AMERICAN DIVERSIFIED SERVICES is a California corporation, registered on December 31, 1976. It is based at 499 VIA CASITAS #8, GREENBRAE, CA, 94904, United States. The company is currently listed as suspended on the California register, is registered under company number 0806329 and carries EIN 263885896. Its sole officer on record is WILLIAM D MCGAUGHEY. Its E-Verify enrollment reports a workforce of 5 to 9 employees, hiring at 1 site in California. Public records for the company include 1 SoS registration, 2 federal contracts, 1 E-Verify record and 9 Form 5500 filings. Every fact here is republished from an official public register and traces back to a primary source document.
| Legal entity name | AMERICAN DIVERSIFIED SERVICES |
|---|---|
| Principal address | 499 VIA CASITAS #8GREENBRAE94904CAUnited States |
| Mailing address | P O BOX 30188, CINCINNATI, OH, 45230, US |
| Registration state | California |
| Status | Suspended |
| Registered | 31 December 1976 (over 49 years ago) |
| Officers & directors | WILLIAM D MCGAUGHEY, officerARBOR PROFESSIONAL CENTER, II LLC, officer (former) |
| Dissolved | 1994-06-01 |
| Entity type | Corporation |
|---|
| Standing | not compliant |
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| Company number | 0806329 |
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| EIN | 263885896 |
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| Employees (modeled) | ≈6 employees2018 |
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| Workforce size | 5 to 9 employees · updated 22 June 2011 |
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| Hiring sites | 1 site in California |
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| Registered agent | MARK SCHALLERT |
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| Source registry | California Secretary of State · updated 10 August 2026 |
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| Public records | 1 SoS registration |
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| Est. revenue (modeled) | $1.9M2018 |
|---|---|
| Federal contracts | $2.2M · 25 awards |
| Total obligated | $2.2M |
|---|---|
| Awards | 25 |
| Top agency | Department of Veterans Affairs |
| Action date | Agency | Obligated | |
|---|---|---|---|
| 2016-11-01 | Department of Veterans Affairs | $2K | |
| 2015-10-01 | Department of Veterans Affairs | $68K | |
| 2014-10-01 | Department of Veterans Affairs | $68K | |
| 2014-08-21 | Department of Defense | $0 | |
| 2013-12-13 | Department of Veterans Affairs | $-12191.4 | |
| 2013-10-01 | Department of Veterans Affairs | $68K | |
| 2013-07-25 | Department of Defense | $15K | |
| 2013-04-23 | Department of Veterans Affairs | $0 | |
| 2013-03-05 | Department of Veterans Affairs | $101K | |
| 2012-10-01 | Department of Veterans Affairs | $67K | |
| State | Business name | Filed | Registered agent | Officers | Status | |
|---|---|---|---|---|---|---|
| CaliforniaTHIS | AMERICAN DIVERSIFIED SERVICES | 1976-12-31 | MARK SCHALLERT | WILLIAM D MCGAUGHEYOfficerARBOR PROFESSIONAL CENTER, II LLCOfficer | Suspended | |
Filing ID 0806329 Jurisdiction Domestic · Corporation Principal address 499 VIA CASITAS #8, GREENBRAE, CA, 94904, United States Registered agent MARK SCHALLERTPILLSBURY MADISON & SUTRO, 225 BUSH ST, SAN FRANCISCO, CA, 94104 Officers WILLIAM D MCGAUGHEYOfficer ARBOR PROFESSIONAL CENTER, II LLCOfficer | ||||||
| Indiana | AMERICAN DIVERSIFIED SERVICES, INC. | 1992-12-17 | Erik D. Spykman | William D. McGaugheyOfficer | Merged | |
Companies and people linked to AMERICAN DIVERSIFIED SERVICES 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.
| State | Workforce | Hiring sites | Enrolled | Industry | Status | |
|---|---|---|---|---|---|---|
| California | 5 to 9 | 1 | 10/4/2010 | ADMINISTRATIVE AND SUPPORT AND WASTE MANAGEMENT AND REMEDIATION SERVICES (56) | Open | |
Employee-benefit plan filings by AMERICAN DIVERSIFIED SERVICES 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) | ≈6 · plan year 2018 |
|---|---|
| Est. annual revenue (modeled) | $1.9M |
| Benefit plans | 401(k) plan on file · plan terminated |
| Filing history | 9 plan years filed, 2010–2018 |
| Sponsor EIN | 26-3885896 |
| Plan year | Employees (est.) | Participants | Plan assets | Revenue (est.) | 401(k) | |
|---|---|---|---|---|---|---|
| 2018 | ≈6 | 5 | — | $1.9M | 401(k) | |
| 2017 | ≈7 | 6 | $43,085 | $2.2M | 401(k) | |
| 2016 | ≈3 | 6 (3 active) | $50,092 | $593,060 | 401(k) | |
| 2015 | ≈3 | 7 (3 active) | $45,678 | $856,019 | 401(k) | |
| 2014 | ≈7 | 9 (6 active) | $40,942 | $1.3M | 401(k) | |
| 2013 | ≈13 | 12 | $36,514 | $2.6M | 401(k) | |
| 2012 | ≈16 | 14 | $27,386 | $2.3M | 401(k) | |
| 2011 | ≈10 | 9 | $34,246 | $2.9M | 401(k) | |
| 2010 | — | — | $11,392 | $1.4M | 401(k) | |
Matched Form 5500 filing records:
| Plan | Plan year | Participants | EIN | |
|---|---|---|---|---|
| THE CONTRACTORS RETIREMENT PLAN | — | — | — | |
| THE CONTRACTORS RETIREMENT PLAN | — | — | — | |
| THE CONTRACTORS RETIREMENT PLAN | — | — | — | |
| THE CONTRACTORS RETIREMENT PLAN | — | — | — | |
| THE CONTRACTORS RETIREMENT PLAN | — | — | — | |
| THE CONTRACTORS RETIREMENT PLAN | — | — | — | |
| THE CONTRACTORS RETIREMENT PLAN | — | — | — | |
| THE CONTRACTORS RETIREMENT PLAN | — | — | — | |
| THE CONTRACTORS RETIREMENT PLAN | — | — | — | |
Federal court records load when you reach this section.
Companies adjacent to AMERICAN DIVERSIFIED SERVICES in the California Secretary of State register, in alphabetical order.
1 company is registered at 499 VIA CASITAS #8, GREENBRAE — shared registered-office and agent addresses are common; a shared address alone does not link businesses.
Netstate aggregates public records from federal, state and municipal sources; records are matched to this company by its registered legal names. Latest source snapshot 2026-08-13. Document getpalm-companies/4168-8787-3440.