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602 manufacturing — heavy employers in Michigan 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 Michigan employers.
| Company | Industry | Plan type | Participants | Latest filing | Broker comp |
|---|---|---|---|---|---|
| AVASURE OPCO HOLDINGS, INC. | Manufacturing — Heavy | Self-funded | 232 | 2022 | Disclosed |
| DENSO AIR SYSTEMS MICHIGAN, INC. | Manufacturing — Heavy | Self-funded | 232 | 2024 | Disclosed |
| FLINT BOXMAKERS, INC. | Manufacturing — Heavy | Fully insured | 232 | 2024 | Disclosed |
| HILITE INDUSTRIES, INC. | Manufacturing — Heavy | Self-funded | 232 | 2024 | Disclosed |
| BRITTEN, INC. | Manufacturing — Heavy | Self-funded | 230 | 2024 | Disclosed |
| DEPATIE FLUID POWER COMPANY | Manufacturing — Heavy | Self-funded | 229 | 2024 | Disclosed |
| MAG AUTOMOTIVE LLC | Manufacturing — Heavy | Self-funded | 228 | 2025 | Disclosed |
| COMFORT RESEARCH, LLC | Manufacturing — Heavy | Self-funded | 228 | 2025 | Disclosed |
| ACUTEX, INC. | Manufacturing — Heavy | Self-funded | 227 | 2025 | Disclosed |
| MPI ENGINEERED TECHNOLOGIES, LLC | Manufacturing — Heavy | Self-funded | 226 | 2025 | Disclosed |
| SKILLED MANUFACTURING, INC. | Manufacturing — Heavy | Self-funded | 224 | 2024 | Disclosed |
| WOODWORTH, INC. | Manufacturing — Heavy | Self-funded | 221 | 2024 | Disclosed |
| DEWYS MANUFACTURING, INC. | Manufacturing — Heavy | Self-funded | 221 | 2024 | Disclosed |
| BRAZEWAY, LLC | Manufacturing — Heavy | Self-funded | 220 | 2024 | Disclosed |
| ADVANCE TURNING AND MANUFACTURING | Manufacturing — Heavy | Self-funded | 220 | 2025 | Disclosed |
| LINN PRODUCTS, INC. | Manufacturing — Heavy | Self-funded | 220 | 2025 | Disclosed |
| STEEL INDUSTRIES INC. | Manufacturing — Heavy | Self-funded | 220 | 2024 | Disclosed |
| K & S SERVICES, INC | Manufacturing — Heavy | Self-funded | 219 | 2024 | Disclosed |
| SPECIALTY STEEL TREATING, INC. | Manufacturing — Heavy | Self-funded | 217 | 2025 | Disclosed |
| WOLVERINE ADVANCED MATERIALS LLC | Manufacturing — Heavy | Fully insured | 214 | 2025 | Disclosed |
| GALCO INDUSTRIAL ELECTRONICS, INC. | Manufacturing — Heavy | Self-funded | 214 | 2025 | Disclosed |
| PARAGON METALS, LLC | Manufacturing — Heavy | Self-funded | 213 | 2025 | Disclosed |
| HUDSON INDUSTRIES, INC. | Manufacturing — Heavy | Self-funded | 212 | 2025 | Disclosed |
| IMI HOLDING CORP. | Manufacturing — Heavy | Fully insured | 212 | 2025 | Disclosed |
| PHOENIX COMPOSITE SOLUTIONS LLC | Manufacturing — Heavy | Fully insured | 212 | 2024 | Disclosed |
| AEES INC. DBA PKC GROUP | Manufacturing — Heavy | Self-funded | 210 | 2025 | Disclosed |
| FUTURAMIC TOOL & ENGINEERING CO. | Manufacturing — Heavy | Self-funded | 210 | 2024 | Disclosed |
| QUALITY SPRING/TOGO, INC. | Manufacturing — Heavy | Self-funded | 210 | 2024 | Disclosed |
| VEONEER US SAFETY SYSTEMS, LLC | Manufacturing — Heavy | Self-funded | 210 | 2025 | Disclosed |
| TRANS-MATIC MFG. CO., INC. | Manufacturing — Heavy | Self-funded | 208 | 2025 | Disclosed |
| ADVANTAGE SINTERED METALS, INC. | Manufacturing — Heavy | Self-funded | 208 | 2025 | Disclosed |
