Ohio's semiconductor companies are engaged in the critical production of essential materials and components for electronics. They span manufacturing and research, focusing on both consumer and specialized markets, such as aerospace and military applications. Trends like rising demand for electronic devices, increased global connectivity, and advancements in material science shape the growth of this industry. Ohio’s strategic economic initiatives further boost its semiconductor capabilities, making the state a key player in the broader national supply chain.

This list features 19 semiconductor companies based in Ohio, varying in size from small teams to larger organizations. Founded between 1960 and 2020, these companies are located in various cities like Grove City, Cleveland, and Eaton. Specializing in products ranging from microelectronics and thermal solutions to advanced materials, each company offers unique solutions in the semiconductor sector.

Continue reading to discover the top semiconductor companies in Ohio.

Top 19 Semiconductor Companies in Ohio

1. Tosoh SMD, Inc.

• Website: tosohsmd.com
• Ownership type: Private
• Headquarters: Grove City, Ohio, United States (USA)
• Employee distribution: United States (USA) 98%, South Korea 2%
• Founded year: 1988
• Headcount: 201-500
• LinkedIn: tosohsmd

Tosoh SMD, Inc., based in Grove City, Ohio, is a private semiconductor manufacturer established in 1988. The company specializes in high-purity materials for the semiconductor industry, providing a range of products that include semiconductor targets, powdered metals, and chemical precursors. Tosoh SMD plays a crucial role in the electronics manufacturing sector, supplying essential materials that enhance the performance and reliability of electronic devices. With a workforce of approximately 181 employees, the company operates primarily in the United States, with a small presence in South Korea. Tosoh SMD is recognized for its expertise in physical vapor deposition (PVD) technology, contributing to advancements in target metallurgy and non-destructive testing methodologies. Their commitment to quality and innovation ensures that they meet the evolving needs of their global customer base in the semiconductor market.

2. SenseICs Corporation

• Website: senseics.com
• Ownership type: Private
• Headquarters: Columbus, Ohio, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2017
• Headcount: 11-50
• LinkedIn: senseics

SenseICs Corporation, founded in 2017 and based in Columbus, Ohio, is a private semiconductor company that designs and develops integrated circuit chips and microelectronics hardware. With a team of 11 to 50 employees, SenseICs focuses on providing advanced solutions tailored for both defense and commercial sectors. Their expertise spans several technical areas, including advanced imaging, communications, and trusted microelectronics, particularly in high radiation environments. The company is recognized for its innovative approach to creating radiation-hardened circuitry, which is essential for applications in space and nuclear settings. SenseICs also emphasizes security in its designs, ensuring that their integrated circuits are resistant to tampering and information leakage. Their products are validated for use in critical applications, such as military operations and high-energy physics experiments, showcasing their relevance in the semiconductor industry.

3. Promerus, LLC

• Website: promerus.com
• Ownership type: Private
• Headquarters: Akron, Ohio, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2001
• Headcount: 11-50
• LinkedIn: promerus-llc

Promerus, LLC, based in Akron, Ohio, is a technology-driven organization that specializes in advanced material solutions tailored for the semiconductor, optoelectronic, and electronic packaging sectors. Founded in 2001 as a subsidiary of Sumitomo Bakelite Co., Ltd., Promerus has its roots in the Electronic Materials Group of the BFGoodrich Company. The company is dedicated to developing high-quality materials that enhance the performance and reliability of electronic devices. Promerus has made significant strides in research and development, particularly in the area of polynorbornene, a versatile polymer used in various electronic applications. Their commitment to quality is underscored by their ISO 9001 certification, which they have maintained since 2006. Promerus actively engages in the semiconductor industry by providing innovative material solutions that meet the evolving needs of manufacturers, thereby contributing to advancements in electronic technology.

4. Silfex, Inc. - A Division of Lam Research Corporation

• Website: silfex.com
• Ownership type: Corporate
• Headquarters: Eaton, Ohio, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: $175.0M, October 2006
• Founded year: 2006
• Headcount: 1001-5000
• LinkedIn: silfex-inc----a-division-of-lam-research-corporation

Silfex, Inc., a division of Lam Research Corporation, is a manufacturer based in Eaton, Ohio, specializing in precision silicon components for the semiconductor industry. Founded in 2006, Silfex has established itself as a key supplier of high-quality silicon products that are vital for semiconductor manufacturing equipment. The company’s expertise lies in advanced manufacturing processes, including crystal growing, ingot processing, and precision machining. Silfex's products are integral to various semiconductor processes, such as plasma etching and vapor deposition, which are essential for producing modern electronic devices. With a workforce of over 500 employees, Silfex operates entirely within the United States, emphasizing its commitment to local manufacturing and engineering excellence. The company has expanded its facilities to enhance production capabilities, reflecting its growth and importance in the semiconductor supply chain.

