Security and Investigations Company Search & Contact Data – Page 16

List of Security and Investigations Companies

Selling into Security and Investigations? Here are its companies, biggest first, including All-State Fire and Security, Armortech Security Inc. and Audio Sentry Corporation. Open a company to see its revenue range, headcount, tech stack and the people to contact.

Company NameIndustryLocationFundingRevenueEmployees

All-State Fire and Security

Security and Investigations

United States, Ohio, Columbus

$1M - $10M

Armortech Security Inc.

Security and Investigations

United States, California, la Mesa

$1M - $10M

Audio Sentry Corporation

Security and Investigations

United States, Michigan, Roseville

$1M - $10M

Automated Security

Security and Investigations

United States, Pennsylvania, Goodville

$1M - $10M

CENTRAL ALARM, INC

Security and Investigations

United States, Arizona, Tucson

$1M - $10M

Centurion Protective Services, LLC

Security and Investigations

United States, Florida, Jacksonville

$1M - $10M

ESC Central

Security and Investigations

United States, Alabama, Birmingham

$1M - $10M

Electronic Security Concepts LLC

Security and Investigations

United States, Arizona, Scottsdale

$1M - $10M

FIRST PROTECTION SERVICES, INC.

Security and Investigations

United States, Maine, Scarborough

$1M - $10M

GCI Security, Inc.

Security and Investigations

United States, Missouri, St. Louis

$1M - $10M

GJS (Global Journalist Security)

Security and Investigations

United States, District of Columbia

$1M - $10M

GVI Security Solutions

Security and Investigations

United States, Texas, Carrollton

$1M - $10M

HOFFMAN ELECTRONIC SYSTEMS

Security and Investigations

United States, California, Atwater

$1M - $10M

K17 Security

Security and Investigations

United States, Maryland, Rockville

$1M - $10M

Matrix Network, Inc.

Security and Investigations

United States, Texas, Coppell

$25M - $50M

NANPOR Security Academy & Services

Security and Investigations

United States, California, Oceanside

$1M - $10M

NFC Worldwide Solutions, LLC d/b/a NFC Global

Security and Investigations

United States, Pennsylvania, Horsham

$25M - $50M

North Coast Patrol

Security and Investigations

United States, California, Vista

$1M - $10M

PSS

Security and Investigations

United States, California, San Diego

$1M - $10M

Sandy Springs Locksmith

Security and Investigations

United States, Georgia, Atlanta

$1M - $10M

Security Engineering of Pensacola, Inc.

Security and Investigations

United States, Florida, Pensacola

$1M - $10M

Shred-on-Site Ltd

Security and Investigations

United Kingdom, England, Camberley

<$1M

Tattletale Portable Alarm Systems

Security and Investigations

United States, Ohio, Westerville

$1M - $10M

Weekday Nursery School

Security and Investigations

United States, New York, New Rochelle

$1M - $10M

Westmoreland Protection Agcy

Security and Investigations

United States, Florida, Fort Lauderdale

$1M - $10M

eVerifile

Security and Investigations

United States, Georgia, Smyrna

$1M - $10M

iTech Digital

Security and Investigations

United States, Indiana, Indianapolis

$1M - $10M

APL Access & Security, Inc.

Security and Investigations

United States, Arizona, Gilbert

$1M - $10M

Alarm Relay, Inc

Security and Investigations

United States, California, el Cajon

$1M - $10M

Allstar Alarm LLC

Security and Investigations

United States, Michigan, Whitmore Lake

$1M - $10M

Complete Security Systems, Inc.

Security and Investigations

United States, New Jersey, Marlboro

$1M - $10M

Converus

Security and Investigations

United States, Utah, Lehi

$12M

$1M - $10M

Core Security Solutions

Security and Investigations

United States, California, Oakland

$1M - $10M

Corporate Safe Specialists

Security and Investigations

United States, Illinois, Posen

$1M - $10M

Dowley Security Systems, Inc.

Security and Investigations

United States, Texas, Houston

$26M

$1M - $10M

Global Strategies, Inc.

