In segments where the top five contractors hold 45 to 55 per cent of revenue, the mechanism sustaining that concentration is not price. It is qualification, and it is close to self-reinforcing.
Saudi industrial and energy contracting is concentrated: the top five players hold roughly 45 to 55 per cent of segment revenue, against a residential segment of around 42.5 per cent of the market that is highly fragmented.
The usual explanation for concentration is scale economics. In this case the more important mechanism is qualification.
Complex industrial work is awarded through prequalification. A client establishes technical and commercial criteria, contractors submit evidence against them, and only those who pass are invited to tender. The criteria typically include comparable project experience, financial capacity, safety performance, quality systems and specialist personnel.
Every one of those is reasonable, and together they create a circular problem. Comparable project experience can only be acquired by executing comparable projects, and access to comparable projects is controlled by prequalification. A contractor without a reference cannot get a reference.
The routes around it are limited and all of them are slow. A firm can enter as a subcontractor to a qualified main contractor, accumulating experience on someone else's reference and someone else's margin. It can joint venture with an international firm that has the references, which transfers capability over several projects if the joint venture is structured to do so and transfers very little if it is not. Or it can be acquired.
None of those is a fast route, and the consequence is that the composition of the top five in Saudi industrial contracting changes rarely.
The client's position is defensible. A refinery turnaround, an LNG train or a large data centre is not a place to give an unproven contractor a first opportunity, and the cost of a failed appointment is measured in production rather than in the contract value.
The effects are worth stating anyway. Concentration reduces competitive pressure on price in exactly the segments where projects are largest. It concentrates capability in a small number of firms, which is efficient until one of them is overcommitted. And it makes capacity growth slow, because the qualified population expands only as fast as the subcontracting and joint venture routes allow.
That last point matters now more than usual. Saudi Arabia is running gas processing, data centre, desalination, transport and giga-project programmes concurrently, with a national market of roughly $142.30bn growing near 3.6 per cent in real terms, and it is drawing on a qualified contractor population that expands slowly by design.
Where that constraint binds, it shows up as schedule rather than cost — as the projects that lose the competition for the same firms' attention.
There is a policy lever that works, and it is the one used in several other industrialising markets: requiring qualified main contractors to carry named domestic firms through defined scopes, with the experience formally recorded against the subcontractor rather than absorbed by the main contractor's reference. It converts subcontracting from a dead end into a qualification pathway, and it costs the client nothing beyond the administration.