5. Darrah Electric Company

• Website: darrahelectric.com
• Ownership type: Family Owned
• Headquarters: Cleveland, Ohio, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1960
• Headcount: 11-50
• LinkedIn: darrah-electric-co

Darrah Electric Company, founded in 1960 and based in Cleveland, Ohio, is a family-owned business that manufactures and distributes power semiconductors and related products. With a workforce of approximately 29 employees, the company has carved out a niche in providing solutions for industrial applications. Their product offerings include DC power supplies, heat sinks, and assemblies, which are essential for efficient power management in various sectors, including electrical engineering and renewable energy. Darrah Electric prides itself on its ability to deliver customized power conversion solutions, leveraging advanced semiconductor technologies. They also serve as a franchised stocking distributor for a range of power semiconductor products, ensuring that they meet the needs of their customers with a robust inventory and engineering support. Their commitment to quality and timely delivery has made them a trusted partner in the semiconductor marketplace.

6. Rite Track

• Website: ritetrack.com
• Ownership type: Private
• Headquarters: West Chester Township, Ohio, United States (USA)
• Employee distribution: United States (USA) 70%, Singapore 20%, Malaysia 10%
• Founded year: 1993
• Headcount: 51-200
• LinkedIn: rite-track

Rite Track, founded in 1993 and based in West Chester Township, Ohio, is a private company with a workforce of approximately 72 employees. The firm specializes in providing technical solutions tailored to the semiconductor industry. Their offerings include wafer carrier inspection, parts supply, repairs, and upgrades for semiconductor manufacturing equipment. Rite Track serves a global clientele, with a notable presence in the United States, Singapore, and Malaysia. Their expertise is particularly valuable to semiconductor manufacturers who depend on reliable equipment to maintain production capabilities. The company has established itself as a trusted partner in the semiconductor sector, focusing on enhancing operational efficiency and extending the lifespan of critical manufacturing systems.

7. Process Technology

• Website: processtechnology.com
• Ownership type: Corporate
• Headquarters: Willoughby, Ohio, United States (USA)
• Employee distribution: United States (USA) 91%, Mexico 7%, Other 2%
• Latest funding: $11.8M, September 2007
• Founded year: 1978
• Headcount: 201-500
• LinkedIn: process-technology

Process Technology, based in Willoughby, Ohio, has been operational since 1978. The company designs and manufactures thermal solutions and power supply products tailored for various industries, including semiconductors and medical devices. Their product offerings include inline heaters, immersion heaters, power supplies, and process controls, all engineered to meet the stringent requirements of semiconductor manufacturing. With a commitment to innovation and customer collaboration, Process Technology focuses on delivering reliable and efficient solutions that cater to the specific needs of their clients. They have a notable presence in the semiconductor sector, providing essential equipment for processes that require high purity and precision. The company has received funding amounting to $11.8 million, indicating a level of financial backing that supports its operations and growth.

8. Giesting & Associates

• Website: giesting.com
• Ownership type: Private
• Headquarters: Cincinnati, Ohio, United States (USA)
• Founded year: 1971
• Headcount: 11-50
• LinkedIn: giesting-%26-associates

Giesting & Associates, founded in 1971 and based in Cincinnati, Ohio, is a manufacturer's representative that specializes in embedded electronics and technology solutions. The company represents a variety of products, including semiconductors, sensors, RFID, MEMS, and more. With a consultative sales approach, Giesting & Associates focuses on understanding the unique needs of their customers, which allows them to foster strong relationships and provide tailored solutions. They cover a significant territory that includes Ohio, Michigan, Indiana, Western Pennsylvania, West Virginia, and Kentucky, representing a market with a total addressable design opportunity of approximately $1.9 billion as of 2015. Their commitment to customer engagement and problem-solving is central to their operations, making them a notable entity in the semiconductor supply chain.

