| 3699 | Industrial brooms and brushes, manufacturing | |
| 4520 | Industrial building construction, general contractors | |
| 4520 | Industrial building contractor light | |
| 4520 | Industrial chemical plants, construction | |
| 5149 | Industrial chemicals, wholesale | |
| 3120 | Industrial controls (e.g., push button, selector switches and pilot), manufacturing | |
| 1810 | Industrial cool (suit) clothing, manufacturing | |
| 6592 | Industrial credit company | |
| 7421 | Industrial design consulting services | |
| 7421 | Industrial design services | |
| 7513 | Industrial development assistance, local administration | |
| 6592 | Industrial development bank | |
| 7421 | Industrial development planning service (i.e., urban planning) | |
| 7513 | Industrial development programs, federal administration | |
| 7513 | Industrial development, trade and commerce, provincial administration | |
| 3691 | Industrial diamonds, cut and polished, manufacturing | |
| 3110 | Industrial electrical motor rebuilding | |
| 7421 | Industrial engineering services | |
| 4530 | Industrial equipment installation, contractors | |
| 7129 | Industrial equipment rental and leasing | |
| 7499 | Industrial equipment, contract operator | |
| 5150 | Industrial equipment, wholesale | |
| 4530 | Industrial fencing, erecting | |
| 5150 | Industrial fittings, wholesale | |
| 5150 | Industrial furnaces, kilns and ovens, wholesale | |
| 1810 | Industrial garments, men's and boys', cut and sewn from material owned by others | |
| 1810 | Industrial garments, women's, misses' and girls', cut and sewn from materials owned by others | |
| 5149 | Industrial gases, wholesale | |
| 5110 | Industrial gases, wholesale agents and brokers | |
| 2610 | Industrial glassware and glass products, pressed or blown, made in glass making plants | |
| 2610 | Industrial glassware, made from purchased glass | |
| 4520 | Industrial incinerator construction, general contractors | |
| 7310 | Industrial laboratories (except testing), not manufacturing auxilaries, commercial | |
| 7310 | Industrial laboratories, commercial research (except testing) | |
| 9120 | Industrial labour unions | |
| 7421 | Industrial land use planning services | |
| 9301 | Industrial launderers | |
| 3150 | Industrial lighting fixtures, electric, manufacturing | |
| 6592 | Industrial loan companies, nondepository | |
| 3520 | Industrial locomotives and parts, manufacturing | |