The Blue Book record
America's industrial directory, now read by AI too
Every US industrial company in the record is listed under one or more of these 3,224 categories. Choose one below to see how AI assistants answer buyers looking for a supplier in it, state by state.
New here? See how we measure AI visibility before you search the record below.
The record, by the numbers
Companies listed536,645
Industry categories3,224
Index cells published33
Category directory
3,224
marks a category with a published Index report for at least one state.
H
- Harvesting Equipment5
- Hastelloy Products & Services193
- Hatchets16
- Hay & Forage Farms117
- Hay Balers52
- Hazardous & Regulated Waste Containers306
- Hazardous Materials Storage Buildings246
- Hazardous Waste Management Assessment Services227
- Hazmat & Contamination Protective Suits0
- Heart Valves20
- Heat Exchanger & Condenser Tubes197
- Heat Exchanger Design Services103
- Heat Exchanger Repair Services198
- AI visibility measured.Heat Exchangers1,032
- Heat Pumps75
- Heat Resistant Products1,785
- Heat Shrink Tubing78
- Heat Transfer & Process Equipment157
- Heat Transfers & Decals60
- Heat Treating Equipment & Supplies723
- Heat Treating Services & Supplies593
- Heated & Specialty Industrial Jackets13
- Heater Rental92
- Heating, Cooling & Heat Exchanger Coils332
- Heavy Capacity & Vehicle Scales135
- Heavy Construction Equipment1,638
- Heavy Duty, Gate & Vehicle Hinges107
- Heavy Equipment Moving & Rigging97
- Heavy Hauling Services105
- High Performance & Protective Fabrics372
- High Shear & Homogenizing Mixers84
- High Temperature & Refractory Insulation213
- Highway & Street Construction Contractors270
- Highway & Street Construction Services569
- Hoist Parts & Accessories49
- Hoisting & Lifting Chains147
- Hoisting Rings & Outfits31
- Hoisting, Winching & Material Handling Equipment113
- Hollow Mills9
- Hose Fittings, Couplings & Clamps2,021
- Hospital & Institutional Garments24
- Hospital & Medical Apparel90
- Hospital Furniture & Patient Handling Equipment233
- Hospitality & Institutional Supplies95
- Hot Rolled Steel Plate75
- Hot Runner Systems & Injection Molds77
- Hotel & Motel Construction110
- Hotel & Motel Supplies84