Business location
Defining Sound
This listing describes a business location. Location dates are not company formation dates.
Record reference date: October 18, 2026. Details may be incomplete or outdated.
- Record type
- Business location
- Record identifier
- 0393050-01-001-0393050
- Status
- No End Date Reported
- City
- San Francisco
- State or territory
- California
- Address
- 40 Sylvan Dr
- Postal code
- 94132
- Location start
- November 1, 2005
- Location identifier
- 0393050-01-001-0393050
- Ownership name (as reported)
- Ng Hing C
- DBA name
- Defining Sound
Names and reported roles
Roles are shown as reported. Agents, officers and principals are not automatically owners.
Business names
- DBA name
- Defining Sound
Ownership names (as reported)
- Ownership name (as reported)
- Ng Hing C
Download business record (JSON)
Directory details
Identifiers
- Business Account
- 0393050
- Location
- 0393050-01-001
Names
- Ownership As Reported
- Ng Hing C
- Dba
- Defining Sound
Addresses
- Business · Text
- 40 Sylvan Dr
- Business · City
- San Francisco
- Business · Region
- CA
- Business · Postal Code
- 94132
- Mailing · Street 1
- 40 Sylvan Dr
- Mailing · City
- San Francisco
- Mailing · Region
- CA
- Mailing · Postal Code
- 94132
Dates
- Business Start
- 2005-11-01
- Location Start
- 2005-11-01
Industry
- Naics Code
- 516210
Taxes
- Parking Tax Reported
- No
- Transient Occupancy Tax Reported
- No
Geography
- Reported Point
- {"longitude":-122.485221,"latitude":37.733427}
- Supervisor District
- 4
- Neighborhood
- Sunset/Parkside
All reported fields
Other reported details
- Uniqueid
- 0393050-01-001-0393050
- Certificate number
- 0393050
- Ttxid
- 0393050-01-001
- Dba start date
- 11/01/2005
- Parking tax
- false
- Transient occupancy tax
- false
- Supervisor district
- 4
- Neighborhoods analysis boundaries
- Sunset/Parkside
- Data as of
- 2026/10/18 12:00:00 AM
- Data loaded at
- 2026/10/18 04:12:51 AM
- Current Supervisor Districts
- 8
- Analysis Neighborhoods
- 35
- Neighborhoods
- 62
- SF Find Neighborhoods
- 62
- Current Police Districts
- 10
Names and reported roles
- Ownership name (as reported)
- Ng Hing C
- Dba name
- Defining Sound
Addresses and locations
- Full business address
- 40 Sylvan Dr
- City
- San Francisco
- State
- CA
- Business zip
- 94132
- Location start date
- 11/01/2005
- Location
- POINT (-122.485221 37.733427)
Mailing information
- Mailing address 1
- 40 Sylvan Dr
- Mail city
- San Francisco
- Mail state
- CA
- Mail zipcode
- 94132
Industry and classification
- Self reported naics code
- 516210