Keystone Security Services LLC
Commercial services · Philadelphia, Pennsylvania
Find prospects like Keystone Security Services LLC
Get a list of similar companies, matched by industry, size and location, ready for outreach.
Free sample of 25 companies by email within one business day. No spam: we only use your email for this request.
Products & Services
About Keystone Security Services LLC
Keystone Security Services LLC is listed as a company based in Philadelphia, Pennsylvania, United States, operating in Office service, employing 21-50 people, reporting $1M-$5M in annual revenue and classified under Investigation and Security Services.
Its primary NAICS classification is 561612 (Security Guards and Patrol Services). Keystone Security Services LLC is one of 784,164 Industrial & mechanical companies listed in Pennsylvania.
Business Contact Information
- Address
- 1704 Locust Street 2nd Floor William L. Fleisher, Philadelphia, Pennsylvania, 19103, 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
- 32 (21-50)
- Annual Revenue
- $2.8M ($1M-$5M)
Keystone Security Services LLC: frequently asked questions
What does Keystone Security Services LLC do?
Keystone Security Services LLC is listed as a company based in Philadelphia, Pennsylvania, United States, operating in Office service, employing 21-50 people, reporting $1M-$5M in annual revenue and classified under Investigation and Security Services.
Where is Keystone Security Services LLC located?
Keystone Security Services LLC is headquartered at 1704 Locust Street 2nd Floor William L. Fleisher, Philadelphia, Pennsylvania, 19103, United States.
How many employees does Keystone Security Services LLC have?
Keystone Security Services LLC has about 32 employees (the 21-50 range).
What is Keystone Security Services LLC's annual revenue?
Keystone Security Services LLC's annual revenue is estimated at $2.8M (the $1M-$5M range).
What industry is Keystone Security Services LLC in?
Keystone Security Services LLC is in the Industrial & mechanical / Commercial services industry, and its primary NAICS code is 561612 (Security Guards and Patrol Services).
Largest companies in Pennsylvania
Largest industrial & mechanical companies
Manufacturing sales in Pennsylvania, 2026
In Pennsylvania, Factur's 2026 study counted 44 manufacturing quotes worth $1.6M and 10 purchase orders over 12 months: 23% of quotes became orders, against 21% nationally. See the Pennsylvania data.
Own this business?
Keep your profile accurate — or ask us to take it down. We acknowledge requests within 7 days and resolve them within 30 days.
Prefer email? privacy@facturmfg.com
Add this badge to your website — show visitors you're listed on Factur Data.