Company lists · Data refreshed October 2026
Top 13 Security companies based in Baltimore, United States
This directory lists 42 security companies based in Baltimore, United States, with 650 contacts and 79 email addresses for business research and outreach. Across the United States, New York is the largest hub for this category (233 companies); Baltimore has 42.
Security companies provide services, systems, or products that protect people, property, facilities, data, networks, or other assets from security threats. This list covers companies that provide security products or services, including physical security, cybersecurity, monitoring, access control, risk management, and related protection solutions. Ranked by team size, largest first. Data current as of October 1, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 13 largest security companies based in Baltimore, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 68 contacts → | ||||
Strong evidence “DMAC Security is a professional security services provider offering armed and unarmed guards, mobile patrol, fire watch, and surveillance solutions.” Source: RevenueBase Database · checked Oct 1, 2026Thanks. The Data Team will review it. | |||||
| 2 | 61 contacts → | ||||
Strong evidence “For over 30 years, Securityhunter has successfully served commercial and government markets with technologically advanced security solutions.” Source: RevenueBase Database · checked Oct 1, 2026Thanks. The Data Team will review it. | |||||
| 3 | 56 contacts → | ||||
Strong evidence “As an industry leader in safety and security systems design, implementation, and maintenance, we bring the best in the business together for you.” Source: RevenueBase Database · checked Oct 1, 2026Thanks. The Data Team will review it. | |||||
| 4 | 53 contacts → | ||||
Strong evidence “ICS is a locally-owned, private security company providing trustworthy, proactive, hands-on protection services to people and businesses in Maryland, Virginia, and Washington, DC.” Source: RevenueBase Database · checked Oct 1, 2026Thanks. The Data Team will review it. | |||||
| 5 | 12 contacts → | ||||
Strong evidence “At Easter's Lock & Security Solutions, we're dedicated to providing our customers with fast, dependable service at reasonable rates, just as we have since 1953.” Source: RevenueBase Database · checked Oct 1, 2026Thanks. The Data Team will review it. | |||||
| 6 | 12 contacts → | ||||
Strong evidence “Advanced Security Safe & Lock was founded in 2006 and has been family owned and operated ever since.” Source: RevenueBase Database · checked Oct 1, 2026Thanks. The Data Team will review it. | |||||
| 7 | 7 contacts → | ||||
Strong evidence “VDS offers the most advanced mobile security solutions on the market.” Source: RevenueBase Database · checked Oct 1, 2026Thanks. The Data Team will review it. | |||||
| 8 | 6 contacts → | ||||
Strong evidence “Founded in 2013, Pabst Enterprises is a Baltimore, Maryland based company specializing in security and investigative operations and services.” Source: RevenueBase Database · checked Oct 1, 2026Thanks. The Data Team will review it. | |||||
| 9 | 6 contacts → | ||||
Indirect evidence “At S3 Integration, L.L.C, we are proud to offer the power and experience of a large company with the agility, responsiveness, and personal attention of a small company.” Source: RevenueBase Database · checked Oct 1, 2026Thanks. The Data Team will review it. | |||||
| 10 | 5 contacts → | ||||
Strong evidence “American Blackbird is a group of highly experienced senior electronic security professionals.” Source: RevenueBase Database · checked Oct 1, 2026Thanks. The Data Team will review it. | |||||
| 11 | 5 contacts → | ||||
Strong evidence “Mix and match devices from four categories: alarm sensors, security cameras, door/elevator/gate access, and visitor entry.” Source: RevenueBase Database · checked Oct 1, 2026Thanks. The Data Team will review it. | |||||
| 12 | 3 contacts → | ||||
Strong evidence “On Site Police dba On Site Protection is full service security staffing company based out of Baltimore, Maryland since its founding in 2019.” Source: RevenueBase Database · checked Oct 1, 2026Thanks. The Data Team will review it. | |||||
| 13 | 1 contacts → | ||||
Strong evidence “Headquartered in Baltimore, Maryland and servicing the DC, Northern Virginia and Maryland areas, Alpha Cameras and Security is an independently owned and operated security system…” Source: RevenueBase Database · checked Oct 1, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: security companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names security companies.
