Submer Group, the full-stack AI infrastructure company, has announced the launch of Corenix, a modular data center infrastructure company serving neoclouds, hyperscalers, and AI operators. The announcement was made from Houston, Texas, on September 28, 2026, and was accompanied by news that Martin Renkis has been appointed as Corenix's chief executive officer.

Corenix delivers custom-engineered modular data center platforms based on NVIDIA reference designs, industrialized for AI at scale, and delivered from factory build and testing through to on-site commissioning. The company is headquartered in Houston, Texas.

How the Corenix Delivery Model Works

According to the announcement, Corenix designs, builds, integrates, and factory tests complete functional data center modules at production facilities before delivering them to project locations. Those modules cover IT, power, cooling, and networking as integrated systems.

Installation, connection to site infrastructure, site acceptance testing, commissioning, and operational readiness then take place at the client site. Corenix manages the agreed project scope across both stages, bringing engineering, manufacturing, supply chain coordination, and on-site deployment together into one delivery model.

The company describes its focus as the deployment layer of AI infrastructure, delivering rack power, cooling, networking, and IT integrated and factory tested as one system, with the aim of bringing AI capacity online against a fixed date.

Why Corenix Was Created

The launch is framed around a perceived gap in the market. Submer Group states that traditional data center builds cannot keep pace with the power, networking, cooling, and serviceability demands of accelerated computing, or with the need to support successive generations of high-density compute. Corenix was built to close that gap.

The modular approach, according to the company, gives customers a repeatable path from an approved technical architecture to operational capacity at the required location. Each Corenix platform is based on an NVIDIA reference design and custom-engineered to the client's own requirements.

"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."

Accountability and a Fixed Go-Live Date

Renkis emphasized clarity and accountability as the foundation of the new business. "Customers need clarity before they commit: what needs to be built, how it will be tested, who is accountable, and when it will become operational," he said. "That's the foundation I'm building Corenix on from day one."

He noted that Corenix puts a dated program and a go-live date on the table before a contract exists, and that one team stays accountable from factory integration and testing through on-site commissioning and operational readiness, with the same team offering flexibility to support current and future accelerated computing systems.

The New CEO's Background

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

His earlier career 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.

Foundations in Submer Group's Track Record

Corenix draws on Submer Group's experience in high-density thermal engineering, global infrastructure deployment, and operations. That experience is described as proven at scale by a campus with hundreds of megawatts of capacity delivered as a fully modular compute buildout in nine months from order to delivery, 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 was founded in Barcelona in 2015 and operates globally, with hubs in Houston and Taipei.

Position Within Submer Group

Corenix becomes the third named operating company within Submer Group's structure. It works 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, those companies' capabilities support a customer's full-stack AI infrastructure deployment requirements.

Submer Group describes itself as bringing together specialist operating companies across the AI infrastructure stack to close the gap between AI ambition and AI reality. Built on a decade of infrastructure engineering, the group spans from land and power to cloud and edge, and is structured to address what it identifies as the structural constraints of AI infrastructure: power availability, thermal density, deployment speed, and data sovereignty.

Market Context

The launch lands amid what the company characterizes as unprecedented demand for new data center capacity driven by AI factories. With Corenix, Submer Group is positioning a dedicated business unit around modular, factory-tested delivery as the answer to build timelines that traditional construction methods cannot meet, targeting customers who need operational capacity delivered on a predictable schedule.

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