Is C-Line Products Made in USA?
Last checked Oct 10, 2026 · 5 verified products · see the evidence
Yes — Made in USA
C-Line Products manufactures its products in the United States — specifically in Mount Prospect, IL. This is based on the brand's public manufacturing claims; details below.
Top verified pick
C-Line Traditional Standard Weight Poly Sheet Protectors, 8.5 x 11 Inches, 100 per Box100% American ScoreAmerican Score
Average American Score across 5 verified products — scores ≥70% are shown on this site.
Manufacturing Details
- Made in
- Mount Prospect, IL
- Headquarters
- Mount Prospect, IL
- Location detail
- Specific city confirmed
- History
- Long-established (50+ years)
- Founded
- 1948
How we verified C-Line Products
Most recent check: Oct 10, 2026
From the brand's website
We re-read c-lineproducts.com on Sep 29, 2026 and did not find an explicit statement about where its products are made. This page relies on the other evidence below.Amazon listings
We read the live Amazon listing for 5 of the 5 C-Line Products products on this page (most recently Oct 10, 2026). None of them states where the product is made, so these products rely on the brand-level evidence above.
These checks are run by our software on a schedule: brand websites are re-read about every three weeks, Amazon listings weekly, and news is scanned monthly. Every flag is checked against its original source before anything on this page changes. How the American Score works.
About C-Line Products
C-Line Products has manufactured office organizational products in Des Plaines, Illinois since 1948 — sheet protectors, report covers, badge holders, and filing supplies produced in the USA with American materials by a company that has never moved manufacturing overseas.
Heritage & History
C-Line Products was founded in 1948 in Des Plaines, Illinois, just outside Chicago, as a manufacturer of plastic office supply products. The company built its reputation on product quality that outperformed the competition: sheet protectors that didn't yellow with age, report covers with secure-but-not-destructive binding, name badge holders with professional finishes.
C-Line has maintained its Des Plaines manufacturing for over 75 years — an unusual commitment in a category where most competitors moved production to Asia in the 1990s.
Made in Des Plaines, Illinois
All C-Line Products are manufactured in Des Plaines, Illinois, using American-sourced plastic resins and materials. The company extrudes, cuts, and assembles its sheet protectors, report covers, badge holders, and filing products entirely at the Illinois facility.
C-Line sheet protectors are made from polypropylene — a material that stays clear over time rather than yellowing like PVC alternatives. For organizations that buy office supplies in volume and care about both product quality and domestic sourcing, C-Line Products provides 75+ years of Des Plaines manufacturing. Quality office products made in Illinois.
American-Made C-Line Products Products
USA Verified
USA Verified
USA Verified
Frequently Asked Questions
Is C-Line Products made in the USA?
Yes. C-Line Products is made in the United States, manufactured in Mount Prospect, IL. C-Line Products has manufactured office organizational products in Des Plaines, Illinois since 1948. All sheet protectors, report covers, and organizational supplies made in the USA. Company has never moved manufacturing overseas.
Where is C-Line Products made?
C-Line Products is made in Mount Prospect, IL. The company is headquartered in Mount Prospect, IL.
Which C-Line Products products are made in the USA?
We carry 5 verified American-made C-Line Products products across Office & School. Every listing links directly to a trusted online store with verified manufacturing evidence.