Spending power
TheGrid Corporate Spending Power index would rate purchasing capacity from registry, scale and activity signals.
Spending power
Brand profile · Security and Investigations
BlackCastle runs a Security and Investigations operation from Melbourne. The record marks it privately held. It holds one address on record, all in Australia. It employs 1 person, on the record. It lists penetration testing among its specialties. It is listed alongside one similar brand, in IT Services & Consulting.
Blackcastle is an Australia-based offensive security and vulnerability research practice.
We help organisations understand and mitigate real-world threats through deep technical research, adversarial testing, and tailored security enablement.
Our expertise spans:
- Vulnerability Research & Exploit Analysis: discovering, dissecting, and responsibly reporting flaws before they’re weaponised.
- Penetration Testing & Purple Teaming: realistic attack simulations and collaborative defence exercises.
- Enablement & Advisory Services: training, talent development, and strategic guidance to strengthen internal capability.
At our core, we believe that security starts with understanding how things break and how to make them stronger.
| Countries | 1 |
|---|---|
| Primary country | AU |
All codes: AU
TheGrid Corporate Spending Power index would rate purchasing capacity from registry, scale and activity signals.
Spending power
Hiring, headcount and registry-change signals, streamed to members.
Registry-filed capital and financial indicators, standardised by TheGrid.
1 employee profiles on record · names withheld.
Names and titles are intentionally absent from this page. The source relation carries no consent record across the privacy regimes this directory spans, so it is never requested and never stored. Search engines see exactly what you see here.
The people relation is never requested, so there is nothing here to unlock.
1 counted staff profiles at January 2026. The brand's self-reported band sits above that count and is not published as a headcount.
One address on record, Australia only. Primary: Melbourne.
None linked to this brand.
Seven tags on the brand's own list, among them penetration testing.
1 profile lists BlackCastle as a peer — 62nd percentile in Security and Investigations. It lists two peers of its own. SecurITon Technologies lists it back.