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About Quest Diagnostics
This profile covers Quest Diagnostics, a company based in Temecula, California, United States, employing 11-20 people, reporting $1M-$5M in annual revenue and classified under Medical and Diagnostic Laboratories.
Its primary NAICS classification is 621511 (Medical Laboratories). Quest Diagnostics is one of 7,660,543 companies listed in California.
Business Contact Information
- Address
- 31515 Rancho Pueblo Rd, Temecula, California, 92592, United States
Industry & Classification
NAICS Codes
- 62Health Care and Social Assistance
- 6215Medical and Diagnostic Laboratories
- 621511Medical Laboratories
SIC Codes
- 80Health Services
- 807Medical And Dental Laboratories
- 8071Medical Laboratories
Company Details
- Employees
- 18 (11-20)
- Annual Revenue
- $1.1M ($1M-$5M)
Quest Diagnostics: frequently asked questions
What does Quest Diagnostics do?
This profile covers Quest Diagnostics, a company based in Temecula, California, United States, employing 11-20 people, reporting $1M-$5M in annual revenue and classified under Medical and Diagnostic Laboratories.
Where is Quest Diagnostics located?
Quest Diagnostics is headquartered at 31515 Rancho Pueblo Rd, Temecula, California, 92592, United States.
How many employees does Quest Diagnostics have?
Quest Diagnostics has about 18 employees (the 11-20 range).
What is Quest Diagnostics's annual revenue?
Quest Diagnostics's annual revenue is estimated at $1.1M (the $1M-$5M range).
What industry is Quest Diagnostics in?
Quest Diagnostics's primary NAICS code is 621511 (Medical Laboratories).
Largest companies in California
Largest companies on Factur
Manufacturing sales in California, 2026
In California, Factur's 2026 study counted 98 manufacturing quotes worth $14.7M and 18 purchase orders over 12 months: 18% of quotes became orders, against 21% nationally. See the California data.
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