Mainline Security Inc.
San Francisco, CA
- UEI
- G42FZTQ2NGL1
- CAGE
- 3F4Y6
- Primary NAICS
- 561622 Locksmiths
- SAM.gov registration
- Active through
Company facts
- FY2025 rankings
- Self-certified in SAM.gov
- Entity structure
- Corporate Entity (Not Tax Exempt)
- SAM.gov registration date
- Physical address
- 617 7th St, San Francisco, CA 94103, USA
- Website
- mainline-security.com
- Employees
- 11-50
- Estimated annual revenue
- $1M-$10M
- Industry
-
- Industrials
- Commercial & Professional Services
- Professional Services
- SIC code
- 76 Miscellaneous Repair Services
- Profiles
Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated .
Contract obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2027 To date | $0 |
| FY2026 | $0 |
| FY2025 | $2,342 |
| FY2024 | $7,420 |
| FY2023 | $7,574 |
Contract awards
Latest 5 listed here. See the rest on GovTribe.
Similar vendors
| Vendor | Location | Primary NAICS |
|---|---|---|
| A & B Lock & Key | Las Vegas, NV | 561621 Security Systems Services (except Locksmiths) |
| Harold's Key Shop, Inc. | Whittier, CA | 561622 Locksmiths |
| Accurate Security Pros, Inc. | San Diego, CA | 561622 Locksmiths |
| Instant Hardware Delivery LLC | Gaithersburg, MD | 813990 Other Similar Organizations (except Business, Professional, Labor, and Political Organizations) |
| Anderson Lock Company, LTD | Des Plaines, IL | 423710 Hardware Merchant Wholesalers |
About the company
Mainline Security Inc., doing business as Mainline Security Inc., is a licensed locksmith company based in San Francisco that has been providing locksmith services since 1971. Their services include security and investigations. Mainline Security Inc. is registered as a corporate entity (not tax exempt), for-profit organization, and Subchapter S Corporation to receive federal contract awards from the U.S. government.
Mainline Security Inc. has received several prime federal contract awards from the Department of the Treasury United States Mint to provide lock and door services, preventative maintenance and repair services for restricted key systems, and general locksmith services. Specific awards include a $39,573.50 purchase order for providing locks and door services with a completion date of June 30, 2026, a $3,023.00 purchase order for preventative maintenance and repair services for a restricted Medeco key system completed on September 28, 2021, and a $6,800.00 purchase order for general locksmith services completed on June 30, 2020. All of these awards were not designated with any set-aside categories. The descriptions highlight Mainline Security Inc.'s expertise in providing locksmith services, key system maintenance and repair, and general security services to federal agencies through prime contract vehicles.
SBA capabilities narrative
DOOR AND LOCK HARDWARE SALES AND SERVICE COMPANY; SELL AND DISTRIBUTE SCHLAGE, MEDECO, CHICAGO ILLINOIS AND SECURITY LATCH PRODUCTS; FURNISHERS OF KEYBLANKS, DOOR CLOSERS AND LOCKING DEVICES OF ALL TYPES. SUPPLIERS OF HIGH SECURITY, PROPIETARY KEY SYSTEMS
Quick answers
Is Mainline Security Inc. registered in SAM.gov?
Yes. Mainline Security Inc.'s SAM.gov registration is active through March 19, 2027.
What is Mainline Security Inc.'s CAGE code?
Mainline Security Inc.'s CAGE code is 3F4Y6, and its Unique Entity ID (UEI) is G42FZTQ2NGL1.
How much has Mainline Security Inc. received in federal contracts?
Federal contracts obligated $2,342 to Mainline Security Inc. in fiscal year 2025 and $17,336 in fiscal years 2023 through 2027.
How does Mainline Security Inc. rank among federal contractors?
Mainline Security Inc. ranked #58 in NAICS 561622 in FY2025.
What is Mainline Security Inc.'s most recent federal award?
Mainline Security Inc.'s most recent federal contract award is Contractor will provide lock(S) and door svcs (2091JE21P00038), from United States Mint, on June 24, 2021.
On GovTribe
See Mainline Security Inc.'s full federal record
- Federal contract awards
- Funding analysis by agency, NAICS and set-aside
- Similar vendors