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Products & Services
About Held Lab
Held Lab is listed as a company operating in Office service, employing 1-5 people, reporting $1M-$5M in annual revenue, classified under Research and Development in Nanotechnology and based in St. Louis, Missouri, United States.
Its primary NAICS classification is 541713 (Research and Development in Nanotechnology). Held Lab is one of 356,656 Industrial & mechanical companies listed in Missouri.
Business Contact Information
- Phone
- +1 (314) 7470571
- Website
- heldlab.org
- Address
- 4523 Clayton Ave, St. Louis, Missouri, 63110, United States
Industry & Classification
- Industry
- Industrial & mechanical
- Sector
- Commercial services
- Segment
- Office service
NAICS Codes
- 54Professional, Scientific, and Technical Services
- 5417Scientific Research and Development Services
- 541713Research and Development in Nanotechnology
SIC Codes
- 37Transportation Equipment
- 372Aircraft And Parts
- 3721Airplane Mfg.
Company Details
- Employees
- 4 (1-5)
- Annual Revenue
- $1.8M ($1M-$5M)
Held Lab: frequently asked questions
What does Held Lab do?
Held Lab is listed as a company operating in Office service, employing 1-5 people, reporting $1M-$5M in annual revenue, classified under Research and Development in Nanotechnology and based in St. Louis, Missouri, United States.
Where is Held Lab located?
Held Lab is headquartered at 4523 Clayton Ave, St. Louis, Missouri, 63110, United States.
How many employees does Held Lab have?
Held Lab has about 4 employees (the 1-5 range).
What is Held Lab's annual revenue?
Held Lab's annual revenue is estimated at $1.8M (the $1M-$5M range).
What industry is Held Lab in?
Held Lab is in the Industrial & mechanical / Commercial services industry, and its primary NAICS code is 541713 (Research and Development in Nanotechnology).
How can I contact Held Lab?
Its website is heldlab.org and its phone number is +1 (314) 7470571.
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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