STT Security

What STT Security does

STT Security Services is a privately held, employee-centered security services company founded in 1973 by David Rusch and headquartered in Mt. Pleasant, Michigan. The company provides unarmed security guard services, investigative services, security consulting, and business loss prevention across 11 industry verticals — Healthcare, Data Center, Industrial Plant, Warehouse/Logistics, Construction/Solar/Wind, College/University/School, Business/Commercial, Food Production, Security Screening, Executive Protection, and Employee Discharge — for enterprise and mid-market clients. STT holds state licensing in Michigan, Illinois, New Mexico, and Texas, claims nationwide service delivery, and employs over 400 staff members across its operations. Leadership includes second-generation family ownership (CEO David Rusch, Partner Calvin Rusch), VP of HR and Finance Denise Robertson (20-year tenure), Director of Investigative Services Jim Dominowski (30+ years, classified as an Expert Witness by the Michigan Court System), and other long-tenured directors and regional managers.

The core offering is contract-based, customized unarmed security guard services delivered through a sales-led model with quote-based pricing, free consultations, and multi-year contract structures. Distribution is direct: toll-free phone (800-860-1788), website quote forms (sttsecurity.com/get-quote), and consultation-based field sales targeting enterprise and mid-market buyers. STT operates proprietary technology as its differentiator at the operating layer — electronic tour verification systems for patrol accountability, electronic officer monitoring, and proprietary reporting software for daily activity, incident reports, statistics, and timekeeping delivered to clients electronically. The Investigative Services division operates as a parallel professional-services stream providing background checks, surveillance, process serving, fraud investigation, and witness location services.

Revenue mechanics are split between managed services (unarmed guards via multi-year contracts with on-site assignment of officers matched to skill and industry) and professional services (investigations on a project basis). The company markets itself on its employee-centered culture, length of tenure, training rigor (de-escalation, conflict resolution, situational awareness, active assailant), and 30+ year affiliation with ASIS International (with CEO Rusch chairing the Saginaw Valley Chapter). Ownership remains family-controlled with no external institutional investors, no funding rounds, no disclosed M&A, and explicit intent to remain independent — positioning STT as a stable, organically-grown regional-to-national security firm rather than a venture-backed or roll-up platform.

Name

STT Security

Legal name

STT Security Services

Website

https://sttsecurity.com

Company type

Private

Founded year

1973

Operating status

Operating

Headcount range

101–250 employees

Short description

STT Security Services is a privately held security guard and investigations firm providing unarmed contract security, private investigation, consulting, and training across 11 industry verticals to enterprise and mid-market clients in the United States.

Ownership category

akta.pro rank

Product category

Contract Security Services

NAICS

Investigation, Guard, and Armored Car Services (56161), Security Guards and Patrol Services (561612), Investigation and Personal Background Check Services (561611), Investigation and Security Services (5616)

SIC

Services-Detective, Guard & Armored Car Services (7381)

akta.pro primary industry

Manned Guarding & Patrol Services (IMAIAEAA)

Keywords

• Security guard services
• Private investigations
• Executive protection
• Security consulting
• Loss prevention

Headquarters

HQ city

Mount Pleasant

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Security Guard Services: Contract-based unarmed security guard services providing customer service, enforcement of policy, monitoring of cameras, controlling access, foot and vehicular patrols, threat assessment, reporting and de-escalation. Services are customized for each client assignment with both short-term event and long-term contract options.
2. Investigative Services: Private investigation services including background checks, surveillance, process serving, general surveillance, and discreet protective services. Offered through their Investigations division.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels7 records

Core offering

STT Security Services delivers unarmed uniformed security guard services, private investigative services, executive protection, employee termination security, and security consulting across 11+ industry verticals in the United States. Founded in 1973 and headquartered in Mt. Pleasant, Michigan, the firm deploys 400+ trained security professionals to healthcare, education, industrial, data center, warehouse, construction, food production, and commercial clients, supported by proprietary officer monitoring, electronic tour verification, and reporting technology.

Product overview

STT Security is an employee-centered security services company operating as a single unified offering portfolio rather than a platform-plus-modules architecture. The core product is unarmed Security Guard Services, which is customized across 11 specialized industry verticals including Healthcare, Data Center, Industrial Plant, Warehouse/Logistics, Construction/Solar/Wind, College/University/School, Business/Commercial, Food Production, Security Screening, Executive Protection, and Employee Termination. Supporting services include Investigative Services (private investigations, background checks, surveillance), Security Consulting, and Business Loss Prevention Services. The company also deploys proprietary technology platforms including an Electronic Reporting Software system for incident reporting, statistical analysis, and timekeeping, plus an Electronic Tour Verification System for patrol monitoring.

