MARK WILLIAM OBRIEN
ABN details
| ABN | 43 411 323 823 |
|---|---|
| ABN status | Active from 12 November 2021 |
| Entity name | MARK WILLIAM OBRIEN |
| Entity type | Individual/Sole Trader |
| GST | Not registered |
| Deductible gift recipient | No |
| Main business location | Victoria 3350 · Other businesses in 3350 |
| Suburbs in postcode | Alfredton, Bakery Hill, Ballarat, Ballarat Central, Ballarat East, Ballarat North, Ballarat West, Black Hill, Brown Hill, Canadian, Eureka, Golden Point and 11 more |
| Local government area | Ballarat |
Source: ABR ABN Bulk Extract, 4 November 2026. Verify on ABN Lookup.
Registered business names (ASIC)
| Business name | Status · registered · state |
|---|---|
| ADVOCATE SOCIAL WORK | Registered · from 29 June 2024 |
Source: ASIC Business Names Dataset (data.gov.au), CC BY 3.0 AU.
Business & trading names
- ADVOCATE SOCIAL WORK
Names recorded against this ABN in the ABR extract.
Summary
MARK WILLIAM OBRIEN is an Individual/Sole Trader with ABN 43 411 323 823, located in Victoria 3350. The ABN is active since 12 November 2021.
It is not currently registered for GST. It trades under another name: “ADVOCATE SOCIAL WORK”.
It holds one registered business name with ASIC, including “ADVOCATE SOCIAL WORK”.
Postcode 3350 covers Alfredton, Bakery Hill, Ballarat, Ballarat Central, Ballarat East and nearby suburbs in the Ballarat local government area.
Frequently asked questions
What is the ABN of MARK WILLIAM OBRIEN?
The ABN of MARK WILLIAM OBRIEN is 43 411 323 823.
Is the ABN of MARK WILLIAM OBRIEN active?
Yes. ABN 43 411 323 823 is active since 12 November 2021.
Is MARK WILLIAM OBRIEN registered for GST?
No, it is not currently registered for GST, so its invoices should not charge GST.
What business names does MARK WILLIAM OBRIEN use?
Registered business names: ADVOCATE SOCIAL WORK.
Where is MARK WILLIAM OBRIEN located?
Its main business location is in Victoria, postcode 3350.