| PowerHouse Joliet Technology Center | PowerHouse Data Centers | Joliet | planned | 1800 MW |
| Morris Technology Park | Tract | Morris | planned | 1000 MW |
| Related Digital South Works Campus (8080 Lake Shore Drive) | Related Digital | Chicago | planned | 1000 MW |
| Hut 8 Logan Prairie | Hut 8 | Latham | planned | 500 MW |
| T5 Chicago IV (Grayslake Campus) | T5 Data Centers | Grayslake | planned | 480 MW |
| Prime Chicago Campus | Prime Data Centers | Elk Grove Village | under construction | 270 MW |
| CloudHQ Mount Prospect Technology Campus | CloudHQ | Mount Prospect | under construction | 252 MW |
| Compass Chicago Campus (Hoffman Estates) | Compass Datacenters | Hoffman Estates | operating | 200 MW |
| Compass Chicago Campus | Compass Datacenters | Hoffman Estates | operating | 200 MW |
| Prime Elk Grove Campus | Prime Data Centers | Elk Grove Village | planned | 150 MW |
| Microsoft Chicago Northlake Data Center | Microsoft | Northlake | operating | 120 MW |
| CyrusOne CHI1-CHI3 | CyrusOne | Aurora | operating | 109 MW |
| Edged Aurora (Chicago Campus) | Edged Energy | Aurora | under construction | 96 MW |
| Edged Chicago (Aurora) | Edged Energy | Aurora | operating | 96 MW |
| Edged Chicago Building 2 | Edged Energy | Aurora | under construction | 72 MW |
| Edged ORD01 Aurora | Edged Energy | Aurora | under construction | 72 MW |
| ORD01-01 | Prime Data Centers | Elk Grove Village | operating | 72 MW |
| Edged Chicago ORD01-2 | Edged Energy | Aurora | under construction | 72 MW |
| NTT Chicago Campus (Itasca) | NTT Global Data Centers | Itasca | operating | 72 MW |
| ORD01-03 | Prime Data Centers | Elk Grove Village | planned | 54 MW |
| ORD01-02 | Prime Data Centers | Elk Grove Village | planned | 54 MW |
| QTS Chicago 1 DC1 | QTS Data Centers | Chicago | operating | 42 MW |
| Stream Chicago III (ORDC) | Stream Data Centers | Elk Grove Village | under construction | 40 MW |
| CHI01 (Elk Grove Village) | STACK Infrastructure | Elk Grove Village | operating | 40 MW |
| CyrusOne CHI3 Aurora Campus | CyrusOne | Aurora | under construction | 40 MW |
| H5 Chicago | H5 Data Centers | Chicago | operating | 36 MW |
| Iron Mountain CHI-1 | Iron Mountain Data Centers | Des Plaines | operating | 36 MW |
| T5 Chicago III Northlake | T5 Data Centers | Northlake | under construction | 36 MW |
| STACK Elk Grove Village | STACK Infrastructure | Elk Grove Village | announced | 36 MW |
| STACK Infrastructure CHI02 | STACK Infrastructure | Elk Grove Village | operating | 36 MW |
| Chicago | Iron Mountain Data Centers | Chicago | operating | 36 MW |
| Chicago CH1 | NTT Global Data Centers | Itasca | operating | 36 MW |
| Chicago CH2 | NTT Global Data Centers | Itasca | operating | 36 MW |
| Microsoft Elk Grove Village Data Center | Microsoft | Elk Grove Village | operating | 31.5 MW |
| Stream Chicago I (ORDA) | Stream Data Centers | Elk Grove Village | operating | 31 MW |
| Skybox Chicago | Skybox Datacenters | Chicago | operating | 30 MW |
| YLO Chicago Campus (YLO-01/02) | Chirisa Technology Parks | Volo | operating | 28 MW |
| Lambda Chicago AI Factory (EdgeConneX) | Lambda | Chicago | under construction | 23 MW |
| CH1 | Serverfarm | Chicago | operating | 21.5 MW |
| Microsoft Elk Grove Village | Microsoft | Elk Grove Village | under construction | 18.9 MW |
| CoreSite CH2 Chicago | CoreSite | Chicago | operating | 18 MW |
