William Mattessich
Claim this profileUS Attorney'S Office - District Of Minnesota
William Mattessich is a lawyer licensed in New York under New York State Unified Court System registration number 5532551. According to New York State Unified Court System records, the license status of William Mattessich is Active, with admission in 2017. William Mattessich has an address of record in Minneapolis, MN, with US Attorney'S Office - District Of Minnesota. This page is a directory listing by ALCBar Lawyer Directory; it is not an endorsement or a referral.
License
- License jurisdiction
- New York
- Licensing authority
- New York State Unified Court System
- Registration number
- 5532551
- License status
- Active, according to New York State Unified Court System records (official registration data). Look up registration number 5532551 in the New York State Unified Court System attorney search
- Admitted
- 2017
- Status last verified
- Not yet verified by ALCBar. The status was taken from the NYS Unified Court System's official attorney registration data on data.ny.gov (dataset last updated October 10, 2026) and has not been re-checked against that dataset since.
Firm and location
- Firm or employer
- US Attorney'S Office - District Of Minnesota
- Address of record
- 300 S 4th St Ste 600
- City
- Minneapolis
- County
- Not stated in the source
- Office state or country
- MN (outside the license state of New York)
- ZIP code
- 55415-2200
Contact details
- Phone
- (651) 848-1926
- Fax
- Not stated in the source
- Not stated in the source
- Website
- Not stated in the source
Practice areas
No practice areas are listed for William Mattessich. This means the information is not available, not that William Mattessich does not practice in any area.
Documented matter experience
ALCBar has no reviewed matter records for William Mattessich. This means the information is not available, not that William Mattessich lacks experience.
Sources and verification
| Information | Source | Status |
|---|---|---|
| Name, bar number, license status, admission date | New York State Unified Court System attorney registration data | Copy of the public record; not re-checked by ALCBar since it was copied |
| Firm, address, phone, fax, email, website | Directory copy of New York State Unified Court System records | Not confirmed by William Mattessich; email delivery not tested |
| Practice areas | Directory source file (origin not confirmed) | Not confirmed |
| Information confirmed by the attorney | Profile claim | None. This profile has not been claimed. |
| Independently reviewed information | ALCBar review | None |
Directory listing last updated 2026-10-12. If anything here differs from the New York State Unified Court System record, the New York State Unified Court System record is the authority.
This listing comes from public licensing records. It is not an endorsement, a referral, or a statement about the skills of William Mattessich. ALCBar does not receive payment for this listing.