Local Industry

Knox County boasts a diverse system of successful companies in various fields and industries. The most prominent industries represented are Auto, Building Materials, Energy, Paper & Packaging, and specialty Manufacturing. Listed below are the most prominent companies in each represented industry.



Design, development, and manufacturing of highly specialized stampings, complex welded assemblies, and fabricated stainless and carbon steel components.

FT Precision

Develops and manufactures high precision engine parts, in steel and aluminum, with expertise to serve diverse and specialized component needs.


Manufactures tubular products for the automotive industry. Products consist of small diameter tubing with corrosion-resistant coatings, plastic tubing assemblies for fuel tanks and engine applications, and brazed products for engine applications.

Schafer Driveline Industries

Designs and manufactures high-quality axles for recreational or light-utility off-highway vehicles, known for being the quietest on the market.

Building Materials

Brenneman Lumber

Provides the finest northern Appalachian hardwood lumber, which is widely recognized for its color and texture.

Heating and Cooling Products (HCP)

Manufactures and distributes superior quality sheet metal products including pipe, elbows, boots, rectangular duct, duct fittings, wall stack, oval, black stove pipe and fittings, spiral pipe, spiral PVC pipe, and fittings for the HVAC professional.


Designs, produces, and distributes interior and exterior doors, wood, vinyl, and aluminum windows, wall systems, shower enclosures, and other components used in the new construction.


Kokosing Construction Company, Inc. is one of the nation’s largest heavy highway construction companies. A market leader in self-performing projects of any size and scope, Kokosing offers a full range of services throughout the Midwest.

MACK Industries, INC

Precast and prestressed concrete products for contractors, owners, counties, and state agencies.


Ariel Corporation

Ariel is the largest manufacturer of separable reciprocating gas compressors worldwide. Their compressors are utilized by the global energy industry to extract, process, transport, store, and distribute natural gas from the wellhead to the end-user. Headquarters and operations are located in Knox County.

Paper & Packaging

International Paper

One of the world’s leading producers of fiber-based packaging, pulp, and paper.

Mount Vernon Packaging

Custom manufactured corrugated products such as RSC’s, die-cut boxes, partitions, corner protectors, core pallets, and internal packaging.

Burrows Paper Company

Paper food packaging solutions for restaurants, supermarkets, convenience stores, concessionaires, and caterers.

Mauser Packaging Solutions

Manufactures and distributes plastic, metal, fiber, and IBC industrial packing supplies.


Divelbiss Corporation

Designs and manufactures custom industrially hardened electronic control solutions, off-the-shelf Programmable Logic Controllers. From simple relay panels to a complex SCADA system for test and monitoring of the emergency warning network surrounding nuclear power facilities.

UMD Automated Systems

Designs, engineers, manufacturers, and installs state-of-the-art large-scale material handling and conveyor systems for any application.

Ver-Mac Industries

Specializes in the fabrication of wire and roll-formed components including sign wire products and air filter frame products.

Replex Plastics

Manufactures, shapes, trims, coats, cuts, sells, and ships technologically-advanced industrial thermoformed optical plastic lenses, mirrors, and domes.

Knox County Top Employers 2021

*Top Employers determined by the number of Knox County Employees. Companies unwilling to participate in the survey are not presented on the list.*

1. Ariel

2. Knox Community Hospital

3. Kenyon College

4. Knox County

5. Mount Vernon City Schools

6. Mount Vernon Nazarene University

7. Wal-mart Stores Inc

8. Kroger

9. FT Precision Inc

10. Kokosing Construction Company

11. Mount Vernon Development Center

12. The Ohio Eastern Star Home

13. City of Mount Vernon

14. Park National Bank

15. International Paper Company

16. The Laurels of Mount Vernon

17. Mauser USA, LLC

18. Schafer Driveline

19. Country Club Retirement

20. AMG Industries LLC

21. Ver-Mac Industries

22. UMD Automated Systems

23. Whispering Hills 

24. Owens Corning

25. Divelbiss

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