Independent
Engineering
Excellence
Professional technical consulting in industrial automation, control systems integration, and process instrumentation — customer-focused, built on 30 years of hands-on engineering excellence across diverse industrial sectors.
Houston, Texas — Est. 2025 Precision Engineering. Seamless Integration. Proven Results.
Built on Three Decades
of Field-Proven Expertise
Quantaris Integrated Services LLC is a Houston-based independent engineering consultancy serving a broad range of process and industrial sectors — from chemical manufacturing and petrochemical plants to water treatment, pulp & paper, and green energy facilities. Founded by a control systems engineer with over 30 years of hands-on project delivery across diverse industrial environments.
We exist to give plant operators, facility owners, and EPC firms access to senior-level technical judgment without the overhead of a large firm. Every engagement is led by a principal engineer, not delegated to juniors. Every recommendation is vendor-neutral and grounded in real-world operating experience.
"The right answer isn't the most sophisticated one — it's the one that works reliably at 3 a.m. in a remote facility."
Project Experience
Industrial automation projects across chemical plants, petrochemical facilities, water treatment plants, power generation, manufacturing, and process industries worldwide.
Recognized Expertise
Deep domain knowledge in DCS, SCADA, PLC, SIS, industrial networks, field instrumentation, hazardous area classification, and intrinsically safe system design.
Standards & Compliance
Hands-on experience with IEC 61511, IEC 61508, ISA 84, NEC/NFPA 70, ISA/IEC 60079 (Ex standards), API/ISO standards, and corporate automation design guidelines.
Platform Proficiency
Configuration and design across Yokogawa CENTUM/ProSafe, Honeywell Experion, ABB 800xA, Rockwell/Allen-Bradley, Siemens, Ignition SCADA, and cloud-based IIOT platforms.
Eight Practice Areas.
Every engagement is led directly by a senior level engineer with 30+ years of field experience — not delegated, not subcontracted.
Control System Integration
End-to-end DCS, PLC, and SCADA system integration from architecture design through commissioning. System specification, I/O philosophy, hardware selection, software configuration, HMI design, and loop testing for continuous and batch process facilities.
Remote Monitoring & Telemetry
Design and deployment of remote monitoring solutions for distributed assets. RTU/PLC-based telemetry, cellular and satellite communication architectures, alarm management, and centralized operations center integration for unmanned or remote facilities.
Industrial Networks — Wired & Wireless
Design, installation, and commissioning of industrial Ethernet, fiber optic, fieldbus (Foundation Fieldbus, PROFIBUS, Modbus), and wireless networks (WirelessHART, ISA100.11a, Wi-Fi). Network segmentation, redundancy, and cybersecurity hardening for OT environments.
Field Instrumentation — Hazardous Area & Intrinsic Safety
Specification, selection, and installation design of process instrumentation for classified (hazardous) area applications. Intrinsically safe (IS) circuit design, Ex-rated equipment selection, area classification per NEC/IEC 60079, and compliance documentation.
Control Panel - HW, SW, HMI Design, Testing and Commissioning
Complete control panel engineering including layout design, hardware specification, wiring schematics, component sourcing, fabrication oversight, and panel software configuration. FAT witness and site acceptance testing for custom-built control and relay panels.
OT/IT Integration
Bridging operational technology and information technology domains. OPC UA/DA architecture, data historian deployment, MES connectivity, DMZ design, and cybersecurity assessment per IEC 62443 for converged plant-to-enterprise networks.
Cloud Services & Industrial IoT
Cloud-based monitoring, analytics, and data management for industrial operations. Edge computing strategy, MQTT/Sparkplug B architecture, cloud platform advisory (AWS IoT, Azure IoT), dashboard development, and predictive maintenance enablement.
Owner's Engineer & Technical Advisory
Independent technical representation for plant owners during FEED, detailed design, and execution phases. Vendor-neutral design reviews, technical bid evaluation, engineering assurance, FAT/SIT representation, and project quality management.
Practice Area Details
Explore each of our eight practice areas in detail — from scope and methodology to system architecture.
Control System Integration
Quantaris delivers end-to-end control system integration for DCS, PLC, and SCADA platforms. From initial architecture design and I/O philosophy development through hardware specification, software configuration, and HMI graphics design — every phase is executed by experienced engineers who understand plant operations.
We work across all major platforms including Yokogawa CENTUM, Honeywell Experion, ABB 800xA, Rockwell ControlLogix, Siemens PCS 7, and Ignition SCADA. Our vendor-neutral approach ensures the right solution for each application.
- System architecture & network design
- I/O assignment & marshalling design
- Controller programming & configuration
- HMI/SCADA graphics development
- Database & historian configuration
Remote Monitoring & Telemetry
Design and deployment of remote monitoring solutions for distributed and unmanned assets. We architect RTU/PLC-based telemetry systems with cellular, satellite, and radio communication links, providing centralized visibility into operations across geographically dispersed facilities.
Our solutions include alarm management, trend analysis, automated reporting, and integration with central operations centers. We design for reliability in harsh environments with low-bandwidth constraints.
- RTU selection & programming
- Cellular / satellite / radio SCADA communications
- Centralized operations center design
- Alarm rationalization & management
- Data aggregation & reporting dashboards
Industrial Networks — Wired & Wireless
We design, install, and commission robust industrial communication networks that form the backbone of modern automation systems. Our expertise spans industrial Ethernet, fiber optic backbone infrastructure, fieldbus protocols, and wireless technologies.
