This searchable directory contains detailed company profiles with a wealth of information. The data can be searched by multiple terms including industries served, certifications, core competencies, location, export capabilities, NAICS codes and more. The search results can then be exported as a csv file, compatible with excel.

This free website's search result frequently ranks higher than many companies' own websites and is searched by companies from around the world.

What Primary Industry does your business operate within? Select from the list above.
The name of the individual who is the head of the company. For example the name of the President, Chief Executive Officer or Owner
Your company's main email. For example: [email protected]
The main phone number for your company.
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Upload logo image file.
Enter the name of the person completing this form.
Your company's main plant or office street address. Example: 1234 Industry Drive
The city in McHenry County where your company's main office or plant is located.
This should be Illinois. If your company no longer has a plant in McHenry County, it cannot be listed in this directory.
This should be McHenry County, Illinois. If your company no longer has a plant in McHenry County, it cannot be listed in this directory.
Include at least the 5-digit zip code and preferably the 9-digit zip code: Example 60050-1234
PO Box, if applicable.
What is your business' Primary Industry? Please select up to 4 Additional Industries your company operates within.
Identify your company's core competencies. List up to 6, separated by a comma.
Use Ctrl+ Click to select multiple items. Example: Food Service, Power Distribution, Construction Equipment, Pharma/Medical, etc.
North American Industry Classification System code. This 6-digit number is assigned to a company and is composed of the following: The first two digits designate economic activity group. Manufacturing sector codes begin with 31, 32 or 33. The third digit designates the subsector, the forth digit designates the industry group, the fifth digit designates NAICS industry and the sixth digit designates the national industry. If you do not know your NAICS code, please enter a description of what you do in the "Primary NAICS Description" field and a code will be assigned. Example: 334418
A word description of the 6-digit NAICS code. For the example above of 334418 – Printed Circuit Electronic Assembly Manufacturing
Your company may be engaged in additional activities that justify having a secondary code. This would also be a 6-digit code. If you do not have or know your secondary NAICS code, please leave blank or enter a description of what you do in the "Secondary NAICS Description" field and a code will be assigned if needed
A word description of the 6-digit NAICS code.
Standard Industrial Classification. This 4-digit code has, for the most part, been superseded by NAICS codes. If you know your SIC code, but not your NAICS code, or vice versa, a conversion can be made. Example: 3672 SIC is similar to 334418 NAICS.
Word description of the 4-digit SIC code. For the example above of 3672: Printed Circuit Boards
Separate entries with a comma.
If your company is ISO 9001, QS 9000, ISO 16949, AS 9100, ISO 13485, etc. certified, note the particular designations here. If you are only compliant (but not certified) please note the distinction. Having a quality certification or being compliant is often used as a decision factor by companies seeking your products or services.
Indicate any company Brand Names. Separate entries with a comma.
NAICS or SIC descriptions often do not accurately describe the activities of your company. You have 255 characters here to provide more detail and keywords.
If your company is a subsidiary or division of a larger company, enter the company name here, otherwise leave blank.
List the street number and name of your parent company's mailing address if it applies. Example: 4321 Mega Metal Way
Fields marked with a star have to be filled in!

SIC/NAICS Codes

If you are unsure of your NAICS and/or SIC code, click to view this helpful list.

SIC/NAICS

DIRECTORY UPDATES UNDERWAY

We are currently updating the directory to provide you with the most complete information regarding McHenry County manufacturers.
Please contact us if you need to update your company's listing.

Check back soon!
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Questions?
Call (815) 893-0895

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620 Dakota Street • Crystal Lake, IL 60012
(815) 893-0895