- Partial evidence
- Its own public description names part of security companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name security companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 13 of 42 security companies based in Baltimore, United States
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Security companies based in Baltimore, United States at a glance
As of Oct 1, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Baltimore, so it is reported there. Company counts and contact totals on this page are exact for Baltimore, over 42 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among security companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Baltimore, United States whose own description of what they do matches “security companies”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names security companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among security companies, and records with no verified work email. Companies headquartered outside Baltimore are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 79 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on October 1, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Security companies by metro in the United States
- Security companies in New York233
- Security companies in Los Angeles187
- Security companies in Houston184
- Security companies in Miami153
- Security companies in Atlanta103
- Security companies in Chicago102
- Security companies in Dallas100
- Security companies in Phoenix85
- Security companies in Austin83
- Security companies in Las Vegas67
- Security companies in Orlando65
- Security companies in San Antonio60
- Security companies in Tampa59
- Security companies in Charlotte58
- Security companies in Denver58
- Security companies in San Diego55
- Security companies in Indianapolis46
- Security companies in Sacramento46
- Security companies in San Francisco45
- Security companies in San Jose45
- Security companies in Jacksonville44
- Security companies in Seattle43
- Security companies in Nashville37
- Security companies in Fort Lauderdale36
- Security companies in Memphis34
- Security companies in Portland34
- Security companies in Washington34
- Security companies in Columbus33
- Security companies in Philadelphia32
- Security companies in Raleigh32
- Security companies in Columbia31
- Security companies in Fort Worth31
- Security companies in Cincinnati30
- Security companies in Brooklyn29
- Security companies in Louisville28
- Security companies in St. Louis28
- Security companies in Albuquerque26
- Security companies in Richmond26
- Security companies in Springfield26
- Security companies in Boca Raton25
- Security companies in Boston25
- Security companies in Irvine25
- Security companies in Minneapolis25
Frequently asked
How many security companies are based in Baltimore, United States?
RevenueBase counts 42 security companies based in Baltimore, United States on this list.
How many contacts and email addresses are available for security companies?
The list includes 650 contacts and 79 email addresses for security companies.
Which city in the United States has the most security companies?
New York leads the United States with 233 headquartered companies, followed by Los Angeles (187) and Houston (184). Baltimore has 42.
Ready to reach these companies? Verified emails and direct dials for all 42 security companies based in Baltimore, United States. Start with a free account, no credit card.
Download this list →Related lists
Security companies by geography
- Security companies based in the United States
- Security companies based in the United Kingdom
- Security companies based in Brazil
- Security companies based in France
- Security companies based in Canada
- Security companies based in Germany
- Security companies based in Italy
- Security companies based in Australia
- Security companies based in the Netherlands
- Security companies based in Mexico
- Security companies based in South Africa
- Security companies based in Spain
About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
More company lists
Company intelligence · public preview
Top 13 security companies based in Baltimore, United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 42 matching company records for security companies based in Baltimore, United States, with 650 tracked contacts and 79 verified work emails.
