Who makes developers (transmission) for AI data centers

A transmission developer originates a line: identifies the need, secures the route, wins the regulatory approval and the cost allocation, arranges the financing, and then has it built by the contractors in the sibling part. It is a development and permitting business rather than a construction one, and the work is measured in years of process before any steel is ordered. The reason independent developers exist alongside the utilities is that some transmission crosses utility and state boundaries where no single incumbent has both the obligation and the incentive to build. Those interregional lines are exactly the ones that would move power from where it is cheap and plentiful to where AI campuses are being built, and they are the hardest to get approved, because the costs fall on one set of ratepayers and the benefits on another. That cost-allocation question, not engineering, is what determines whether these projects proceed, and it is decided by regulators over years. What to look for is where a project sits in that process — a route under option is very different from an approved project with cost allocation settled — and whether a developer has actually energised a line before. The list here mixes incumbent utilities developing within their own territory with merchant developers taking regulatory risk; those are different businesses with different odds.