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476 manufacturing — heavy employers in Illinois have substantive broker records on their Form 5500 filings. Median disclosed broker cost in this group runs about $20 per participant per month. Open any company to see its broker of record, disclosed compensation, and benefit lines — or step back to all Illinois employers.
| Company | Industry | Plan type | Participants | Latest filing | Broker comp |
|---|---|---|---|---|---|
| ROCKNEL FASTENER, INC. | Manufacturing — Heavy | Self-funded | 111 | 2025 | Disclosed |
| YETTER MANUFACTURING COMPANY | Manufacturing — Heavy | Self-funded | 111 | 2024 | Disclosed |
| MEGA MANUFACTURING, INC. | Manufacturing — Heavy | Fully insured | 111 | 2025 | Disclosed |
| HA-INTERNATIONAL, LLC | Manufacturing — Heavy | Self-funded | 111 | 2025 | Disclosed |
| METALS TECHNOLOGY CORPORATION | Manufacturing — Heavy | Fully insured | 110 | 2024 | Disclosed |
| SHARP NEC DISPLAY SOLUTIONS OF AMERICA INC. | Manufacturing — Heavy | Self-funded | 110 | 2023 | Disclosed |
| PNC, INC. | Manufacturing — Heavy | Self-funded | 109 | 2025 | Disclosed |
| HIWIN CORPORATION | Manufacturing — Heavy | Self-funded | 109 | 2025 | Disclosed |
| ACC ELECTRONIX, INC | Manufacturing — Heavy | Self-funded | 109 | 2024 | Disclosed |
| MCNISH, LLC | Manufacturing — Heavy | Self-funded | 108 | 2024 | Disclosed |
| CHICAGO BLOWER CORPORATION | Manufacturing — Heavy | Self-funded | 108 | 2025 | Disclosed |
| CAST PRODUCTS INC | Manufacturing — Heavy | Fully insured | 108 | 2024 | Disclosed |
| STERLING SPRING LLC | Manufacturing — Heavy | Fully insured | 107 | 2025 | Disclosed |
| CHICAGO HARDWARE & FIXTURE COMPANY | Manufacturing — Heavy | Self-funded | 106 | 2024 | Disclosed |
| KOMAX CORP | Manufacturing — Heavy | Fully insured | 105 | 2025 | Disclosed |
| JENNER AG, INC. | Manufacturing — Heavy | Fully insured | 105 | 2024 | Disclosed |
| JESSUP MANUFACTURING COMPANY | Manufacturing — Heavy | Self-funded | 104 | 2025 | Disclosed |
| BEST CUTTING DIE | Manufacturing — Heavy | Self-funded | 104 | 2025 | Disclosed |
| EAGLE WINGS INDUSTRIES INC. | Manufacturing — Heavy | Self-funded | 104 | 2022 | Disclosed |
| ICEBERG ENTERPRISES, LLC | Manufacturing — Heavy | Self-funded | 104 | 2024 | Disclosed |
| U.S. HOSE CORP. | Manufacturing — Heavy | Fully insured | 103 | 2024 | Disclosed |
| C. CRETORS & CO. | Manufacturing — Heavy | Self-funded | 103 | 2024 | Disclosed |
| STRANGE ENGINEERING | Manufacturing — Heavy | Self-funded | 103 | 2024 | Disclosed |
| BEM MOLD, INC | Manufacturing — Heavy | Fully insured | 103 | 2024 | Disclosed |
| WESTELL, INC. | Manufacturing — Heavy | Fully insured | 102 | 2025 | Disclosed |
| CLIFFORD-JACOBS FORGING COMPANY | Manufacturing — Heavy | Fully insured | 102 | 2025 | Disclosed |
| ANDERSON LOCK COMPANY, LTD | Manufacturing — Heavy | Self-funded | 101 | 2025 | Disclosed |
| THE IFH GROUP, INC. | Manufacturing — Heavy | Self-funded | 101 | 2025 | Disclosed |
| RACK BUILDERS, INC. | Manufacturing — Heavy | Self-funded | 100 | 2024 | Disclosed |
| NORIX GROUP, INC. | Manufacturing — Heavy | Fully insured | 100 | 2024 | Disclosed |
| DECATUR FOUNDRY INC | Manufacturing — Heavy | Fully insured | 100 | 2021 | Disclosed |
| AUTO METER PRODUCTS, INC. | Manufacturing — Heavy | Self-funded | 98 | 2025 | Disclosed |
| BRONSON & BRATTON, INC. AND AFFILIATES | Manufacturing — Heavy | Self-funded | 98 | 2021 | Disclosed |
| ELGIN POWER AND SEPARATION SEPARATION SOLUTIONS | Manufacturing — Heavy | Self-funded | 97 | 2023 | Disclosed |
| LYON & HEALY CORPORATION | Manufacturing — Heavy | Fully insured | 97 | 2024 | Disclosed |
| MANDEL METALS, INC. | Manufacturing — Heavy | Fully insured | 97 | 2024 | Disclosed |
| QUALITY METAL PRODUCTS, INC. | Manufacturing — Heavy | Self-funded | 97 | 2025 | Disclosed |
