Establishments primarily engaged in manufacturing heavy machinery and equipment of a type used primarily by the construction industries, such as bulldozers; concrete mixers; cranes, except industrial plant overhead and truck-type cranes; dredging machinery; pavers; and power shovels. Also included in this industry are establishments primarily engaged in manufacturing forestry equipment and certain specialized equipment, not elsewhere classified, similar to that used by the construction industries, such as elevating platforms, ship cranes and capstans, aerial work platforms, and automobile wrecker hoists. Establishments primarily engaged in manufacturing mining equipment are classified in Industry 3532; those manufacturing well-drilling machinery are classified in Industry 3533; those manufacturing industrial plant overhead traveling cranes are classified in Industry 3536; and those manufacturing industrial truck-type cranes are classified in Industry 3537.
| Aerial work platforms, hydraulic or electric truck or carrier mounted | Mixers: e.g., concrete, ore, sand, slag, plaster, mortar, bituminous |
| Aggregate spreaders | Mortar mixers |
| Asphalt plants, including travel-mix type | Mud jacks |
| Automobile wrecker hoists | Pavers |
| Backfillers, self-propelled | Pile driving equipment |
| Backhoes | Planers, bituminous |
| Ballast distributors (railway track equipment) | Plaster mixers |
| Batching plants, bituminous | Plows, construction: excavating and grading |
| Batching plants, for aggregate concrete and bulk cement | Post hole diggers, powered |
| Blades for graders, scrapers, dozers, and snowplows | Power cranes, draglines, and shovels |
| Breakers, paving | Pulverizers, stone: portable |
| Buckets, excavating: e.g., clamshell, concrete, dragline, drag scraper, shovel | Railway track equipment: e.g., rail layers, ballast distributors |
| Bulldozers, construction | Rakes, land clearing: mechanical |
| Cab, construction machinery | Road construction and maintenance machinery |
| Capstans, ship | Rock crushing machinery, portable |
| Carriers, crane | Rollers, road |
| Chip spreaders, self-propelled | Rollers, sheepsfoot and vibratory |
| Chippers, commercial: brush, limb, and log | Sand mixers |
| Concrete buggies, powered | Scarifiers, road |
| Concrete grouting equipment | Scrapers, construction |
| Concrete gunning equipment | Screeds and screeding machines |
| Concrete plants | Screeners, portable |
| Construction machinery, except mining | Ship cranes and derricks |
| Cranes, construction | Ship winches |
| Cranes, except industrial plant | Shovel loaders |
| Crushers, mineral: portable | Shovels, power |
| Derricks, except oil and gas field | Silos, cement (batch plant) |
| Distributors (construction machinery) | Slag mixers |
| Ditchers, ladder: vertical boom or wheel | Snowplow attachments |
| Dozers, tractor mounted: material moving | Soil compactors: vibratory |
| Draglines, powered | Spreaders and finishers, construction |
| Drags, road (construction and road maintenance equipment) | Subgraders, construction equipment |
| Dredging machinery | Subsoiler attachments, tractor-mounts |
| Excavators: e.g., cable, clamshell, crane, derrick, dragline, power | Surfacers, concrete grinding |
| Extractors, piling | Tampers, powered |
| Finishers and spreaders, construction | Tamping equipment, rail |
| Finishers, concrete and bituminous: powered | Teeth, bucket and scarifier |
| Grader attachments, elevating | Tractors, construction |
| Graders, road (construction machinery) | Tractors, crawler |
| Grapples: rock, wood, etc. | Tractors, tracklaying |
| Grinders, stone: portable | Trenching machines |
| Hammer mills (rock and ore crushing machines), portable | Trucks, off-highway |
| Hammers, pile driving | Vibrators for concrete construction |
| Line markers, self-propelled | Wellpoint systems |
| Locomotive cranes | Winches, all types |
| Log splitters | Work platforms, elevated |
| Logging equipment | |
| Codes |
Titles | Total Marketable US Businesses |
| 35310000 | Construction machinery | 1,432 |
| 35310100 | Forestry related equipment | 32 |
| 35310101 | Chippers: brush, limb, and log | 11 |
| 35310102 | Log splitters | 12 |
| 35310103 | Logging equipment | 24 |
| 35310200 | Marine related equipment | 126 |
| 35310201 | Capstans, ship | 1 |
| 35310202 | Cranes, ship | 8 |
| 35310203 | Ship winches | 3 |
