These companies manufacture internet of things- (IOT) enabled meters for measuring the flow of electricity, water and natural gas.

These companies manufacture conveyor systems that are incorporated in to industrial equipment, such as gravity conveyors, trolly conveyors, pneumatic tube conveyors, farm conveyors, and belt conveyors and sell directly to their customers. These systems are usually a part of an assembly or product line.

These companies invest in various types of businesses. They typically do so by purchasing and holding large stakes in various types of businesses. However, they often shift constituents and can sometimes be characterized by their tendency to buy and sell smaller companies on a relatively quick time scale.

These companies manufacture protective clothing for public and private sector workers (generally in manufacturing, construction, or transit) and sell them through wholesalers or distributors.

These companies invest in various types of businesses. They typically do so by purchasing and holding large stakes in various types of businesses. However, they often shift constituents and can sometimes be characterized by their tendency to buy and sell smaller companies on a relatively quick time scale.

These companies manufacture diversified metal equipment components and sell directly to their customers. Examples include car locks, copper foil for circuit boards, metal alloys for batteries, steel, well tubing, etc.

These companies manufacture HVAC (heating, ventilation, and air conditioning) systems for commercial and residential real estate and sell them through retail stores that they do not operate.