TierPoint Chicago Polk

601 West Polk Street

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Operated by:

In 2015 TierPoint acquired AlteredScale and this data center.

Opened in 2013, 601 W Polk is a multi-tenant data center facility located within walking distance of Chicago’s central business district.


  • SSAE 16 Type SOC2 certified

Network Providers:

  • AT&T
  • Abovenet/Zayo
  • Cogent
  • Comcast
  • France Telecom
  • GTT
  • Layer42
  • Level3
  • NexGen Networks
  • Sunesys
  • Verizon

Site History:

601 W Polk was originally constructed in 1917 and served as a warehouse and distribution center for Marshall Field’s. The same physical attributes that served the iconic department store continue to benefit the building today. High ceilings, expansive column space, heavy floor loading and a bunker-like construction have allowed our historic building to adapt to a very modern use case.
In the 1990s Sprint established a network point of presence at 601 W Polk. This activity marked a distinct change in the evolution of the property that was continued when Adelphia Communications later acquired the site. Adelphia spent a substantial amount of money upgrading the building infrastructure and adding numerous, diverse fiber entrance facilities in order to create a “carrier hotel.”

Despite Adelphia’s demise the groundwork was in place for Polk to complete its transformation into a state-of-the-art data center facility. In recent times the facility has been home to a range of enterprise and tech companies including members of the Fortune 500, global law firms and hosting companies. In late 2011, AlteredScale purchased the building and began construction of 25,000 square feet of highly available colocation space. Thanks to a unique history and robust architecture 601 W Polk is positioned for growth and occupancy well into the future. [r1]


r1. Altered Scale web link

Map and Nearby Locations:

601 West Polk Street
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Sites within 15 miles of TierPoint Chicago Polk