| CyrusOne CHI6 (Wood Dale) | CyrusOne | Wood Dale | operating | 18 MW |
| Chirisa Volo Technology Park YLO-02 | Chirisa Technology Parks | Volo | under construction | 14 MW |
| Chirisa Volo Technology Park YLO-01 | Chirisa Technology Parks | Volo | operating | 14 MW |
| CyrusOne CHI5 | CyrusOne | Lombard | operating | 12 MW |
| DataBank ORD4 | DataBank | Oak Brook | operating | 8.75 MW |
| Element Critical Chicago One | Element Critical | Wood Dale | operating | 7 MW |
| Colovore ORD01 | Colovore | Chicago | under construction | 6 MW |
| Chicago Two | Element Critical | Wood Dale | operating | 5 MW |
| West Chicago Data Center (CDC 603) | New Continuum Data Centers | West Chicago | operating | 3 MW |
| DataBank ORD3 | DataBank | Mount Prospect | operating | 2.7 MW |
| United Airlines BNOC Data Center | United Airlines | Arlington Heights | operating | 2.5 MW |
| DataBank ORD2 | DataBank | Chicago | operating | 2 MW |
| DataBank ORD1 | DataBank | Chicago | operating | 1 MW |
| Fermilab Grid and Scientific Computing Facility | Fermi National Accelerator Laboratory | Batavia | operating | - |
| Digital Realty ORD01 (1600 South Federal) | Digital Realty | Chicago | operating | - |
| Deft CHI1 | Deft | Chicago | operating | - |
| Argonne Leadership Computing Facility | Argonne National Laboratory | Lemont | operating | - |
| HorizonIQ Chicago (US-North Central, 350 E Cermak) | HorizonIQ | Chicago | operating | - |
| HorizonIQ Elk Grove Village (US-North Central) | HorizonIQ | Elk Grove Village | operating | - |
| CoreWeave Chicago (ORD1) | CoreWeave | Chicago | operating | - |
| CME Group Data Center Aurora | CME Group | Aurora | operating | - |
| Vapor IO Kinetic Grid Chicago | Vapor IO | Chicago | operating | - |
| Chicago ORD1 | CenterSquare | Chicago | operating | - |
| Chicago (Franklin Park) | HorizonIQ | Franklin Park | operating | - |
| Meta DeKalb Data Center | Meta | DeKalb | operating | - |
| CHIL1 (Chicago) | 1547 Critical Systems Realty | Chicago | operating | - |
| Colocation America Chicago (1808 Swift Dr, Oak Brook) | ColocationAmerica | Oak Brook | operating | - |
| Colocation America Chicago (350 E Cermak Rd) | ColocationAmerica | Chicago | operating | - |
| Colocation America Chicago (600 S Federal St) | ColocationAmerica | Chicago | operating | - |
| T5 Chicago IV Grayslake | T5 Data Centers | Grayslake | planned | - |
| T5 CHI V Elk Grove Village | T5 Data Centers | Elk Grove Village | planned | - |
| Equinix Minooka Campus | Equinix | Minooka | planned | - |
| Joliet Technology Center | PowerHouse Data Centers | Joliet | planned | - |
| QTS Chicago Campus Expansion | QTS Data Centers | Chicago | planned | - |
| Vultr Chicago Cloud Region | Vultr | Chicago | operating | - |
| Prime Data Centers Elk Grove Village Campus | Prime Data Centers | Elk Grove Village | planned | - |
| Edged DeKalb Campus | Edged (Endeavour Energy) | DeKalb | planned | - |
| Monarch Energy Rockford Data Center | Monarch Energy | Rockford | planned | - |
| Microsoft Cherry Valley Campus | Microsoft | Cherry Valley | announced | - |
| Volico CHI1 Chicago Data Center | Volico | Chicago | operating | - |
| Colocation America Chicago (800 E Business Center Dr, Mt Prospect) | ColocationAmerica | Mount Prospect | operating | - |
| Colocation America Chicago (2200 Busse Rd, Elk Grove Village) | ColocationAmerica | Elk Grove Village | operating | - |
