Below 30 or 40 workstations, an engineer or a retainer will do. Above that, complexity piles up: more addresses or remote working, more business software, audits, clients demanding guarantees, tougher security rules. In several sectors, NIS2 makes management itself accountable for cybersecurity.
At the same time, choices arise that only someone on the inside makes well: which ERP to adopt, how to absorb an acquisition, where to put the budget.
MSP, in one sentence: a Managed Service Provider manages your technology continuously, under contract and for a monthly fee, instead of turning up only when something breaks.