New York attorney record
Brian Byungsoo Koo
Brian Byungsoo Koo is an attorney registered with the NYS Office of Court Administration (OCA) Attorney Registration Unit under bar number 4378865, admitted in 2006. The current public license status is "Suspended, delinquent" as of 2026-06-13.
Current license status of record is suspended.
The licensing authority's public record currently lists this attorney as suspended. Review the disciplinary record below and confirm with the official source before relying on this listing.
A summary of the public record — not a rating of skill, not a recommendation, not legal advice.
Experience vs. active New York attorneys
State median: 20 yrs
20 yrs admitted — more experience than ~50% of active New York attorneys.
Years since admission, active New York attorneys with a published admission year (n = 333,133). This attorney's band is highlighted.
License & registration
| Full name | Brian Byungsoo Koo |
|---|---|
| Bar / registration number | 4378865 |
| License status | Suspended official status of record: “Suspended, delinquent” |
| Admission year | 2006 |
| Law school | NORTHWESTERN UNIVERSITY |
| Business location | Washington, DC |
| Firm | U.s. International Trade Commission |
| Discipline standing | Current status reflects a suspended record with the licensing authority. Itemized disciplinary orders are not yet integrated for New York; see the official source for the full record. |
Federal court activity
Federal court activity has not been compiled for this attorney yet.
Source & last updated
Source: NYS Office of Court Administration (OCA) Attorney Registration Unit — official attorney record. As of 2026-06-13 (last roster ingest).
Frequently asked questions
Is Brian Byungsoo Koo a licensed attorney in New York?
Brian Byungsoo Koo is registered with the NYS Office of Court Administration (OCA) Attorney Registration Unit under bar number 4378865. The current public license status of record is "Suspended, delinquent" as of 2026-06-13.
Has Brian Byungsoo Koo been disbarred or suspended?
Brian Byungsoo Koo's current license status of record is suspended per the NYS Office of Court Administration (OCA) Attorney Registration Unit.
What is Brian Byungsoo Koo's bar number?
Brian Byungsoo Koo's New York bar/registration number is 4378865, assigned by the NYS Office of Court Administration (OCA) Attorney Registration Unit. A bar number is the most reliable way to confirm you have the right attorney, especially for common names.
When was Brian Byungsoo Koo admitted to practice law?
Brian Byungsoo Koo was admitted in 2006 — about 20 years since admission per the NYS Office of Court Administration (OCA) Attorney Registration Unit. Law school of record: NORTHWESTERN UNIVERSITY.
Where is Brian Byungsoo Koo's law office?
The NYS Office of Court Administration (OCA) Attorney Registration Unit record lists a business location of Washington, DC and the firm U.s. International Trade Commission for Brian Byungsoo Koo. Phone and email are not published in the public roster.
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