The plastic manufacturing industry in Maryland is vital for various applications, producing everything from packaging products to specialized components. Companies engage in processes like injection molding and thermoforming, creating custom solutions that meet clients' distinct needs. As sustainability becomes increasingly crucial, many firms are integrating eco-friendly materials and recycling practices into their operations. Moreover, advancements in technology are driving innovation in product design and manufacturing efficiency, enhancing competitive dynamics. This strategic positioning makes Maryland an appealing location for plastic manufacturing companies looking to adapt to fast-paced market changes while fulfilling a range of sector-specific requirements.

Our list features 20 prominent plastic manufacturing companies based in Maryland, highlighting their varied sizes from small firms with under 50 employees to larger entities employing hundreds. These companies cover a spectrum of specializations, including custom fabrication, compounding technologies, and environmentally sustainable solutions. Founded from as early as 1910 to more recent establishment in 2008, they contribute significantly to local and national markets, catering to sectors like automotive and packaging.

Continue reading to discover the top plastic manufacturing companies in Maryland.

Top 20 Plastic Manufacturing Companies in Maryland

1. Precision Plastics Inc.

• Website: precisionplastics.com
• Ownership type: Private
• Headquarters: Beltsville, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1973
• Headcount: 11-50
• LinkedIn: precision-plastics-inc-

Precision Plastics Inc., based in Beltsville, Maryland, is a private custom fabrication company that has been serving the plastic manufacturing industry since 1973. With a workforce of approximately 38 employees, the company specializes in acrylic and industrial products, providing tailored solutions to meet the specific needs of businesses and organizations. They offer a comprehensive range of design and engineering services, utilizing advanced computerized production equipment and high-quality materials. Their talented staff is dedicated to assisting clients in transforming their designs into finished products. The company showcases its work through a gallery that highlights various projects, including museum cases and industrial products such as tapes and adhesives. Precision Plastics Inc. is committed to excellence and customer satisfaction, making them a relevant player in the plastic manufacturing sector.

2. Adell Corporation

• Website: adellplastics.com
• Ownership type: Private
• Headquarters: Baltimore, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1958
• Headcount: 51-200
• LinkedIn: adell-plastic

Adell Corporation, operating under the name Adell Plastics, is a private manufacturing firm based in Baltimore, Maryland. Established in 1958, the company specializes in compounding technology for thermoplastic resins. Adell produces a wide array of compounded products tailored for various sectors, including medical, automotive, film, fiber, and electronics. Their product offerings include proprietary engineered thermoplastic compounds, with a strong emphasis on materials such as nylon, polypropylene, polyester, polycarbonate, and silicone concentrates. Adell's production capabilities are supported by three strategically located facilities, all certified under ISO 9001, ensuring high standards of quality and performance. The company prides itself on its commitment to customer service and continuous improvement, striving to meet the evolving demands of its clients while maintaining confidentiality in its operations.

3. Tim Plastics, Inc.

• Website: timplastics.com
• Ownership type: Private
• Headquarters: North East, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1985
• Headcount: 201-500
• LinkedIn: tim-plastics-inc-

Tim Plastics, Inc., based in North East, Maryland, has been a manufacturer of high-quality plastic bottles and jars since its inception in 1985. The company serves a wide array of industries, including pharmaceuticals, food and beverage, and personal care. Tim Plastics specializes in both stock and custom products, utilizing materials such as high-density polyethylene (HDPE), polypropylene (PP), and polyethylene terephthalate (PET). With a robust infrastructure that includes five manufacturing and warehousing facilities, the company boasts over 520,000 square feet of space and more than 100 production machines. Their in-house design and engineering teams work closely with clients to create tailored packaging solutions, ensuring quick turnaround times and high-quality output. Tim Plastics has maintained a strong reputation in the industry for over three decades, adapting to changing market needs and continuously expanding their product offerings.

4. Maryland Thermoform Corporation

• Website: mdthermo.com
• Ownership type: Private
• Headquarters: Baltimore, Maryland, United States (USA)
• Latest funding: Other (Grant), April 2020
• Founded year: 1972
• Headcount: 51-200
• LinkedIn: maryland-thermoform-corp

Maryland Thermoform Corporation, also known as Mercury Plastics Inc., is a private manufacturing company based in Baltimore, Maryland. Established in 1972, the company specializes in thermoforming and fabrication of plastic products. It serves a variety of sectors, including government, military, aerospace, and consumer goods packaging. Mercury Plastics is recognized for its custom solutions and high-quality manufacturing services, supported by a vertically integrated facility. The company holds an ISO 9001 certification, which underscores its commitment to quality and efficiency in production. With a workforce of approximately 32 employees, Maryland Thermoform Corporation has maintained a steady presence in the plastic manufacturing industry for over four decades, adapting to the evolving needs of its clients and the market.

