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| Company Name: | OPEN SYSTEMS (OST DE LLC) |
| Employer identification number (EIN): | 455105718 |
| NAIC Classification: | 541519 |
| NAIC Description: | Other Computer Related Services |
The following addresses have been detected on the 401k submissions:
| USA Mailing Address | |||||
|---|---|---|---|---|---|
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| Date first seen: 2007-01-01 | |||||
| Date last seen: 2025-10-02 | |||||
| USA Location Address | |||||
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| Date first seen: 2007-01-01 | |||||
| Date last seen: 2025-06-30 | |||||
| USA Mailing Address | ||||||
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| Date first seen: 2007-01-01 | ||||||
| Date last seen: 2025-12-02 | ||||||
| Plan id# | Plan Name | Plan Start Date | Plan Effective Date |
|---|---|---|---|
| 501 | OPEN SYSTEMS (OST DE LLC) HEALTH & WELFARE PLAN | 2015-12-01 | 2013-12-01 |
| 001 | OPEN SYSTEMS TECHNOLOGIES DE, LLC | 2012-01-01 | 2003-01-01 |
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