The Ten System Integrators in Connecticut We Recommend

In industrial automation, staying competitive means more than just upgrading technology. It means making those upgrades stick without disrupting your operations. Whether you're launching a new line, upgrading legacy equipment, or integrating modern SCADA and control systems, the people who bring it all together are just as important as the technology itself.

That’s where System Integrators (SIs) come in.

The best integrators install components, yes, but they also help future-proof your operation. They design, program, and deploy solutions that match your production goals, budget, and compliance requirements. And the great ones become long-term partners, helping you scale, pivot, and evolve with confidence.

We’ve put together a refined list of Connecticut-based System Integrators we recommend, based on customer feedback, real-world results, and alignment with Rockwell Automation’s PartnerNetwork. You’ll also notice we’ve included each firm’s Rockwell SI Partner level (if applicable), a key indicator of their technical capability and strategic alignment.

What Makes a System Integrator Worth Partnering With?

A strong integrator doesn’t just know hardware and software; they understand how manufacturing works.

At their core, system integrators are problem solvers. They evaluate your environment, identify performance gaps, and implement control systems that keep your operations reliable, efficient, and safe. The best integrators bring a balance of hands-on technical expertise and process insight, helping you make the right long-term decisions across your facility.

But how do you separate the truly capable partners from the generalists? One way is Rockwell Automation’s System Integrator Partner Program.

What Does Rockwell’s Partner Level Mean?

Rockwell Automation, one of the most trusted names in industrial control and automation, vets and designates SIs based on their technical expertise, training, certifications, and project success.

Each level represents a deeper level of partnership:

• Gold: These firms have advanced technical capabilities, proven project success, and high customer satisfaction ratings. They're the top tier of Rockwell's network.
• Silver: These integrators have demonstrated a strong command of Rockwell technology and consistently deliver successful, compliant projects.
• Bronze: These are up-and-coming partners who meet Rockwell’s rigorous qualification standards and are steadily building their portfolio.

For manufacturers, this designation can be an assurance of consistency, quality, and familiarity with the Rockwell ecosystem.

Our Recommended CT-Based System Integrators

Below is a list of vetted partners who not only meet Rockwell's criteria but have also earned our trust through consistent performance and feedback from our customers.

Aaron Associates of CT (Waterbury, CT) - Rockwell SI Level: Silver

Aaron Associates has been delivering automation and SCADA solutions for over 45 years. Their team has extensive experience in power, water/wastewater, and environmental systems, areas where reliability and regulatory compliance are critical. Their ability to combine hardware integration with custom software development makes them an especially valuable partner for municipalities and utilities.

Applied Controls Engineering (Danbury, CT) - Rockwell SI Level: Gold

Applied Controls Engineering (ACE) has earned a national reputation for delivering custom automation solutions that are both reliable and scalable. Named System Integrator of the Year by Plant Engineering, ACE has deep experience across regulated industries and complex manufacturing environments. With in-house controls engineers and decades of field experience, they’re equipped to handle everything from full-scale integration to specialized upgrades.

Array Systems Inc. (Milford, CT) - Rockwell SI Level: Bronze

Array Systems brings over 30 years of experience in industrial automation. Their strength lies in systems integration for utilities, higher education, and facility-wide HVAC and energy systems. With proven experience across Rockwell, GE Digital, and SCADA platforms, they’re a trusted resource for campuses and industrial facilities looking to modernize infrastructure and reduce energy waste.

D&H Electrical Consultants (Durham, CT)

D&H is a long-time CT-based integrator with a reputation for fast response and long-term reliability. Their team offers custom control system engineering, panel design, and 24/7 service, a valuable asset for facilities that can’t afford prolonged downtime. They also support a wide variety of industrial applications, including municipal and manufacturing environments.

Knapp Engineering (CT-wide) - Rockwell SI Level: Bronze

Knapp Engineering is a smaller firm that punches above its weight. Known for their flexibility and responsiveness, they’re often called in when manufacturers need quick-turn integration support or a reliable partner for phased upgrades.

Mitchell Services (Canterbury, CT) - Rockwell SI Level: Bronze

With over four decades of experience across the U.S. and internationally, Mitchell Services brings global expertise to local applications. Their team handles complex multi-vendor automation systems and offers support for facilities that need robust integration across software, hardware, and industrial networks.

NIC Systems Corporation (Cromwell, CT) - Rockwell SI Level: Silver

NIC Systems is a well-established integrator known for helping manufacturers modernize aging systems without disrupting operations. They focus on the full integration lifecycle: from design and hardware selection to programming, commissioning, and post-installation support. Whether you’re deploying new systems or retrofitting legacy infrastructure, NIC brings strong project management and technical expertise.

Plastimation LLC (Torrington, CT) - Rockwell SI Level: Bronze

Plastimation specializes in factory automation and custom machine building for OEMs and manufacturers. With a background in robotics, machine design, and integration, their team supports a wide range of industries, including plastics, packaging, and general manufacturing. They’re known for their ability to adapt to unique use cases and deliver tailored automation solutions that scale.

RSL Solutions (CT-wide) - Rockwell SI Level: Bronze

RSL focuses heavily on controls and integration within Rockwell environments. Their team blends software and hardware expertise and is well-suited for facilities looking to extend or enhance their Allen-Bradley platforms without overhauling the entire system.

Total Control (Wallingford, CT) - Rockwell SI Level: Bronze

Total Control has a range of services covering AC/DC drives, PLCs, HMIs, and complete system retrofits. They also offer field support, training, and preventative maintenance, making them a strong choice for facilities looking to modernize while keeping continuity of service.

Choosing the Right Partner For You

Finding the right SI is about more than technical specs; it’s also about trust, communication, and alignment. Each of the partners listed above brings something different to the table: from 24-hour service to deep specialization in water, HVAC, SCADA, or complex manufacturing.

The key is to find a partner who understands your challenges, aligns with your timeline, and has a proven track record of delivering results. The Rockwell Partner level gives you a clear, consistent way to measure that readiness, but ultimately the best fit will come from a conversation about your specific goals.

If you're unsure where to begin or want to talk through the pros and cons of different partners, our team at HESCO is here to help. We know these integrators well, we work with them regularly, and we’ll give you an honest opinion on which teams are the best fit for your application, timeline, and budget.