Submer Group has launched Corenix, a Houston-headquartered modular data center company aiming to make AI infrastructure delivery more predictable.

Announced on September 28, 2026, the venture combines factory-tested systems with a single team overseeing deployment, and says customers will receive a defined go-live date before signing a contract.

Accountability First: The Pitch Behind a New Modular Data Center Venture

Before a single contract is signed, Martin Renkis wants customers to know exactly what they are getting.

The newly appointed chief executive officer of Corenix, a modular data center infrastructure company launched by Submer Group, says his business is built on putting clarity in front of clients from the outset: what needs to be built, how it will be tested, who is accountable, and when the facility will become operational.

"That's the foundation I'm building Corenix on from day one," Renkis said in the company's launch announcement, made from Houston, Texas, on September 28, 2026.

Under his framing, Corenix presents a dated program and a go-live date before commercial terms are agreed, and a single team remains accountable from factory integration and testing through on-site commissioning and operational readiness. That same team offers flexibility to support both current and future generations of accelerated computing systems.

A Third Operating Company Joins the Submer Group Structure

Corenix becomes the third named operating company within Submer Group, the full-stack AI infrastructure company founded in Barcelona in 2015. It sits alongside Rubix Data Centers, which develops and operates AI data center campuses, and Radian Arc, which provides GPU-as-a-Service and AI-as-a-Service.

Where relevant, the capabilities of those sister companies can support a customer's full-stack AI infrastructure deployment requirements.

Submer Group describes its model as bringing together specialist operating companies across the AI infrastructure stack, spanning from land and power to cloud and edge.

The group says it is structured to address what it identifies as the structural constraints of AI infrastructure: power availability, thermal density, deployment speed, and data sovereignty. Its stated aim is closing the gap between AI ambition and AI reality.

The new company is headquartered in Houston and will serve neoclouds, hyperscalers, and AI operators.

The Delivery Model: Factory-Built Modules Arriving Ready to Commission

Corenix's operating method departs from conventional construction sequencing. The company designs, builds, integrates, and factory tests complete functional data center modules at production facilities before shipping them to project locations.

Each module covers IT, power, cooling, and networking as integrated systems rather than as separately delivered trades.

Once on site, the modules are installed, connected to site infrastructure, and put through site acceptance testing, commissioning, and operational readiness.

Corenix manages the agreed project scope across both the factory and field stages, combining engineering, manufacturing, supply chain coordination, and on-site deployment within a single delivery model.

The company positions itself as occupying the deployment layer of AI infrastructure, delivering rack power, cooling, networking, and IT integrated and factory tested as one system.

The stated objective is bringing AI capacity online against a fixed date.

Every Platform Starts From an NVIDIA Reference Design

Each Corenix platform is based on an NVIDIA reference design, industrialized for AI at scale, and custom-engineered to the individual client's requirements.

The company says this gives customers a repeatable path from an approved technical architecture to operational capacity at the required location. According to Submer Group, the reason such an approach is needed lies in the limits of traditional construction.

Conventional data center builds, the company states, cannot keep pace with the power, networking, cooling, and serviceability demands of accelerated computing, nor with the need to support successive generations of high-density compute.

Corenix was created specifically to close that gap. "AI factories are driving unprecedented demand for new data center capacity, and the market needs a faster, more predictable way to build it," said Patrick Smets, CEO of Submer Group.

"Corenix builds on Submer's history in modular data center delivery and the engineering, thermal, and infrastructure expertise we have developed solving high-density compute challenges for years.

We are bringing that experience into a dedicated business built to deliver AI infrastructure at scale."

The Track Record Corenix Inherits

The new company draws on Submer Group's experience in high-density thermal engineering, global infrastructure deployment, and operations. The group points to a project it describes as proof at scale: a campus with hundreds of megawatts of capacity delivered as a fully modular compute buildout in nine months from order to delivery.

That record sits alongside more than a decade of liquid cooling engineering. More broadly, Submer Group says it has deployed 500 MW or more of liquid-cooled infrastructure and holds more than 8 GW of powered land across the Americas, EMEA, and APAC.

The group operates globally, with hubs in Houston and Taipei in addition to its Barcelona origins.

Renkis Brings a Career Spanning Infrastructure and Software

Renkis arrives at Corenix from Johnson Controls, where he served as executive director of Data Center Infrastructure Services. In that role he developed AI infrastructure offerings covering power, cooling, heat recovery, operations, and financing.

His entrepreneurial background includes founding Smartvue, an IoT hardware and software platform company that was acquired by Johnson Controls, and Trainersoft, an enterprise e-learning software company acquired by OutStart, now IBM.

That combination of data center infrastructure experience and company building is what he now brings to a business whose founding premise, in his words, rests on clarity and accountability.

A Launch Timed to the AI Capacity Squeeze

The debut of Corenix arrives amid what Submer Group characterizes as unprecedented demand for new data center capacity, driven by AI factories.

The company is positioning modular, factory-tested delivery as the answer to build timelines that traditional construction methods cannot meet and is targeting customers who need operational capacity delivered on a predictable schedule rather than on the shifting timelines of conventional builds.