5. Fawn Industries

• Website: fawnplastics.com
• Ownership type: Private
• Headquarters: Cockeysville, Maryland, United States (USA)
• Employee distribution: United States (USA) 50%, Mexico 50%
• Founded year: 1950
• Headcount: 11-50
• LinkedIn: fawn-industries

Fawn Industries, based in Cockeysville, Maryland, is a manufacturer that specializes in decorative injection molded components and assemblies. Founded in 1950, the company has built a solid reputation over the decades, serving various industries such as automotive, medical, and consumer products. Fawn Industries employs advanced manufacturing technologies, including 3D printing and injection molding, to produce high-quality plastic parts. Their engineering-driven approach ensures that they meet customer needs effectively, providing solutions that range from simple parts to complex assemblies. With a workforce of around 67 employees and operations extending to Mexico and China, Fawn Industries is well-positioned to cater to a global market. The company is also certified under ISO 9000, ISO 14001:2015, and IATF 16949:2016, reflecting its commitment to quality and environmental management. Fawn Industries continues to innovate and adapt, making it a relevant player in the plastic manufacturing industry.

6. Intercontinental Export Import, INC

• Website: ieiplastics.com
• Ownership type: Private
• Headquarters: Columbia, Maryland, United States (USA)
• Founded year: 1987
• Headcount: 11-50
• LinkedIn: intercontinental-export-import

Intercontinental Export Import, INC (IEI Plastics), founded in 1987 and based in Columbia, Maryland, is a private company that specializes in recycling and sustainable plastic solutions. With a workforce of approximately 21 employees, IEI Plastics focuses on purchasing and selling post-industrial recycled plastics in both domestic and international markets. The company has transformed from its initial trading roots into a service-oriented organization that emphasizes sustainable practices. Their offerings include mechanical recycling, total bi-product recycling, and product stewardship, aimed at helping businesses in the manufacturing and packaging sectors reduce waste and meet environmental regulations. IEI Plastics is committed to principles such as 'No landfill guarantees' and 'Closed Loop Recycling,' which reflect their dedication to fostering a sustainable future. They also provide services like grinding, optical pellet sorting, and toll processing, ensuring that they cater to the specific needs of their clients while minimizing their carbon footprint.

7. Niche Polymer LLC

• Website: nichepolymer.com
• Ownership type: Private
• Headquarters: Columbia, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2008
• Headcount: 51-200
• LinkedIn: niche-polymer-llc

Niche Polymer LLC, founded in 2008 and based in Columbia, Maryland, operates as a custom compounder and toll processor of thermoplastic engineered resins. The company specializes in a wide array of proprietary thermoplastic compounds, including nylon, polypropylene, polycarbonate, and ABS. With a workforce of approximately 53 employees, Niche Polymer emphasizes custom formulations, working closely with clients to develop tailored solutions that meet specific application requirements. Their commitment to research and development is evident in their advanced compounding capabilities, which include handling both small and large projects efficiently. Niche Polymer's ISO certification further underscores their dedication to quality management systems, making them a reliable partner in the plastic manufacturing industry.

8. Fluoron

• Website: fluoron.com
• Ownership type: Family Owned
• Headquarters: Elkton, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: Other (Grant), $104,000, February 2025
• Founded year: 1993
• Headcount: 11-50
• LinkedIn: fluoron-inc.

Fluoron Inc, based in Elkton, Maryland, has been a player in the plastic manufacturing industry since its founding in 1993. The company specializes in custom fluoropolymer solutions, catering to various sectors including aerospace, food processing, and pulp and paper. Fluoron offers a range of products such as heat shrink sleeves and nonstick coatings, which are designed to enhance efficiency and reduce downtime in manufacturing processes. Their focus on high-quality manufacturing is underscored by their ISO 9001 certification, ensuring that they meet rigorous quality standards. With a small team of 11-50 employees, Fluoron prides itself on providing exceptional customer service and quick turnaround times, making them a reliable partner for businesses in need of specialized plastic solutions. The company has also received funding, indicating ongoing investment in their operations and capabilities.

