NLRB Stats Archive › Annual Reports › FY1958 › Unfair labor practice and representation cases received — by industry
Unfair labor practice and representation cases received — by industry
| Industrial group | All cases | Unfair labor practice cases — All C cases | Unfair labor practice cases — CA cases | Unfair labor practice cases — CB cases | Unfair labor practice cases — CC cases | Unfair labor practice cases — CD cases | Representation cases — All R cases | Representation cases — RC cases | Representation cases — RM cases | Representation cases — RD cases |
|---|---|---|---|---|---|---|---|---|---|---|
| Total | 16,659 | 9,260 | 6,068 | 2,473 | 527 | 192 | 7,399 | 6,284 | 626 | 489 |
| Manufacturing | 9,440 | 4,542 | 3,438 | 944 | 120 | 40 | 4,898 | 4,149 | 390 | 359 |
| Food and kindred products | 1,063 | 601 | 498 | 166 | 21 | 6 | 522 | 390 | 67 | 65 |
| Textile mill products | 337 | 233 | 200 | 32 | 1 | 0 | 104 | 92 | 11 | 1 |
| Primary metal industries | 680 | 220 | 154 | 61 | 2 | 9 | 254 | 217 | 16 | 16 |
| Fabricated metal products (except machinery and transportation equipment) | 898 | 442 | 347 | 86 | 8 | 1 | 456 | 402 | 22 | 32 |
| Machinery (except electrical) | 844 | 362 | 276 | 69 | 14 | 3 | 482 | 391 | 40 | 51 |
| Electrical machinery, equipment, and supplies | 606 | 292 | 216 | 64 | 9 | 3 | 314 | 264 | 18 | 32 |
| Automotive and other transportation equipment | 470 | 242 | 172 | 64 | 3 | 3 | 228 | 210 | 7 | 11 |
| Agriculture, forestry, and fisheries | 4 | 3 | 1 | 0 | 1 | 1 | 1 | 1 | 0 | 0 |
| Mining | 417 | 304 | 250 | 53 | 1 | 0 | 113 | 92 | 12 | 9 |
| Construction | 1,848 | 1,474 | 622 | 673 | 231 | 158 | 374 | 157 | 16 | 1 |
| Wholesale trade | 1,028 | 419 | 230 | 150 | 31 | 8 | 609 | 512 | 47 | 50 |
| Retail trade | 1,428 | 640 | 417 | 156 | 59 | 8 | 788 | 674 | 79 | 35 |
| Finance, insurance, and real estate | 43 | 18 | 15 | 1 | 1 | 1 | 25 | 18 | 4 | 3 |
| Transportation, communication, and other public utilities | 2,033 | 1,424 | 829 | 518 | 63 | 14 | 609 | 512 | 60 | 37 |
| Services | 418 | 236 | 166 | 63 | 5 | 2 | 182 | 170 | 9 | 3 |
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Source data: U.S. NLRB Annual Reports (public domain). Reconstruction by NLRB Stats Archive. Updated June 2026.