HARRISON SIEJKA
ABN details
| ABN | 32 139 082 720 |
|---|---|
| ABN status | Active from 15 August 2025 |
| Entity name | HARRISON SIEJKA |
| Entity type | Individual/Sole Trader |
| GST | Registered from 15 August 2025 |
| Deductible gift recipient | No |
| Main business location | New South Wales 2289 · Other businesses in 2289 |
| Suburbs in postcode | Adamstown, Adamstown Heights, Garden Suburb, Highfields, Kotara, Kotara Fair, Kotara South |
| Local government area | Lake Macquarie |
Source: ABR ABN Bulk Extract, 4 November 2026. Verify on ABN Lookup.
Registered business names (ASIC)
| Business name | Status · registered · state |
|---|---|
| Harry Siejka Concreting | Registered · from 31 August 2025 |
| SIEJKA CONSTRUCTIONS | Registered · from 21 August 2025 |
Source: ASIC Business Names Dataset (data.gov.au), CC BY 3.0 AU.
Business & trading names
- Harry Siejka Concreting
- SIEJKA CONSTRUCTIONS
Names recorded against this ABN in the ABR extract.
Summary
HARRISON SIEJKA is an Individual/Sole Trader with ABN 32 139 082 720, located in New South Wales 2289. The ABN is active since 15 August 2025.
It is registered for GST from 15 August 2025. It trades under 2 other names, including “Harry Siejka Concreting”.
It holds 2 registered business names with ASIC, including “Harry Siejka Concreting”.
Postcode 2289 covers Adamstown, Adamstown Heights, Garden Suburb, Highfields, Kotara and nearby suburbs in the Lake Macquarie local government area.
Frequently asked questions
What is the ABN of HARRISON SIEJKA?
The ABN of HARRISON SIEJKA is 32 139 082 720.
Is the ABN of HARRISON SIEJKA active?
Yes. ABN 32 139 082 720 is active since 15 August 2025.
Is HARRISON SIEJKA registered for GST?
Yes, registered for GST since 15 August 2025.
What business names does HARRISON SIEJKA use?
Registered business names: Harry Siejka Concreting; SIEJKA CONSTRUCTIONS.
Where is HARRISON SIEJKA located?
Its main business location is in New South Wales, postcode 2289.