The company Loop Secure appear to be of substantive size, their...

The company Loop Secure appear to be of substantive size, their linkedin page says they have 65 employees spread across three addresses in Sydney, Melbourne and Brisbane ( https://au.linkedin.com/company/loop-secure ) :
They list their specialities as:
Security Consulting & VAPT, PCI-DSS QSA, Managed Security, Firewall & IPS, Cloud Security, Remote Access & Mobility, Security Monitoring & Incident Response, Web Site Security & DDoS, IT & eGRC, DLP, APT Defence, Web & Email Security, Strong Auth, End Point Security, MSS, OSS, GRC, Governance, Risk and Compliance, SOC, Red Teaming, GDPR, Managed Detection and Response, Hackers, ISO 27001, Phishing, Penetration Testing, Cyber Security, and Cyber Risk Management
On their webpage, they also list more than 20 cyber security partners, which include some familiar names:
https://www.loopsec.com.au/about/cyber-security-partners

Seems like another solid acquisition for Tesserent.

All IMHO, DYOR