| Advanced Environmental Testing & Abatement Inc. | 25 | $3,332 | Jul 13, 2023 |
| Advanced Heat Treat Corporation | 8 | $13,838 | Mar 14, 2022 |
| Allen Memorial Hospital Corporation | 2 | $7,000 | Jul 23, 2024 |
| Alpha Services, Inc | 4 | $0 | Oct 17, 2016 |
| American Eagle Roofing & Coatings, LLC | 2 | $3,349 | May 8, 2024 |
| Aramark Uniform Service | 3 | $1,625 | Mar 18, 2015 |
| Aramark Uniform Services | 6 | $22,791 | Jan 15, 2019 |
| Arends Excavating | 3 | $7,947 | Jun 12, 2023 |
| Bertch Cabinet Manufacturing Inc. | 21 | $43,378 | Sep 26, 2022 |
| Black Hawk Electrical Co | 7 | $9,092 | Mar 9, 2022 |
| Black Hawk Waste Disposal Co. Inc. | 4 | $5,400 | Oct 14, 2016 |
| Blough Dairy Inc | 3 | $2,005 | Dec 17, 2020 |
| Boomerang Corp. | 1 | $1,500 | May 30, 2018 |
| Buffalo Weaver | 1 | $462 | Jul 17, 2018 |
| C & C Welding Inc | 1 | $1,894 | Jul 26, 2019 |
| Casting Cleaning Resources, LLC | 9 | $14,000 | Jun 26, 2023 |
| Cedar Valley Recycling & Transfer | 57 | $59,097 | Jul 14, 2025 |
| Central Middle School - Waterloo Public School District | 3 | $2,316 | Jul 15, 2020 |
| City of Waterloo | 12 | $54,004 | Jul 12, 2023 |
| CMC Control | 3 | $19,500 | Sep 17, 2024 |
| Conagra Brands | 4 | $18,634 | Aug 27, 2025 |
| Core Plastech | 1 | $3,885 | Jun 8, 2022 |
| CPM Acquisition Corp. | 2 | $3,078 | Mar 10, 2021 |
| Credit Bureau Enterprises | 1 | $325 | Mar 1, 2016 |
| Crystal Distribution | 6 | $3,425 | Feb 18, 2020 |
| Crystal Distribution Services, Inc. | 9 | $10,098 | Jun 29, 2020 |
| Custom Blacksmithing & Manufacturing | 9 | $8,000 | Jun 23, 2021 |
| Dan Deery Chrysler Dodge Jeep Ram Fiat | 8 | $13,708 | Jul 13, 2021 |
| Dollar Tree #6655 | 7 | $96,908 | Mar 13, 2018 |
| Dollar Tree Store #1397 | 11 | $24,941 | Mar 20, 2018 |
| Double D Transport LLC | 5 | $0 | Feb 21, 2023 |
| E360 Building Company | 3 | $2,200 | Aug 15, 2018 |
| East Central Iowa Cooperative | 9 | $125,462 | Apr 23, 2019 |
| FBG Facility Services | 1 | $12,055 | Jan 25, 2024 |
| Fortune Brands & Security Inc. | 4 | $8,700 | Mar 8, 2017 |
| Friendship Village | 1 | $797 | Feb 1, 2021 |
| G and R Integration Services Inc | 5 | $21,930 | Dec 5, 2022 |
| Greenway Demolition Services | 12 | $16,500 | Dec 10, 2015 |
| Harris Cleaning Service Inc | 9 | $2,250 | Mar 11, 2025 |
| Hawkeye Steel Products Inc. | 80 | $13,793 | Apr 15, 2019 |
| Home Depot | 1 | $691 | Aug 26, 2020 |
| Hussmann Services Corporation | 1 | $2,341 | Nov 30, 2021 |
| Hydrite Chemical Company | 5 | $13,850 | Mar 3, 2026 |
| Iowa Department of Transportation | 21 | $14,310 | Sep 10, 2025 |
| John Deere | 5 | $10,892 | Jul 21, 2020 |
| John Deere Components Works | 8 | $30,250 | Jul 12, 2017 |
| John Deere Engine Works | 8 | $11,821 | Dec 23, 2025 |
| John Deere Foundry | 26 | $58,048 | Sep 4, 2025 |
| John Deere Waterloo Operations | 14 | $23,870 | Nov 20, 2023 |
| Jsa Development LLC | 5 | $562 | Oct 3, 2017 |
| K & W Electric, Inc. | 26 | $25,338 | Sep 10, 2025 |
| KCNG | 6 | $12,512 | Mar 4, 2024 |
| L J's Welding and Fabrication Inc | 13 | $4,735 | Jun 28, 2019 |
| Larson Construction Company, Inc. | 88 | $77,880 | Jun 14, 2022 |
| Lost Island Waterpark | 2 | $9,000 | May 2, 2022 |
| Masterbrand Cabinets | 12 | $32,952 | Aug 13, 2024 |
| Mercyone Waterloo | 1 | $10,000 | Jul 1, 2019 |
| Mercyone Waterloo Medical Center | 3 | $18,000 | Sep 12, 2025 |
| O'Neal Steel LLC | 6 | $12,678 | Feb 15, 2023 |
| Omega Cabinetry | 22 | $33,875 | Jul 23, 2019 |
| Packers Sanitation Services, Inc., Ltd | 9 | $57,690 | Apr 14, 2025 |
| Peterson Contractors Inc. | 44 | $69,141 | Jun 17, 2025 |
| Premier Casting Services, Inc. | 43 | $32,088 | Feb 28, 2022 |
| Premium Velocity Auto, LLC. | 13 | $40,982 | Nov 14, 2025 |
| Proform Thermal Systems Inc | 1 | $3,030 | Jul 1, 2019 |
| RC Management | 7 | $488 | Oct 3, 2017 |
| Ryder Integrated Logistics, Inc. | 10 | $15,232 | Apr 12, 2023 |
| Schoitz Engineering Inc | 5 | $7,022 | Dec 8, 2021 |
| School Bus Sales Co. | 1 | $6,500 | Dec 15, 2020 |
| Schumacher Elevator Co. Inc. | 16 | $11,995 | Jan 8, 2025 |
| Service Roofing Company | 16 | $2,104 | Aug 9, 2022 |
| Servpro of Black Hawk County | 1 | $0 | Jul 5, 2023 |
| South Construction & Insulation LLC | 9 | $175 | Jan 21, 2021 |
| ST. Vincent de Paul | 1 | $0 | Oct 15, 2018 |
| Steel Center Supply LLC | 1 | $5,000 | Nov 28, 2022 |
| Two Talents Inc. | 2 | $2,500 | Aug 31, 2015 |
| Tyson Fresh Meats Inc. | 102 | $331,590 | Oct 14, 2025 |
| Tyson Prepared Foods | 4 | $9,300 | Jun 22, 2022 |
| Utc Railcar Repair Services LLC | 5 | $30,003 | May 4, 2022 |
| Varsity Cleaners | 10 | $1,625 | Jan 31, 2017 |
| Voss Distributing | 9 | $14,860 | May 18, 2023 |
| Waterloo Processing, LLC | 40 | $289,405 | Jul 11, 2025 |
| Waterloo Warehousing & Service Co | 26 | $34,398 | Aug 31, 2022 |
| Witham Auto Center | 7 | $8,685 | Jan 22, 2018 |
| Young Plumbing and Heating | 27 | $23,254 | Dec 7, 2021 |