Catalyst Connection
Find manufacturersAdd your company
Catalyst Connection

Copyright 2026 Catalyst Connection

All rights reserved

Directory

  • All manufacturers
  • Maryland manufacturers
  • New York manufacturers
  • Ohio manufacturers
  • Pennsylvania manufacturers
  • West Virginia manufacturers

Company

  • About us
  • Blog
  • Contact us

Support

  • Terms of service
  • Privacy policy

Stay up to date

Get regional manufacturing news, events, and resources from Catalyst Connection.

Subscribe to the newsletter
Back to results
  1. Home
  2. ›
  3. Manufacturers
  4. ›
  5. Ohio
  6. ›
  7. Koester Corporation
Koester Corporation logo

Koester Corporation

Claim this profile
Napoleon, OH 43545
419-599-1650
Visit website

At a glance

Employee size
51-200
Organization type
Privately Held
Headquarters
Napoleon, OH
Founded
1970

About

Since its founding in Defiance, Ohio, in 1970, Koester Corporation has grown into a 50-employee manufacturer known for keeping engineering and production work in-house. The company now operates from a 62,400-square-foot facility in Napoleon, where it develops industrial control systems and custom mechanical solutions for manufacturers. Koester’s project managers stay with customers from estimating through shipping, giving each job a consistent point of contact.

Capabilities and markets

Products

Manufacturing processes

Materials worked

Service offerings

Economic activities

End markets served

Energy segments

Grid Components

Directory supply chains

Classification

NAICS codes

Certifications and registrations

Certifications

  • UL 508A

  • UL 698A

  • Registered Professional Engineering Firm

    Registration

Related manufacturers

  • Custom Craft Controls, Inc logoCustom Craft Controls, IncCustom Craft Controls is a family business founded in Akron in 1986 by father-and-son team Ken and Mike Dunaway. Today, Mike’s son Kevin Dunaway leads the company, which serves industrial customers with engineered control systems and panel fabrication from concept through integration.AKRON, OH
  • AFI Cybernetics Corporation logoAFI Cybernetics CorporationFounded by Ken Doyle in an Elmira, New York garage in 1984, AFI Cybernetics Corporation has grown into a 16,500-square-foot production operation while remaining rooted in the practical, hands-on origins of its early years. The company builds industrial control systems for manufacturers, supporting projects from initial engineering through final testing.ELMIRA, NY
  • Auto-Tronic Control Co logoAuto-Tronic Control CoEstablished in 1946, Auto-Tronic Control Co. is a Perrysburg manufacturer known for handling unusual industrial control needs under one roof. Its 28,000-square-foot facility supports custom control panels for regulated industries and manufacturers across North America and Europe, with the company fabricating enclosures in-house so systems arrive ready for installation.NORTHWOOD, OH
  • Logan Machine Company logoLogan Machine CompanyRooted in Akron since Earl Wolfe started the company in a garage in 1958, Logan Machine Company remains a family-owned business now run by the fourth generation of the Wolfe/Schoenbaechler family. Its large Akron operation is known for carrying custom industrial projects through from engineering to machine assembly, with the work kept under one roof.AKRON, OH
More manufacturers in Ohio

Contact information

Website

koester-corp.com

Emails

  • info@ex.comkoester-corp.com

Phone numbers

  • 419-599-1650
  • 419-599-1677

Social

Locations

Koester Corporation location map for 813 N PERRY ST

813 N Perry St

Napoleon, OH 43545

Henry County

Get directions
Koester Corporation location map for 1650 COMMERCE DR

1650 Commerce Dr

Napoleon, OH 43545

Henry County

Get directions
1 of 2

Is this your company?

Claim this profile to keep it up to date, showcase your capabilities, and reach new buyers.

Claim this profile

Directory source

Source
koester-corp.com
Updated
Sep 2026