9. C. R. Daniels, Inc.

• Website: crdaniels.com
• Ownership type: Private
• Headquarters: Ellicott City, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1918
• Headcount: 51-200
• LinkedIn: c.-r.-daniels-inc.

C. R. Daniels, Inc., founded in 1918, is a manufacturer based in Ellicott City, Maryland, specializing in textile, plastic, and metal fabrication. With over 105 years of experience, the company has established itself as a reliable provider of material handling containers and election equipment. Their product offerings include a wide array of plastic items, such as custom tote boxes, poly trucks, and rotationally molded bulk storage solutions. C. R. Daniels operates under the Dandux brand, known for its quality construction and durability. The company also engages in contract manufacturing, allowing them to cater to specific customer needs while ensuring high-quality production standards. C. R. Daniels is ISO 9001:2015 certified, demonstrating their commitment to quality management systems. They serve various industries, including manufacturing and government, and have a strong presence in the aerospace sector, providing fabricated products under AS9100D certification. Their operations are supported by in-house engineering, metalworking, and mold-making capabilities, which enhance their ability to deliver custom solutions efficiently.

10. dlhBOWLES

• Website: dlhbowles.com
• Ownership type: Corporate
• Headquarters: Columbia, Maryland, United States (USA)
• Employee distribution: Mexico 58%, United States (USA) 42%
• Latest funding: $255.0M, January 2022
• Founded year: 1961
• Headcount: 1001-5000
• LinkedIn: dlhbowles

dlhBOWLES is a manufacturing company based in Columbia, Maryland, with a history dating back to 1961. The company specializes in engineered plastic solutions tailored for the automotive and consumer markets. Their product offerings include fluid management systems, camera cleaning solutions, and various components for powertrain and chassis applications. With a workforce of approximately 325 employees, dlhBOWLES operates primarily in the United States and Mexico, reflecting a strategic approach to manufacturing and distribution. The company emphasizes innovation and quality, striving to meet the evolving needs of automotive manufacturers. In January 2022, dlhBOWLES received significant funding, amounting to $255 million, which underscores investor confidence in their business model and growth potential. This financial backing, combined with their extensive experience and commitment to quality, positions dlhBOWLES as a relevant player in the plastic manufacturing sector.

11. DWE, Inc.

• Website: dweplastics.com
• Ownership type: Private
• Headquarters: Belcamp, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1990
• Headcount: 51-200
• LinkedIn: dwe-inc

DWE, Inc., founded in 1990 and based in Belcamp, Maryland, is a private manufacturing company that specializes in plastic injection molding and engineering services. With a workforce of approximately 100 employees, DWE focuses on producing high-precision products for critical industries, including medical, aerospace, and defense. The company has built a reputation for delivering complex, life-critical components, often working closely with clients to develop solutions that meet stringent regulatory requirements. DWE's capabilities extend from concept development to full-scale production, with a strong emphasis on quality and compliance, as evidenced by their certifications in ISO 9001, NIOSH, and ITAR. Their product offerings include advanced breathing apparatus systems and other specialized equipment designed for challenging environments. DWE's commitment to innovation and customer collaboration positions them as a relevant player in the plastic manufacturing sector.

12. Mann-Pak, Inc.

• Website: mannpak.com
• Ownership type: Family Owned
• Headquarters: Baltimore, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1987
• Headcount: 11-50
• LinkedIn: mann-pak-inc.

Mann-Pak, Inc., founded in 1987 by A. Joseph Manning, is a family-owned business based in Baltimore, Maryland. The company specializes in flexible packaging solutions, offering a wide range of products such as polyolefin shrink films, lidding films, and various types of overwrap films. Mann-Pak has built a reputation for reliability and customer satisfaction, focusing on innovative packaging technologies that cater to the food and industrial sectors. Their commitment to sustainability is evident in their Go-Green packaging initiatives, which utilize less material and energy in production. The company operates from a state-of-the-art facility designed for efficiency and future growth, and they have been recognized for their contributions to the industry, including being featured in Flexo Magazine and receiving awards for their printing capabilities. Mann-Pak continues to evolve, adapting to market needs while maintaining a strong focus on quality and service.

