Plastics and rubber products here means companies classified under NAICS 326199 (all other plastics product manufacturing), 326291 (rubber product manufacturing for mechanical use) or 326299 (all other rubber product manufacturing): makers of plastic and rubber parts and products. Factur's directory lists 1,287 companies in Michigan under these codes; these are the 25 largest of them by annual revenue, led by Sekisui Kasei Co Ltd ($830M), UFP Technologies Inc ($417M) and Sadara Chemical Co ($371M).
| # | Company | City | Employees | Annual revenue |
|---|---|---|---|---|
| 1 | Sekisui Kasei Co Ltd | — | 3,460 | $830M |
| 2 | UFP Technologies Inc | Newburyport | 3,093 | $417M |
| 3 | Sadara Chemical Co | Al Jubayl | 3,594 | $371M |
| 4 | Sumiriko | Novi | 1,000 | $250M |
| 5 | Ginegar Plastic Products Ltd | Ginnegar | 230 | $163M |
| 6 | Deckorators Inc | Grand Rapids | 500 | $136M |
| 7 | Michigan Rubber Products Inc | Cadillac | 337 | $100M |
| 8 | G&T Industries Inc | Byron Center | 428 | $89M |
| 9 | Vail Rubber Works Inc | Fort Deposit | 109 | $71M |
| 10 | Rimoni Industries Ltd | Berrien Center | 305 | $54M |
| 11 | Proper Group International | Warren | 382 | $52M |
| 12 | Bengal | Coopersville | 367 | $51M |
| 13 | Erwin Quarder Inc | Grand Rapids | 581 | $50M |
| 14 | Eclipse Mold Inc | Chesterfield | 101 | $42M |
| 15 | Wilko Plastics Inc | Romeo | 150 | $41M |
| 16 | Hidro Rubber North America | Rochester | 50 | $36M |
| 17 | Omega Plastics Inc | Knoxville | 109 | $35M |
| 18 | Forteq UK | West Henrietta | 798 | $32M |
| 19 | Green Polymeric Materials Inc | Detroit | 114 | $31M |
| 20 | Dawson Manufacturing Co | Benton Harbor | 100 | $30M |
| 21 | DBI Plastics Ltd | Stenlille | 274 | $28M |
| 22 | Medbio.com | Grand Rapids | 92 | $28M |
| 23 | Rubber Enterprises Inc | Imlay City | 144 | $27M |
| 24 | Kleiberit | Weingarten | 680 | $27M |
| 25 | Hicks Plastics Company Inc | Macomb | 134 | $26M |
Companies are ranked by annual revenue (USD) as recorded on each company's profile in the Factur directory, highest first; companies with the same revenue are ordered by employee count. Only companies with a positive revenue figure on file are ranked, so a large private company with no reported revenue can be missing. The list covers companies whose record places them in Michigan and whose NAICS codes include 326199, 326291 or 326299. 4 companies filed under Michigan but with a headquarters city outside it were left out. Figures are a snapshot of the directory, refreshed when the rankings are regenerated; open a profile for its current data.