| J M F Drywall Inc. | 23 | $18,702 | Oct 28, 2022 |
| J Vega's Construction, Inc. | 3 | $6,810 | May 27, 2026 |
| J&D Construction Enterprises, Inc. | 2 | $1,200 | Apr 10, 2015 |
| J&P Masonry Inc. | 4 | $3,840 | Feb 29, 2016 |
| J-Team Construction Corp. | 6 | $5,789 | Sep 14, 2021 |
| J. Fenicks LLC | 6 | $6,810 | Jan 13, 2026 |
| J. Gonzalez Roofing Company | 17 | $26,800 | Mar 11, 2025 |
| J. P. Hopkins Sewer Contractor, Inc. | 1 | $1,421 | Oct 9, 2019 |
| J.C. Construction & Plumbing Co. | 15 | $14,517 | Nov 30, 2023 |
| J.Coto Construction Inc. | 3 | $4,800 | Jun 14, 2024 |
| J.E.M. Traffic Control II Corp. | 7 | $12,235 | Mar 13, 2025 |
| J.L. Construction, Inc. | 3 | $3,326 | Jul 6, 2018 |
| J.M. Quality Construction LLC | 6 | $11,447 | May 20, 2021 |
| J.N.S Construction Corp. II | 7 | $13,000 | May 16, 2023 |
| J.P. Phillips, Inc. | 55 | $94,596 | Oct 26, 2026 |
| J3 Construction, Inc. dba O'Hara's Son Roofing Company | 4 | $10,606 | Jan 5, 2021 |
| Jacek Garbien Construction, Inc. | 2 | $4,048 | May 21, 2020 |
| Jack Hamerski Construction | 2 | $3,741 | Aug 16, 2016 |
| Jack Tuchten Wholesale Produce, Inc. | 3 | $6,903 | Feb 16, 2023 |
| Jack's Construction & Remodeling, Inc. | 9 | $18,800 | Mar 19, 2019 |
| Jacobson Masonry, Inc. | 17 | $20,340 | Mar 14, 2016 |
| Jaime Sanchez dba Jimmy's Construction & Remodeling | 5 | $14,905 | Dec 7, 2023 |
| Jaime Tellez dba Jaime Tellez | 2 | $4,114 | Jul 27, 2017 |
| James McHugh Construction Co. | 145 | $81,286 | Oct 12, 2022 |
| James Walsh dba Walsh Custom Homes, Inc. | 9 | $14,375 | Oct 7, 2020 |
| Janusz Polak dba Pants Masonry Inc. | 4 | $6,940 | Jul 9, 2020 |
| Jarck Industries Inc. dba Erie Brush and Manufacturing Corp. | 1 | $8,500 | Apr 28, 2025 |
| Jaroslaw Wojcik dba Jaro Tuckpointing | 10 | $6,940 | Feb 3, 2020 |
| Jason D. Pham | 3 | $2,021 | Jan 7, 2026 |
| Javier Ramos dba Javier Ramos | 6 | $16,059 | Apr 6, 2017 |
| Jay Gee Wood Products Co., Inc. | 78 | $15,235 | Apr 5, 2018 |
| JC & Son Masonry, Inc. | 19 | $19,034 | Apr 17, 2019 |
| JC Insulation, Inc. | 1 | $7,500 | Jan 22, 2025 |
| JC Recycling of Chicago Inc. | 6 | $17,403 | Sep 16, 2022 |
| JC Roofing | 3 | $7,936 | Mar 9, 2021 |
| JCG Industries Inc. | 4 | $7,000 | Jun 18, 2015 |
| JCG Industries Inc. dba Koch Foods Poultry, Inc. | 3 | $58,197 | Feb 13, 2017 |
| JCP Construction, Inc. | 4 | $13,053 | Apr 12, 2022 |
| Jecash Construction, Inc. | 1 | $4,839 | Feb 27, 2024 |
| Jernberg Industries, LLC | 49 | $26,070 | Jan 28, 2025 |
| Jernberg Industries, LLC dba Aam Metal Forming | 3 | $11,178 | Jul 23, 2018 |
| Jesus Campa dba Jesus Campa Construction | 4 | $9,600 | Jul 22, 2015 |
| Jesus Lopez | 4 | $8,600 | Aug 27, 2015 |
| Jesus Marin | 9 | $12,000 | Feb 12, 2016 |
| Jesus Rangel dba Jesus Rangel | 11 | $18,831 | Jan 30, 2020 |
| Jimenez Pallets, Inc | 1 | $0 | Feb 23, 2017 |
| Jinny Beauty Supply Co., Inc | 3 | $5,950 | Feb 18, 2016 |
| JLJ Development Co. | 5 | $6,800 | Jul 27, 2015 |
| Jlo Metal Products Company, a Corporation | 6 | $9,000 | Jan 14, 2021 |
