Where Do You Fit in Wisconsin's $15B AI Build? Who is building Project Lighthouse in Port Washington? The contractors, the construction stages, ATI workforce data and the supplier registration route.
2026-09-24
Project Lighthouse already has named builders, buildings at different construction stages, and a supplier database. Here is how to turn that information into a focused business-development conversation.
Project Lighthouse, Port Washington. Photo: McCarthy How does a regional business find its place in a $15 billion AI project?
I started with the latest court news out of Port Washington, Wisconsin. Then I followed the construction updates, the builders and the workforce around Vantage Data Centers' Project Lighthouse, the campus supporting Oracle and OpenAI.
The useful discovery was how specific the investigation became.
There are named construction teams. There are buildings at different stages. And there is a public route for a business to identify what it can supply.
For a contractor, distributor or testing firm, those details turn a distant technology headline into a set of questions someone can actually answer.
The construction update that changes the conversation
Different buildings, different stages. Photo: McCarthy Wisconsin Public Radio reported September 22 that a judge dismissed the challenge to the project's tax incremental district. Its report said the written order still awaited signature and identified a separate case concerning future development incentives. The ruling should not be read as resolving every project dispute.
But the campus was already under construction.
In its August to September update , Vantage reports that two buildings are enclosed and have moved into interior work. Structural framing continues on the other two.
That is the detail I would bring into a business-development meeting.
A supplier needs to know which building, which construction team and which delivery date its offer serves. A broad pitch about supporting AI infrastructure gives the buyer much less to work with.
The different stages suggest different conversations about installation, materials and later testing. They do not reveal which packages remain unawarded. That still requires a direct check with the responsible team.
Who is building Project Lighthouse?
The delivery organization. Photo: McCarthy I went looking for the companies behind the campus.
OSHA's Project Lighthouse partnership record identifies three general contractor entities: Turner McCarthy Joint Venture, The Weitz Company and The Whiting-Turner Contracting Company .
Those names give a regional firm a starting map of the delivery organization.
Turner's own announcement places its joint venture with McCarthy on Phase 2, Buildings 13 and 14. Weitz separately identifies WI12 as its 202 MW Lighthouse project.
Turner Construction and Whiting-Turner are separate companies. Keeping that distinction straight matters when routing an introduction.
McCarthy's July account of the jobsite describes a joint-venture operations staff exceeding 200 and another 250 McCarthy craft workers. That is a dated account of part of the project, rather than a current campus-wide headcount. It establishes that the delivery organization is already mobilized.
The next useful question is who manages the scope your company can perform within that organization.
What ATI shows around the work
423 in the county, 6,029 in the metro. Photo: McCarthy Then I checked American Trades Index.
As of September 24, ATI holds 423 current electrical license records in Ozaukee County . The Milwaukee-Waukesha metropolitan area holds 6,029 , including Ozaukee.
Breaking down the metro total produces a more useful picture:
Credential tier Current records Journeyman 1,787 Master 1,479 Apprentice 1,846 Contractor/business 657 Inspector 260 Total 6,029
The journeyman and master categories total 3,266 records .
These are credential records associated with the market, not a count of people available for Lighthouse. Individuals can hold more than one credential; business and inspector records also appear in the total. Contractors and workers can travel across these boundaries.
The business implication is that a county-only view misses much of the surrounding market. Regional firms should assess the experienced personnel, supervision and apprentices they can organize into teams, alongside their existing commitments.
Vantage and the Wisconsin Building Trades Council have also announced a local-union workforce commitment . A credible introduction should explain how a firm would meet the project's workforce and qualification requirements.
A direct route for subcontractors and suppliers
The city's project information page links to Vantage's subcontractor and supplier database .
Its scope categories include electrical testing, wire and cable, HVAC, fire protection and underground piping. It asks about union affiliation and barriers involving financing, insurance or bonding.
This is an interest-registration route. A listed category does not establish an open bid, an unfilled need or an award.
For the right business, however, it is a practical introduction. A firm can connect its capabilities to a recognizable part of the build instead of sending a generic sales message.
McCarthy also publishes a trade-partner prequalification route . That is a company-wide process, not proof of admission to Lighthouse procurement. Ask the project team which process applies to your work.
The next move for Wisconsin businesses
Make the introduction specific. Photo: McCarthy Start with a specific offer.
Identify the work you can perform, the relevant experience behind it, the team or inventory you could commit, and when you could deliver. Register through the project database, then confirm the appropriate builder or trade contractor to approach.
The questions that matter are straightforward: Is this scope already awarded? Are lower-tier suppliers being considered? What qualification is required? What delivery window needs support?
We have not verified a currently open package or bid deadline. That is the next piece of intelligence to establish.
The opportunity today is to make a well-informed introduction to an active construction supply chain. The public record already gives you the project, its builders, its construction stages and a place to begin.
Register your company's interest in Project Lighthouse.
If your business can supply, install or test the systems behind AI, make it easy for the relevant team to understand exactly where you fit.
Methodology
Research checked September 24, 2026. ATI licensing snapshot: September 24. Construction stages: Vantage's August to September update. McCarthy staffing account: July 21 publication. These dates describe different evidence, not one simultaneous site survey.
This county’s market page: projects and licensed trades
More from the Index The American Trades Index
