Across the three parts of this series we described three gaps: an installed base recorded as an asset register rather than a demand forecast; service delivered inside a product price and never invoiced; and reach that belongs to independents rather than to the OEM.

Read separately, each looks like a functional problem with a functional fix. Build the forecast. Price the service. Sign the partners.

Read together, they have one thing in common that none of those fixes addresses. In every engagement where we found these gaps, we could not find the person who was accountable for closing them.

That is not a strategy gap. It is a governance gap, and it is the reason the same three findings recur at companies that already know what the findings are.

What “no owner” looks like in practice

At a €2 billion industrial OEM, the absence of systematic proactive follow-up was costing an estimated €30 million of aftermarket revenue annually. Nobody disputed the number. The work sat unclaimed because the account managers reported into a product organisation whose targets were equipment volumes.

In a separate division, we modelled the sales opportunity locked inside an account manager’s calendar at between €4.3 million and €13.0 million a year, the equivalent of 859 to 2,576 additional quotations converted. Realising it required changing what account managers spent their week on. No one had the authority to make that trade, because the hours belonged to a service function and the revenue would land in a product P&L.

And the cheapest fix we have ever measured (adding an urgency scale to engineer inspection reports, which lifted the parts order rate from 32% to 90% on the sample we saw) is a template change. It has no capital cost and no systems dependency. It has been available the entire time. It required somebody whose job was to notice it.

The pattern is consistent. The aftermarket is not underfunded in these businesses. It is unrepresented.

The number that should end the argument

The metric with the most leverage over aftermarket lifetime value is attachment rate, the proportion of new equipment sold with a service agreement or parts package attached. In our modelling it accounts for 47–50% of total lifetime value, ahead of share of lifetime served (25–26%), annual service sales (15–20%) and equipment lifetime (10–12%).

It is also the metric decided furthest from the service business. Direct channels typically attach at 70–100%; indirect channels at 30–50%. The difference is set in deal rooms and channel agreements where, in most OEMs we have worked with, nobody from service is sitting.

You cannot delegate a number to a function that is not present when the number is set.

Why the structure resists

Industry data suggests the underlying arrangement is common rather than exceptional. In one widely cited review of 109 large listed manufacturers, only 28% reported a separate P&L for services at all, and companies that did report one earned, on average, around 14 percentage points more of their revenue from aftermarket than the cross-industry average. (That sample is drawn from a single national market, so we treat the level as indicative and the direction as reliable.)

Without its own P&L, four things happen that no amount of commitment prevents.

Service investment loses internal competitions against equipment development, judged on equipment’s payback logic. Service margin becomes an allocation policy rather than a fact, because parts move at transfer prices and field overhead is shared. Deal teams carrying volume incentives trade the service agreement away to close the machine, and the give-away lands in a future period against someone else’s target. And one management system tries to run two businesses with incompatible rhythms, equipment being low-frequency, high-value and project-governed; service being high-frequency, low-value, local and labour-constrained.

We covered those four in part two. The fifth is the one this piece is about: with no named executive, attach rate, agreement-base growth and installed-base coverage are not managed, not forecast and not disclosed. They are not bad numbers. They are absent numbers.

What actually triggers the decision

In our experience boards do not restructure because the argument is good. They restructure when one of three things happens.

Scale crosses over. When aftermarket passes roughly half of revenue and the clear majority of EBIT, a structure in which the minority of revenue governs the majority of profit is actively destroying information.

The capital markets ask first. Investors begin requesting separate disclosure before management is ready to give it. Once a target is public, it needs an owner.

The portfolio moves. Mergers, divestments and spin-offs create the only realistic window to re-cut an organisation without running a standalone reorganisation.

If none of these is live, the honest answer is usually to build the accountability without the org chart: one named executive, a shadow P&L, and the three metrics above reported monthly to the leadership team. That is most of the benefit at a fraction of the disruption.

Two cautions

First, a reporting-line change is not a P&L change. The most common failure mode we see described across this field is a new aftermarket unit that inherits a name, a leader and a slide, but not the order-to-invoice process or the data infrastructure underneath it. Without those, the unit can report on the problem it was created to fix and change nothing about it. The organisational redesign and the process-and-data workstream have to run together, or the first one is theatre.

Second, “aftermarket” may not be one business. At least one major equipment group has split it into two, field service, which is labour-led, local and utilisation-driven, and consumables, which is product-led and governed by manufacturing and supply chain. Those have different economics and arguably should not share a P&L at all. Most OEMs treat aftermarket as a single thing. It is worth asking whether yours is two.

The argument, compressed

You cannot sell to an installed base you cannot see. You cannot capture what your own commercial model gives away. You cannot serve what you cannot reach.

None of those is a technology problem, and none of them is solved by a better plan. They are solved by making them somebody’s job, with a P&L, a seat at the table, and metrics that appear in the management pack whether or not they are flattering.

The dedicated aftermarket business unit is not a growth initiative. It is a governance correction, and it is the subject of the white paper we are writing next.

SprintlyWorks runs eight-to-ten week sprints for industrial OEMs on installed base visibility, aftermarket capture and service channel design. The figures above come from client engagements; clients are described, not named.

Previously: Your Installed Base Is Not an Asset Register, The Service You Already Deliver and Never Invoice, and Reach You Do Not Own.