| JMC Steel Group | 1 | $0 | Jun 9, 2015 |
| JMJ Construction Group, Inc. | 10 | $7,605 | Sep 26, 2017 |
| JMS Electric, Inc. | 3 | $4,260 | Sep 14, 2015 |
| JMS Home Improvement Services, Inc. | 2 | $2,842 | Jun 7, 2019 |
| Joe B Masonry Corp. | 3 | $10,974 | Apr 9, 2025 |
| Joe Battaglini | 4 | $7,000 | Apr 1, 2015 |
| Joe's Masonry, Inc. | 19 | $25,250 | Feb 7, 2024 |
| Joel Kennedy Constructing Corp. | 30 | $109,034 | Apr 8, 2026 |
| Joeski Construction, Inc. | 2 | $3,729 | Dec 1, 2021 |
| Jofc, Inc. | 1 | $0 | Jun 19, 2019 |
| John Burns Construction Company, LLC | 16 | $25,264 | Jul 16, 2026 |
| John Copper Company | 6 | $19,702 | Apr 1, 2019 |
| John Downes Construction, Inc. | 7 | $6,992 | Jun 12, 2025 |
| John Fagan dba John's Masonry, Roofing and Construction LLC | 8 | $3,800 | Jun 8, 2018 |
| John House Doctor Company | 4 | $11,563 | Aug 19, 2022 |
| John W. Trent | 5 | $13,325 | Sep 12, 2018 |
| John's Heating Inc. | 3 | $4,500 | Oct 17, 2018 |
| Johnson Controls | 70 | $52,970 | Dec 17, 2018 |
| Jones & Cleary Roofing Co. | 21 | $34,320 | Jul 1, 2020 |
| Jones & Cleary Sheet Metal, Inc. | 6 | $10,875 | Aug 22, 2024 |
| Jones Architectural Metals, Inc. | 5 | $11,500 | May 23, 2018 |
| Jones Lang Lasalle Americas, Inc. | 12 | $22,920 | Oct 24, 2017 |
| Jones Lang Lasalle Inc. | 5 | $27,653 | May 5, 2021 |
| Jorge Heredia | 3 | $3,803 | Mar 20, 2017 |
| Jose Castellanos dba Castellanos Roofing | 5 | $11,369 | May 20, 2021 |
| Jose Gonzalez dba Jose Gonzalez | 5 | $9,095 | Jun 14, 2023 |
| Jose Miranda dba Jose Miranda | 1 | $4,688 | May 18, 2023 |
| Jose Miranda's Construction dba AM Construction | 7 | $16,450 | Jan 3, 2023 |
| Jose Perez | 11 | $21,639 | Jun 3, 2025 |
| Jose Salazar dba Jose Salazar | 11 | $23,996 | Aug 1, 2022 |
| Jose Valerio dba Jose Valerio | 2 | $4,500 | Apr 22, 2024 |
| Josue Esteban dba Josue Esteban | 1 | $2,486 | Oct 28, 2022 |
| Jovanny Gutierrez dba Jovanny Gutierrez | 3 | $10,230 | Jun 7, 2019 |
| JP1 Construction Inc. | 8 | $14,450 | Aug 23, 2023 |
| JSL Building Restoration Group, Inc. | 4 | $8,000 | Sep 8, 2026 |
| Juan Barrera dba Juan Barrera | 7 | $5,000 | Aug 3, 2021 |
| Juan Espinoza | 4 | $4,445 | Nov 3, 2021 |
| Juan Garcia dba Juan Garcia | 4 | $6,713 | Aug 3, 2016 |
| Juan Martinez | 6 | $11,665 | Oct 15, 2020 |
| Julio Marquez dba J & J | 2 | $4,839 | May 10, 2024 |
| Junk Relief, Inc. | 5 | $6,400 | Sep 11, 2019 |
| JZ Roofing of Chicago, Inc. | 15 | $34,100 | Nov 9, 2020 |
| JZK Development, Inc. | 1 | $3,803 | Jun 2, 2017 |
| K & B Construction and Remodeling, Inc. | 21 | $15,150 | Mar 26, 2015 |
| K & K Iron Works, LLC | 48 | $34,515 | Aug 7, 2015 |
| K Enterprises, Inc. | 13 | $12,450 | Mar 18, 2015 |
| K. Pesantez Remodeling, Inc. | 3 | $4,000 | Jun 2, 2016 |
| K.L.F. Enterprises, Inc. | 40 | $109,838 | Nov 16, 2023 |
| Kadra Masonry, Corp. | 8 | $9,348 | Jun 5, 2017 |
| Kamberos Construction | 4 | $5,600 | Jan 21, 2015 |