This public preview shows 13 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 1, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 13 security companies based in Baltimore, United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Dmac Securitydmacsecurity.netHQ: Baltimore, MD, United StatesReported employees: 201-500 | Baltimore, MD, United States | 201-500 | Exact match | 68 contacts → |
“DMAC Security is a professional security services provider offering armed and unarmed guards, mobile patrol, fire watch, and surveillance solutions.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Securityhunter, INCsecurityhunter.comHQ: Baltimore, MD, United StatesReported employees: 11-50 | Baltimore, MD, United States | 11-50 | Exact match | 61 contacts → |
“For over 30 years, Securityhunter has successfully served commercial and government markets with technologically advanced security solutions.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Sciens LS Systems Divisionlssmd.comHQ: Baltimore, MD, United StatesReported employees: 51-200 | Baltimore, MD, United States | 51-200 | Exact match | 56 contacts → |
“As an industry leader in safety and security systems design, implementation, and maintenance, we bring the best in the business together for you.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  ICS Security Servicesicsprotection.comHQ: Baltimore, MD, United StatesReported employees: 51-200 | Baltimore, MD, United States | 51-200 | Exact match | 53 contacts → |
“ICS is a locally-owned, private security company providing trustworthy, proactive, hands-on protection services to people and businesses in Maryland, Virginia, and Washington, DC.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Easter's Lock & Security Solutionseasterslock.comHQ: Baltimore, MD, United StatesReported employees: 11-50 | Baltimore, MD, United States | 11-50 | Exact match | 12 contacts → |
“At Easter's Lock & Security Solutions, we're dedicated to providing our customers with fast, dependable service at reasonable rates, just as we have since 1953.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Advanced Security Safe And Lockampmlock.comHQ: Baltimore, MD, United StatesReported employees: 11-50 | Baltimore, MD, United States | 11-50 | Exact match | 12 contacts → |
“Advanced Security Safe & Lock was founded in 2006 and has been family owned and operated ever since.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Vision Detection Systems LLCvisiondetectionsystems.comHQ: Baltimore, MD, United StatesReported employees: 11-50 | Baltimore, MD, United States | 11-50 | Exact match | 7 contacts → |
“VDS offers the most advanced mobile security solutions on the market.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Pabst Enterprisespabstent.comHQ: Baltimore, MD, United StatesReported employees: 51-200 | Baltimore, MD, United States | 51-200 | Exact match | 6 contacts → |
“Founded in 2013, Pabst Enterprises is a Baltimore, Maryland based company specializing in security and investigative operations and services.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  S3 Integration, L.L.Cs3integration.comHQ: Baltimore, MD, United StatesReported employees: 11-50 | Baltimore, MD, United States | 11-50 | Exact match | 6 contacts → |
“At S3 Integration, L.L.C, we are proud to offer the power and experience of a large company with the agility, responsiveness, and personal attention of a small company.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  American Blackbirdamblackbird.comHQ: Baltimore, MD, United StatesReported employees: 1-10 | Baltimore, MD, United States | 1-10 | Exact match | 5 contacts → |
“American Blackbird is a group of highly experienced senior electronic security professionals.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Saberin Securitysaberinsecurity.comHQ: Baltimore, MD, United StatesReported employees: 1-10 | Baltimore, MD, United States | 1-10 | Exact match | 5 contacts → |
“Mix and match devices from four categories: alarm sensors, security cameras, door/elevator/gate access, and visitor entry.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  On Site Policeonsitepolice.comHQ: Baltimore, MD, United StatesReported employees: 51-200 | Baltimore, MD, United States | 51-200 | Exact match | 3 contacts → |
“On Site Police dba On Site Protection is full service security staffing company based out of Baltimore, Maryland since its founding in 2019.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Alpha Cameras And Securityalphasecuritycameras.comHQ: Baltimore, MD, United StatesReported employees: 1-10 | Baltimore, MD, United States | 1-10 | Exact match | 1 contacts → |
“Headquartered in Baltimore, Maryland and servicing the DC, Northern Virginia and Maryland areas, Alpha Cameras and Security is an independently owned and operated security system…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 13 of 42 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
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Security companies: dataset insights
October 1, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
42 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole United States list rather than for Baltimore, so it is reported there. Company counts and contact totals on this page are exact for Baltimore, over 42 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 1, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Security companies by metro in the United States
- Security companies in New York233
- Security companies in Los Angeles187
- Security companies in Houston184
- Security companies in Miami153
- Security companies in Atlanta103
- Security companies in Chicago102
- Security companies in Dallas100
- Security companies in Phoenix85
- Security companies in Austin83
- Security companies in Las Vegas67
- Security companies in Orlando65
- Security companies in San Antonio60
- Security companies in Tampa59
- Security companies in Charlotte58
- Security companies in Denver58
- Security companies in San Diego55
- Security companies in Indianapolis46
- Security companies in Sacramento46
- Security companies in San Francisco45
- Security companies in San Jose45
- Security companies in Jacksonville44
- Security companies in Seattle43
- Security companies in Nashville37
- Security companies in Fort Lauderdale36
- Security companies in Memphis34
- Security companies in Portland34
- Security companies in Washington34
- Security companies in Columbus33
- Security companies in Philadelphia32
- Security companies in Raleigh32
- Security companies in Columbia31
- Security companies in Fort Worth31
- Security companies in Cincinnati30
- Security companies in Brooklyn29
- Security companies in Louisville28
- Security companies in St. Louis28
- Security companies in Albuquerque26
- Security companies in Richmond26
- Security companies in Springfield26
- Security companies in Boca Raton25
- Security companies in Boston25
- Security companies in Irvine25
- Security companies in Minneapolis25
Questions about this company list
What does Exact match mean for security companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many security companies did RevenueBase find based in Baltimore, United States?
