Lists sites for businesses that primarily supply bulk materials handling equipment manufactured by another business, or offer a combination of equipment supply, system design, and consultancy services. Businesses that are primarily manufacturers or equipment are not listed here, although integrators may undertake some engineering work as part of an installation process.

Lists sites for businesses that primarily manufacture pneumatic conveying equipment, or associated parts and service. Pneumatic conveying is a materials handling method in which bulk materials, regardless of particle size and shape, are forced along a pipeline by flow of a gas (air in most cases). The particles can be conveyed in suspended state (dilute phase) or "plug" or "slug" state (or dense phase) or in some cases it is also achieved in so called semi dense phase conveying. Pneumatic conveying is also (but rarely) called pneumotransport, although pneumotransport is sometimes applied to pneumatic capsule pipelines. Manufacturers commonly offer both dilute and dense phase based systems. Pneumatic conveying components may include rotary airlocks, diverter valves, conveying eductors (also called venturi), double dump valves and pressure vessels. Sites related to directly associated storage and handling equipment, which form part of a pneumatic conveying system, are also may be listed here.

Lists sites for businesses that primarily manufacture equipment used to hold bulk materials until they are required for another purpose, or provide associated parts and service. Equipment includes items such as silos. Sites related to dust control equipment are listed here if they relate only to bulk materials handling in general. Similar equipment for wider application is listed within Air_Quality or Manufacturing.