9. Hana Technologies Inc.

• Website: hana.family
• Ownership type: Private
• Headquarters: Solon, Ohio, United States (USA)
• Employee distribution: United States (USA) 92%, Thailand 8%
• Founded year: 1999
• Headcount: 51-200
• LinkedIn: hanatechnologies

Hana Technologies Inc., based in Solon, Ohio, is a technology manufacturer that specializes in RFID products and microelectronics. Founded in 1999, the company has grown to employ around 86 individuals and operates as part of the Hana Microelectronics Group. With over 1,100,000 square feet of manufacturing space, Hana Technologies focuses on providing high-quality services such as Printed Circuit Board Assembly (PCBA) and Integrated Circuit assembly. Their clientele primarily consists of businesses in the manufacturing sector that require reliable identification solutions and electronic components. Hana Technologies has established a global presence, with operations in the USA, Thailand, China, Cambodia, and Korea. The company has made significant strides in the RFID market, particularly with innovations like RFID tire tags, which are embedded during the tire manufacturing process. This capability has positioned Hana as a key supplier in the RFID industry, producing billions of inlays annually. Their commitment to quality and customer satisfaction is evident in their operational practices and product offerings.

10. Tosoh America, Inc.

• Website: tosohamerica.com
• Ownership type: Private
• Headquarters: Grove City, Ohio, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1989
• Headcount: 11-50
• LinkedIn: tosoh-america-inc.

Tosoh America, Inc., established in 1989, serves as the parent company for a growing number of Tosoh Group companies in North America. Headquartered in Grove City, Ohio, the company integrates the corporate activities of its subsidiaries while expanding Tosoh's business lines and operational capabilities in the region. Tosoh America is involved in advanced technology sectors, particularly in the manufacture and sale of semiconductor materials, solar materials, and medical diagnostic instruments. Their subsidiaries, such as Tosoh SMD, Inc. and Tosoh Quartz, Inc., specifically cater to the semiconductor industry by providing sputtering targets, thin film deposition materials, and fabricated quartz products. This positions Tosoh America as a key player in supporting the semiconductor supply chain, serving customers across various high-tech industries.

11. Qqe

• Website: qqe.com
• Ownership type: Private
• Headquarters: Dayton, Ohio, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1995
• Headcount: 51-200
• LinkedIn: quality-quartz-engineering-inc-

QQE, founded in 1995 and based in Dayton, Ohio, is a private manufacturing company that specializes in high-purity quartz products. Their offerings cater to various high-tech industries, including semiconductor, solar, and fiber optics. QQE provides a range of custom quartz components and precision engineering services tailored to meet the specific needs of their business customers. The company has a strong focus on quality and reliability, ensuring that their products support critical manufacturing processes in the semiconductor industry. QQE has recently expanded its operations, moving to a larger facility to enhance its manufacturing and testing capabilities. Their commitment to the semiconductor sector is further underscored by their membership in SEMI, which connects them with industry leaders and trends. This positions QQE as a notable player in the supply chain for semiconductor manufacturing.

12. Rhenium Alloys, INC.

• Website: rhenium.com
• Ownership type: Private
• Headquarters: North Ridgeville, Ohio, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1966
• Headcount: 11-50
• LinkedIn: rhenium-alloys-inc-

Rhenium Alloys, Inc., established in 1966 and located in North Ridgeville, Ohio, is a manufacturer that specializes in refractory metals and high-temperature products. The company produces a variety of materials, including rhenium, molybdenum, and tungsten, which are essential for applications in extreme conditions. Their product offerings include wire, rod, bar stock, foil, sheet, and plate, as well as specialized items like MOCVD heater filaments and quartz halogen lamps. Rhenium Alloys serves a range of industries, including aerospace, defense, and electronics, and has a notable presence in the semiconductor sector through their production of high-quality rhenium heater filaments for MOCVD processes. The company emphasizes quality and innovation, continuously researching new applications for its products. Rhenium Alloys has also developed proprietary manufacturing techniques to enhance the performance of their materials, ensuring they meet the rigorous demands of their customers.

