WILLIAM JOHN O'BRIEN
ABN details
| ABN | 14 186 020 811 |
|---|---|
| ABN status | Active from 3 February 2026 |
| Entity name | WILLIAM JOHN O'BRIEN |
| Entity type | Individual/Sole Trader |
| GST | Not registered |
| Deductible gift recipient | No |
| Main business location | South Australia 5084 · Other businesses in 5084 |
| Suburbs in postcode | Blair Athol, Blair Athol West, Kilburn, Kilburn North |
| Local government area | Port Adelaide Enfield |
Source: ABR ABN Bulk Extract, 4 November 2026. Verify on ABN Lookup.
Registered business names (ASIC)
| Business name | Status · registered · state |
|---|---|
| Gossamer Cycles | Registered · from 22 March 2016 |
Source: ASIC Business Names Dataset (data.gov.au), CC BY 3.0 AU.
Business & trading names
- Gossamer Cycles
Names recorded against this ABN in the ABR extract.
Summary
WILLIAM JOHN O'BRIEN is an Individual/Sole Trader with ABN 14 186 020 811, located in South Australia 5084. The ABN is active since 3 February 2026.
It is not currently registered for GST. It trades under another name: “Gossamer Cycles”.
It holds one registered business name with ASIC, including “Gossamer Cycles”.
Postcode 5084 covers Blair Athol, Blair Athol West, Kilburn, Kilburn North in the Port Adelaide Enfield local government area.
Frequently asked questions
What is the ABN of WILLIAM JOHN O'BRIEN?
The ABN of WILLIAM JOHN O'BRIEN is 14 186 020 811.
Is the ABN of WILLIAM JOHN O'BRIEN active?
Yes. ABN 14 186 020 811 is active since 3 February 2026.
Is WILLIAM JOHN O'BRIEN registered for GST?
No, it is not currently registered for GST, so its invoices should not charge GST.
What business names does WILLIAM JOHN O'BRIEN use?
Registered business names: Gossamer Cycles.
Where is WILLIAM JOHN O'BRIEN located?
Its main business location is in South Australia, postcode 5084.