Differentiator

Problem solved

Functional benefit

Products and services

• Security Guard Services Core uniformed unarmed security guard services deployed to client sites across multiple industries in the United States, supported by proprietary officer monitoring and reporting technology.
• Healthcare Security Guard Services Specialized unarmed guard services for healthcare facilities such as hospitals, clinics, and medical campuses, including de-escalation-trained officers for patient and staff safety.
• Data Center Guard Services Security guard services tailored for data center and high-security technology infrastructure environments, often paired with screening services to control access.
• Security Screening Guard Services Visitor and contractor screening guard services for high-security sites such as data centers and other controlled-access facilities.
• Industrial Plant Security Guard Services Guard services for industrial plant and manufacturing environments, including perimeter, access, and asset protection under shift-based coverage.
• Warehouse and Logistic Security Guard Services Guard services for warehouses, distribution centers, and logistics operations, including dock and yard security and inventory loss prevention.
• Construction, Solar, and Wind Project Security Guards Site security services for active construction, solar, and wind energy projects, including equipment and material theft deterrence at remote or variable outdoor sites.
• College, University, and School Security Guards Guard services for K-12 schools, colleges, and universities, including student safety, access control, event coverage, and after-hours facility protection.
• Business and Commercial Security Guard Services Guard services for commercial businesses and corporate offices, including lobby, access control, and premises protection.
• Food Production & Processing Security Guard Services Guard services for food production and processing facilities, with officers trained in food-safety protocols and controlled access in sensitive production areas.
• Employee Termination Security Guard Services Security guard services deployed to support workplace involuntary terminations, including on-site presence to deter escalation and protect personnel.
• Executive Protection Services Personal protective services for executives, public figures, and high-net-worth individuals, providing close protection and secure travel support.
• Investigative Services Private investigation services for corporate, legal, and individual clients, covering confidential inquiries, evidence gathering, and case management.
• Security Consulting Services Advisory and security consulting engagements for organizations needing risk assessments, program design, and security strategy input.
• Business Loss Prevention Services Loss-prevention-focused security services for retail and other commercial clients, addressing shrinkage and inventory protection.

Quantifiable outcome

• Areas with uniformed security reported a 16% decrease in crime and 49% increase in police-generated detections (Cambridge University study referenced)

Named customers5 records

Segments11 records

Ideal customer profiles9 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Four partnerships are on record, tiered core and minor.

• ASIS InternationalcoreStrategic or Co-development PartnerSTT Security has been affiliated with ASIS International for over 30 years. CEO David Rusch serves as Chairman of the Saginaw Valley Chapter of ASIS. STT participates in career awareness programs exposing students to security industry careers and promotes excellence in security management profession.
• Protective Technologies International (PTI)minorStrategic or Co-development PartnerSTT partners with PTI for comprehensive multilevel security programs combining PTI's sensitive metal detectors with STT's trained security personnel. PTI manufactures high-quality walk-through metal detectors trusted in precious metals, mining, and refinery industries. Combined expertise provides comprehensive security solutions.
• Saginaw Valley ASIS ChaptercoreStrategic or Co-development PartnerLocal Saginaw Valley Chapter of ASIS where STT CEO David Rusch serves as Chairman. Chapter brings together security professionals from companies including Dow Corning, Hemlock Semiconductor, Dow Chemical, and ETEC to provide networking and career opportunities for students.
• Delta CollegeminorStrategic or Co-development PartnerEducational partner where STT Security and Saginaw Valley ASIS Chapter hosted Security Career Awareness Program exposing over 150 students from Delta College and Saginaw Valley State University to security industry careers.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• American Guard Services: Multi-state contract security provider offering uniformed guarding, event security, and executive protection — direct small/mid-cap comparable.
• APSI Security & Protection: Niche US security provider focused on healthcare, government, and educational facility guarding — overlapping vertical specialization with STT.
• Bryant Security: Regionally focused contract security guard provider with overlapping service portfolio including executive protection and investigative services.
• National Security Systems Inc. Mid-sized US uniformed security provider serving commercial, industrial, and institutional clients — comparable scale and service model to STT.
• Walden Security: Privately held US contract security services provider with similar geographic spread and vertical diversification across healthcare, education, and government.
• U.S. Security Associates: Mid-scale US contract guarding firm serving commercial, industrial, healthcare, and educational facilities — comparable size and vertical mix to STT.

Broad incumbents

• GardaWorld Security Services: Large North American security guarding and cash services provider competing across industrial, commercial, and specialized verticals — directly comparable business model and customer mix.
• Securitas AB: Global contract security guarding leader with extensive US operations across healthcare, data centers, education, and industrial verticals — the closest multinational parallel to STT's vertical-by-vertical go-to-market.
• G4S (now part of Allied Universal): Historically one of the largest manned security providers globally, with US guarding operations serving many of the same facility-type end markets as STT.
• Allied Universal: The largest contract security services provider in North America, offering manned guarding across commercial, industrial, and government segments — directly comparable end-market overlap to STT but at vastly greater scale.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks4 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/SttInc
• LinkedInlinkedin.com/company/stt-inc

Revenue estimate

Valuation estimate

Number of profiles

Profiles11 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about STT Security