Exele Information Systems vs Gaines Williams and Associates: A Deep Dive into Their SCADA Solutions
When it comes to Supervisory Control and Data Acquisition (SCADA) systems, choosing the right partner can make or break operational efficiency. Among the many providers in the market, Exele Information Systems and Gaines Williams and Associates have carved out important niches. Each offers unique customization, integration capabilities, and data solutions targeted at industries like energy, water treatment, oil & gas, and manufacturing.
Although both companies serve SCADA-related environments, their approach, technology, support, and industry focus make them quite different. Let’s break down and compare these two companies to help you determine which might be the better fit for your operation.
Who Are These Companies?
Exele Information Systems is a software development and consulting firm headquartered in the United States. Founded in the mid-1980s, it has focused mainly on industrial automation, plant operations, and process optimization. The company is widely known for its flagship product, TOP Server, and other tools that deeply integrate with systems like OSIsoft PI—a leading data infrastructure widely used in various industries. Exele prides itself on its OPC connectivity solutions, alarm management, data historian integration, and plant data analytics.
Gaines Williams and Associates (often referred to as GWA), on the other hand, is a smaller, US-based engineering firm that primarily offers SCADA integrations, consulting, and IT services for utilities, local governments, and small industries. Though less known globally, the company offers more personalized services and highly-customized automation systems, often building from scratch and adapting to each client’s infrastructure.
SCADA Focus and Specializations
Exele Information Systems emphasizes industrial-grade, scalable, and interoperable SCADA components compatible with major industry protocols. Their goal isn’t just about installing SCADA, but optimizing it using tools that allow for better data flow, visualization, alerting, and business intelligence.
- Core strength: Extensive OPC solutions and native integration with OSIsoft PI Systems
- Industry focus: Manufacturing, energy, pharmaceuticals, oil & gas, and utilities
- Software tools: TopView, OPCcalc, OPCfilter, OPCconvert, and Alarm Notification
- SCADA type: Software-driven with seamless host system communication via protocol connectors
Gaines Williams and Associates tends to focus on bespoke SCADA deployments and works directly with field instruments, RTUs, and PLCs to build complete solutions including custom dashboards. Their strength lies in tailored systems ideal for smaller-scale infrastructure or public sector clients needing additional bootstrapping support.
- Core strength: Engineering-driven customization and local on-site support
- Industry focus: Water & wastewater, municipal utilities, agriculture, and local governments
- Software tools: Integration of commonly used platforms like Wonderware, Ignition, and open-source SCADA frameworks
- SCADA type: Turnkey systems with field device integration and custom operator interfaces
Ease of Use and User Interfaces
Users of Exele’s tools often praise their modern dashboards, low-latency data loading, and compatibility with existing SCADA suites. With sessions running through Microsoft environments and custom browsers, platforms like TopView offer enterprise-grade HMI and alarm windows that are easy to use and configure.
By contrast, GWA leans more heavily on engineering craftsmanship. Their HMIs are often custom-nurtured, meaning they may not look as glossy out of the box but can be molded perfectly for the operator’s need. Since GWA does not ship a singular software suite, the UI and usability depend heavily on the platform they’ve integrated (often Ignition or Wonderware Historian).
Integration and Compatibility
This is where Exele clearly shines. By partnering with OSIsoft and supporting all major industrial protocols (OPC UA, OPC DA, Modbus, MQTT), Exele helps clients upgrade and integrate systems without major overhauls. They function more as an IT automation bridge.
In contrast, GWA builds infrastructure-oriented solutions that begin in the field. While this may result in better direct control, it may cause challenges when scaling systems across multi-site or enterprise-wide operations unless specified during initial development.
