Insights

High-Precision Expertise Overton Chicago Gear specializes in manufacturing high-precision gears and gearboxes designed for demanding industries such as oil and gas, renewable energy, and power generation. This focus on mission-critical components offers significant cross-selling opportunities with OEMs and large industrial firms seeking durable, reliable gear solutions.

Legacy & Custom Solutions With a history dating back to 1888, OCG's extensive experience in creating customized gear profiles positions them well for clients needing specialized, tailored manufacturing capabilities, especially in sectors requiring bespoke gear configurations for complex applications.

Industry Diversification Serving diverse markets including mining, rail, and renewable energy, OCG's broad industry presence allows targeting multiple verticals, increasing the likelihood of identifying prospective clients with varying, high-precision gear needs.

Manufacturing Capacity With over 200 employees across three facilities and a revenue estimated between $25 million and $50 million, Overton Chicago Gear is positioned as a scalable manufacturer, open to taking on larger, more complex projects from OEMs and integrators seeking high-quality gear components.

Overton Chicago Gear Tech Stack

Overton Chicago Gear uses 8 technology products and services including Open Graph, CookieYes, MySQL, and more. Explore Overton Chicago Gear's tech stack below.

  • Open Graph
    Content Management System
  • CookieYes
    Cookie Compliance
  • MySQL
    Database
  • jQuery Migrate
    Javascript Libraries
  • jQuery
    Javascript Libraries
  • reCAPTCHA
    Security
  • Contact Form 7
    Web Platform Extensions
  • Apache HTTP Server
    Web Servers

Media & News

Overton Chicago Gear's Email Address Formats

Overton Chicago Gear uses at least 1 format(s):
Overton Chicago Gear Email FormatsExamplePercentage
FLast@oc-gear.comJDoe@oc-gear.com
95%
Last@oc-gear.comDoe@oc-gear.com
2%
First@oc-gear.comJohn@oc-gear.com
2%
First.Last@oc-gear.comJohn.Doe@oc-gear.com
1%

Frequently Asked Questions

Where is Overton Chicago Gear's headquarters located?

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Overton Chicago Gear's main headquarters is located at 530 S Westgate St, Addison, IL 60101, US. The company has employees across 1 continents, including North America.

What is Overton Chicago Gear's phone number?

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You can contact Overton Chicago Gear's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Overton Chicago Gear's official website and social media links?

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Overton Chicago Gear's official website is oc-gear.com and has social profiles on LinkedIn.

How much revenue does Overton Chicago Gear generate?

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As of October 2025, Overton Chicago Gear's annual revenue is estimated to be $21M.

What is Overton Chicago Gear's SIC code NAICS code?

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Overton Chicago Gear's SIC code is 3566 - Speed Changers, Industrial High-Speed Drives, and Gears NAICS code is 333 - Machinery Manufacturing.

How many employees does Overton Chicago Gear have currently?

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As of October 2025, Overton Chicago Gear has approximately 201 employees across 1 continents, including North America. Key team members include Director: B. B.General Manager: M. M.Reverse Engineering And Process Design: B. S.. Explore Overton Chicago Gear's employee directory with LeadIQ.

What industry does Overton Chicago Gear belong to?

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Overton Chicago Gear operates in the Machinery Manufacturing industry.

What technology does Overton Chicago Gear use?

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Overton Chicago Gear's tech stack includes Open GraphCookieYesMySQLjQuery MigratejQueryreCAPTCHAContact Form 7Apache HTTP Server.

What is Overton Chicago Gear's email format?

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Overton Chicago Gear's email format typically follows the pattern of FLast@oc-gear.com. Find more Overton Chicago Gear email formats with LeadIQ.

When was Overton Chicago Gear founded?

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Overton Chicago Gear was founded in 1888.

Overton Chicago Gear

Machinery ManufacturingUnited States201-500 Employees

With history dating to 1888, OCG manufactures large, high-precision gears that are designed to meet a wide range of requirements for the most challenging applications in the oil and gas, minerals and mining, rail, renewable energy, power generation and infrastructure industries. Our customers require high-precision gears and gearboxes that are durable and reliable enough to withstand harsh operating environments. 

OCG designs and manufactures custom gears in a wide variety of profiles, including herringbone, bevel, helical, spur and double enveloping worm gears, as well as gearboxes. OCG employs more than 200 people at three manufacturing facilities in the Chicago area.  See www.oc-gear.com.  

On December 7th, 2012 H-D Advanced Manufacturing Company (HDAM) acquired OCG.  Based in the Pittsburgh, PA area, H-D Advanced Manufacturing Company (HDAM) is a newly formed enterprise led by two highly successful manufacturing executives. HDAM seeks to acquire operating companies in the severe heavy-duty, high precision-engineered industrial manufacturing sector targeting “mission critical” products and applications. HDAM is led by Dale Mikus, Senior VP – CFO, former VP - CFO of Latrobe Specialty Metals, Copperweld Corporation and Dresser.  HDAM strives to enable its customers to be leaders in their respective industries by providing world class products, excellent customer service, highly responsive lead times and efficient manufacturing operations. The goal is to build HDAM into a $1.0 Billion + family of engineered products companies over the next 5 years.

Section iconCompany Overview

Headquarters
530 S Westgate St, Addison, IL 60101, US
Phone number
SIC Code
3566 - Speed Changers, Industrial High-Speed Drives, and Gears
NAICS Code
333 - Machinery Manufacturing
Founded
1888
Employees
201-500

Section iconMedia & News

Section iconFunding & Financials

  • $25M$50M

    Overton Chicago Gear's revenue is estimated to be in the range of $25M$50M

Section iconFunding & Financials

  • $25M$50M

    Overton Chicago Gear's revenue is estimated to be in the range of $25M$50M

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