| BRENNAN EQUIPMENT & MANUFACTURING, INC. | Manufacturing — Heavy | Fully insured | 94 | 2021 | Disclosed |
| D & K GROUP INC. | Manufacturing — Heavy | Fully insured | 94 | 2024 | Disclosed |
| KB MACHINES US HOLDINGS LLC DBA KELLENBERGER | Manufacturing — Heavy | Self-funded | 94 | 2025 | Disclosed |
| STERNBERG LIGHTING | Manufacturing — Heavy | Fully insured | 93 | 2022 | Disclosed |
| THE BEDDING GROUP, INC. | Manufacturing — Heavy | Fully insured | 93 | 2022 | Disclosed |
| REGAL CUTTING TOOLS, INC. | Manufacturing — Heavy | Self-funded | 92 | 2025 | Disclosed |
| E. H. BAARE CORPORATION | Manufacturing — Heavy | Self-funded | 92 | 2023 | Disclosed |
| KOCIS BROTHERS MACHINE COMPANY ATTN LOUIS KOCSIS | Manufacturing — Heavy | Self-funded | 91 | 2021 | Disclosed |
| SUREWAY GROUP, INC. | Manufacturing — Heavy | Self-funded | 91 | 2023 | Disclosed |
| QUALITAS MANUFACTURING INC. | Manufacturing — Heavy | Self-funded | 89 | 2024 | Disclosed |
| LW SCHNEIDER, INC. | Manufacturing — Heavy | Self-funded | 88 | 2024 | Disclosed |
| UNION SPECIAL LLC | Manufacturing — Heavy | Self-funded | 87 | 2021 | Disclosed |
| SEMS AND SPECIALS, INC. | Manufacturing — Heavy | Fully insured | 87 | 2025 | Disclosed |
| CERATIZIT USA | Manufacturing — Heavy | Self-funded | 84 | 2024 | Disclosed |
| MERCURY PRODUCTS CORP. | Manufacturing — Heavy | Self-funded | 82 | 2025 | Disclosed |
| BBS AUTOMATION CHICAGO, INC. | Manufacturing — Heavy | Fully insured | 80 | 2021 | Disclosed |
| VISIONARY SLEEP, LLC | Manufacturing — Heavy | Self-funded | 80 | 2022 | Disclosed |
| PARR INSTRUMENT COMPANY | Manufacturing — Heavy | Self-funded | 79 | 2022 | Disclosed |
| MJ CELCO, INC. | Manufacturing — Heavy | Fully insured | 79 | 2021 | Disclosed |
| SIEMENS MANUFACTURING CO., INC. | Manufacturing — Heavy | Self-funded | 79 | 2024 | Disclosed |
| PLEWS, INC. | Manufacturing — Heavy | Self-funded | 77 | 2021 | Disclosed |
| BETTER4, LLC | Manufacturing — Heavy | Self-funded | 75 | 2025 | Disclosed |
| LEISURE PROPERTIES LLC | Manufacturing — Heavy | Self-funded | 74 | 2024 | Disclosed |
| LA MARCHE MFG. CO. | Manufacturing — Heavy | Fully insured | 71 | 2025 | Disclosed |
| ONSITE WOODWORK CORPORATION | Manufacturing — Heavy | Self-funded | 71 | 2025 | Disclosed |
| XENIA MFG INC | Manufacturing — Heavy | Fully insured | 58 | 2021 | Disclosed |
| IRONCLAD ENERGY PARTNERS, LLC | Manufacturing — Heavy | Self-funded | 57 | 2021 | Disclosed |
| FREIGHTCAR AMERICA, INC. | Manufacturing — Heavy | Self-funded | 55 | 2021 | Disclosed |
| TOMENSON MACHINE WORKS, INC. | Manufacturing — Heavy | Fully insured | 44 | 2021 | Disclosed |
| PULSAFEEDER, INC., A UNIT OF IDEX CORPORATION | Manufacturing — Heavy | Self-funded | 27 | 2025 | Disclosed |
| TUTHILL CORPORATION | Manufacturing — Heavy | Self-funded | 12 | 2022 | Disclosed |
| LIQUID CONTROLS, LLC | Manufacturing — Heavy | Fully insured | 9 | 2021 | Disclosed |
| CARMODY WORT GROUP LLC | Manufacturing — Heavy | Fully insured | 8 | 2022 | Disclosed |
| ROSS AMBUEHL INC. | Manufacturing — Heavy | Self-funded | 2 | 2025 | Disclosed |
| INVENSYS INC. | Manufacturing — Heavy | Self-funded | — | 2024 | Disclosed |
| PROGRESS RAIL LOCOMOTIVE INC | Manufacturing — Heavy | Self-funded | — | 2021 | Disclosed |
| GENERATION BRANDS, LLC | Manufacturing — Heavy | Self-funded | — | 2021 | Disclosed |
| GEREMARIE CORPORATION | Manufacturing — Heavy | Fully insured | — | 2021 | Disclosed |
| EDECO, LLC | Manufacturing — Heavy | Fully insured | — | 2021 | Disclosed |
Sourced from Form 5500 filings as submitted to the U.S. Department of Labor. Dataset refreshed October 7, 2026. Plan years are labeled by the year they begin, so a July 2024 – June 2025 plan year is 2024. Filings may lag 12–18 months behind the current plan year.