STI Cems Services

What STI Cems Services does

STI CEMS Services, LLC is a privately held CEMS (Continuous Emission Monitoring Systems) integration and support provider founded in 2003 by Wade Day and headquartered in Waldron, Arkansas. The company designs, builds, and services turnkey CEMS solutions for industrial facilities subject to USEPA continuous emission monitoring requirements, with a customer base spanning power generation, pulp and paper, waste-to-energy, waste incineration, and petrochemical and refining verticals. Named enterprise customers include International Paper, Smurfit Westrock, Domtar, Roseburg, OG&E, Entergy, LGE, HF Sinclair, and Tyson. The firm operates as a Service-Disabled Veteran Owned Small Business (SDVOSB) with approximately half of its 28 employees being US military veterans, and is 100% owner-run by its founder.

STI's product portfolio spans hardware integration (CEMS racks, fully-loaded equipment shelters manufactured in Arkansas, sample probes, sample chillers, calibration valves), professional services (on-site assessments, installations, retrofits, certifications, and training), and recurring services. Its core software product is PASS (Predictive Analytics Support System), a cloud-based remote monitoring subscription that continuously collects CEMS equipment data and tracks behavioral patterns over time to predict component failures before they occur. SmartAudit is an add-on cylinder gas management service supporting quarterly audit compliance. The company positions PASS as the first and only component-level predictive remote CEMS support system in the industry.

The business model combines one-time hardware and integration revenue (turnkey CEMS sales, equipment shelters, spare parts) with recurring service revenue streams, including 100+ annual onsite maintenance contracts, 25-35 on-demand support contracts, PASS subscriptions, and training add-ons. Go-to-market is direct enterprise field sales with on-site assessments, supported by a nationwide service technician force deployed across the continental US. The company is debt-free, has not raised institutional capital, and distributes exclusively through its own direct sales and service channels rather than resellers.

Name

STI Cems Services

Legal name

STI CEMS SERVICES, LLC

Website

https://sticems.com

Company type

Private

Founded year

2003

Operating status

Operating

Headcount range

11–50 employees

Short description

STI CEMS Services is a privately held, veteran-owned CEMS integration and support provider serving regulated industrial facilities across the continental US, offering turnkey equipment, maintenance contracts, and a proprietary predictive remote monitoring system called PASS.

Ownership category

akta.pro rank

Product category

Industrial Emissions Monitoring Services

NAICS

Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals (334515), Analytical Laboratory Instrument Manufacturing (334516)

SIC

Industrial Instruments For Measurement, Display, And Control (3823), Laboratory Analytical Instruments (3826), Services-Computer Integrated Systems Design (7373)

akta.pro primary industry

Continuous Emissions Monitoring Systems (CEMS) & Stack Testing (EUAHADAA)

akta.pro secondary industry

Emissions Controls & Environmental Retrofit Services (SCR/FGD/ESP, CEMS) (EUAEALAL)

Keywords

• Emission monitoring systems
• CEMS integration services
• Air compliance monitoring
• Predictive emissions analytics
• Industrial emission testing

Headquarters

HQ city

Waldron

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. CEMS Equipment Integration and Sales: STI designs, builds, and supports complete turnkey CEMS solutions including single rack systems to full equipment shelters. They manufacture everything from their shop in Waldron Arkansas.
2. CEMS Maintenance Contracts: Annual service agreements offering ongoing maintenance support including emergency callouts, analyzer troubleshooting, and phone support. They support over 100 annual onsite maintenance contracts with additional 25-35 on-demand support contracts.
3. PASS Remote Monitoring Subscription: Cloud-based remote monitoring subscription service with flexible billing options. Monitors site-specific CEMS equipment 24/7/365 and alerts subscribers before potential problems strike.
4. Spare Parts and Components: Parts inventory for retrofitting obsolete equipment and regular maintenance. They expedite CEMS spare parts coast to coast from their headquarters.
5. Training Services: CEMS training for in-house personnel upon installation and as an add-on to maintenance contracts.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

STI CEMS designs, integrates, and supports Continuous Emission Monitoring Systems (CEMS) for industrial facilities required to comply with USEPA air emissions rules. From its Waldron, Arkansas headquarters, the company manufactures CEMS equipment shelters, integrates best-of-breed analyzer components, and delivers recurring maintenance contracts and spare parts. It also sells a proprietary cloud-based remote monitoring subscription called STI PASS that provides predictive component-level analytics.

Product overview

STI CEMS is a CEMS (Continuous Emission Monitoring Systems) integration and service provider offering a portfolio of hardware products, software solutions, and support services. The core offerings include STI PASS, a cloud-based predictive remote monitoring system; SmartAudit, a cylinder solutions add-on for quarterly audits; and comprehensive CEMS integration services including shelters, installations, maintenance, retrofits, and parts. The company manufactures equipment shelters at its Arkansas facility and provides 24/7/365 support across the continental US.

