MARK ROSIAK
ABN details
| ABN | 51 785 808 454 |
|---|---|
| ABN status | Active from 22 December 2015 |
| Entity name | MARK ROSIAK |
| Entity type | Individual/Sole Trader |
| GST | Registered from 1 July 2024 |
| Deductible gift recipient | No |
| Main business location | South Australia 5118 · Other businesses in 5118 |
| Suburbs in postcode | Bibaringa, Buchfelde, Concordia, Gawler, Gawler Belt, Gawler East, Gawler River, Gawler South, Gawler West, Hewett, Kalbeeba, Kangaroo Flat and 4 more |
| Local government area | Barossa |
Source: ABR ABN Bulk Extract, 4 November 2026. Verify on ABN Lookup.
Registered business names (ASIC)
| Business name | Status · registered · state |
|---|---|
| Rosiak MR Consulting | Registered · from 9 August 2025 |
| Rosiak Consulting | Registered · from 24 July 2024 |
Source: ASIC Business Names Dataset (data.gov.au), CC BY 3.0 AU.
Business & trading names
- Rosiak Consulting
- Rosiak MR Consulting
Names recorded against this ABN in the ABR extract.
Summary
MARK ROSIAK is an Individual/Sole Trader with ABN 51 785 808 454, located in South Australia 5118. The ABN is active since 22 December 2015.
It is registered for GST from 1 July 2024. It trades under 2 other names, including “Rosiak Consulting”.
It holds 2 registered business names with ASIC, including “Rosiak MR Consulting”.
Postcode 5118 covers Bibaringa, Buchfelde, Concordia, Gawler, Gawler Belt and nearby suburbs in the Barossa local government area.
Frequently asked questions
What is the ABN of MARK ROSIAK?
The ABN of MARK ROSIAK is 51 785 808 454.
Is the ABN of MARK ROSIAK active?
Yes. ABN 51 785 808 454 is active since 22 December 2015.
Is MARK ROSIAK registered for GST?
Yes, registered for GST since 1 July 2024.
What business names does MARK ROSIAK use?
Registered business names: Rosiak MR Consulting; Rosiak Consulting.
Where is MARK ROSIAK located?
Its main business location is in South Australia, postcode 5118.