| Advanced Masonry & Restoration, Inc. | 9 | $7,050 | Apr 4, 2023 |
| Avery Dennison Corporation Fastener Division | 3 | $15,000 | Apr 19, 2016 |
| Beaulac Bros Landscaping LLC | 1 | $1,800 | Jan 22, 2025 |
| Birch Point Paper Products, Inc | 1 | $1,750 | Mar 16, 2015 |
| Bourgeois Wrecking & Excavation, Inc. | 2 | $3,326 | Mar 5, 2018 |
| Boutwell Packaging, LLC | 4 | $13,551 | Aug 15, 2024 |
| Cado Products, Inc. | 2 | $1,658 | Nov 15, 2021 |
| Colantonio Inc. | 28 | $24,145 | Feb 29, 2024 |
| DRS Power Technology, Inc. | 6 | $13,000 | Aug 6, 2018 |
| Dynamic Roofing and Construction Inc. | 3 | $2,500 | Aug 27, 2025 |
| E T & L Corp | 12 | $29,000 | Jul 28, 2026 |
| Elite Construction & Design Inc. | 3 | $6,340 | Jul 23, 2018 |
| Fitchburg City Hall | 1 | $0 | Oct 29, 2025 |
| Fitchburg Department of Public Works | 11 | $0 | Oct 15, 2026 |
| Fitchburg Department of Public Works - Water Division | 5 | $0 | Aug 6, 2026 |
| Fitchburg Kappy's, Inc. | 2 | $7,430 | May 17, 2025 |
| Fitchburg Paperboard | 1 | $9,054 | Apr 3, 2018 |
| Fitchburg Public Schools | 6 | $0 | Jun 13, 2023 |
| Francesco A. Voci JR., P.C. | 11 | $6,160 | Apr 29, 2015 |
| Garden Remedies, Inc. | 6 | $20,510 | Mar 3, 2022 |
| Great Wolf Lodge of New England, LLC | 6 | $19,510 | Mar 6, 2023 |
| Kelley Wood Products, Inc. | 26 | $5,245 | Jul 10, 2026 |
| M.P. Crowley Company, Inc. | 4 | $6,930 | Jul 23, 2018 |
| Mar-Lee Companies, Inc. | 3 | $7,000 | Jun 21, 2016 |
| Mark Wittig Construction | 3 | $14,964 | Sep 6, 2016 |
| Micron Solutions, Inc | 1 | $4,256 | Dec 11, 2025 |
| Mid-Town Favorite Beef, LLC | 2 | $5,802 | Nov 10, 2022 |
| Montachusett Regional Vocational Technical School | 6 | $0 | Dec 16, 2025 |
| New England Builders & Contractors, Inc. | 6 | $7,050 | May 19, 2022 |
| New England Wire Products Inc. | 57 | $79,955 | Jul 24, 2025 |
| New England Wirecloth Company, Inc. | 4 | $6,450 | Aug 5, 2016 |
| Ray Services, Inc. | 3 | $1,860 | Jul 2, 2026 |
| Revolutionary Clinics II, Inc. | 5 | $14,000 | May 23, 2023 |
| Seaboard Folding Box Company, Inc | 70 | $46,828 | Nov 19, 2024 |
| Simonds International, LLC | 42 | $55,595 | Feb 19, 2026 |
| Superior Forklift Repair, Inc. | 3 | $3,600 | Jan 19, 2016 |
| Taylor Davis Landscape & Construction | 4 | $15,187 | Sep 10, 2025 |
| Terratherm, Inc. | 3 | $5,227 | Sep 22, 2017 |
| Tim's Fabricators Inc. | 1 | $2,834 | Feb 4, 2020 |
| United Industrial Roofing Co., Inc | 3 | $6,000 | Mar 11, 2015 |
| Vytek Systems, Inc | 3 | $7,765 | Oct 26, 2018 |