| Kaul Glove & MFG. Co. dba Choctaw-Kaul Distribution Company | 3 | $16,783 | Jul 11, 2022 |
| Kazimierz Zubrycki dba Precision Casey Construction Inc. | 11 | $23,180 | Apr 22, 2016 |
| Kazmer Tile & Stone, Inc. | 1 | $1,137 | Jan 16, 2019 |
| Kcom Environmental | 6 | $6,736 | Aug 17, 2016 |
| KCP Metal Fabrications, Inc. | 17 | $21,725 | Mar 4, 2021 |
| KD Steel Services, Inc. | 2 | $7,482 | Aug 30, 2016 |
| Kedmont Waterproofing Co., Inc. | 5 | $3,400 | Apr 29, 2015 |
| Keller-Heartt Company, Inc | 7 | $9,000 | Feb 11, 2016 |
| Kenny Ephraim dba A-J Roofing & Concrete | 4 | $5,500 | May 11, 2017 |
| Kerry Masonry, Inc. | 1 | $9,571 | Apr 18, 2022 |
| Kesek #1 Construction Inc. | 6 | $38,012 | Jun 1, 2021 |
| Key Foods Co. | 3 | $13,000 | May 12, 2022 |
| Keyston Plumbing Company | 3 | $8,413 | Sep 14, 2022 |
| Kiewit Infrastructure Co. | 1 | $5,000 | Dec 12, 2016 |
| Kimpton Hotel & Restaurant Group, LLC | 4 | $17,049 | Sep 10, 2018 |
| Kinsale Contracting Group Inc. | 11 | $15,300 | Nov 9, 2022 |
| KL Service Group Inc. | 2 | $4,080 | Aug 1, 2023 |
| Klak Construction Inc. | 7 | $8,000 | Jul 19, 2021 |
| Klay Construction, Inc. | 6 | $14,300 | Sep 22, 2021 |
| Kloeckner Metals Corporation | 1 | $12,934 | Aug 24, 2026 |
| Klymukh Construction Inc. | 5 | $4,000 | Mar 27, 2019 |
| KM Kerry Masonry, Inc. | 7 | $15,000 | Jun 2, 2015 |
| KM Masonry Services Inc. | 1 | $3,500 | Nov 7, 2024 |
| Kobel Construction Inc. | 14 | $41,312 | Apr 16, 2025 |
| Koch Foods, Inc. | 8 | $18,700 | May 3, 2016 |
| Konmar Construction, Inc. | 4 | $4,900 | Mar 9, 2021 |
| Korellis Roofing Inc | 1 | $12,656 | Nov 21, 2023 |
| Korex Chicago, LLC | 5 | $14,340 | Oct 20, 2026 |
| Kozik General Construction, Inc. | 11 | $23,200 | Aug 31, 2023 |
| KR Tech Group LLC | 2 | $4,147 | Jul 24, 2026 |
| Kramer Tree Specialists, Inc. | 3 | $13,971 | Jan 27, 2025 |
| KRC Construction Corp. | 7 | $10,000 | Nov 21, 2025 |
| KRK Mechanical, Inc. | 2 | $1,995 | Jul 29, 2016 |
| Kroenke, LLC | 1 | $3,803 | May 22, 2018 |
| Kroeschell Engineering Co., Inc. | 15 | $61,930 | Dec 11, 2020 |
| Krugel Cobbles, Inc. | 2 | $9,500 | Apr 15, 2024 |
| Krzysztof Karcz dba Summit Construction | 5 | $9,680 | Jul 31, 2015 |
| L Z Developers, Inc. | 4 | $13,053 | Aug 9, 2022 |
| L. Marshall, Inc. | 45 | $66,604 | Oct 5, 2021 |
| L.K. Precision Tuckpointing Inc. | 11 | $10,700 | Nov 12, 2021 |
| La Rone, Inc. | 23 | $17,900 | Feb 24, 2020 |
| Labodega, Ltd. | 1 | $1,350 | Mar 9, 2020 |
| Labor Solutions-Staff Right, LLC | 1 | $2,500 | May 22, 2018 |
| Lagos General Contractors, Inc | 5 | $3,750 | Nov 20, 2020 |
| Lake Iron Inc. | 28 | $17,897 | Oct 11, 2018 |
| Lake Street Pallet and Recycling, Inc. | 4 | $6,100 | Mar 20, 2026 |
| Lakefront Skilled Nursing Facility, LLC | 5 | $9,948 | Mar 16, 2022 |
| Lakeland Contracting Inc dba Lakeland Exteriors & Roofing | 2 | $2,780 | Mar 9, 2026 |
| Lakeshore Construction Group, Inc. | 15 | $24,306 | Aug 19, 2019 |
| Lakeshore Plumbing, Inc. | 17 | $62,684 | May 25, 2023 |
| Lakeside Masonry Restoration | 3 | $6,028 | Aug 31, 2017 |