Let’s summarize integration flexibility in a comparative table for better visualization:
| Feature | Exele Information Systems | Gaines Williams and Associates |
|---|---|---|
| SCADA Protocol Support | OPC UA, OPC DA, MQTT, Modbus, DNP3 | Custom supported via vendor tools (primarily Modbus, DNP3, some MQTT) |
| OS-level Integration | Windows-centric, with enterprise compatibility | Mixed OS support via third-party platforms |
| Historian Integration | Native PI System and SQL Historian integration | Dependent on platform (Wonderware/InTouch/SQL) |
| Cloud Integration | Supports Azure, AWS, and hybrid cloud models | Limited; primarily on-premise unless custom developed |
Customer Support and User Training
Exele maintains an online knowledge base, performs webinars, and offers technical documentation for self-service. Their license model typically includes technical support with varying SLAs.
GWA operates more like a boutique consulting firm, providing hands-on, on-site training. Their smaller team size lets clients deal with real engineers, not call centers, and each SCADA implementation includes custom manuals and training sessions.
Pricing Considerations
Pricing is where these companies diverge significantly. Exele offers modular and subscription-based pricing, often tied with annual site licenses. This fits larger organizations better since they can scale their licenses across plants and systems.
GWA offers quote-based pricing with a focus on one-time build and support. Their solutions can be more cost-effective for smaller facilities but lack the scalability or automation features enterprises require.
Bear in mind, SCADA deployment costs vary widely depending on system scope, number of devices, and required cloud or field integration.
Security and Compliance
In an age where cybersecurity in SCADA is more critical than ever, both companies offer decent coverage—but in different ways.
Exele provides Role-Based Access Control (RBAC), encrypted data exchanges, and compliance with ISO and NERC-CIP standards thanks to their work in regulated industries.
GWA’s security approach depends on the system they’re deploying. While they can build secure, air-gapped networks perfect for water plants or municipalities, their reliance on third-party tools means security depends partly on vendor standards.
Where Exele can offer full system logs, audit trails, and enterprise-level system hardening, GWA will often secure installations through selective firewalling, VPN set-ups, and physical segregation.
Pros & Cons Summary
Exele Information Systems:
- Pros: Exceptional PI System support, versatile OPC tools, enterprise-grade reliability, strong data visualization tools, plug-and-play modules, great for scaling
- Cons: May be overkill for smaller facilities, costs can rise with scale, less tailored to very small or legacy systems
Gaines Williams and Associates:
- Pros: Personalized service, strong in field-level support, better for tightly-scoped or municipal environments, lower initial cost
- Cons: Not as scalable, depends on third-party platforms, limited cloud and API integrations out of the box
Which One is Right for You?
If you are running a multi-location manufacturing operation, have a data science or analytics initiative, or are currently using OSIsoft PI and want deeper insights into your operations, Exele is the clear choice.
If you’re an operations manager at a municipal water plant or a small utility company with specific needs, a leaner infrastructure, and a desire for on-the-ground support throughout the build process, Gaines Williams and Associates might be the better fit.
Some companies even start with GWA for localized projects and then move to Exele for enterprise-wide invocations—especially when integrating with AWS, Azure, or existing ERP systems.
Final Thoughts
While both players bring value to the SCADA landscape, your decision should factor in scalability, support needs, industry type, budget, and future expansion plans. GWA appeals to those wanting a more relational engagement and field-intensive approach. Exele, meanwhile, delivers technical depth and digital readiness with tools crafted to simplify complexity in the industrial internet landscape.
Whether you’re looking to expand your digital twin capabilities, reduce downtime, or integrate plant systems under one umbrella, a well-executed SCADA system is the cornerstone of operational excellence.
If you’re still unsure, we recommend reaching out to both firms for a consultation. Their insights during discovery will tell you a lot not just about their platform—but their people.
For more details on Exele, visit their official site at www.exele.com or check their solution integration with OSIsoft PI at OSIsoft Partner Page.
To get in touch with Gaines Williams and Associates, try searching for local engineering consulting listings or browse industry directories like Manta.com or Thomasnet.
Want to learn more about deploying modern SCADA systems?
Check out these resources:
- ISA – What is SCADA?
- Inductive Automation – What is SCADA?
- SCADA Hacker – SCADA Cybersecurity Info
Stay tuned to our blog for more comparisons and insights into industrial automation, digital transformation, and process control strategy breakthroughs.
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