Dwyer Instruments distributes float switches, cable float switches, and free-floating level switches. The Flotect float switch supplied by the company operates automatically to indicate tank level, and feature a leak-proof, explosion-proof body. The switch is use to start or stop pumps, open or close valves, and actuate level alarm signals. The Mercoid-brand cable float switch is for simple level control of liquids for filling or drainage reservoirs and tanks.

Chicago Sensor manufactures low level and adjustable, horizontal-mount specialty, and miniature horizontal-mount float switches. The adjustable float switches feature temperature ratings of -10 to 80C or a maximum of 105C - with float diameters from 18mm to 48mm.

Gems Sensors & Controls designs and manufactures small and large-sized float level switches constructed of engineered plastics or alloys. The larger size float switches are for aggressive or ultra pure liquids, corrosive liquids, or water and oils.

Cole Parmer manufactures self-sealing, bent stem, and hinged float switches. Self-sealing types can be vertically or horizontally mounted and are constructed of nylon/nitrile. The hinged switches feature a 1/2" x 1/2" conduit connection, while the bent stem types are constructed of stainless steel and feature maximum operating pressure of 100 psi - with specific gravity of 0.7 and a 24" lead wire.

Grainger distributes Madison, SJE-Rhombus, Dayton, Little Giant, Diversitech, Rule, Lumenite Control Technology Inc., Square D, Levelguard, and PHCC Pro Series-brand float switches.

Omega Engineering designs and distributes horizontal/side mount float switches and vertical mount float switches. The horizontal/side mount switches are used in tanks that have restricted space or inaccessible tops or bottoms. The vertical mount switches are available in compact or industrial designs. Both float switches types can be designed with a variety of measurement mediums.

Schneider Electric designs and manufactures Square D brand float switches available with 2 HP at 115VAC and 3HP at 230 VAC; and as sump, open tank, or closed tank types. These float switches can be floor mounted, pedestal mounted or flange mounted, and are double-pole rated.

Innovative Solutions LLC manufactures multi-level and single-level float switches. The multi-level float switches are available as adjustable suspended, large (to 15 feet), hazardous location, dirty and viscous, or small (to 4 feet) models. The vertical/horizontal single-level float switches are available as stainless steel high temperature, compact alloy, compact and sub-compact models.

Strain Measurement Devices designs and manufactures vertical float switches and side-mounted horizontal float switches. The vertical switches are constructed of stainless steel or plastic, and are available as low level pan, high pressure, and ultra miniature types. The stainless steel horizontal switches are used for corrosion resistance applications and general level detection.

Zoeller Pump Company distributes switch-mate piggyback, variable level float switches that feature maximum operating temperature of 120F or 140F. The switches are for use in 18" minimum diameter basins, and designed for effluent, sewage and dewatering applications.