Legionella Control Systems

What Legionella Control Systems does

Legionella Control Systems is an Indianapolis-based engineering company founded in 1932 that specializes in Legionella testing, risk assessment, remediation, and water management programs for industrial, commercial, and healthcare facilities across the United States. The company markets itself as a vendor-independent consultant — not affiliated with any specific product manufacturer — and operates a sales-led, engineering-driven go-to-market with a 24/7 emergency response line (888-416-8626) plus on-site risk assessments. Its service portfolio spans rapid Legionella testing (25-minute turnaround), qPCR testing (24-48 hour turnaround), Legionnaires disease risk assessments, root cause analysis, and a 7-step Water Management Plan aligned with ASHRAE 188 standards.

The company's technology stack is a multi-barrier portfolio that combines chemical and non-chemical disinfection and filtration methods. Chemical offerings include chlorine, chlorine dioxide, monochloramine, on-site generated mixed oxidant solution (MIOX), and advanced oxidation processes (AOP). Physical treatment offerings include UV systems, microfiltration, ultrafiltration, and nanofiltration. Electrochemical offerings include copper-silver ionization (CSI) systems. Point-of-entry and point-of-use filtration — including FDA-cleared 510k filters, sediment filters, and shower filters — round out the equipment line. Healthcare-specific ST108-compliant water purification systems and ST108 testing services address sterile processing water quality. Supporting the commercial motion is a digital ecosystem of interactive calculators (outbreak cost estimation, chlorine demand, water softener sizing), a CDC-aligned risk assessment tool, white papers, case studies, and a regular blog authored by Legionella expert Chris Nancrede.

Revenue is generated through four streams: laboratory testing services (professional services), Legionella control equipment sales (hardware), engineering consulting (professional services), and secondary disinfection managed services. Pricing is quote-based and not publicly disclosed, though the company offers complimentary basic water testing as a freemium acquisition tool, along with build-own-operate, equipment rental, and financing options. Customer segments are vertical-organized across healthcare (hospitals, critical access hospitals, long-term care, surgery centers), industrial and commercial facilities, government and correctional facilities, and hospitality — all driven by regulatory and liability pressure to comply with ASHRAE 188, CDC guidelines, CMS requirements, and AAMI ST108.

Name

Legionella Control Systems

Legal name

Legionella Control Systems, Inc.

Website

https://legionellacontrolsystems.com

Company type

Private

Founded year

1932

Operating status

Operating

Headcount range

1–10 employees

Short description

Legionella Control Systems is an Indianapolis-based engineering company, founded in 1932, providing Legionella testing, water management programs, and multi-barrier disinfection and filtration solutions to industrial, commercial, healthcare, government, and hospitality facilities across the United States.

Ownership category

akta.pro rank

Product category

Industrial Water Treatment Services

NAICS

Water, Sewage and Other Systems (2213)

SIC

Services-Testing Laboratories (8734), Sanitary Services (4950)

akta.pro industry

PRIMARYBPABAAAO

Water, Air Quality & Environmental Hygiene (Legionella/IAQ)

Business & Public Services/Facilities Management & Building Services/Integrated Facilities Management (IFM)

SECONDARYBPABAJAB

Water Sampling, Testing & Laboratory Analysis (Legionella/Microbiology)

Business & Public Services/Facilities Management & Building Services/Water Treatment & Building Water Hygiene (Legionella)

SECONDARYBPABAJAA

Legionella Risk Assessment & Compliance Audits

Business & Public Services/Facilities Management & Building Services/Water Treatment & Building Water Hygiene (Legionella)

SECONDARYBPABAJAL

Water Safety Plans, Training & Documentation (Logbooks, SOPs)

Business & Public Services/Facilities Management & Building Services/Water Treatment & Building Water Hygiene (Legionella)

SECONDARYBPABAJAF

Disinfection & Remedial Works (Chlorination, Thermal, Shock Treatments)

Business & Public Services/Facilities Management & Building Services/Water Treatment & Building Water Hygiene (Legionella)

SECONDARYBPABAJAC

Cooling Tower & Evaporative Condenser Water Treatment

Business & Public Services/Facilities Management & Building Services/Water Treatment & Building Water Hygiene (Legionella)

SECONDARYBPABAJAK

Monitoring & Control (Dosing Systems, Remote Monitoring, Sensors)

Business & Public Services/Facilities Management & Building Services/Water Treatment & Building Water Hygiene (Legionella)

SECONDARYEUAHACAI

Microbiology & Pathogen Monitoring (Legionella, Coliform, HABs)