Network security is integrated from the design phase — including segmentation, firewall zoning, VLAN design, and compliance with IEC 62443 cybersecurity standards for operational technology environments.
- Industrial Ethernet & fiber optic design
- Foundation Fieldbus, PROFIBUS, Modbus
- WirelessHART & ISA100.11a deployment
- Network segmentation & redundancy
- OT cybersecurity hardening (IEC 62443)
Field Instrumentation — Hazardous Area & Intrinsic Safety
Quantaris specializes in the specification, selection, and installation design of process instrumentation for classified hazardous area applications. We ensure full compliance with area classification standards, intrinsically safe circuit design, and proper Ex-rated equipment selection.
Our engineers understand the critical relationship between area classification, protection concepts (Ex ia, Ex d, Ex e, Ex n), and cable/barrier design required for safe and reliable operation in explosive atmospheres.
- Hazardous area classification (NEC/IEC 60079)
- Intrinsically safe (IS) circuit design
- Safety barrier & isolator specification
- Ex-rated instrument selection
- Installation detail drawings & compliance docs
Control Panel - HW, SW, HMI Design, Testing and Commissioning
Complete control panel engineering from concept through fabrication oversight and testing. We handle layout design, hardware specification, wiring schematics, component sourcing, and panel software configuration for custom-built control, relay, and instrument panels.
All panels are designed to UL 508A and applicable NEMA/IEC enclosure standards with full documentation packages for owner records.
- Panel general arrangement & layout design
- Wiring schematics & terminal diagrams
- Bill of materials & component sourcing
- UL 508A compliance & labeling
- FAT witness & site acceptance testing
OT/IT Integration
Bridging operational technology and information technology is critical for modern plant operations. Quantaris designs secure, high-performance OT/IT integration architectures that connect plant floor data to enterprise systems without compromising operational security.
We implement OPC UA/DA gateways, historian systems, MES connectivity layers, and DMZ architectures — all designed with cybersecurity as a foundational requirement per IEC 62443.
- OPC UA/DA gateway design & configuration
- Data historian deployment (OSIsoft PI, Wonderware)
- MES & ERP connectivity
- DMZ architecture & firewall zoning
- IEC 62443 cybersecurity assessment
Cloud Services & Industrial IoT
Quantaris helps industrial clients harness cloud computing and IIoT to unlock data-driven insights from their operations. We design edge-to-cloud architectures using MQTT/Sparkplug B messaging, edge gateways, and leading cloud platforms.
Our solutions enable remote asset monitoring, predictive maintenance analytics, performance dashboards, and digital twin implementations — all while maintaining the security and reliability industrial operations demand.
- Edge computing gateway design
- MQTT / Sparkplug B broker architecture
- AWS IoT, Azure IoT Hub integration
- Cloud dashboard & analytics development
- Predictive maintenance enablement
Owner's Engineer & Technical Advisory
Quantaris acts as the plant owner's independent technical representative, providing unbiased oversight and engineering assurance throughout all project phases. We protect the owner's interests during FEED, detailed design, procurement, construction, and commissioning — ensuring quality, compliance, and technical integrity.
Our vendor-neutral position means recommendations are driven purely by technical merit and the client's best interests, not commercial relationships with equipment suppliers or contractors.
- FEED review & design assurance
- Technical bid evaluation & vendor selection
- FAT/SIT witness & inspection
- Commissioning support & oversight
- Project quality audits & document review
- Procurement technical support
Why Clients
Choose Quantaris
Five principles that define every engagement.
Senior Engineer, Every Engagement
Your project is led by a principal engineer with 30+ years of direct experience — not passed to a junior team. You get the person whose name is on the proposal, from kickoff through close-out.
Vendor-Neutral Independence
Quantaris holds no vendor partnerships, reseller agreements, or licensing affiliations. Every recommendation is based purely on technical merit and the client's operational requirements — not on commercial relationships.
Operator-Side Perspective
Having worked on both the contractor and plant-owner side of major industrial projects, Quantaris understands how to protect the owner's interests while maintaining productive relationships with EPC teams and vendors.
Integrity & Conflict-Free Practice
The firm maintains a written conflict-of-interest policy and declines any engagement that cannot be undertaken with complete professional independence.
Breadth Across the Technical Lifecycle
From concept study and FEED through detailed design, factory testing, site commissioning, and operational support — Quantaris covers the full technical lifecycle. Clients benefit from a single, experienced point of contact who understands how decisions made at FEED impact commissioning outcomes two years later.
Industry Sectors
Quantaris serves clients across a wide spectrum of industrial and process sectors, with deep technical fluency in the unique automation requirements of each environment.
Oil & Gas
Chemical
Manufacturing
Petrochemical
Plants
Industrial
Plants
Water Treatment
& Distribution
Wastewater
Facilities
Cooling Tower
Systems
Boiler & Steam
Generation
Pulp & Paper
Industry
Power
Generation
Green Energy
Facilities
Let's Talk About Your Project.
Whether you are evaluating a control system upgrade, planning a new automation scope, designing an industrial network, or looking for senior technical representation on an active project — Quantaris is ready to engage. We respond to all inquiries within one business day.
Monthly Retainer
Preferred for ongoing Owner's Engineer, technical authority, and embedded advisory roles. Provides predictable access to senior expertise across project phases, with an agreed monthly fee plus hourly overage for additional scope.
Project-Based & T&M
Available for defined-scope assignments including HAZOP facilitation, technical reviews, documentation packages, training workshops, and FAT/SIT representation. Structured by deliverable milestone or time-and-materials rate.
(remote & site mobilization)