| HEAT TREATING SERVICES CORPORATION OF AMERICA | Manufacturing — Heavy | Self-funded | 207 | 2023 | Disclosed |
| BLM GROUP USA CORPORATION (ERISA) | Manufacturing — Heavy | Self-funded | 207 | 2024 | Disclosed |
| MICHIGAN PRODUCTION MACHINING, INC. | Manufacturing — Heavy | Fully insured | 206 | 2025 | Disclosed |
| GIL-MAR MANUFACTURING COMPANY | Manufacturing — Heavy | Self-funded | 206 | 2024 | Disclosed |
| SAFARI CIRCUITS, INC. | Manufacturing — Heavy | Self-funded | 203 | 2021 | Disclosed |
| RECAR, INC. | Manufacturing — Heavy | Self-funded | 203 | 2025 | Disclosed |
| HARBOR INDUSTRIES, INC | Manufacturing — Heavy | Self-funded | 202 | 2025 | Disclosed |
| HOWARD MILLER COMPANY | Manufacturing — Heavy | Self-funded | 201 | 2023 | Disclosed |
| GLASTENDER, INC | Manufacturing — Heavy | Self-funded | 201 | 2024 | Disclosed |
| LAKEPARK INDUSTRIES OF INDIANA, INC. | Manufacturing — Heavy | Self-funded | 201 | 2025 | Disclosed |
| WELDING TECHNOLOGY CORP | Manufacturing — Heavy | Self-funded | 200 | 2025 | Disclosed |
| NLB CORPORATION | Manufacturing — Heavy | Self-funded | 200 | 2025 | Disclosed |
| FINDLAY PRODUCTS CORP. | Manufacturing — Heavy | Self-funded | 200 | 2025 | Disclosed |
| FM SYLVAN, INC. | Manufacturing — Heavy | Fully insured | 199 | 2025 | Disclosed |
| ROSS OPERATING VALVE COMPANY | Manufacturing — Heavy | Self-funded | 199 | 2025 | Disclosed |
| FEDERAL SCREW WORKS | Manufacturing — Heavy | Fully insured | 198 | 2025 | Disclosed |
| PROGRESSIVE SURFACE, INC. | Manufacturing — Heavy | Self-funded | 198 | 2025 | Disclosed |
| UTICA SERVICES LLC | Manufacturing — Heavy | Self-funded | 198 | 2025 | Disclosed |
| BMT AEROSPACE USA, INC. | Manufacturing — Heavy | Self-funded | 196 | 2025 | Disclosed |
| DOWDING INDUSTRIES INC | Manufacturing — Heavy | Self-funded | 196 | 2025 | Disclosed |
| PREMIER THERMAL SOLUTIONS, LLC | Manufacturing — Heavy | Fully insured | 196 | 2022 | Disclosed |
| MAXITROL COMPANY | Manufacturing — Heavy | Self-funded | 194 | 2025 | Disclosed |
| SCHALLER CORPORATION | Manufacturing — Heavy | Fully insured | 194 | 2025 | Disclosed |
| MICHIGAN TUBE SWAGERS & FABRICATORS INC FABRICATORS, INC. | Manufacturing — Heavy | Self-funded | 193 | 2023 | Disclosed |
| FIRSTRONIC, LLC | Manufacturing — Heavy | Fully insured | 192 | 2022 | Disclosed |
| FRIMO, INC. | Manufacturing — Heavy | Fully insured | 192 | 2021 | Disclosed |
| OAKLEY INDUSTIRES SUB ASSEMBLY DIVISION, INC. | Manufacturing — Heavy | Self-funded | 190 | 2025 | Disclosed |
| ARCELORMITTAL TAILORED BLANKS | Manufacturing — Heavy | Self-funded | 188 | 2025 | Disclosed |
| ND DEFENSE, LLC | Manufacturing — Heavy | Self-funded | 188 | 2025 | Disclosed |
| LIGHT METALS CORPORATION | Manufacturing — Heavy | Self-funded | 188 | 2025 | Disclosed |
| SUPERIOR EXTRUSION INC | Manufacturing — Heavy | Self-funded | 188 | 2025 | Disclosed |
| FULLERTON TOOL COMPANY | Manufacturing — Heavy | Fully insured | 186 | 2024 | Disclosed |
| ULTIMATE HYDROFORMING, INC | Manufacturing — Heavy | Self-funded | 186 | 2024 | Disclosed |
| TERRYBERRY COMPANY LLC | Manufacturing — Heavy | Self-funded | 185 | 2024 | Disclosed |
| METAL FLOW CORPORATION | Manufacturing — Heavy | Self-funded | 185 | 2025 | Disclosed |
