Cummins Inc. designs, manufactures, distributes, and services diesel and natural gas engines, electric and hybrid powertrains, and related components worldwide. It operates through five segments: Engine, Distribution, Components, Power Systems, and Accelera. The company offers diesel and natural gas-powered engines under the Cummins and other customer brands for the heavy and medium-duty truck, bus, recreational vehicle, light-duty automotive, construction, mining, marine, rail, oil and gas, defense, and agricultural markets; and offers parts and services, as well as remanufactured parts and engines. It provides power generation systems, horsepower engines, heavy and medium duty engines, application engineering services, custom-designed assemblies, retail and wholesale aftermarket parts, and in-shop and field-based repair services. In addition, the company offers emission solutions; turbochargers; air and fuel filters, fuel water separators, lube and hydraulic filters, coolants, fuel additives, and other filtration systems; and electronic control modules, sensors, and supporting software, as well as new, replacement, and remanufactured fuel systems. Further, it provides automated transmissions; standby and prime power generators, controls, paralleling systems, and transfer switches, as well as A/C generator/alternator products under the Stamford and AVK brands; and electrified power systems with components and subsystems, including battery, fuel cell, and hydrogen production technologies. Additionally, it offers filtration, aftertreatment, controls systems, air handling systems, and electric power generation systems, and batteries. It sells its products to original equipment manufacturers, distributors, dealers, and other customers. The company was formerly known as Cummins Engine Company and changed its name to Cummins Inc. in 2001. Cummins Inc. was founded in 1919 and is headquartered in Columbus, Indiana.

Donaldson Company, Inc. manufactures and sells filtration systems and replacement parts worldwide. The company operates through three segments: Mobile Solutions, Industrial Solutions, and Life Sciences. The Mobile Solutions segment provides replacement filters for air and liquid filtration applications, such as air filtration systems, fuel, lube and hydraulic systems, emissions systems and sensors, indicators, and monitoring systems. This segment sells its products to original equipment manufacturers (OEMs) in the construction, mining, agriculture, and transportation markets; and to independent distributors, and OEM dealer networks. The Industrial Solutions segment offers dust, fume, and mist collectors; compressed air and industrial gasses purification systems; and hydraulic and lubricated rotating equipment applications, as well as gas and liquid filtration for industrial processes and connected services. This segment sells its products to various distributors, OEMs, and end-users. The Life Sciences segment provides micro-environment gas and liquid filtration for food, beverage, and industrial processes; bioprocessing equipment, that includes bioreactors and fermenters; and bioprocessing consumables, such as chromatography devices, reagents and filters, and polytetrafluoroethylene membrane-based products, as well as specialized air and gas filtration systems for applications, including hard disk drives, semi-conductor manufacturing and sensors, battery systems, and powertrain components to OEMs and various end-users. The company was founded in 1915 and is headquartered in Bloomington, Minnesota.

Tennant Company, together with its subsidiaries, designs, manufactures, and markets floor cleaning equipment in the Americas, Europe, the Middle East, Africa, and the Asia Pacific. The company offers a suite of products, including floor maintenance and cleaning equipment, detergent-free and other sustainable cleaning technologies, aftermarket parts and consumables, equipment maintenance and repair services, and asset management solutions. It provides business solutions, such as financing, rental, and leasing programs, as well as machine-to-machine asset management solutions. The company offers its products under the Tennant, Nobles, Alfa Uma Empresa Tennant, IPC, Gaomei, and Rongen brands, as well as private-label brands. Its products are used in retail establishments and distribution centers; factories and warehouses; and public venues, such as arenas and stadiums, office buildings, schools and universities, hospitals and clinics, and other environments. The company markets its products to contract cleaners and businesses through direct sales and service organizations, as well as through a network of authorized distributors. Tennant Company was founded in 1870 and is headquartered in Eden Prairie, Minnesota.

Astec Industries, Inc. designs, engineers, manufactures, and markets equipment and components used primarily in road building and related construction activities worldwide. The company operates in two segments, Infrastructure Solutions and Materials Solutions. The Infrastructure Solutions segment offers asphalt plants and related components, heaters, concrete dust control systems, asphalt pavers, vaporizers, concrete material handling systems, screeds, heat recovery units, paste back-fill plants, asphalt storage tanks, hot oil heaters, bagging plants, fuel storage tanks, industrial and asphalt burners and systems, custom batch plants, material transfer vehicles, soil stabilizing-reclaiming machinery, blower trucks and trailers, milling machines, soil remediation plants, wood chippers and grinders, pump trailers, concrete batch plants, control systems, liquid terminals, storage equipment and related parts, construction and retrofits, polymer plants, and concrete mixers, as well as engineering and environmental permitting services. This segment provides its products to asphalt producers; highway and heavy equipment contractors; utility contractors; sand and gravel producers; construction, demolition, recycle and crushing contractors; forestry and environmental recycling contractors; mine and quarry operators; port and inland terminal authorities; power stations; and domestic and foreign government agencies. The Materials Solutions segment designs and manufactures crushing equipment, mobile plants, bulk material handling solutions, vibrating equipment, screening equipment, electrical control centers, modular plants and systems, conveying equipment, plant automation products, portable plants, and mineral processing equipment, as well as offers consulting and engineering services. The company was incorporated in 1972 and is headquartered in Chattanooga, Tennessee.