Energy, Utilities & Environment/Environmental Compliance, Monitoring & Consulting/Environmental Monitoring & Sampling (Air/Water/Soil/Noise)

Keywords

• Legionella testing services
• Water management programs
• Industrial water treatment
• Secondary disinfection systems
• Waterborne pathogen control

Headquarters

HQ city

Indianapolis

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Supply Chain, Technology or R&D

Revenue model

1. Legionella Testing Services: Laboratory testing services for Legionella bacteria including rapid testing (25 minutes), qPCR testing (24-48 hours), water quality monitoring, and pathogen testing panels
2. Legionella Control Equipment Sales: Sale and installation of Legionella control equipment including filtration systems, UV systems, ionization systems, chemical feed systems, and water softeners
3. Engineering Consulting Services: Risk assessments, site visits, water management plan development, remediation planning, and ongoing technical support
4. Secondary Disinfection Services: Implementation and monitoring of secondary disinfection systems using chlorine, monochloramines, chlorine dioxide, mixed oxidants, and other chemical and non-chemical methods

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

Legionella Control Systems is an engineering firm that delivers Legionella testing (rapid 25-minute and qPCR 24-48 hour), Legionnaires risk assessments, root cause analysis, ASHRAE 188-aligned 7-step Water Management Plans, and a full portfolio of secondary disinfection and control equipment (Copper-Silver Ionization, UV, ultrafiltration, nanofiltration, microfiltration, chlorine dioxide, MIOX mixed oxidant, monochloramine, AOP, POE/POU filtration, water softeners, ST108 purification). It serves industrial, commercial, healthcare, government, and hospitality facilities across the United States with 24/7 emergency response.

Product overview

Legionella Control Systems is an engineering company established in 1932 specializing in Legionella testing, remediation, and water management for industrial, commercial, and healthcare facilities. The company offers a comprehensive portfolio of products and services including: laboratory testing services (rapid and qPCR testing), Legionnaires risk assessments and root cause analysis, a 7-step Water Management Plan aligned with ASHRAE 188 standards, and a full range of control equipment including chemical disinfection systems (chlorine, chlorine dioxide, monochloramine, MIOX, AOP), physical treatment systems (UV, ultrafiltration, nanofiltration, microfiltration), ion exchange systems (copper-silver ionization, water softeners), and point of entry/use filtration solutions. ST108-compliant water purification systems are available for healthcare sterile processing applications. The company also provides online calculators for cost estimation, chlorine demand, and risk assessment, along with free basic water testing for qualified customers. Services are available throughout the U.S. with 24/7 emergency response capability.

Differentiator

Problem solved

Functional benefit

Products and services

• Legionella Testing Services Laboratory testing services for detecting Legionella bacteria in water systems, including rapid testing (25 minutes) and qPCR testing (24-48 hours), along with water quality monitoring and GSA federal building testing. Designed for healthcare, industrial, commercial, and government facilities needing compliance and outbreak-prevention data.
• Rapid Legionella Testing Fast-turnaround Legionella bacteria detection providing results in 25 minutes for urgent testing needs.
• qPCR Legionella Testing Quantitative PCR testing for Legionella with results available in 24-48 hours, offering high-precision pathogen detection.
• Legionella Remediation Engineering services for remediating Legionella contamination in water systems, including treatment design and implementation.
• Legionnaires Risk Assessment Site Visit On-site professional assessment evaluating facility water systems for Legionella risk factors and mitigation strategies.
• Legionella Root Cause Analysis Engineering investigation to identify underlying causes of Legionella presence and recurring contamination issues.
• Legionella Water Management Plan Seven-step comprehensive water management program in accordance with ASHRAE 188 standards, covering team establishment, system goals, hazard analysis, risk mitigation, and validation.
• Secondary Disinfection Services Chemical and non-chemical disinfection solutions including chlorine, chlorine dioxide, mixed oxidant solution (MIOX), and monochloramine systems for continuous Legionella control.
• Copper-Silver Ionization (CSI) Systems Electrochemical ionization systems using copper and silver ions to control Legionella and pathogens in water distribution systems.
• UV (Ultra-Violet) System Ultraviolet water disinfection systems for Legionella and waterborne pathogen control using UV light technology.
• Ultrafiltration (UF) Systems Membrane filtration systems removing Legionella and pathogens through ultrafiltration technology at point of entry.
• Nanofiltration Systems High-efficiency nanofiltration systems branded as Legionella Annihilator for removing pathogens and biofilm precursors.
• Microfiltration (MF) Systems Membrane filtration equipment for Legionella and waterborne pathogen control through microfiltration.
• Chlorine Dioxide Systems Chemical disinfection systems using chlorine dioxide for Legionella control and biofilm removal.
• Mixed Oxidant Solution (MIOX) Systems On-site generated mixed oxidant solution combining chlorine, hydrogen peroxide and trace oxidants for biofilm removal and water disinfection, safer and more cost-effective than traditional biocides.
• Monochloramine System Chemical feed systems for monochloramine application in secondary disinfection for long-term Legionella control.
• Advanced Oxidation Process (AOP) Advanced oxidation technology combining oxidants for enhanced Legionella and waterborne pathogen destruction.
• Point of Entry (POE) Filtration Systems Filtration systems installed at water entry points including sediment filters, charged membrane filters, and cartridge housings for whole-facility protection.
• Point of Use (POU) Filters End-point filtration including FDA-cleared 510k filters, inline water filters, and shower filters for targeted Legionella removal at faucets and fixtures.
• Legionella Control Industrial Water Softener Systems Water softening equipment to reduce scale and sediment buildup that promotes biofilm and Legionella growth.
• ST108 Water Purification Systems Water purification systems meeting AAMI ST108 standards for sterile processing critical water in healthcare facilities.
• ST108 Testing Services Laboratory testing services specifically designed to meet ST108 sterile processing water quality standards for healthcare facilities.
• Legionella Training Professional education programs on Legionella control, water management plans, and risk assessment conducted by expert Chris Nancrede.

