Twenty-five years.
One small team.
The same standards.
OSH.co.za is the cloud and security practice Paul and Cathleen Ogier built out of a 2001 IT-support business. We run the platforms most SMEs depend on: Microsoft 365, Google Workspace, DMARC, Bitdefender, Hexnode, Intune, Exclaimer. And we run them properly.
A consultancy, not a call centre.
OSH started as Outsource House in 2001. Paul and Cathleen Ogier supported roughly five thousand users a month across schools and businesses in Johannesburg. The work then was on-site, hands-on, and unglamorous.
By 2018 the centre of gravity had moved into the cloud. We rebranded to OSH.co.za and rebuilt the practice around the platforms our clients actually live in: Microsoft 365, Google Workspace, the email-authentication stack that sits in front of them, the endpoint security that sits behind them, and the device management that ties identity to hardware.
The shape of the team has not changed. Senior engineers do the work. There is no tier-one helpdesk acting as a buffer, no account manager standing between you and the person fixing the problem. That is the whole point.
Paul and Cathleen co-found an on-site IT support business supporting 5,000 users a month.
Supporting schools and companies with up to 5,000 seats. First cloud migrations begin.
Focus shifts entirely to cloud architecture, modern workplace, and managed security.
88 tenants under management, 3,182 endpoints under GravityZone, 47 domains at DMARC p=reject.
Who you actually talk to.
Paul leads the technical side: cloud architecture, identity, DMARC, endpoint security, and the engineering decisions that sit underneath every engagement. After two decades managing networks for businesses and schools, he moved the practice into cloud-first work because that is where the leverage is.
Originally trained as a maths and technical-drawing teacher, Paul still treats problems as logic exercises. That is why the audits we produce read like proofs rather than sales decks.
Cathleen runs the business and financial side. She left a corporate financial-manager role in 2001 to co-found OSH, and her hand is on the value proposition, the engagement structure, and the way work gets delivered to clients.
If a client experience needs fixing, it usually crosses Cathleen's desk first. That is deliberate.
Six stacks. One team. All accountable.
Tenant deployment, migration in either direction, licence right-sizing, Conditional Access, and ongoing operations.
From p=none to p=reject without breaking billing emails. SPF flattening, managed hosting, monthly reporting.
EDR/XDR sales, configuration, agent rollout, and console operations for clients without an in-house security lead.
Enrolment, compliance, BitLocker and FileVault management, and Conditional Access wired back to identity.
Template design, tenant wiring, routing rules, and a signature service that doesn't break DMARC.
Scoped projects with fixed deliverables, then optional ongoing operations once the project closes.
Want the same hands on your stack?
A 60-minute discovery call gets you a written read on what is configured, what is missing, and where the highest-ROI gap sits. No deck. No tier-one triage.