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Distance Site About
0.02 miles First Communications Chicago
0.17 miles Server Farm Realty 840 South Canal
4 MW Critical Load on Each Floor (Floors 1-5) 130-160 Watts per Raised Floor SF
0.17 miles DataBank (ORD2) 840 S Canal
0.51 miles Atlantic Metro ORD3
0.51 miles Crown Castle 725 S Wells
0.51 miles Colo@ Chicago
0.51 miles Steadfast Chicago 725 Wells
0.51 miles 725 S Wells - 1547 Critical Systems
1547 Acquired the site in December of 2018.
0.51 miles Netrality Chicago: 717 S Wells
The 10 story building was constructed in 1923 and eventually was converted into a data center.
0.64 miles Cogent: 216 W Jackson
0.65 miles CoreSite Chicago CH2
In February 2018, CoreSite acquired a two-acre land parcel in downtown Chicago, Illinois, on which CoreSite built CH2, a greenfield development of a 175,000-square-foot, turn-key, four-story data center supporting 18 critical megawatts of power capacity. The building was completed in June 2020.
0.66 miles 365 Chicago
The site is a former Switch and Data site (also owned by Equinix for a short period.)
0.66 miles Cogent: 427 S LaSalle
0.66 miles InfoRelay Chicago
0.66 miles CoreSite Chicago CH1
Once owned by the Western Union company, the building was formerly known as "The Telegraph Building."
0.67 miles QuadraNet Chicago
0.69 miles Cogent: 600 S Federal
0.69 miles Lumen Chicago 5
0.69 miles Colocation America CH2
0.70 miles 600 S Federal - Digital Realty
0.85 miles Lumen Chicago 1
0.85 miles GTT - 111 North Canal
0.88 miles Verizon: 140 S Dearborn
0.89 miles Lumen Chicago 6
1.10 miles Lumen Chicago 3
1.74 miles Lumen Chicago 4
1.77 miles 350 E Cermak - Digital Realty
1.77 miles Equinix Chicago CH1, CH2, & CH4
Equinix distinctly separates CH1, CH2, and CH4 into separate data centers, but in reality, the sites are in the same building.
1.77 miles Atlantic Metro ORD0
1.77 miles Colocation America CH1
1.77 miles Steadfast Chicago 350 E Cermak
1.77 miles Cyxtera Chicago CH2
Within DRT's Cermak carrier hotel
1.77 miles Cyxtera Chicago CH4
Digital Realty Trust owns the building at 350 Cermak and is CTL's Landlord.
1.79 miles ServerCentral Chicago DRT-CH1
1.80 miles Metro Edge: Illinois Medical District (IMD)
1.87 miles Lumen Chicago 2
2.43 miles QTS Chicago
The campus was a former Sun Times Press Facility and was acquired in 2014
5.40 miles 1547 Chicago Midway Technology Centre
11.14 miles Lumen Broadview
11.70 miles Tierpoint Chicago West
11.75 miles 9333 Grand Ave (DRT)
11.75 miles SingleHop Chicago
11.76 miles Digital Chicago Franklin Park Campus on Grand Ave - Digital Realty
Digital Chicago is a master-planned 40-acre campus in the Village of Franklin Park. The campus has 3 existing buildings, totaling 574,994 sqft
11.77 miles 9377 Grand Ave
11.77 miles 9355 Grand Ave
12.98 miles Digital Crossroad (Indiana NAP)
The facility (DX-1) is a 105,000 square foot, 20-Megawatt (MW) data center located on the former State Line Generating Plant, Hammond, IN.
13.15 miles Digital Crossroad: Hammond, IN (Phase 2)
Digital Crossroad is planning to expand its campus in Hammond, Indiana. The company plans to add another 180,000 sq ft (16,720 sqm) building and 20MW in the second phase.
14.22 miles 505 N Railroad Ave - Digital Realty
The Digital Chicago Campus covers 21 acres of land with access to major fiber networks and can support up to 8 MW of IT load at N+1 redundancies.
14.35 miles DataBank (ORD4) Oak Brook
14.35 miles Verizon: Swift Dr
14.36 miles LexusNexis Oak Brook
14.39 miles Aligned Chicago ORD-01
Aligned's ORD-01 data center is a state-of-the-art facility located in Northlake, IL, just outside of downtown Chicago. At full build, Aligned’s Chicago campus covers 520,000 sq. ft. and offers ~72 MW of critical load.
14.42 miles Aligned ORD-02
Aligned's ORD-02 is a data center located in Northlake, IL near downtown Chicago. Part of Aligned's 18.5-acre hyperscale campus, ORD-02 offers exceptional connectivity at the convergence of over 12 metro/long-haul networks. At full build, ORD-02 building will provide 36MW of critical load capacity expandable to ~52 MW.
14.61 miles Microsoft Chicago Northlake
14.69 miles T5 Northlake IL
15.36 miles Server Farm Oak Brook
The campus was originally built as the corporate headquarters of the Chicago Bridge & Iron Company (CB&I).
15.36 miles Verizon: (Oak Brook)
15.37 miles US Signal Oakbrook
800a 480V 3 phase 450kW diesel generator with 24 hour run time at full load 500kVa UPS capacity with battery backup
15.49 miles NYI Chicago (Oak Brook)
15.54 miles Iron Mountain Chicago
First announced in 2018, the former Hart Schaffner Marx suit factory started construction in 2024.
17.46 miles Equinix Chicago CH7
18.02 miles Element Critical CH1
Element Critical acquired the site in January 2019 from Sungard. The facility was previously known as SunGard Wood Dale (711).
18.05 miles Element Critical CH2
Element Critical acquired the site in January 2019 from Sungard. The facility was previously known as SunGard Wood Dale (341).
18.15 miles EdgeConneX CHI01
18.15 miles Edgeconnex Chicago Campus
The first Chicago site was leaked to the press in Oct 2016. Microsoft is expected to be the anchor tenant with the site supporting up to 25-30 MWs.
18.18 miles Cyxtera Elk Grove CH3
Cyxtera's CH3 Elk Grove site is across the street from the Digital Realty Chicago campus (former Dupont Fabros) and close to Equinix CH3.
18.26 miles EdgeConneX CHI02
18.26 miles Stream Chicago I
18.28 miles 2299 Busse (CH2) Digital Realty
18.35 miles Equinix Chicago CH3
18.44 miles Stream Chicago II
Stream Data Centers' Chicago II data center in Elk Grove Village, Illinois is a 226,000 square foot facility.
18.45 miles 2200 Busse Rd (CH1) DRT
18.45 miles Rackspace Elk Grove ORD1
18.46 miles Digital Elk Grove Village Campus
Digital Realty Trust's Chicago campus is massive and is split among 3 buildings. The campus was acquired from Dupont Fabros in September 2017.
18.46 miles ServerCentral CH1
18.46 miles HostPapa CH1
Formerly known as "ColoCrossing CH1"
18.56 miles 1450 E Devon Ave (CH3) DRT
18.84 miles 360TCS-Lombard
18.84 miles Digital Fortress: Chicago Lombard
18.96 miles STACK Chicago CHI01
19.01 miles Skybox Chicago I
19.06 miles STACK CHI01B
STACK INFRASTRUCTURE CHI01B Chicago Data Center is located at 1441 Touhy Avenue, Elk Grove Village, IL, which currently offers 24 MW of critical power and 221,000 square feet of space.
19.14 miles CoreWeave: US Central ORD1
19.39 miles CenturyLink: Arlington Heights
19.40 miles CloudHQ Mount Prospect ORD3
19.44 miles Prime Elk Grove
19.95 miles CyrusOne Chicago Lombard
9 MW of critical capacity Both a 1.5MW and a 2MW transformer
19.97 miles T5 Chicago II