Security and Investigations

United States, Tennessee, Brentwood

$1M - $10M

Grid Squared Systems

Security and Investigations

United States, New York, Astoria

$1M - $10M

Kwema

Security and Investigations

United States, Arkansas, Bentonville

$1.1M

$1M - $10M

Liberty Security Services

Security and Investigations

United States, New York, Kingston

$1M - $10M

Lloyd Security Inc

Security and Investigations

United States, Minnesota, Minneapolis

$1M - $10M

Lockmasters, Inc.

Security and Investigations

United States, Kentucky, Nicholasville

$1M - $10M

Main Line Protection Services

Security and Investigations

United States, Pennsylvania, Bala Cynwyd

$1M - $10M

MarineGuard Systems Limited

Security and Investigations

United Kingdom, England, Rownhams And Nursling

<$1M

Midstate Security Company

Security and Investigations

United States, Michigan, Wyoming

$1M - $10M

NarrowGate Security Agency

Security and Investigations

United States, New York

$1M - $10M

OnView Integrated Solutions - MBE

Security and Investigations

United States, California, San Jose

$1M - $10M

Quick Response Monitoring

Security and Investigations

United States, Ohio, Cleveland

$1M - $10M

RedWave Technology - A 908 Devices Company

Security and Investigations

United States, Connecticut, Danbury

$1M - $10M

Reed Brothers Security

Security and Investigations

United States, California, San Leandro

$1M - $10M

Rezorce

Security and Investigations

United States, Delaware, Newark

$1M - $10M

Security and Protective Services, LLC

Security and Investigations

United States, Michigan, Ypsilanti

$1M - $10M

Sonitrol Orange County, LLC

Security and Investigations

United States, California, Irvine

$1M - $10M

TEKWave Solutions, LLC

Security and Investigations

United States, Georgia, Alpharetta

$1M - $10M

TSG Security

Security and Investigations

United States, New York, Rochester

$1M - $10M

Tactical Solutions International, Inc.

Security and Investigations

United States, Wyoming, Crowheart

$1M - $10M

Tri State Life Safety & Electric Systems Inc.

Security and Investigations

United States, North Carolina, Murphy

$1M - $10M

Tristate Low Voltage Supply

Security and Investigations

United States, New York, Brooklyn

$1M - $10M

Wellington Security Systems

Security and Investigations

United States, Minnesota, Edina

$1M - $10M

Active Alarm Company

Security and Investigations

United States, Illinois, Lake Zurich

$1M - $10M

Alarm Security Inc

Security and Investigations

United States, Illinois, Des Plaines

$1M - $10M

Alert Protective, Inc

Security and Investigations

United States, Illinois, Chicago

$1M - $10M

App-Techs

Security and Investigations

United States, Pennsylvania, Lancaster

$1M - $10M

Blue Line Security Systems LLC

Security and Investigations

United States, Indiana, Indianapolis

$1M - $10M

Central Monitoring

Security and Investigations

United States, Georgia, Albany

$1M - $10M

Custom Protection Security

Security and Investigations

United States, Florida, Miami

$1M - $10M

Cvb Industrial Contracting

Security and Investigations

United States, Georgia, Sandersville

$1M - $10M

DEPS - Down East Protection Systems

Security and Investigations

United States, North Carolina, Kinston

$1M - $10M

Finley Investigations & Security

Security and Investigations

United States, Texas, Midland

$1M - $10M

Force Security Solutions LLC

Security and Investigations

United States, Virginia, Manassas

$1M - $10M

FraudWatch

Security and Investigations

Australia, Victoria, Box Hill

$1M - $10M

ITW Envopak

Security and Investigations

United Kingdom, England, London

<$1M

Industrial Security Services Corporation

Security and Investigations

United States, Texas, Houston

$1M - $10M

Maksimum Security

Security and Investigations

United States, Oregon, Medford

$1M - $10M

Midwest Protection Services Inc.

Security and Investigations

United States, Wisconsin, Appleton

$1M - $10M

Milwaukee Alarm Company

Security and Investigations

United States, Wisconsin, West Allis

$1M - $10M

North Pacific Security, Inc.

