The Service-Contract AnnuityNarrow moat

At the heart of the stickiest part of Vertiv's business is the service contract: the recurring agreement under which Vertiv maintains, monitors, and supports the power and cooling equipment it has installed. This revenue is everything the hardware business is not — recurring rather than one-time, predictable rather than lumpy, and higher-margin than the equipment sale itself. It behaves like an annuity: a base of contracts that renews year after year, growing as the installed base of equipment grows, and providing a stable, profitable counterweight to the cyclicality of new-equipment orders.

The compounding is the beautiful part. Every unit of power and cooling equipment Vertiv sells in today's boom is not just a one-time sale; it is the seed of years of future service revenue. The record equipment sales of the AI build-out are therefore quietly building a much larger future annuity — a dynamic the market, transfixed by the hardware growth, tends to underweight. Customers renew because the cost of a lapse in service on mission-critical infrastructure is unthinkable and because the switching costs are real: the equipment is Vertiv's, the service history and relationships are in place, and the trusted incumbent servicer has a powerful advantage. The limit is that the most capable customers can service in-house and that independent maintenance firms compete for the same contracts — but the service annuity remains the closest thing in Vertiv's portfolio to a genuine, durable, compounding moat — an annuity seeded by every unit of $10B-plus in annual hardware sales¹. It is also being bought as well as grown: in the June 2026 quarter services and spares rose 28.6%, but only 10.1% organically, with $89.1 million of the $148.7 million increase coming from acquisitions².