The saved snapshot records 42 matching company records, 650 tracked contacts and 79 verified emails. The public preview displays 13 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 1, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Security companies by geography
- Security companies based in the United States
- Security companies based in the United Kingdom
- Security companies based in Brazil
- Security companies based in France
- Security companies based in Canada
- Security companies based in Germany
- Security companies based in Italy
- Security companies based in Australia
- Security companies based in the Netherlands
- Security companies based in Mexico
- Security companies based in South Africa
- Security companies based in Spain
Cite this list
RevenueBase Data Team. Top 13 security companies based in Baltimore, United States. Snapshot: October 1, 2026. https://revenuebase.ai/companies/security-companies/united-states/baltimore.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 13 security companies based in Baltimore, United States
RevenueBase records 42 matching company records for security companies based in Baltimore, United States, with 650 tracked contacts and 79 verified work emails.
This public preview shows 13 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 1, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 13 security companies based in Baltimore, United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Dmac Securitydmacsecurity.net HQ: Baltimore, MD, United StatesReported employees: 201-500 | Baltimore, MD, United States | 201-500 | Exact match | 68 contacts → |
“DMAC Security is a professional security services provider offering armed and unarmed guards, mobile patrol, fire watch, and surveillance solutions.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Securityhunter, INCsecurityhunter.com HQ: Baltimore, MD, United StatesReported employees: 11-50 | Baltimore, MD, United States | 11-50 | Exact match | 61 contacts → |
“For over 30 years, Securityhunter has successfully served commercial and government markets with technologically advanced security solutions.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Sciens LS Systems Divisionlssmd.com HQ: Baltimore, MD, United StatesReported employees: 51-200 | Baltimore, MD, United States | 51-200 | Exact match | 56 contacts → |
“As an industry leader in safety and security systems design, implementation, and maintenance, we bring the best in the business together for you.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | ICS Security Servicesicsprotection.com HQ: Baltimore, MD, United StatesReported employees: 51-200 | Baltimore, MD, United States | 51-200 | Exact match | 53 contacts → |
“ICS is a locally-owned, private security company providing trustworthy, proactive, hands-on protection services to people and businesses in Maryland, Virginia, and Washington, DC.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Easter's Lock & Security Solutionseasterslock.com HQ: Baltimore, MD, United StatesReported employees: 11-50 | Baltimore, MD, United States | 11-50 | Exact match | 12 contacts → |
“At Easter's Lock & Security Solutions, we're dedicated to providing our customers with fast, dependable service at reasonable rates, just as we have since 1953.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Advanced Security Safe And Lockampmlock.com HQ: Baltimore, MD, United StatesReported employees: 11-50 | Baltimore, MD, United States | 11-50 | Exact match | 12 contacts → |
“Advanced Security Safe & Lock was founded in 2006 and has been family owned and operated ever since.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Vision Detection Systems LLCvisiondetectionsystems.com HQ: Baltimore, MD, United StatesReported employees: 11-50 | Baltimore, MD, United States | 11-50 | Exact match | 7 contacts → |
“VDS offers the most advanced mobile security solutions on the market.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Pabst Enterprisespabstent.com HQ: Baltimore, MD, United StatesReported employees: 51-200 | Baltimore, MD, United States | 51-200 | Exact match | 6 contacts → |
“Founded in 2013, Pabst Enterprises is a Baltimore, Maryland based company specializing in security and investigative operations and services.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | S3 Integration, L.L.Cs3integration.com HQ: Baltimore, MD, United StatesReported employees: 11-50 | Baltimore, MD, United States | 11-50 | Exact match | 6 contacts → |
“At S3 Integration, L.L.C, we are proud to offer the power and experience of a large company with the agility, responsiveness, and personal attention of a small company.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | American Blackbirdamblackbird.com HQ: Baltimore, MD, United StatesReported employees: 1-10 | Baltimore, MD, United States | 1-10 | Exact match | 5 contacts → |