| Oppidan Carol Stream Data Center | Oppidan | Carol Stream | under construction | - |
| Lambda Chicago (EdgeConneX) | Lambda | Chicago | under construction | - |
| CHIL2 (Chicago, 725 South Wells) | 1547 Critical Systems Realty | Chicago | operating | - |
| 1547 Chicago (CHIL1, Schulze Baking Company Building) | 1547 Critical Systems Realty | Chicago | operating | - |
| Mattoon Data Center | Consolidated Communications | Mattoon | operating | - |
| Elk Grove Village | HorizonIQ | Elk Grove Village | operating | - |
| QTS Chicago Data Center | QTS Data Centers | Chicago | operating | - |
| Feynman Computing Center | Fermi National Accelerator Laboratory | Batavia | operating | - |
| Karis Acquisitions DeKalb Campus (Peace & Guler Roads) | Karis Acquisitions | DeKalb | planned | - |
| CME Group Aurora Data Center (Globex matching engine) | CME Group | Aurora | operating | - |
| WHP Braidwood Campus | Western Hospitality Partners | Braidwood | planned | - |
| Argonne Leadership Computing Facility (Aurora) | Argonne National Laboratory | Lemont | operating | - |
| CyrusOne Sangamon County Campus (Talkington Township) | CyrusOne | Waverly | planned | - |
| Allstate Rochelle Data Center | Allstate | Rochelle | operating | - |
| Colovore ORD01 | Colovore | Aurora | under construction | - |
| Colovore ORD02 | Colovore | West Chicago | under construction | - |
| Walgreens National Data Center | Walgreens | Mount Prospect | operating | - |
| State Farm Corporate Data Center | State Farm | Bloomington | operating | - |
| Equinix CH1 | Equinix | Chicago | operating | - |
| Digital Realty CH1 | Digital Realty | Elk Grove Village | operating | - |
| Illinois Central Computing Facility (CCF) | Illinois Department of Innovation & Technology | Springfield | under construction | - |
| Center for Research Computing and Data (Metis Cluster) | Northern Illinois University | DeKalb | operating | - |
| Digital Realty ORD12 | Digital Realty | Franklin Park | operating | - |
| ACER High Performance Computing (Lakeshore / Extreme) | University of Illinois Chicago | Chicago | operating | - |
| Digital Realty ORD23 | Digital Realty | Northlake | operating | - |
| Central Computing Facility (CCF) | Illinois Department of Innovation & Technology | Springfield | under construction | - |
| NCSA National Petascale Computing Facility (Delta/DeltaAI) | National Center for Supercomputing Applications | Urbana | operating | - |
| Argonne Leadership Computing Facility (Aurora/Polaris) | Argonne National Laboratory | Lemont | operating | - |
| Digital Realty ORD12 (9333 Grand Avenue) | Digital Realty | Franklin Park | operating | - |
| Deft EGV1 | Deft | Elk Grove Village | operating | - |
| Digital Realty ORD13 (9355 Grand Avenue) | Digital Realty | Franklin Park | operating | - |
| Digital Realty ORD23 (505 North Railroad Avenue) | Digital Realty | Northlake | operating | - |
| Digital Realty ORD14 (9377 Grand Avenue) | Digital Realty | Franklin Park | operating | - |
| CoreSite CH1 | CoreSite | Chicago | operating | - |
| CoreSite CH2 | CoreSite | Chicago | operating | - |
| QTS Chicago | QTS Data Centers | Chicago | operating | - |
| Netrality 717 South Wells (Chicago) | Netrality Data Centers | Chicago | operating | - |
| Digital Realty ORD10 | Digital Realty | Chicago | operating | - |
