BLACKBURN ARCHITECTS, INC. is a California corporation, registered on September 16, 2002. It is based at 1300 19TH STREET NW, SUITE 702, WASHINGTON, DC, 20036, United States. The company is currently listed as active on the California register, is registered under company number 2467127 and carries EIN 351511886. Its sole officer on record is John ANTHONY Blackburn. Public records for the company include 1 SoS registration and 3 Form 5500 filings. Every fact here is republished from an official public register and traces back to a primary source document.
| Legal entity name | BLACKBURN ARCHITECTS, INC. |
|---|---|
| Principal address | 1300 19TH STREET NW, SUITE 702WASHINGTON20036DCUnited States |
| Mailing address | 4960 FAIRMONT AVE, #1204, BETHESDA, MD, 20814, US |
| Registration state | California |
| Status | Active |
| Formed in | District of Columbia (foreign registration) |
| Registered | 16 September 2002 (almost 24 years ago) |
| Officers & directors | John ANTHONY Blackburn, officerSiwei Zhou, MD Corporation, officer (former) |
| Entity type |
| Corporation |
| Standing | compliant |
|---|
| Company number | 2467127 |
|---|
| EIN | 351511886 |
|---|
| Employees (modeled) | ≈22 employees2011 |
|---|
| Licenses on file | 1 |
|---|
| Registered agent | JENNIFER W SUZUKI |
|---|
| 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) | $2.3M2011 |
|---|
| State | Business name | Filed | Registered agent | Officers | Status | |
|---|---|---|---|---|---|---|
| CaliforniaTHIS | BLACKBURN ARCHITECTS, INC. | 2002-09-16 | JENNIFER W SUZUKI | John ANTHONY BlackburnOfficerSiwei Zhou, MD CorporationOfficer | Active | |
Filing ID 2467127 Jurisdiction Foreign · CorporationFormed in District of Columbia Principal address 1300 19TH STREET NW, SUITE 702, WASHINGTON, DC, 20036, United States Registered agent JENNIFER W SUZUKI465 CALIFORNIA STREET, SUITE 500, SAN FRANCISCO, CA, 94104 Officers John ANTHONY BlackburnOfficer Siwei Zhou, MD CorporationOfficer | ||||||
Companies and people linked to BLACKBURN ARCHITECTS, 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 BLACKBURN ARCHITECTS, 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) | ≈22 · plan year 2011 |
|---|---|
| Est. annual revenue (modeled) | $2.3M |
| Retirement plan assets | $456,739 |
| Benefit plans | 401(k) plan on file |
| Filing history | 13 plan years filed, 1999–2011 |
| Sponsor EIN | 35-1511886 |
| Plan year | Employees (est.) | Participants | Plan assets | Revenue (est.) | 401(k) | |
|---|---|---|---|---|---|---|
| 2011 | ≈22 | 20 | $456,739 | $2.3M | 401(k) | |
| 2010 | ≈20 | 18 | $436,926 | $2.2M | 401(k) | |
| 2009 | ≈24 | 22 | $405,574 | $2.6M | 401(k) | |
| 2008 | ≈11 | 24 (10 active) | $379,484 | $1.9M | 401(k) | |
| 2007 | ≈9 | 23 (8 active) | $520,577 | $2M | 401(k) | |
| 2006 | ≈17 | 24 (15 active) | $427,440 | $2.5M | 401(k) | |
| 2005 | ≈17 | 26 (15 active) | $380,287 | $2.5M | 401(k) | |
| 2004 | ≈19 | 27 (17 active) | $357,372 | $2.5M | 401(k) | |
| 2003 | ≈23 | 28 (21 active) | $303,067 | $3.3M | 401(k) | |
| 2002 | ≈28 | 27 (25 active) | $214,077 | $3.2M | 401(k) | |
Matched Form 5500 filing records:
| Plan | Plan year | Participants | EIN | |
|---|---|---|---|---|
| BLACKBURN ARCHITECTS INC. 401K RETIREMENT SAVINGS PLAN | — | — | — | |
| BLACKBURN ARCHITECTS INC. 401K RETIREMENT SAVINGS PLAN | — | — | — | |
| BLACKBURN ARCHITECTS INC. 401K RETIREMENT SAVINGS PLAN | — | — | — | |
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Companies adjacent to BLACKBURN ARCHITECTS, INC. in the California Secretary of State register, in alphabetical order.
3 companies are registered at 1300 19TH STREET NW, SUITE 702, WASHINGTON — 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 2026-08-12. Document getpalm-companies/2210-3722-7819.