“American Blackbird is a group of highly experienced senior electronic security professionals.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Saberin Securitysaberinsecurity.com HQ: Baltimore, MD, United StatesReported employees: 1-10 | Baltimore, MD, United States | 1-10 | Exact match | 5 contacts → |
“Mix and match devices from four categories: alarm sensors, security cameras, door/elevator/gate access, and visitor entry.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | On Site Policeonsitepolice.com HQ: Baltimore, MD, United StatesReported employees: 51-200 | Baltimore, MD, United States | 51-200 | Exact match | 3 contacts → |
“On Site Police dba On Site Protection is full service security staffing company based out of Baltimore, Maryland since its founding in 2019.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Alpha Cameras And Securityalphasecuritycameras.com HQ: Baltimore, MD, United StatesReported employees: 1-10 | Baltimore, MD, United States | 1-10 | Exact match | 1 contacts → |
“Headquartered in Baltimore, Maryland and servicing the DC, Northern Virginia and Maryland areas, Alpha Cameras and Security is an independently owned and operated security system…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 13 of 42 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Security companies: dataset insights
October 1, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
42 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole United States list rather than for Baltimore, so it is reported there. Company counts and contact totals on this page are exact for Baltimore, over 42 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 1, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Security companies by metro in the United States
- Security companies in New York233
- Security companies in Los Angeles187
- Security companies in Houston184
- Security companies in Miami153
- Security companies in Atlanta103
- Security companies in Chicago102
- Security companies in Dallas100
- Security companies in Phoenix85
- Security companies in Austin83
- Security companies in Las Vegas67
- Security companies in Orlando65
- Security companies in San Antonio60
- Security companies in Tampa59
- Security companies in Charlotte58
- Security companies in Denver58
- Security companies in San Diego55
- Security companies in Indianapolis46
- Security companies in Sacramento46
- Security companies in San Francisco45
- Security companies in San Jose45
- Security companies in Jacksonville44
- Security companies in Seattle43
- Security companies in Nashville37
- Security companies in Fort Lauderdale36
- Security companies in Memphis34
- Security companies in Portland34
- Security companies in Washington34
- Security companies in Columbus33
- Security companies in Philadelphia32
- Security companies in Raleigh32
- Security companies in Columbia31
- Security companies in Fort Worth31
- Security companies in Cincinnati30
- Security companies in Brooklyn29
- Security companies in Louisville28
- Security companies in St. Louis28
- Security companies in Albuquerque26
- Security companies in Richmond26
- Security companies in Springfield26
- Security companies in Boca Raton25
- Security companies in Boston25
- Security companies in Irvine25
- Security companies in Minneapolis25
Questions about this company list
What does Exact match mean for security companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many security companies did RevenueBase find based in Baltimore, United States?
The saved snapshot records 42 matching company records, 650 tracked contacts and 79 verified emails. The public preview displays 13 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 1, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Security companies by geography
- Security companies based in the United States
- Security companies based in the United Kingdom
- Security companies based in Brazil
- Security companies based in France
- Security companies based in Canada
- Security companies based in Germany
- Security companies based in Italy
- Security companies based in Australia
- Security companies based in the Netherlands
- Security companies based in Mexico
- Security companies based in South Africa
- Security companies based in Spain
Cite this list
RevenueBase Data Team. Top 13 security companies based in Baltimore, United States. Snapshot: October 1, 2026. https://revenuebase.ai/companies/security-companies/united-states/baltimore.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