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Roncelli Plastics Information

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Roncelli Plastics has been an industry pioneer since 1969, as a thermoplastics and composites manufacturer headquartered in Monrovia, California, with offices in San Jose, California; Dallas, Texas; Tampa, Florida; Chandler, Arizona and Cincinnati, Ohio. Trusted by the world’s most prestigious brands for our leading edge technology, innovative operations, technical expertise and knowledgeable partnership. Roncelli Plastics is a best in class contract manufacturer of Engineered Plastics parts and components for critical applications in the Aerospace, Bio Medical, Life Science & Space, Semiconductor, Defense, Oil & Gas Sectors. We partner with clients from prototype design through full production. Our complete capabilities portfolio includes rapid prototype machining, CNC machining, Injection Molding, 3D Printing and Clean Room Assembly. Certifications Include: ISO9001 AS9100D ISO13485 ISO27001 ITAR

Website http://www.roncelli.com
Revenue $22 million
Funding $1 million
Employees 120 (49 on RocketReach)
Founded 1969
Address 330 W Duarte Rd., Monrovia, California 91016, US
Phone +1 626-803-1108
Technologies
Industry Plastics Manufacturing, Manufacturing General, Engineered Plastics Machining and Part Manufacturing, Manufacturing, Climate Controlled CNC Milling & Turning, Rapid Prototyping & Production, Clean Room Assembly, 3D Printing, Die Cutting & Stamping, Turnkey Assembly, AS9100, ISO-9001, & ISO 13485 Certified Co.
Web Rank 20 Million
Keywords Plastic Materials, Manufacturing, Thermoplastics, Polymer Manufacturing, Composites, Plastic Fabrication, Plastic Parts Manufacturing, Plastic Product Design, Custom Plastic Fabrication, Plastic Component Manufacturing, Injection Molding, High Performance Plastics, Plastic Extrusion, Engineering Plastics, Roto Molding, Thermoforming, Plastic Recycling, Plastic Distribution
Competitors PLASKOLITE, Laird Plastics, Total Plastics, Int'l, Freelin-Wade, TAP Plastics, Inc., AEP SPAN, Cobra Plastics, SGS Polymer Solutions Incorporated, Grafix Plastics, Industrial Plastics of Mpls., Inc +35 more (view full list)
SIC SIC Code 35 Companies, SIC Code 51 Companies, SIC Code 308 Companies, SIC Code 30 Companies
NAICS NAICS Code 424610 Companies, NAICS Code 42 Companies, NAICS Code 325 Companies, NAICS Code 4246 Companies, NAICS Code 42461 Companies, NAICS Code 32 Companies, NAICS Code 424 Companies

Roncelli Plastics Questions

The Roncelli Plastics annual revenue was $22 million in 2026.

Desiree Guerrero is the Director of Human Resources of Roncelli Plastics.

49 people are employed at Roncelli Plastics.

Roncelli Plastics is based in Monrovia, California.

The NAICS codes for Roncelli Plastics are [424610, 42, 325, 4246, 42461, 32, 424].

The SIC codes for Roncelli Plastics are [35, 51, 308, 30].

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