| Aligned ORD-01 | Aligned Data Centers | Northlake | operating | - |
| Aligned ORD-03 | Aligned Data Centers | Elk Grove Village | operating | - |
| 717 South Wells | Netrality Data Centers | Chicago | operating | - |
| Chicago | QTS Data Centers | Chicago | operating | - |
| CyrusOne CHI3 | CyrusOne | Aurora | operating | - |
| H5 Chicago | H5 Data Centers | Chicago | operating | - |
| Elk Grove Village ORD2 | CenterSquare | Elk Grove Village | operating | - |
| Lisle ORD4 | CenterSquare | Lisle | operating | - |
| National Center for Supercomputing Applications (National Petascale Computing Facility) | University of Illinois Urbana-Champaign | Urbana | operating | - |
| Equinix CH5 | Equinix | Elk Grove Village | operating | - |
| 365 Data Centers Chicago | 365 Data Centers | Chicago | operating | - |
| US Signal IL01 (Chicago) | US Signal | Chicago | operating | - |
| US Signal IL02 (Aurora) | US Signal | Aurora | operating | - |
| ORD3 | Hivelocity | Chicago | operating | - |
| 11:11 Systems Chicago Data Center | 11:11 Systems | Chicago | operating | - |
| Chicago Data Center (CHI) | Digital Fortress | Lombard | operating | - |
| Equinix CH3 | Equinix | Elk Grove Village | operating | - |
| Equinix CH4 | Equinix | Chicago | operating | - |
| Stream Chicago III (ORDC) | Stream Data Centers | Chicago | planned | - |
| EdgeConneX Chicago (CHI01/CHI02/CHI03) | EdgeConneX | Chicago | operating | - |
| Chicago - West Data Center | TierPoint | Chicago | operating | - |
| Chicago - Polk Data Center | TierPoint | Chicago | operating | - |
| CHI02 (Elk Grove Village) | STACK Infrastructure | Elk Grove Village | operating | - |
| CyrusOne CHI1 | CyrusOne | Aurora | operating | - |
| CyrusOne CHI2 | CyrusOne | Aurora | operating | - |
| Digital Realty ORD11 | Digital Realty | Chicago | operating | - |
| Digital Realty ORD13 | Digital Realty | Franklin Park | operating | - |
| Aligned ORD-02 | Aligned Data Centers | Northlake | operating | - |
| Equinix CH2 | Equinix | Chicago | operating | - |
| Digital Realty CH2 | Digital Realty | Elk Grove Village | operating | - |
| Digital Realty CH3 | Digital Realty | Elk Grove Village | operating | - |
| T5@Chicago | T5 Data Centers | Elk Grove Village | operating | - |
| Equinix CH7 | Equinix | Westmont | operating | - |
| Compass Hoffman Estates Campus | Compass Datacenters | Hoffman Estates | under construction | - |
| OCI US Midwest (Chicago) us-chicago-1 | Oracle | Chicago | operating | - |
| Chicago (350 E Cermak) | HorizonIQ | Chicago | operating | - |
| Edged DeKalb (Project Vector) | Edged (Endeavour Energy) | DeKalb | planned | - |
| Chirisa Technology Park YLO-01 (Volo) | Chirisa Technology Parks (CIM Group) | Volo | operating | - |
| Digital Realty ORD14 | Digital Realty | Franklin Park | operating | - |
| OCI US DoD North (Chicago) us-gov-chicago-1 | Oracle | Chicago | operating | - |
| Prologis Elk Grove Village Data Center | Prologis | Elk Grove Village | operating | - |
| 1547 Chicago (CHIL2, 725 South Wells) | 1547 Critical Systems Realty | Chicago | operating | - |
| Lakeside Technology Center (350 East Cermak) | Digital Realty | Chicago | operating | - |
| US Signal IL01 | US Signal | Chicago | operating | - |
| HorizonIQ Chicago (US-North Central, Franklin Park) | HorizonIQ | Franklin Park | operating | - |
| US Signal IL02 | US Signal | Aurora | operating | - |