OAK SERVICES, INC. is a South Dakota corporation, registered on December 27, 2005. It is based at 333 E. BUTTERFIELD RD., SUITE 820, LOMBARD, IL, 60148. The company has since been marked inactive on the South Dakota register, is registered under company number FB030243 and carries EIN 362819951. Public records for the company include 1 SoS registration and 7 Form 5500 filings. Every fact here is republished from an official public register and traces back to a primary source document.
| Legal entity name | OAK SERVICES, INC. |
|---|---|
| Principal address | 333 E. BUTTERFIELD RD., SUITE 820LOMBARD60148ILUnited States |
| Registration state | South Dakota |
| Status | Inactive |
| Registered | 27 December 2005 (over 20 years ago) |
| Dissolved | 2018-02-02 |
| Entity type | Corporation |
| Standing | not compliant |
| Company number | FB030243 |
| EIN | 362819951 |
| Employees (modeled) | ≈12 employees2014 |
| Registered agent | C T CORPORATION SYSTEM |
| Source registry |
| South Dakota Secretary of State · updated 15 June 2026 |
| Public records | 1 SoS registration |
|---|
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| Est. revenue (modeled) | $3.1M2014 |
|---|
| State | Business name | Filed | Registered agent | Officers | Status | |
|---|---|---|---|---|---|---|
| South DakotaTHIS | OAK SERVICES, INC. | 2005-12-27 | C T CORPORATION SYSTEM | — | Inactive | |
Filing ID FB030243 Jurisdiction Domestic · Corporation Principal address 333 E. BUTTERFIELD RD., SUITE 820, LOMBARD, IL, 60148 Registered agent C T CORPORATION SYSTEM319 S COTEAU ST, PIERRE, SD, 57501-3187 Officers Not reported | ||||||
Companies and people linked to OAK SERVICES, INC. in the state registers through shared officers, a shared registered agent, shared filing contacts or a shared address. Service companies file for many unrelated businesses — a shared agent, address or contact alone does not prove affiliation.
company person group former role
Browse the indexed registries by state, or look up any debtor name free, at UCC lien search.
Employee-benefit plan filings by OAK SERVICES, INC. with the Department of Labor. Employee and revenue figures are modeled estimates derived from retirement-plan participant counts and industry ratios — not official headcount or reported revenue.
| Employees (modeled) | ≈12 · plan year 2014 |
|---|---|
| Est. annual revenue (modeled) | $3.1M |
| Benefit plans | 401(k) plan on file · plan terminated |
| Filing history | 16 plan years filed, 1999–2014 |
| Sponsor EIN | 36-2819951 |
| Plan year | Employees (est.) | Participants | Plan assets | Revenue (est.) | 401(k) | |
|---|---|---|---|---|---|---|
| 2014 | ≈12 | 20 (11 active) | — | $3.1M | 401(k) | |
| 2013 | ≈22 | 20 | $2.6M | $6.6M | 401(k) | |
| 2012 | ≈23 | 21 | $1.9M | $4M | 401(k) | |
| 2011 | ≈18 | 19 (16 active) | $1.5M | $4.1M | 401(k) | |
| 2010 | ≈14 | 25 (13 active) | $1.6M | $3.4M | 401(k) | |
| 2009 | ≈20 | 21 (18 active) | $1.4M | $4.1M | 401(k) | |
| 2008 | ≈16 | 18 (14 active) | $971,510 | $4.1M | 401(k) | |
| 2007 | ≈19 | 21 (17 active) | $1.7M | $4.4M | 401(k) | |
| 2006 | ≈16 | 24 (14 active) | $1.5M | $4M | 401(k) | |
| 2005 | ≈20 | 23 (18 active) | $1.2M | $4.4M | 401(k) | |
Matched Form 5500 filing records:
| Plan | Plan year | Participants | EIN | |
|---|---|---|---|---|
| OAK SERVICES, INC. 401(K) PROFIT SHARING PLAN | — | — | — | |
| OAK SERVICES, INC. 401(K) PROFIT SHARING PLAN | — | — | — | |
| OAK SERVICES, INC. 401(K) PROFIT SHARING PLAN | — | — | — | |
| OAK SERVICES, INC. 401(K) PROFIT SHARING PLAN | — | — | — | |
| OAK SERVICES, INC. 401(K) PROFIT SHARING PLAN | — | — | — | |
| OAK SERVICES, INC. 401(K) PROFIT SHARING PLAN | — | — | — | |
| OAK SERVICES, INC. 401(K) PROFIT SHARING PLAN | — | — | — | |
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Companies adjacent to OAK SERVICES, INC. in the South Dakota Secretary of State register, in alphabetical order.
Netstate aggregates public records from federal, state and municipal sources; records are matched to this company by its registered legal names. Latest source snapshot 2026-06-17. Document getpalm-companies/1326-9444-1246.