Differentiator

Problem solved

Functional benefit

Brands

• PASS: Remote Support Service - The first and only remote CEMS support service system in the industry offering TRUE component level, predictive performance of CEMS equipment. A cloud-based system that monitors site-specific CEMS, tracks nuanced behavior of equipment over time, constantly collects and analyzes equipment data, and alerts clients before equipment fails.
• SmartAudit

Products and services

• STI PASS (Remote Support Service) Cloud-based remote monitoring subscription that continuously collects and analyzes site-specific CEMS equipment data 24/7/365, tracking nuanced equipment behavior to predict component failures and alert clients before breakdowns occur.
• SmartAudit Cylinder solutions service that supplies certified gases for quarterly CEMS audits, manages bottle inventory, and tracks expiration dates for maintenance partners.
• CEMS Shelters Fully-loaded, climate-controlled equipment shelters manufactured at STI's shop in Waldron, Arkansas to house CEMS equipment supporting multiple regulated emission sources.
• CEMS Integration Services Turnkey CEMS project delivery including site assessment, installation, upgrades, retrofits, repairs, and certification for analyzers, sample probes, sample chillers, calibration valves, umbilical lines, and weather-tight enclosures.
• CEMS Maintenance Services Ongoing maintenance and field service support delivered by STI technicians on daily, weekly, monthly, or quarterly cadences, covering over 100 annual on-site maintenance contracts plus on-demand support.
• CEMS Training Hands-on training delivered to client personnel upon new CEMS installation and as an add-on to maintenance contracts to help clients maximize equipment use.
• Spare Parts & Retrofit Services Expedited coast-to-coast spare parts supply and retrofitting services to extend the life of obsolete or competitor-installed CEMS equipment, regardless of original vendor.

Quantifiable outcome

• Available 24/7/365 for support with direct employee response

Named customers9 records

Segments5 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability3 records

Feature1 record

Partnerships

Seven partnerships are on record, tiered core and support.

• Thermo ScientificcoreTechnology or IntegrationIntegration partner for CEMS components. STI as an independent integrator hand-picks best solutions in the market based on site-specific needs.
• TeledynecoreTechnology or IntegrationIntegration partner for CEMS components. Listed as one of the favorite integration partners providing analyzers and equipment.
• UniversalcoreTechnology or IntegrationIntegration partner for CEMS components. One of the varied and impressive stack of integration partners.
• VIMcoreTechnology or IntegrationIntegration partner for CEMS components. Part of the ecosystem of suppliers STI works with.
• The CEMS AcademysupportStrategic or Co-development PartnerTraining partner for CEMS education. STI offers training to staff upon installation and as an add-on to maintenance contracts, potentially leveraging CEMS Academy resources.
• M&CsupportTechnology or IntegrationIntegration partner supplying CEMS components such as sample probes and sample chillers.
• CalsupportTechnology or IntegrationIntegration partner supplying CEMS components. Listed among partners providing equipment for CEMS integration.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• CleanAir Engineering: CleanAir Engineering is a US CEMS testing, integration, and emissions monitoring services provider serving power, refining, and industrial clients. It is one of the most direct competitors to STI in turnkey CEMS integration and ongoing source emissions testing services.
• Durag Group: Durag Group is a German-headquartered manufacturer and service provider of CEMS, dust monitors, and combustion analytics with a US presence. It competes with STI on both the supply of CEMS components and on integrated monitoring solutions for industrial stacks.
• Trinity Consultants: Trinity Consultants provides air quality, EHS, and environmental compliance services to industrial and energy clients, including CEMS-related permitting and reporting support. It is comparable to STI in serving compliance-driven industrial customers with technical environmental services.

Broad incumbents

• AMETEK: AMETEK is a large industrial instrument manufacturer whose Process & Analytical Instruments division supplies CEMS analyzers and emissions monitoring equipment. While not a service integrator, it competes with STI's partner OEMs and offers overlapping emissions monitoring capabilities.
• SICK AG: SICK AG is a major global manufacturer of gas analyzers, dust measurement, and emissions monitoring systems used in CEMS applications. It provides equipment that competes with STI's component suppliers and offers integrated emissions monitoring solutions for industrial customers.
• Horiba: Horiba is a Japanese-headquartered manufacturer of CEMS analyzers and stack emissions monitoring instruments with a global installed base. It is a major CEMS equipment brand whose products STI integrates, but also a potential competitor on integrated emissions monitoring offerings.
• Montrose Environmental Group: Montrose Environmental is a US-listed environmental services company providing air quality, emissions testing, and compliance services to industrial clients. It is a larger, broader environmental services competitor to STI in regulated industrial markets.
• Babcock & Wilcox: Babcock & Wilcox is a US-based energy and environmental technology provider serving power and industrial customers with emissions control and monitoring offerings. It overlaps with STI in serving power generation and industrial clients with environmental compliance solutions.
• Endress+Hauser: Endress+Hauser is a global manufacturer of process analytical instruments, including gas analyzers used in CEMS and emissions monitoring applications. It competes with STI's component suppliers and offers integrated measurement solutions for industrial customers.
• ABB: ABB is a large industrial automation and electrification company that supplies continuous emissions monitoring systems and analyzer products to power and process industries. It competes with STI on integrated CEMS offerings, particularly for utility and large industrial customers.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 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 STI Cems Services