13. Momentive Technologies

• Website: momentivetech.com
• Ownership type: Private
• Headquarters: Strongsville, Ohio, United States (USA)
• Employee distribution: United States (USA) 83%, Germany 7%, Japan 5%, Other 5%
• Founded year: 2020
• Headcount: 501-1000
• LinkedIn: momentive-technologies

Momentive Technologies, founded in 2020 and based in Strongsville, Ohio, is a manufacturer focused on quartz and ceramic solutions. The company provides high-purity materials that serve critical applications in the semiconductor, aerospace, and military sectors. With a global footprint, Momentive Technologies operates multiple production sites and emphasizes innovation in its offerings. Their product range includes quartz crucibles, ceramic coatings, and various ceramic powders, all tailored to meet the stringent requirements of semiconductor manufacturing. The company has a history of over 100 years in quartz and ceramics, with more than 50 years dedicated to the semiconductor market. This extensive experience positions them as a reliable partner for companies in need of high-quality materials for semiconductor production.

14. APS Materials, Inc.

• Website: apsmaterials.com
• Ownership type: Private
• Headquarters: Dayton, Ohio, United States (USA)
• Employee distribution: United States (USA) 50%, Ireland 47%, China 3%
• Founded year: 1975
• Headcount: 51-200
• LinkedIn: aps-materials-inc

APS Materials, Inc., founded in 1975 and based in Dayton, Ohio, is a private company that specializes in advanced materials coating solutions. With a workforce of approximately 96 employees, APS operates globally, with facilities in the United States, Ireland, and China. The company serves various industries, including biomedical, aerospace, automotive, and notably, the semiconductor sector. APS is recognized for its innovative thermal spray and custom coating services, which enhance product performance and durability. Their expertise extends to developing coatings for semiconductor fabrication equipment, such as corrosion-resistant coatings and dielectric coatings for wafer electrostatic chucks. This focus on research and development has allowed APS to address specific challenges faced by semiconductor manufacturers, making them a valuable partner in the industry.

15. Coexcell

• Website: coexcellinc.com
• Ownership type: Private
• Headquarters: Maumee, Ohio, United States (USA)
• Employee distribution: United States (USA) 69%, India 31%
• Founded year: 1993
• Headcount: 51-200
• LinkedIn: u-s-coexcell-inc-

Coexcell, founded in 1993 and based in Maumee, Ohio, is a manufacturer that specializes in Ultra-Pure and High Purity drum solutions tailored for the semiconductor and pharmaceutical industries. The company employs advanced blow molding technology and proprietary processes to produce high-quality, contamination-free packaging. Their product offerings include a range of drums designed to meet the rigorous cleanliness standards required for the storage and transport of sensitive chemicals and active pharmaceutical ingredients. Coexcell's commitment to quality is evident in their state-of-the-art manufacturing facility, which features clean rooms and advanced air filtration systems to ensure the purity of their products. The company serves a sophisticated customer base that relies on their expertise to maintain the integrity of their chemical processes, particularly in the semiconductor sector where even minute levels of contamination can have significant impacts. Coexcell's innovative ICAS™ technology further enhances their production capabilities, allowing them to meet the high demands of the semiconductor industry.

16. NuWaves RF Solutions

• Website: nuwaves.com
• Ownership type: Private
• Headquarters: Middletown, Ohio, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2000
• Headcount: 51-200
• LinkedIn: nuwaves-engineering

NuWaves RF Solutions, founded in 2000 and based in Middletown, Ohio, is a private company that specializes in radio frequency (RF) and microwave solutions. The company offers a range of products including power amplifiers, filters, frequency converters, and low noise amplifiers. They also provide engineering design services and contract manufacturing, primarily targeting customers in the defense and aerospace sectors. NuWaves is recognized for its innovative solutions that enhance communication and electronic warfare systems. Their engineering capabilities extend from concept to production, ensuring high-performance RF products tailored to specific needs. As a veteran-owned small business, NuWaves emphasizes quality and reliability in its offerings, catering to the stringent requirements of military and industrial applications.

17. Faraday Technology Inc

• Website: faradaytechnology.com
• Ownership type: Private
• Headquarters: Englewood, Ohio, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: Other (Grant), $1.1M, August 2024
• Founded year: 1981
• Headcount: 11-50
• LinkedIn: faraday-technology

Faraday Technology Inc, founded in 1981 and based in Englewood, Ohio, is a private technology firm that specializes in electrochemical research, development, and engineering services. The company offers a range of products and services, including electrodeposition, surface finishing, and environmental remediation. Their primary clientele includes sectors such as aerospace, energy, and manufacturing. Notably, Faraday has a strong focus on semiconductor applications, providing technologies related to deposition and etching processes essential for electronic devices. Their proprietary FARADAYIC Process allows for precise control in manufacturing, which is crucial for producing high-quality semiconductor components. Recently, they received funding amounting to approximately $1.15 million, indicating ongoing investment in their innovative capabilities. Faraday's commitment to enhancing manufacturing processes while meeting environmental standards positions them as a significant player in the semiconductor industry.