13. Maryland Plastics

• Website: marylandplastics.com
• Ownership type: Corporate
• Headquarters: Federalsburg, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: $6.0M, February 2023
• Founded year: 1939
• Headcount: 51-200
• LinkedIn: maryland-plastics

Maryland Plastics, Inc. is a well-established manufacturer and distributor based in Federalsburg, Maryland. Founded in 1939, the company specializes in producing disposable party and catering plasticware, including cutlery, drinkware, and serving accessories. Their products cater to both businesses in the catering and food service industries and individual consumers. Maryland Plastics emphasizes high-quality and innovative solutions tailored for events and gatherings. With over 65 years of experience in custom molding, they also offer custom-engineered plastics, serving clients both nationally and internationally. The company has recently secured funding of $6,050,000 in February 2023, reflecting its active engagement in the market and potential for future growth.

14. Composites USA

• Website: compositesusa.com
• Ownership type: Corporate
• Headquarters: North East, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: October 2018
• Founded year: 1982
• Headcount: 11-50
• LinkedIn: composites-usa

Composites USA, founded in 1982 and based in North East, Maryland, is a manufacturer specializing in industrial-grade Fiber Reinforced Plastic (FRP) equipment. The company produces a variety of products, including ducts, tanks, and scrubbers, specifically designed for use in corrosive environments. Their clientele primarily consists of businesses in industrial sectors that require reliable and durable solutions for handling hazardous materials. Composites USA emphasizes safety and compliance, offering FM approved and UL certified products that meet stringent industry standards. With a workforce of 29 employees, the company has maintained a strong focus on innovation and quality, ensuring that their products not only meet but exceed the expectations of their clients. Their extensive experience in the field positions them as a significant player in the plastic manufacturing industry, particularly in applications that demand high-performance materials.

15. The Nelson Company

• Website: nelsoncompany.com
• Ownership type: Corporate
• Headquarters: Baltimore, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: June 2024
• Founded year: 1911
• Headcount: 51-200
• LinkedIn: the-nelson-company

The Nelson Company, founded in 1911 and based in Baltimore, Maryland, is a packaging solutions provider with over a century of experience in the industry. The company specializes in transport packaging and logistics services, offering a range of products that include wooden and plastic pallets, containers, and custom design services. Their expertise lies in helping businesses optimize their packaging processes, reduce costs, and improve efficiency. The Nelson Company serves a variety of clients, primarily manufacturers and distributors, who seek effective and sustainable packaging solutions. Their commitment to innovation is evident in their approach to product design and consulting, which aims to enhance logistics and minimize waste. The company also emphasizes sustainability, providing options for recycling and reusing packaging materials, which aligns with modern environmental standards.

16. Kols Containers, Inc.

• Website: oberk.com
• Ownership type: Private
• Headquarters: Nottingham, Maryland, United States (USA)
• Founded year: 1910
• Headcount: 11-50
• LinkedIn: kols-containers-inc.

Kols Containers, Inc., operating under the O.Berk Company brand, is a packaging firm based in Nottingham, Maryland. Founded in 1910, the company has a long-standing history in the packaging industry. Kols Containers specializes in providing a comprehensive array of packaging solutions, including glass, plastic, and metal containers, as well as closures and custom packaging services. They serve various industries, notably beauty, healthcare, and food, helping businesses meet their packaging needs efficiently. The company boasts an extensive catalog with over 14,000 stock packaging options, including a significant selection of plastic containers. Their manufacturing capabilities include multiple platforms such as injection molding and blow molding, which are essential for producing high-quality plastic products. Kols Containers also emphasizes quality assurance and regulatory compliance, ensuring that their products meet industry standards. This focus on quality and customization positions them as a relevant player in the plastic manufacturing sector.

17. Plasticoid Co Inc

• Website: plasticoid.com
• Ownership type: Private
• Headquarters: Elkton, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1946
• Headcount: 1-10
• LinkedIn: plasticoid-co-inc

Plasticoid Co Inc, founded in 1946 and based in Elkton, Maryland, is a manufacturer that specializes in custom-molded rubber components. The company produces a wide array of products, including rubber stoppers, droppers, and laboratory accessories, primarily catering to the medical, industrial, and automotive sectors. With over 75 years of experience, Plasticoid emphasizes quality and customer service, ensuring that their products meet stringent industry standards. They utilize various manufacturing processes, including compression molding, transfer molding, and thermoplastic injection molding, to create high-quality components. Plasticoid also offers in-house product design and prototyping capabilities, allowing them to tailor solutions to specific customer needs. Their commitment to sustainable and responsible manufacturing practices further enhances their standing in the industry.

