 | FULTON | 1 | 1.0% |
| Cumming, GA | 4735 Randall Walk30040 | — | 1 | 1.0% |
| Shipton, GA | 8830 Shipton Circle30107 | — | 1 | 1.0% |
| East Windsor, NJ | 56 Winchester Drive08520 | — | 1 | 1.0% |
| Somerset, NJ | 6 Continental Road08873 | — | 1 | 1.0% |
| Purchase, NY | 2000 Purchase Street10577 | — | 1 | 1.0% |
| Austin, TX | 13908 Osmarea Drive78717 | — | 1 | 1.0% |
| Katy, TX | 25234 Lexington Manor Court77493 | — | 1 | 1.0% |
| Liberty Hill, TX | 108 Bennington Dr.78642 | — | 1 | 1.0% |
| Ovilla, TX | 340 Cheyenne Mountain Dr.75154 | — | 1 | 1.0% |
| Arlington, VA | 4250 Fairfax Dr.22203 | — | 1 | 1.0% |
| Woodbridge, VA | 13806 Custis Sq22191 | — | 1 | 1.0% |
| Blaine, WA | 8288 Beach Way Drive98230 | — | 1 | 1.0% |
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.