18. Bullen Ultrasonics

• Website: bullentech.com
• Ownership type: Family Owned
• Headquarters: Eaton, Ohio, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1971
• Headcount: 51-200
• LinkedIn: bullen-ultrasonics-inc-

Bullen Ultrasonics, founded in 1971 and based in Eaton, Ohio, is a family-owned machining service provider. The company has carved out a niche in ultrasonic and microlucent machining, focusing on hard and brittle materials. Bullen serves various industries, including aerospace and semiconductor manufacturing, where precision is paramount. Their capabilities extend to machining semiconductor ceramics and MEMS technical glass, which are essential components in modern electronic devices. Bullen is ISO 9001 certified and AS9100 certified, reflecting their commitment to quality and customer service. Over the years, they have built a reputation for delivering tailored solutions that meet the complex engineering needs of their clients. With a workforce of around 80 employees, Bullen continues to innovate and expand its services, ensuring they remain relevant in the competitive landscape of semiconductor manufacturing.

19. Libra Industries

• Website: libraindustries.com
• Ownership type: Private Equity
• Headquarters: Mentor, Ohio, United States (USA)
• Employee distribution: United States (USA) 71%, Mexico 26%, Other 2%
• Latest funding: May 2019
• Founded year: 1956
• Headcount: 201-500
• LinkedIn: libra-industries

Libra Industries, founded in 1956 and based in Mentor, Ohio, is a manufacturing company that specializes in systems integration and complex manufacturing solutions. With a workforce of approximately 267 employees, the company serves original equipment manufacturers (OEMs) across various sectors, including aerospace, medical, and industrial automation. Notably, Libra Industries has a strong focus on the semiconductor capital equipment market, providing essential services such as electronic manufacturing, precision machining, and clean room assembly. Their extensive experience in managing technically demanding projects positions them as a reliable partner for companies in the semiconductor industry. Libra's commitment to quality and compliance with industry standards further enhances their reputation as a trusted manufacturing partner.

Semiconductor Insights: Key Companies in Ohio

Company	Headquarter	Size	Founded	Ownership
Tosoh SMD, Inc.	Grove City, Ohio, United States (USA)	201-500	1988	Private
SenseICs Corporation	Columbus, Ohio, United States (USA)	11-50	2017	Private
Promerus, LLC	Akron, Ohio, United States (USA)	11-50	2001	Private
Silfex, Inc. - A Division of Lam Research Corporation	Eaton, Ohio, United States (USA)	1001-5000	2006	Corporate
Darrah Electric Company	Cleveland, Ohio, United States (USA)	11-50	1960	Family Owned
Rite Track	West Chester Township, Ohio, United States (USA)	51-200	1993	Private
Process Technology	Willoughby, Ohio, United States (USA)	201-500	1978	Corporate
Giesting & Associates	Cincinnati, Ohio, United States (USA)	11-50	1971	Private
Hana Technologies Inc.	Solon, Ohio, United States (USA)	51-200	1999	Private
Tosoh America, Inc.	Grove City, Ohio, United States (USA)	11-50	1989	Private
Qqe	Dayton, Ohio, United States (USA)	51-200	1995	Private
Rhenium Alloys, INC.	North Ridgeville, Ohio, United States (USA)	11-50	1966	Private
Momentive Technologies	Strongsville, Ohio, United States (USA)	501-1000	2020	Private
APS Materials, Inc.	Dayton, Ohio, United States (USA)	51-200	1975	Private
Coexcell	Maumee, Ohio, United States (USA)	51-200	1993	Private
NuWaves RF Solutions	Middletown, Ohio, United States (USA)	51-200	2000	Private
Faraday Technology Inc	Englewood, Ohio, United States (USA)	11-50	1981	Private
Bullen Ultrasonics	Eaton, Ohio, United States (USA)	51-200	1971	Family Owned
Libra Industries	Mentor, Ohio, United States (USA)	201-500	1956	Private Equity

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