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Go to PodcastTDS: Middleton Data Center
Latest Podcast
8401 Greenway Blvd
Decommissioned
Facility permanently shut down and decommissioned
Operated by:
TDS: Middleton Data Center
Year Built:
2010
Utility Provider: Madison Gas and Electric
Ownership: TDS Telecom
ax madison greenway lp (artis reit) owns the building; rfa asset management manages it. the building.
TDS Telecom ran a data center in Suite 230 of the Wisconsin Trade Center, the office building at 8401 Greenway Boulevard in Middleton that also held TDS corporate offices. The 29,026 sq ft suite includes a data hall with a 24-inch raised floor, a separate data operations room, UPS rooms and a detached electrical and generator building with A and B generators.
TDS has since left the suite. The landlord, RFA Asset Management, markets it as an existing data center that could also be converted to lab or freezer-farm use.
Site History
- 2024: The landlord begins marketing the former TDS Data Center for lease.
- 2001: TDS has offices in the building.
Map and Nearby Locations
8401 Greenway Blvd
(
Suite 230
)
TDS Telecom Sites
Nearby Facilities
TDS: Middleton Data Center Power Growth Over Time
Operational
Construction
Planned
Prospective
Land Bank
In Doubt
Planned / Prospective
NN
Request Dataset
sites announced, but haven't started construction
Sites within 15 miles of TDS: Middleton Data Center
| Distance | Site | About |
|---|---|---|
| 0.97 miles | SupraNet Madison |
SupraNet runs a SOC 2 Type II colocation data center at 8000 Excelsior Drive on Madison's west side, serving more than 100 customers.
|
| 1.01 miles | TDS: 1912 Parmenter St, Middleton | |
| 4.93 miles | AT&T: 2802 Sylvan Ave | |
| 5.19 miles | AT&T: 2002 Reetz Rd | |
| 6.32 miles | UW-Madison: DoIT Data Center |
UW-Madison's DoIT data center fills the basement of the Computer Sciences and Statistics building at 1210 West Dayton Street. It hosts campus research computing and one of the two Madison Internet Exchange (MadIX) switches.
|
| 6.55 miles | AT&T: 1001 Spring St | |
| 6.67 miles | Epic Systems: Verona |
Epic Systems' primary data center is an underground facility on the company's Verona, Wisconsin, campus that hosts electronic health records for Epic's client health systems.
|
| 7.08 miles | Lumen Madison 1 |
Lumen Madison 1 is a Lumen colocation and network site in the Sunkist Building at 612 West Main Street in Madison, Wisconsin.
|
| 7.27 miles | 5Nines |
5NINES runs a colocation data center in Suite 170 of Network222, the carrier hotel at 222 West Washington Avenue in downtown Madison, Wisconsin. ResTech Services has owned the 5NINES data center business since October 2023.
|
| 7.28 miles | Network222 |
Network222 is the ten-story carrier hotel at 222 West Washington Avenue on Madison's Capitol Square. It houses the 5NINES and US Signal data centers and a Madison Internet Exchange (MadIX) switch.
|
| 7.29 miles | US Signal: WI01 Madison |
US Signal's WI01 data center occupies Suite 1 of the Network222 carrier hotel on Madison's Capitol Square and anchors the company's Wisconsin fiber network.
|
| 7.37 miles | AT&T: 122 W Main St | |
| 7.67 miles | Lumen: 710 E Mifflin St | |
| 7.77 miles | CDW: Fitchburg |
Berbee Information Networks opened its first data center in 1999 at its headquarters at 5520 Research Park Drive in Fitchburg, Wisconsin. CDW bought Berbee in 2006 and later closed the data center; Promega bought the building in 2024.
|
| 8.44 miles | US Signal: WI02 Madison |
US Signal's WI02 data center at 5515 Nobel Drive in Fitchburg, just south of Madison, Wisconsin, is the largest colocation facility in the Madison market. US Signal bought it with OneNeck from TDS in 2024.
|
| 9.25 miles | AT&T: 215 Kedzie St | |
| 10.86 miles | AT&T: 729 Pflaum Rd | |
| 11.33 miles | T-Mobile: Madison | |
| 11.90 miles | MHTC: 200 E Main St, Mount Horeb | |
| 12.04 miles | Dane County Data Exchange I |
Dane County Data Exchange I is a carrier-neutral data center building at 4916 East Broadway in Madison, Wisconsin, home to EdgeConneX's Madison edge data center and shell space for lease.
|
| 12.05 miles | EdgeConnex Madison |
EdgeConneX's MAD01 edge data center occupies a pod in the Dane County Data Exchange I building at 4916 East Broadway in Madison, Wisconsin.
|
| 12.90 miles | Wisconsin DET: Femrite Data Center |
The Femrite Data Center at 5830 Femrite Drive in Madison is the State of Wisconsin's primary data center, run by the Department of Administration's Division of Enterprise Technology since 2006.
|
| 13.13 miles | American Family Insurance: Madison HQ |
American Family Insurance runs an enterprise data center at its national headquarters campus at 6000 American Parkway in Madison, Wisconsin.
|
| 13.23 miles | QTS: Vienna, Wisconsin |
QTS Data Centers proposed a large data center campus in the Town of Vienna, north of Madison, Wisconsin, in 2025. It withdrew in 2026 and chose a site in Iowa.
|
| 13.80 miles | QTS: Vienna Expansion |
Later phases of QTS Data Centers' proposed campus in the Town of Vienna, Wisconsin, withdrawn in 2026 when QTS chose a site in Iowa.
|
| 14.46 miles | Brightspeed: 145 E Holum St, DeForest | |
| 15.22 miles | QBE: Sun Prairie |
QBE's former data center sits in Building 300 of its former General Casualty campus at 1 QBE Way in Sun Prairie, Wisconsin. QBE sold the campus in 2025, and the space is now marketed for lease.
|
| 17.25 miles | Verizon: 117 N Bristol St, Sun Prairie |
Operating Company
Operated by:
TDS Telecom is a wholly owned subsidiary of Telephone and Data Systems, Inc. (NYSE: TDS) and is headquartered in Madison, Wisconsin. It is one of the largest local exchange carriers in the United States, serving more than 900 rural and suburban communities in about 30 states with broadband, telephone and television service. Its operations include TDS Metrocom and BendBroadband.
TDS entered the data center business in 2010 when it bought TEAM Companies, and it later ran its data centers as OneNeck IT Solutions. It sold OneNeck, including the Fitchburg data center near Madison, to US Signal in 2024. TDS also ran a data center in its Middleton office building until about 2023.
TDS Telecom History:
- In September 2024, TDS completed the sale of OneNeck IT Solutions to US Signal.
- In 2019, TDS Telecom and its parent marked 50 years in business.
- In December 2010, TDS bought TEAM Companies and its data centers.
- Founded in 1969 as part of Telephone and Data Systems.
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