Security and Investigations

United States, Oregon, Bend

$1M - $10M

Octeum

Security and Investigations

United States, New York, Fairport

$1M - $10M

PHENIX Investigations

Security and Investigations

United States, Indiana, Greenwood

$1M - $10M

Park Security Systems

Security and Investigations

United States, Pennsylvania, Altoona

$1M - $10M

QI Security

Security and Investigations

United States

$1M - $10M

Quantum - A Geospace Brand

Security and Investigations

United States, Florida, Cocoa Beach

$6.8M

$1M - $10M

Rapid Security, Inc.

Security and Investigations

United States, New Jersey, Mount Laurel

$1M - $10M

SISCO (Security Identification Systems Corporation)

Security and Investigations

United States, Florida, West Palm Beach

$1M - $10M

Signal of Omaha

Security and Investigations

United States, Nebraska, Omaha

$1M - $10M

South West Private Patrol

Security and Investigations

United States, California, Riverside

$1M - $10M

Spartan Security Consulting, LLC

Security and Investigations

United States, Virginia, Chantilly

<$1M

St Johns Meadows

Security and Investigations

United States, New York, Rochester

$1M - $10M

Stumar Investigations

Security and Investigations

United States, Pennsylvania, Philadelphia

$1M - $10M

Todd Research

Security and Investigations

United Kingdom, England, Bar Hill

<$1M

Virtual Surveillance

Security and Investigations

United States, Texas, Allen

$1M - $10M

Vorp Energy

Security and Investigations

United States, Idaho, Rexburg

$1M - $10M

3rd Eye Surveillance

Security and Investigations

United States, Texas, Richardson

$1M - $10M

Access Systems Integration

Security and Investigations

United States, New Jersey, Eatontown

$1M - $10M

Associated Technical Services, Inc.

Security and Investigations

United States, Wisconsin, Milwaukee

$1M - $10M

Background Information Services, Inc.

Security and Investigations

United States, Colorado, Firestone

$1M - $10M

Butler Security Service

Security and Investigations

United States, Maryland, Halethorpe

$1M - $10M

Cansec Systems

Security and Investigations

Canada, Ontario, Mississauga

$1M - $10M

Carney Security

Security and Investigations

United States, New York, New York

$1M - $10M

Cen-Signal UL Automated Central Station

Security and Investigations

United States, Georgia, Columbus

$1M - $10M

Circle Industries

Security and Investigations

United States, Texas, Corpus Christi

$1M - $10M

About Security and Investigations companies

Which Security and Investigations companies are listed?

Security and Investigations companies of every size, from enterprises to startups, sorted by headcount so the biggest accounts come first. Companies on the list include All-State Fire and Security, Armortech Security Inc. and Audio Sentry Corporation. Every company profile gives you revenue range, headcount, headquarters, tech stack and an employee directory with verified emails and phone numbers.

Where are Security and Investigations companies located?

Security and Investigations companies are most often headquartered in the United States, the United Kingdom, Canada, Australia, the Netherlands and France.

What technologies do Security and Investigations companies use?

The tools most often found in the tech stacks of Security and Investigations companies include WordPress, Microsoft 365, Amazon Web Services, Google Cloud, Shopify and Google Workspace. Useful if you integrate with, complement or compete with one of them.

How do I reach decision makers at Security and Investigations companies?

Open a company to see its employee directory and email format, then use LeadIQ to get verified work emails and phone numbers for the people you want to reach and push them straight to your CRM or sequencer.

Insights based on LeadIQ data refreshed in September 2026.

Top companies by employee count

Security and Investigations Companies

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List of Security and Investigations Companies

About Security and Investigations companies

Which Security and Investigations companies are listed?

Where are Security and Investigations companies located?

What technologies do Security and Investigations companies use?

How do I reach decision makers at Security and Investigations companies?

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Security and Investigations Companies

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List of Security and Investigations Companies

About Security and Investigations companies

Which Security and Investigations companies are listed?

Where are Security and Investigations companies located?

What technologies do Security and Investigations companies use?

How do I reach decision makers at Security and Investigations companies?

Search by Industry

Search by Country

Search by Technology

Top companies by employee count

Ready to create more pipeline?

Find key decision makers, at the right time,
with the right message.