| Lakeside Metals, Inc. | 14 | $30,175 | Sep 6, 2023 |
| Lakeview Construction, Inc. | 5 | $7,090 | Dec 22, 2016 |
| Lakin General Corporation | 6 | $11,400 | Aug 26, 2015 |
| Lalo Marraquen | 4 | $6,824 | May 18, 2017 |
| Lamination Specialties LLC | 20 | $39,510 | Jan 10, 2023 |
| Landscapes by Evergreen Inc. | 3 | $2,400 | Feb 29, 2016 |
| Lang Exterior Manufacturing Co. | 2 | $1,148 | Aug 26, 2015 |
| Lapelusa Home Improvement, Inc. | 2 | $4,283 | Mar 2, 2026 |
| Laureate Southview Operations, LLC. | 4 | $6,500 | Aug 10, 2020 |
| LCG Sales, Inc. | 2 | $3,000 | Jan 13, 2015 |
| LDR Global Industries LLC | 4 | $3,298 | Jul 13, 2018 |
| Leaders Roofing Corp. | 2 | $3,460 | Apr 11, 2016 |
| Legacy Underground Corporation | 1 | $2,800 | Aug 25, 2015 |
| Leinster Construction, Inc. | 15 | $23,484 | Aug 18, 2026 |
| Lemon X Corporation dba Bevolution Group | 2 | $6,985 | Feb 13, 2018 |
| Lemonbrat, Inc. | 3 | $3,240 | Oct 1, 2019 |
| Lenart Masonry Inc. | 1 | $2,245 | Jul 29, 2016 |
| Lend Lease (US) Construction Inc. | 3 | $8,000 | Jul 7, 2017 |
| Lendak Masonry, Inc. | 8 | $6,273 | Apr 26, 2019 |
| Leo Garage Doors and Construction | 5 | $13,875 | Jul 21, 2025 |
| Leonard & Son Construction Company Inc. | 1 | $2,611 | May 23, 2022 |
| Leonides Construction, Inc. | 1 | $2,772 | Jul 12, 2018 |
| Level Construction, Inc. | 11 | $18,850 | Sep 10, 2024 |
| Lewellen & Best Displays, Inc. | 2 | $3,360 | May 20, 2015 |
| LG Construction Group LLC | 14 | $46,958 | Apr 27, 2023 |
| LG Development Group LLC | 1 | $1,470 | Nov 4, 2015 |
| Licitra Roofing Inc. | 5 | $11,899 | Apr 10, 2024 |
| Lift Works, Inc. | 2 | $3,880 | Feb 8, 2018 |
| Lime Builders, Inc. | 2 | $3,803 | Jul 18, 2017 |
| Lincoln Provision, Inc. | 1 | $6,984 | Mar 8, 2018 |
| Lineage Logistics PFS, LLC | 2 | $20,597 | Dec 15, 2023 |
| Link Masonry, Inc. | 10 | $12,636 | Jun 17, 2021 |
| Liprus U Masonry, Inc. | 18 | $20,580 | Feb 13, 2026 |
| Lithuanian Catholic Press Society | 3 | $0 | Feb 23, 2016 |
| Little Village Nursing and Rehabilitation Center, LLC | 3 | $9,446 | Jun 8, 2020 |
| Little Village Recycling LLC | 5 | $7,944 | Jan 29, 2026 |
| LKQ Pick Your Part Midwest, LLC | 1 | $15,625 | Nov 16, 2023 |
| LLV Urban Inc. | 3 | $8,296 | Feb 14, 2024 |
| Lock up Irving Park LLC | 3 | $21,000 | Apr 20, 2018 |
| Logan Square Aluminum Supply, Inc. | 8 | $17,800 | Jun 2, 2015 |
| Lojek, Inc. | 1 | $2,716 | Nov 17, 2020 |
| Lolo Masonry and Construction Inc. | 3 | $3,531 | Jun 14, 2017 |
| Lomas Tuckpointing & Masonry LLC | 14 | $31,610 | Dec 30, 2024 |
| Longford Construction Inc. | 2 | $5,000 | May 15, 2026 |
| Lopez Enterprises Chicago Corporation | 3 | $5,227 | May 1, 2024 |
| Lopez Plumbing Systems, Inc. | 14 | $17,481 | Aug 1, 2017 |
| Lorig Construction Company | 89 | $109,318 | Aug 26, 2015 |
| Louis Meskan Brass Foundry, Inc. | 59 | $11,225 | Sep 18, 2019 |
| LS Contracting Group, Inc. | 6 | $23,510 | Nov 1, 2018 |
| LSL Industries, LLC | 1 | $1,195 | Aug 31, 2023 |