Quantifiable outcome

• A water management program can reduce legal liability by 90%
• +3 more outcomes

Named customers4 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Scale indicators1 record

Recent moves6 records

Expansion highlights5 records

Others

• Hach Company: Hach supplies water-quality testing instruments, reagents, and online sensors used by facilities and labs for Legionella and water-quality monitoring. It is an enabling vendor rather than a direct competitor, but its sensors and analyzers overlap with LCS's monitoring toolkit.

Broad incumbents

• SUEZ Water Technologies & Solutions: SUEZ provides water treatment chemicals, equipment, and services for industrial and institutional customers, including Legionella control programs. It competes with LCS in industrial and large commercial accounts but as part of a broader water-treatment portfolio.
• Veolia Water Technologies: Veolia operates a global water-treatment business covering municipal, industrial, and healthcare water systems, including Legionella risk management. It competes with LCS at the enterprise and hospital level as an incumbent with much larger scale and geographic reach.
• Ecolab (Water Hygiene & Legionella): Ecolab is a large global water, hygiene, and infection-prevention company with a dedicated Legionella and building-water-safety practice. It competes with LCS in healthcare and industrial accounts but as part of a much broader portfolio across chemicals, equipment, and services.

Direct peers

• Special Pathogens Laboratory: Special Pathogens Laboratory is a Legionella-focused reference lab offering culture, qPCR, and environmental Legionella testing for hospitals and building owners. It overlaps directly with LCS's testing service line and competes for the same healthcare and facilities customers.
• Phigenix: Phigenix provides Legionella and water management programs, validation testing, and consulting for building water systems. It is the closest U.S. direct competitor to LCS, serving healthcare, hospitality, and commercial real estate with a similar risk-assessment and water-safety-plan model.
• Hydromax USA: Hydromax USA delivers utility-locating and water infrastructure services, including asset management and water-system field services. It is a comparable engineering services peer for industrial and municipal water customers, with partial overlap on water-system safety programs.
• LiquiTech: LiquiTech provides copper-silver ionization systems and secondary disinfection services specifically marketed for Legionella control in healthcare facilities. Its product focus (CSI) and healthcare-heavy customer base overlap materially with LCS's CSI and secondary disinfection offerings.

Regional players

• Aqua-Safe Engineering: Aqua-Safe Engineering provides Legionella risk assessments, water management plans, and disinfection services, primarily across the Mid-Atlantic U.S. It is comparable to LCS in service mix but operates in a different regional footprint.

Emerging players

• IDEXX Water: IDEXX Water provides qPCR-based microbial water testing products, including Legionella detection, used by commercial and industrial water operators. It competes in part with LCS's qPCR testing line as a testing-platform provider rather than full-service consultant.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xtwitter.com/NECOlegionella
• Facebookfacebook.com/Legionella-Control-Systems-Services-108140591424104
• LinkedInlinkedin.com/company/legionella-control-systems

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 Legionella Control Systems