Berbee Information Networks added a bunker to its Fitchburg headquarters in 1999 to house its first data center, and it sold colocation there from 2000. CDW bought Berbee in 2006 and kept the data center running as CDW Berbee. The data center had raised floors, two utility services from redundant substations and a backup generator.
CDW later left the building, and brokers marketed it, with its former data center, from 2020. Promega bought the building in 2024.
| Distance | Site | About |
|---|---|---|
| 0.79 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.
|
| 2.58 miles | AT&T: 2002 Reetz Rd | |
| 4.26 miles | AT&T: 2802 Sylvan Ave | |
| 4.50 miles | AT&T: 1001 Spring St | |
| 4.58 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.
|
| 4.61 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.
|
| 5.03 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.
|
| 5.04 miles | AT&T: 122 W Main St | |
| 5.04 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.
|
| 5.05 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.
|
| 5.74 miles | Lumen: 710 E Mifflin St | |
| 6.68 miles | AT&T: 729 Pflaum Rd | |
| 6.91 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.
|
| 7.12 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.
|
| 7.14 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.
|
| 7.25 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.
|
| 7.29 miles | T-Mobile: Madison | |
| 7.61 miles | TDS: 1912 Parmenter St, Middleton | |
| 7.76 miles | AT&T: 215 Kedzie St | |
| 7.77 miles | TDS: Middleton Data Center |
The former TDS Data Center occupies Suite 230 of the Wisconsin Trade Center office building at 8401 Greenway Boulevard in Middleton, Wisconsin. TDS has since left, and the landlord markets the suite for lease.
|
| 8.09 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.
|
| 12.66 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.
|
| 15.20 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.
|
| 15.78 miles | MHTC: 200 E Main St, Mount Horeb | |
| 16.31 miles | Verizon: 117 N Bristol St, Sun Prairie | |
| 17.20 miles | Brightspeed: 145 E Holum St, DeForest | |
| 17.65 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.
|
| 17.82 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.
|
October 21, 2021 CDW
CDW Corporation has revealed its plans to acquire Sirius Computer Solutions for $2.5 billion. Sirius was founded in 1980, and it is a provider of mission-critical technology-based solutions for close to 4,000 customers. According to CDW, the transaction will accelerate its services and solutions...
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