| SUPERIOR CONTROLS, INC. | Manufacturing — Heavy | Self-funded | 185 | 2024 | Disclosed |
| TECUMSEH PRODUCTS COMPANY | Manufacturing — Heavy | Self-funded | 183 | 2024 | Disclosed |
| AMERICAN SEATING COMPANY | Manufacturing — Heavy | Self-funded | 183 | 2024 | Disclosed |
| IONBOND LLC | Manufacturing — Heavy | Self-funded | 182 | 2025 | Disclosed |
| LYON GEAR & MACHINE, INC. | Manufacturing — Heavy | Fully insured | 181 | 2025 | Disclosed |
| RSDC OF MICHIGAN LLC | Manufacturing — Heavy | Fully insured | 181 | 2022 | Disclosed |
| FOMCORE, LLC | Manufacturing — Heavy | Fully insured | 180 | 2024 | Disclosed |
| BLACKMER DIVISION OF DOVER ENERGY, INC. | Manufacturing — Heavy | Fully insured | 180 | 2024 | Disclosed |
| WAYNE WIRE CLOTH PRODUCTS INC. | Manufacturing — Heavy | Fully insured | 179 | 2025 | Disclosed |
| MOELLERING HOLDINGS, INC. | Manufacturing — Heavy | Self-funded | 179 | 2025 | Disclosed |
| EATON AUTOMATED TRANSMISSION TECHNOLOGIES LLC | Manufacturing — Heavy | Fully insured | 179 | 2025 | Disclosed |
| CASE SYSTEMS, INC. | Manufacturing — Heavy | Self-funded | 178 | 2025 | Disclosed |
| EAGLE INDUSTRIES, INC. | Manufacturing — Heavy | Self-funded | 178 | 2024 | Disclosed |
| REXAIR, LLC | Manufacturing — Heavy | Self-funded | 177 | 2025 | Disclosed |
| INCOE CORPORATION | Manufacturing — Heavy | Self-funded | 176 | 2024 | Disclosed |
| TOMPKINS PRODUCTS INC | Manufacturing — Heavy | Fully insured | 176 | 2024 | Disclosed |
| 1271 ASSOCIATES, INC | Manufacturing — Heavy | Fully insured | 175 | 2025 | Disclosed |
| SAFARI CIRCUITS, LLC | Manufacturing — Heavy | Self-funded | 175 | 2025 | Disclosed |
| WASHERS, INC. | Manufacturing — Heavy | Self-funded | 174 | 2025 | Disclosed |
| AWTEC USA, INC. | Manufacturing — Heavy | Self-funded | 174 | 2022 | Disclosed |
| MICHIGAN SEAMLESS TUBE LLC | Manufacturing — Heavy | Fully insured | 173 | 2025 | Disclosed |
| PIPP MOBILE STORAGE SYSTEMS, INC | Manufacturing — Heavy | Self-funded | 173 | 2025 | Disclosed |
| STANT USA CORP | Manufacturing — Heavy | Self-funded | 173 | 2025 | Disclosed |
| ASSOCIATED SPRING US, LLC | Manufacturing — Heavy | Self-funded | 173 | 2025 | Disclosed |
| AIR LIFT COMPANY | Manufacturing — Heavy | Self-funded | 172 | 2025 | Disclosed |
| MIDWAY PRODUCTS GROUP, INC. | Manufacturing — Heavy | Self-funded | 172 | 2025 | Disclosed |
| J-STAR MOTION CORPORATION | Manufacturing — Heavy | Fully insured | 172 | 2025 | Disclosed |
| WITZENMANN | Manufacturing — Heavy | Self-funded | 171 | 2024 | Disclosed |
| BECKER ORTHOPEDIC APPLIANCE COMPANY | Manufacturing — Heavy | Fully insured | 170 | 2025 | Disclosed |
| GREAT LAKES CASTINGS, LLC | Manufacturing — Heavy | Fully insured | 169 | 2025 | Disclosed |
| R. A. MILLER INDUSTRIES INC. | Manufacturing — Heavy | Self-funded | 169 | 2025 | Disclosed |
| HURON VALLEY STEEL CORPORATION | Manufacturing — Heavy | Fully insured | 169 | 2024 | Disclosed |
| DIMPLEX THERMAL SOLUTIONS | Manufacturing — Heavy | Self-funded | 169 | 2025 | Disclosed |
| GNUTTI CARLO USA, INC. | Manufacturing — Heavy | Self-funded | 168 | 2025 | 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.