18. VacPac, Inc.

• Website: vacpacinc.com
• Ownership type: Private
• Headquarters: Middle River, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1968
• Headcount: 11-50
• LinkedIn: vac-pac-inc

VacPac, Inc. is a private packaging manufacturer based in Middle River, Maryland, specializing in flexible packaging solutions tailored for food and industrial applications. Founded in 1949, the company has built a reputation for providing innovative packaging options that enhance product preservation and marketability. Their product range includes freezer-to-oven packaging, high barrier films, and sustainable packaging solutions, catering primarily to food processors. VacPac is committed to quality, utilizing advanced materials and technology to meet the highest performance standards. The company operates a certified facility, ensuring compliance with food safety regulations and maintaining rigorous quality control processes. As a certified Women Owned and Operated business, VacPac also emphasizes long-term relationships with clients, focusing on trust and quality service. Their dedication to continuous improvement and sustainability positions them well within the evolving plastic manufacturing industry.

19. Harbor Sales Co Inc

• Website: harborsales.net
• Ownership type: Private
• Headquarters: Sudlersville, Maryland, United States (USA)
• Founded year: 1931
• Headcount: 1-10
• LinkedIn: harbor-sales-co-inc

Harbor Sales Co Inc, based in Sudlersville, Maryland, has been a player in the manufacturing and distribution sector since its founding in 1931. The company specializes in panels, hardware, tools, and flexible media, catering primarily to businesses in construction, signage, and manufacturing. Among their product offerings, they provide a variety of panels that include plastic options, showcasing their involvement in the plastic manufacturing industry. Harbor Sales is committed to delivering custom services with quick turnaround times, ensuring that their clients receive the products they need efficiently. Their operational focus on precision cutting and panel optimization further highlights their capabilities in handling plastic materials, making them a notable entity in this field.

20. Fibox Enclosures

• Website: fiboxusa.com
• Ownership type: Private
• Headquarters: Glen Burnie, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1991
• Headcount: 201-500
• LinkedIn: fibox-enclosures-usa

Fibox Enclosures, based in Glen Burnie, Maryland, is a private manufacturer established in 1991. The company specializes in non-metallic polycarbonate enclosures designed to protect electronic components from environmental hazards. Fibox's products are crucial for industries such as industrial automation, telecommunications, solar power, and more. They offer over 1,500 variations of enclosures, showcasing their ability to meet complex requirements through customization options like CNC machining and digital printing. Fibox is committed to quality, as evidenced by their ISO-9000 certification and their recent recognition with an EcoVadis Sustainability Assessment Award. Their enclosures are UL-listed, ensuring compliance with safety standards, which further solidifies their position in the market.

Plastic Manufacturing Insights: Key Companies in Maryland

Company	Headquarter	Size	Founded	Ownership
Precision Plastics Inc.	Beltsville, Maryland, United States (USA)	11-50	1973	Private
Adell Corporation	Baltimore, Maryland, United States (USA)	51-200	1958	Private
Tim Plastics, Inc.	North East, Maryland, United States (USA)	201-500	1985	Private
Maryland Thermoform Corporation	Baltimore, Maryland, United States (USA)	51-200	1972	Private
Fawn Industries	Cockeysville, Maryland, United States (USA)	11-50	1950	Private
Intercontinental Export Import, INC	Columbia, Maryland, United States (USA)	11-50	1987	Private
Niche Polymer LLC	Columbia, Maryland, United States (USA)	51-200	2008	Private
Fluoron	Elkton, Maryland, United States (USA)	11-50	1993	Family Owned
C. R. Daniels, Inc.	Ellicott City, Maryland, United States (USA)	51-200	1918	Private
dlhBOWLES	Columbia, Maryland, United States (USA)	1001-5000	1961	Corporate
DWE, Inc.	Belcamp, Maryland, United States (USA)	51-200	1990	Private
Mann-Pak, Inc.	Baltimore, Maryland, United States (USA)	11-50	1987	Family Owned
Maryland Plastics	Federalsburg, Maryland, United States (USA)	51-200	1939	Corporate
Composites USA	North East, Maryland, United States (USA)	11-50	1982	Corporate
The Nelson Company	Baltimore, Maryland, United States (USA)	51-200	1911	Corporate
Kols Containers, Inc.	Nottingham, Maryland, United States (USA)	11-50	1910	Private
Plasticoid Co Inc	Elkton, Maryland, United States (USA)	1-10	1946	Private
VacPac, Inc.	Middle River, Maryland, United States (USA)	11-50	1968	Private
Harbor Sales Co Inc	Sudlersville, Maryland, United States (USA)	1-10	1931	Private
Fibox Enclosures	Glen Burnie, Maryland, United States (USA)	201-500	1991	Private

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