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Products & Services
About Greater Shield
This profile covers Greater Shield, a company based in Brooklyn, New York, United States, operating in Office service, employing 251-500 people, reporting $50M-$100M in annual revenue and classified under Investigation and Security Services.
Its primary NAICS classification is 561612 (Security Guards and Patrol Services). Greater Shield is one of 1,507,691 Industrial & mechanical companies listed in New York.
Business Contact Information
- Phone
- +1 (718) 3883844
- Website
- greatershield.com
- Address
- 597 Flushing Ave, Brooklyn, New York, 11206, United States
Industry & Classification
- Industry
- Industrial & mechanical
- Sector
- Commercial services
- Segment
- Office service
NAICS Codes
- 56Administrative and Support and Waste Management and Remediation Services
- 5616Investigation and Security Services
- 561612Security Guards and Patrol Services
SIC Codes
- 73Business Services
- 738Miscellaneous Business Services
- 7381Investigation Services
Company Details
- Employees
- 475 (251-500)
- Annual Revenue
- $91.4M ($50M-$100M)
Greater Shield: frequently asked questions
What does Greater Shield do?
This profile covers Greater Shield, a company based in Brooklyn, New York, United States, operating in Office service, employing 251-500 people, reporting $50M-$100M in annual revenue and classified under Investigation and Security Services.
Where is Greater Shield located?
Greater Shield is headquartered at 597 Flushing Ave, Brooklyn, New York, 11206, United States.
How many employees does Greater Shield have?
Greater Shield has about 475 employees (the 251-500 range).
What is Greater Shield's annual revenue?
Greater Shield's annual revenue is estimated at $91.4M (the $50M-$100M range).
What industry is Greater Shield in?
Greater Shield is in the Industrial & mechanical / Commercial services industry, and its primary NAICS code is 561612 (Security Guards and Patrol Services).
How can I contact Greater Shield?
Its website is greatershield.com and its phone number is +1 (718) 3883844.
What companies are similar to Greater Shield?
Other large industrial & mechanical companies in New York include New York State, New York State Department of Health, City of New York and International Business Machines Corp.
Largest industrial & mechanical companies in New York
Largest companies in New York
Largest industrial & mechanical companies
Manufacturing sales in New York, 2026
In New York, Factur's 2026 study counted 53 manufacturing quotes worth $5M and 8 purchase orders over 12 months: 15% of quotes became orders, against 21% nationally. See the New York data.
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