Semco Plastic
Machinery · St. Louis, Missouri
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Products & Services
About Semco Plastic
Semco Plastic Company is primarily engaged in manufacturing plastics products, not elsewhere classified. Semco Plastic is listed as a company operating in Industrial machinery, employing 342 people, classified under Other Miscellaneous Nondurable Goods Merchant Wholesalers and based in St. Louis, Missouri, United States.
Its primary NAICS classification is 424990 (Other Miscellaneous Nondurable Goods Merchant Wholesalers). Semco Plastic is one of 356,656 Industrial & mechanical companies listed in Missouri.
Business Contact Information
- Phone
- (314) 487-4557
- Website
- www.semcoplastics.com
- Address
- 5301 Old Baumgartner Rd, St. Louis, Missouri, 63129, United States
Industry & Classification
- Industry
- Industrial & mechanical
- Sector
- Machinery
- Segment
- Industrial machinery
NAICS Codes
- 42Wholesale Trade
- 424Merchant Wholesalers, Nondurable Goods
- 4249Miscellaneous Nondurable Goods Merchant Wholesalers
- 42499Other Miscellaneous Nondurable Goods Merchant Wholesalers
- 424990Other Miscellaneous Nondurable Goods Merchant Wholesalers
- 32
- 326Plastics and Rubber Products Manufacturing
- 3261Plastics Product Manufacturing
- 32619Other Plastics Product Manufacturing
- 326199All Other Plastics Product Manufacturing
SIC Codes
- 51Wholesale Trade-non-durable Goods
- 519Miscellaneous Non-durable Goods
- 5199Other Misc. Nondurable Goods Merchant Wholesalers
- 30Rubber And Miscellaneous Plastics Products
- 308Miscellaneous Plastics Products
- 3069All Other Plastics Product Mfg.
Company Details
- Employees
- 342
Semco Plastic: frequently asked questions
What does Semco Plastic do?
Semco Plastic Company is primarily engaged in manufacturing plastics products, not elsewhere classified. Semco Plastic is listed as a company operating in Industrial machinery, employing 342 people, classified under Other Miscellaneous Nondurable Goods Merchant Wholesalers and based in St.
Where is Semco Plastic located?
Semco Plastic is located at 5301 Old Baumgartner Rd, St. Louis, Missouri, 63129, United States.
How many employees does Semco Plastic have?
Semco Plastic has about 342 employees.
What industry is Semco Plastic in?
Semco Plastic is in the Industrial & mechanical / Machinery industry, and its primary NAICS code is 424990 (Other Miscellaneous Nondurable Goods Merchant Wholesalers).
How can I contact Semco Plastic?
Its website is www.semcoplastics.com and its phone number is (314) 487-4557.
Largest companies in Missouri
Largest industrial & mechanical companies
Manufacturing sales in Missouri, 2026
In Missouri, Factur's 2026 study counted 29 manufacturing quotes worth $962K and 9 purchase orders over 12 months: 31% of quotes became orders, against 21% nationally. See the Missouri data.
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