Holley Inc. operates as designer, manufacturer, and marketer of automotive aftermarket products for car and truck enthusiasts in the United States, Canada, Europe, and China. Its products span various automotive platforms and sells across multiple channels. The company's performance automotive products include carburetors, fuel pumps, fuel injection systems, nitrous oxide injection systems, superchargers, exhaust headers, mufflers, distributors, ignition components, engine tuners, automotive performance plumbing products; and exhaust products, as well as shifters, converters, transmission kits, transmissions, tuners, and automotive software. It also offers brakes and brake systems, vehicle restoration parts, helmets, head and neck restraints, seat belts, fire suits, and electronic control and monitoring systems. The company sells its products under the Holley, Holley EFI, MSD, Simpson, Powerteq, Accel, and Flowmaster through DTC, E-tailer, warehouse distributor, traditional retailer, and jobber/ installer channels. Holley Inc. was founded in 1903 and is headquartered in Bowling Green, Kentucky.

Cooper-Standard Holdings Inc., through its subsidiary, Cooper-Standard Automotive Inc., manufactures and sells sealing, fuel and brake delivery, and fluid transfer systems in the United States, Mexico, China, Poland, Canada, Germany, France, and internationally. The company offers sealing systems, including dynamic seals, static seals, encapsulated glasses, textured surfaces with cloth appearance, obstacle detection sensor systems, FlushSeal systems, variable extrusions, specialty sealing products, stainless steel trims, and frameless systems. It also provides fuel and brake delivery systems comprising chassis and tank fuel lines and bundles, metallic brake lines and bundles, quick connects, low oligomer multi-layer convoluted tubes, brake jounce lines, direct injection and port fuel rails, MagAlloy break tube coating, and ArmorTube brake tube coating. In addition, the company offers fluid transfer systems, such as heater/coolant hoses, turbo charger hoses, charged air cooler ducts/assemblies, diesel particulate filter lines, secondary air hoses, degas tanks and deaerators, brake and clutch hoses, air intake and discharge systems, transmission oil cooling hoses, high temperature MLTs, and multilayer tubing for glycol thermal management. Its products are primarily used in passenger vehicles and light trucks that are manufactured by automotive original equipment manufacturers and replacement markets. Cooper-Standard Holdings Inc. was founded in 1960 and is headquartered in Northville, Michigan.

LiqTech International, Inc., a clean technology company, designs, develops, produces, markets, and sells automated filtering systems, ceramic silicon carbide liquid applications, and diesel particulate air filters in the United States, Canada, Europe, Asia, and South America. The company operates through Water, Ceramics, and Plastics segments. It also manufactures and sells silicon carbide ceramic filtration technologies for liquid and gas purification; and diesel particulate filters for exhaust emission control solutions to the verified retrofit and the original equipment manufacturer market. In addition, the company develops, manufactures, and sells liquid filtration systems, which are used for the marine scrubber systems, filtration of produced water, industrial applications, pool and spa water, food and beverage application, and silicon carbide membrane technology. Further, it provides flexible and plastics manufacturing products for machining, welding, bending, and solvent cementing. LiqTech International, Inc. sells its products primarily to industrial customers through direct sales, systems integrators, distributors, agents, and partners. The company was formerly known as Blue Moose Media, Inc. and changed its name to LiqTech International, Inc. in October 2011. LiqTech International, Inc. was founded in 2000 and is headquartered in Ballerup, Denmark.

Atrion Corporation, together with its subsidiaries, develops, manufactures, and sells products for fluid delivery, cardiovascular, and ophthalmic applications in the United States, Canada, Europe, and internationally. The company's fluid delivery products include valves that fill, hold, and release controlled amounts of fluids or gasses for use in various intubation, intravenous, catheter, and other applications in the anesthesia and oncology fields, as well as promote infection control in hospital and home healthcare environments. Its cardiovascular products comprise Myocardial Protection System that delivers fluids and medications, and mixes critical drugs, as well as controls temperature, pressure, and other variables; cardiac surgery vacuum relief valves; silicone vessel loops for retracting and occluding vessels; and inflation devices for balloon catheter dilation, stent deployment, and fluid dispensing, as well as products for use in heart bypass surgery. The company's ophthalmic products consist of a line of balloon catheters, which are used for the treatment of nasolacrimal duct obstruction in children and adults. It manufactures products for safe needle and scalpel blade containment; inflation systems and valves used in marine and aviation safety products; components used in inflatable survival products and structures; and one-way and two-way pressure relief valves that protect sensitive electronics and other products during transport in other medical and non-medical applications. The company sells its products to physicians, hospitals, clinics, and other treatment centers; and other equipment manufacturers through direct sales force, independent sales representatives, and distributors. Atrion Corporation was founded in 1944 and is headquartered in Allen, Texas.