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  7. Harmony Systems & Service, LLC
Harmony Systems & Service, LLC logo

Harmony Systems & Service, LLC

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Piqua, OH 45356
937-778-1082
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At a glance

Employee size
51-200
Organization type
Privately Held
Headquarters
Piqua, OH
Founded
1994

About

Founded in 1994, Piqua’s Harmony Systems & Service is a custom plastic injection molder that also carries products through assembly, final pack-out, and distribution. Its 150-plus employees operate 50 presses in a 120,000-square-foot facility, producing everything from ultra-critical automotive lighting parts to consumer-ready products. Harmony has shipped more than 90 million parts and more than one million assembled units annually to customers across North America.

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Certifications

  • Ethical Trading Initiative (ETI) Base Code

    Compliance program

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  • Greenfield Precision Plastics, LLC logoGreenfield Precision Plastics, LLCWith more than 40 years in the industry, Greenfield Precision Plastics is a Greenfield, Ohio injection molder producing plastic parts for automotive, consumer, medical and other demanding applications. The company operates 25 molding presses, uses robotics and at-press vision inspection, and keeps ownership on site every day. That hands-on structure supports the company’s focus on building long-term customer partnerships from design feasibility through production.GREENFIELD, OH
  • Port Erie Plastics logoPort Erie PlasticsFamily-owned Port Erie Plastics has molded custom plastic parts in Harborcreek, Pennsylvania, since Henry J. Witkowski founded the company with one injection molding machine in 1953. Today, its 615,000-square-foot complex supports nearly 90 molding machines and about 400 full-time employees, with particular depth in large-part and structural foam production for high-volume OEM programs. An in-house tool room and dedicated project engineers carry programs from mold build or transfer through long-term manufacturing.HARBORCREEK, PA
  • Recto Molded Products logoRecto Molded ProductsEstablished in downtown Cincinnati in 1919 as one of the first U.S. plastics processors, Recto Molded Products now makes custom injection-molded plastic parts and assemblies. Its in-house tool room, engineering staff, and automation work support orders ranging from as few as five parts a year to millions, while the company continues to maintain molds that have been in production for more than 50 years. Recto has also cut its facility’s electricity use in half and gas use by 90% since 2005 through practical energy improvements.CINCINNATI, OH
More manufacturers in Ohio

Contact information

Website

harmonysysandsvc.com

Phone numbers

  • 937-778-1082
  • 937-570-1635

Social

Locations

Harmony Systems & Service, LLC location map for 1711 COMMERCE DR

1711 Commerce Dr

Piqua, OH 45356

Miami County

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Directory source

Source
harmonysysandsvc.com
Updated
Sep 2026