Wisconsin
DataCentersExposed tracks 11 AI data centers in Wisconsin — 1 operating and 1 in the pipeline — across 9 counties, drawing 80 MW of reported power demand from 4 tracked corporate operators. Wisconsin's data-center tax break is projected to cost the state $40M in forgone revenue in FY2024.
Sources: Methodology, Coverage scorecard
DataCentersExposed tracks 11 data centers in Wisconsin — 1 operating and 1 proposed. The 2 Wisconsin facilities with disclosed electrical capacity account for 80 MW of demand on the grid — power that competes with homes and businesses for the same generation and transmission.
Reporting by Eric Keller · Updated May 29, 2026
Wisconsin at a glance
The largest footprint in Wisconsin belongs to Expedient, LLC, behind 1 tracked facility. Prime Data Centers, TierPoint, LLC, and Vantage Data Centers Holdings, LLC round out the most active operators in the state. Many of these sites are filed under shell or project names rather than the parent's — our operator column resolves them back to the real corporate parent wherever the chain is documented.
Geographically, the buildout clusters: Milwaukee County leads Wisconsin with 3 facilities and a composite risk score of 7/100. Dane County and Dunn County follow. Our county risk score weights project exposure (40%), power demand (30%), water draw (15%), and land footprint (15%); the full breakdown is shown on each county page.
Wisconsin is not done growing. 1 facility is in the pipeline — proposed, permitted, or under construction — which is where residents still have a say at zoning hearings and in rate cases. Each pending project is a decision about land, water, electricity prices, and tax revenue that hasn't been finalized.
We also surface the accountability trail: 8 state bills mentioning data centers and 6 recent news items are tracked for Wisconsin below, pulled from LegiScan and GDELT and refreshed automatically. Legislation is linked to the counties and operators it names; news is classified by community sentiment.
Top operators in Wisconsin
The taxpayer price tag
“Qualified Data Centers, s. 77.54(70) $40,000,000 Certain tangible personal property used in the development, construction, renovation or operation of a qualified data center are exempt from sales and use tax. The exemption is only available…”
Program-wide cost of Wisconsin's data-center tax incentive(s), reported by the state — not attributable to a single facility. “Proj” = the state's own forward estimate; all other figures are realized/audited. Each links to its primary source.
Per-deal tax breaks on record
- Qualified Data Center Sales Tax Exemption4×
Specific incentive records we have matched in Wisconsin (state certified-exemption lists, agreements, and disclosures) — most have no public per-site dollar value, so a count is shown rather than an invented figure.
County risk leaderboard
| County | Facilities | Pipeline | Risk |
|---|---|---|---|
| Milwaukee County | 3 | — | 7 |
| Dane County | 1 | — | 4 |
| Dunn County | 1 | — | 4 |
| Marquette County | 1 | — | 4 |
| Waukesha County | 1 | — | 4 |
| Walworth County | 1 | — | 4 |
| Calumet County | 1 | — | 4 |
| Racine County | 1 | — | — |
| Rock County | 1 | 1 | — |
Pipeline & proposals
All tracked facilities
| Facility | Operator | Status | County | MW |
|---|---|---|---|---|
| Panattoni Turtle Data Center | — | Proposed | Rock | — |
| Central Office | — | Mapped (unverified) | Walworth | — |
| Data Holdings Data Center | Vantage Data Centers Holdings, LLC | Mapped (unverified) | Milwaukee | — |
| Expedient Milwaukee | Expedient, LLC | Mapped (unverified) | Milwaukee | — |
| Involta | — | Mapped (unverified) | Calumet | — |
| Lumen Madison 1 Data Center | — | Mapped (unverified) | Dane | — |
| Microsoft Corporation - Mke 3B Data Center | — | Mapped (unverified) | Richland | — |
| Marquette-Adams Telephone Coop | — | Mapped (unverified) | Marquette | — |
| Pewaukee Data Center | Prime Data Centers | Mapped (unverified) | Waukesha | — |
| TierPoint Milwaukee | TierPoint, LLC | Milwaukee | — | |
| West Wisconsin Telcom | — | Mapped (unverified) | Dunn | — |