| 35310300 | Railroad related equipment | 29 |
| 35310301 | Ballast distributors | 9 |
| 35310302 | Cranes, locomotive | 7 |
| 35310303 | Laying equipment, rail | 2 |
| 35310304 | Railway track equipment | 19 |
| 35310400 | Bituminous, cement and concrete related products and equip. | 34 |
| 35310401 | Asphalt plant, including gravel-mix type | 65 |
| 35310402 | Batching plants, for aggregate concrete and bulk cement | 18 |
| 35310403 | Bituminous batching plants | 2 |
| 35310404 | Cement silos (batch plant) | 3 |
| 35310405 | Concrete buggies, powered | 3 |
| 35310406 | Concrete grouting equipment | 11 |
| 35310407 | Concrete gunning equipment | 6 |
| 35310408 | Concrete plants | 39 |
| 35310409 | Finishers, concrete and bituminous: powered | 8 |
| 35310410 | Mixers, bituminous | 0 |
| 35310411 | Mixers, concrete | 38 |
| 35310412 | Pavers | 393 |
| 35310413 | Paving breakers | 6 |
| 35310414 | Planers, bituminous | 3 |
| 35310415 | Screeds and screeding machines | 6 |
| 35310416 | Surfacers, concrete grinding | 15 |
| 35310417 | Vibrators for concrete construction | 11 |
| 35310500 | Scrapers, graders, rollers, and similar equipment | 9 |
| 35310501 | Backfillers, self-propelled | 4 |
| 35310502 | Finishers and spreaders (construction equipment) | 18 |
| 35310503 | Graders, road (construction machinery) | 12 |
| 35310504 | Ladder ditchers, vertical boom or wheel | 5 |
| 35310505 | Line markers, self-propelled | 6 |
| 35310506 | Pile drivers (construction machinery) | 7 |
| 35310508 | Rollers, road: steam or other power | 4 |
| 35310509 | Rollers, sheepsfoot and vibratory | 2 |
| 35310511 | Scrapers (construction machinery) | 8 |
| 35310512 | Tampers, powered | 2 |
| 35310600 | Backhoes, tractors, cranes, plows, and similar equipment | 56 |
| 35310601 | Backhoes | 539 |
| 35310602 | Bulldozers (construction machinery) | 34 |
| 35310603 | Crane carriers | 27 |
| 35310604 | Cranes, nec | 101 |
| 35310605 | Dozers, tractor mounted: material moving | 22 |
| 35310606 | Draglines, powered | 3 |
| 35310607 | Dredging machinery | 13 |
| 35310608 | Entrenching machines | 9 |
| 35310609 | Excavators: cable, clamshell, crane, derrick, dragline, etc. | 33 |
| 35310610 | Loaders, shovel: self-propelled | 2 |
| 35310611 | Shovel loaders | 1 |
| 35310613 | Subgraders (construction equipment) | 7 |
| 35310614 | Tractors, construction | 30 |
| 35310615 | Tractors, crawler | 4 |
| 35310616 | Tractors, tracklaying | 5 |
| 35310617 | Trucks, off-highway | 35 |
| 35310618 | Tunneling machinery | 9 |
| 35310700 | Crushers, grinders, and similar equipment | 17 |
| 35310701 | Crushers, portable | 2 |
| 35310702 | Grinders, stone: portable | 4 |
| 35310703 | Hammer mills (rock and ore crushing machines), portable | 9 |
| 35310704 | Mixers, nec: ore, plaster, slag, sand, mortar, etc. | 11 |
| 35310705 | Posthole diggers, powered | 5 |
| 35310706 | Rock crushing machinery, portable | 19 |
| 35310707 | Screeners, portable | 2 |
| 35310708 | Soil compactors: vibratory | 4 |
| 35310709 | Stone pulverizers, portable | 2 |
| 35310800 | Construction machinery attachments | 62 |
| 35310801 | Aggregate spreaders | 11 |
| 35310802 | Backhoe mounted, hydraulically powered attachments | 8 |
| 35310803 | Blades for graders, scrapers, dozers, and snow plows | 32 |
| 35310804 | Bucket or scarifier teeth | 4 |
| 35310805 | Buckets, excavating: clamshell, concrete, dragline, etc. | 29 |
| 35310806 | Cabs, for construction machinery | 8 |
| 35310807 | Drags, road (construction and road maintenance equipment) | 31 |
| 35310808 | Grader attachments, elevating | 1 |
| 35310809 | Grapples: rock, wood, etc. | 6 |
| 35310810 | Plows: construction, excavating, and grading | 89 |
| 35310811 | Rakes, land clearing: mechanical | 11 |
| 35310812 | Snow plow attachments | 30 |
| 35310813 | Subsoiler attachments, tractor mounted | 1 |
| 35310814 | Winches | 17 |
| 35319901 | Aerial work platforms: hydraulic/elec. truck/carrier mounted | 43 |
| 35319902 | Airport construction machinery | 9 |
| 35319903 | Automobile wrecker hoists | 76 |
| 35319904 | Catch basin cleaners | 2 |
| 35319905 | Chip spreaders, self-propelled | 0 |
| 35319906 | Derricks, except oil and gas field | 20 |
| 35319907 | Mud jacks | 4 |
| 35319908 | Road construction and maintenance machinery | 102 |
| 35319909 | Roofing equipment | 65 |
| 35319910 | Wellpoint systems | 5 |
