STUART GREGORY SINFIELD
ABN details
| ABN | 51 135 398 304 |
|---|---|
| ABN status | Active from 1 July 2003 |
| Entity name | STUART GREGORY SINFIELD |
| Entity type | Individual/Sole Trader |
| GST | Registered from 4 June 2010 |
| Deductible gift recipient | No |
| Main business location | New South Wales 2106 · Other businesses in 2106 |
| Suburbs in postcode | Newport, Newport Beach |
| Local government area | Northern Beaches |
Source: ABR ABN Bulk Extract, 4 November 2026. Verify on ABN Lookup.
Registered business names (ASIC)
| Business name | Status · registered · state |
|---|---|
| PROTOCOL PLUMBING | Registered · from 16 February 2007 · NSW |
Source: ASIC Business Names Dataset (data.gov.au), CC BY 3.0 AU.
Business & trading names
- PROTOCOL PLUMBING
Names recorded against this ABN in the ABR extract.
Summary
STUART GREGORY SINFIELD is an Individual/Sole Trader with ABN 51 135 398 304, located in New South Wales 2106. The ABN is active since 1 July 2003.
It is registered for GST from 4 June 2010. It trades under another name: “PROTOCOL PLUMBING”.
It holds one registered business name with ASIC, including “PROTOCOL PLUMBING”.
Postcode 2106 covers Newport, Newport Beach in the Northern Beaches local government area.
Frequently asked questions
What is the ABN of STUART GREGORY SINFIELD?
The ABN of STUART GREGORY SINFIELD is 51 135 398 304.
Is the ABN of STUART GREGORY SINFIELD active?
Yes. ABN 51 135 398 304 is active since 1 July 2003.
Is STUART GREGORY SINFIELD registered for GST?
Yes, registered for GST since 4 June 2010.
What business names does STUART GREGORY SINFIELD use?
Registered business names: PROTOCOL PLUMBING.
Where is STUART GREGORY SINFIELD located?
Its main business location is in New South Wales, postcode 2106.