TierPoint Chicago Polk Data Center Photos

Operating Company

TierPoint is a data center and managed services provider that focuses on secondary markets in the United States. Operating as a private-equity backed company, As detailed in the history section below, Tierpoint has actively acquired smaller providers and impressively rolled up a national platform in 20 markets.

Tierpoint Acquisitions and History

TierPoint was formed in 2010 as Cequel Data Centers LLC, however, the company's origins date back to 1995. Through a conglomeration of acquisitions, TierPoint built its data center portfolio. [r1]


  • Cequel acquired Colo4 (Based in Dallas and originally founded in 2000)


  • Cequel acquired Perimeter Technology (Based in Oklahoma and founded in 2003)


  • Cequel acquired TierPoint (Based in Spokane and founded in 2003). After the acquisition, Cequel was rebranded as Tierpoint
  • 2012 Adhost acquired (Based in Seattle and founded in 1995)
  • 2012 DBSi acquired [r2]


  • Baltimore Technology Park acquired (Based in Baltimore and founded in 2005)


  • TierPoint Management team recapitalized the company
  • Philadelphia Technology Park. Located in the Philadelphia Navy Yard the 25,700 sqft Philadelphia Technology Park first opened in 2010
  • Xand (founded in 1999)


  • Acquired CxP Data Centers that added a 121,000sqft Jacksonville facility [r3]
  • TierPoint Acquires AlteredScale Data Center in Chicago
  • Acquired Windstream for $575 million. The transaction added 20 datacenters, mainly in the East, Midwest, and South, which fit nicely with TierPoint's western-leaning portfolio. Windstream was itself a data center roll-up of sorts. In 2010 Windstream acquired PAETEC and Hosted Solutions in 2010.


  • Cosentury was acquired by Tierpoint in January 2016 for $575 million. Cosentury, was founded in 2001 and was headquartered in Omaha, NE. It provided Colocation, IaaS, and Compliance and Security services. Cosentury was a large company to swallow. It had nine data centers in the Midwest US and 220 emploiyees.

Tierpoint Services

Data center colocation is the prime product, but Tierpoint also offers Cloud, Managed Services, and DIA with DDoS protection.

TierPoint's customer portal allows for self-provisioning of resources (such as VMs and storage) and a dashboard that allows customers to remotely monitor workloads and applications across all locations. The company offers a comprehensive solution portfolio of private, multitenant, hyperscale, and hybrid cloud, plus colocation, disaster recovery, security and other managed IT services.


r1. TierPoint Company Page
r2. Source: Data Center Knowledge
r3. Press Release Archive. July 27, 2015

42 Facilities Owned
22 Markets Served
89.22 Megawatts
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Name Date Added Description
il-chicago-polk-data-center-spec-sheet May 2019

Polk Street Data Sheet (PDF)