Co-managed IT support is the model for businesses that already have an internal IT team — and need an MSP to augment them, not replace them. Your IT manager keeps strategic ownership. TechAssist provides specialist bench depth, after-hours coverage, project capacity, and the tooling your internal team would otherwise have to build themselves.
This is the model we use for mid-to-larger Australian businesses — typically 100 to 500 staff — where there is an in-house IT lead or small internal team who handles the day-to-day, but where specialist work (cybersecurity, Microsoft 365 architecture, infrastructure projects, after-hours response) needs more depth than one or two people can carry.
How Co-Managed IT Works
Three modes of engagement, each tuned to where your internal team needs the lift.
01
Bench Depth on Demand
Your internal team handles BAU. We are the call when specialist capability is needed — Microsoft 365 architecture, Azure deployment, cybersecurity uplift, network redesign. Available by the hour, by the project, or under a retainer that draws down month-to-month.
02
After-Hours & Overflow Coverage
Your team works business hours. We cover evenings, weekends, public holidays, and overflow during illness or leave. Same ticketing system, same documented playbooks, your users don’t notice the handoff. Single point of accountability for what happened out-of-hours.
03
Tooling & Process Lift
RMM, ticketing, documentation, monitoring, automation — we bring the tooling your internal team would otherwise have to evaluate, license, deploy, and maintain. Your team uses it; we run it underneath.
What Co-Managed IT Covers
The specialist work your internal team needs to draw on — without hiring more headcount.
Your IT Manager Stays in Charge
The wrong way to do co-managed is to insert the MSP between the IT manager and the business. That undermines the role, erodes ownership, and almost always ends in friction. The right way is the opposite: the IT manager stays the single point of accountability to the executive, and we are a resource they can deploy where they need it.
In practice this means your IT manager runs the ticket queue, sets priorities, and owns the roadmap. We are visible in their tooling, but we work to their direction. They keep the relationship with executives; we keep the lights on under their direction.
Co-Managed vs Fully Managed — Which One Fits
Fully managed (our standard managed IT service) replaces the need for an internal team. Co-managed augments one. The choice usually comes down to whether you already have an IT manager you want to keep, and whether the scale of work justifies internal headcount on top of an MSP.
Our rough rule of thumb: under 100 staff and one IT person — fully managed is usually a better fit. Over 100 staff with two-plus internal IT — co-managed almost always wins. The middle ground is genuinely a judgement call and depends more on the specific IT manager than the staff count.
Engagement Models
Three commercial models depending on how predictable your draw-down is:
Retainer with hours pool — fixed monthly fee for an agreed hours pool, unused hours roll over within a quarter. Best when your internal team has steady-but-variable specialist demand.
Per-user fully co-managed — fixed per-user fee covering helpdesk overflow, after-hours, tooling, and specialist bench. Best when your internal team handles BAU but wants seamless handoff outside hours.
Project-by-project — fixed-fee or T&M project engagements only, no ongoing retainer. Best when your internal team is fully staffed for BAU and only needs us for discrete pieces of work.
Why Internal IT Teams Choose TechAssist as Their Co-Managed Partner
- We Do Not Try to Replace You — Co-managed is a deliberate offering for us, not a sales funnel into “let us take it all over”. Your internal team’s role is protected.
- Specialist Bench Depth — Microsoft, Azure, cybersecurity, networking, infrastructure — multiple senior engineers across each domain. Your internal team gets coverage your hiring budget could not match.
- Australian-Employed Engineers — Same time zone, same business hours, same cultural context. Important for after-hours handoffs.
- Same Tooling and Documentation Standards — Your team works in their environment; we work in the same environment. No “MSP black box” with information your team cannot access.
- Industry Depth — Active co-managed engagements across professional services, manufacturing, education, and healthcare in Australia.
- Honest About Fit — If full managed actually suits you better, we will tell you. We don’t try to sell co-managed when fully managed is the right model.
Talk to Us About Co-Managed IT
If your internal IT team is stretched, or you are looking for specialist depth without growing headcount, get in touch. We will scope what a co-managed engagement would actually look like for your business — and be honest if a different model would suit better.