New York attorney record · Judicial Dept 1
Frederick Willem Mostert
Columbia alumna, admitted to the New York bar in 1987. Decades of status, address, and registration history on this record come straight from the NY Office of Court Administration.
- 1987
- Admitted
- 39
- Years in bar
- 2127025
- NY reg #
The record in one line
With 39 years on the register since a 1987 admission, Frederick Willem Mostert ranks among the New York bar's most senior active practitioners, longer-tenured than 79% of the currently-active bar.
- 39 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- Top 21%
- by tenure among active NY attorneys
- Law school
- Columbia
Data updated May 2026
What this profile tells you
Bar status & tenure
Registration 2127025 with the New York bar authority has long belonged to Frederick Willem Mostert, a veteran practitioner still in active good standing. Registration is recorded within Judicial Department 1, the appellate division overseeing this attorney's home district.
Practice context & education
Practice address is listed under Bird & Bird, located in London, Ec4a 1jp. 5 other attorneys share this firm affiliation in the registry. Educational background: COLUMBIA.
State context & due diligence
After 39 years on the register, Frederick Willem Mostert still falls within the New York bar's active cohort, a share of the register detailed further below.
Experience vs. the active New York bar
Few active New York attorneys match Frederick Willem Mostert's 39 years since admission in 1987. The histogram plots that tenure against every currently-active attorney in the state.
39 years on the New York bar
Years since admission, all currently-active NY attorneys
39 Top 21% higher than 79% of 284,296 active NY attorneys
Each bar is a band; taller bars hold more active NY attorneys. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source NY Office of Court Administration, Attorney Registration · May 2026
How Frederick compares to fellow Columbia alumni
Among the 2,473 Columbia graduates in the New York register, Frederick Willem Mostert is longer-tenured than 91% - a school-cohort view of experience, alongside the statewide one above.
39 years vs. Columbia alumni
Years since admission - 2,473 NY-registered alumni of this school
39 Top 9% higher than 91% of 2,473 fellow alumni
Each bar is a band; taller bars hold more fellow alumni. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source NY Office of Court Administration, Attorney Registration · May 2026
The 1987 admission class today
Of the 5,948 attorneys admitted to the New York bar in 1987, 71.3% are still "Currently registered" today, above the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 2127025
- Year Admitted
- 1987 (39 yrs · veteran)
- Judicial Department
- 1
- Next Registration
- Jul 2027
Location & Contact
- Company
- Bird & Bird
- City
- London, Ec4a 1jp
- Phone
- -
Education
COLUMBIA
Status Distribution Across the New York Bar
Frederick Willem Mostert's current status, "Currently registered", places this attorney in the 66.2% of the 429,620-attorney New York register currently marked active.
Full statewide breakdown & source note
Source: NY Office of Court Administration, Attorney Registrations. Status counts reflect the latest reporting cycle. Bar status confirms registration only; it does not imply competence, specialty fit, or freedom from complaints.
Other Attorneys at Bird & Bird
Verify This Attorney
Verify on NY Courts Attorney SearchBefore you rely on this record
Frederick Willem Mostert's "Currently registered" listing confirms bar standing only, it is a registration fact to verify, not a verdict on quality or competence.
Frequently Asked Questions
Where is Frederick Mostert licensed?
Frederick Mostert is licensed to practice law in New York.
When was Frederick Willem Mostert admitted to the bar?
Frederick Willem Mostert's admission to the New York bar dates back to 1987.
Where did Frederick Willem Mostert go to law school?
Frederick Willem Mostert attended COLUMBIA.
What company does Frederick Willem Mostert work for?
Frederick Willem Mostert is associated with Bird & Bird in London, Ec4a 1jp.
Is Frederick Willem Mostert in good standing?
Yes, Frederick Willem Mostert holds active bar status ("Currently registered").
Sourced from the NY Office of Court Administration, informational only, not legal advice. Full disclosure.
Read our methodology - how this data is sourced, computed, and verified.