WEBSTER, N.Y. — March 17, 2026 — OptiCool Technologies, a provider of advanced two-phase rear door heat exchanger (RDHx) cooling solutions for high-density compute environments, today announced a strategic solutions referral partnership with CoreSite, an American Tower company (NYSE: AMT) empowering critical business and AI workloads that impact everyday life through interconnected data center solutions. The partnership is designed to help customers deploying next-generation infrastructure in CoreSite facilities to address rising thermal constraints and power density requirements.
High-density deployments are moving from edge use cases to the new baseline, and cooling is now a deciding factor in what can be deployed, where, and how fast. Through this partnership, OptiCool and CoreSite will partner to streamline introductions and accelerate deployments where advanced cooling solutions are required—particularly for customers evaluating higher-density environments inside CoreSite data centers.
“This partnership is about helping customers move faster when cooling becomes a critical requirement,” said Lawrence “LL” Lee, Chief Channel Officer at OptiCool. “By aligning with CoreSite, we’re creating a clearer path for teams navigating thermal constraints and higher power densities, so they can evaluate options earlier and deploy with greater confidence.”
OptiCool is the leader in two-phase, close-coupled heat extraction systems, delivering high-performance liquid cooling without added complexity. As the leading provider of rear door heat exchangers (RDHx) built on a two-phase liquid refrigerant design, OptiCool helps data centers address rising heat loads and scale dense deployments more efficiently. Through the solutions referral partnership with CoreSite, customers can engage earlier, evaluate cooling strategies faster, and reduce friction as projects move toward deployment.
The announcement follows OptiCool’s recent partnership expansions across the data center and channel ecosystem, reflecting broader demand for two-phase cooling approaches as density requirements rise.
“CoreSite continues to advance its data center solutions, based on customer feedback, to meet increasing high-density computing requirements,” said Alec Gramont, VP of Product Strategy and Edge at CoreSite. “By collaborating with partners like OptiCool, CoreSite’s facilities can meet customers’ current requirements and anticipate future cooling needs.”
Partnership Highlights:
- Solutions Partner alignment to support customers deploying high-density infrastructure in CoreSite facilities
- Streamlined introductions and coordination when advanced cooling is required
- Earlier engagement and faster evaluation for next-generation infrastructure planning
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About OptiCool Technologies:
OptiCool Technologies is the leader in two-phase, close-coupled heat extraction systems, delivering high-performance liquid cooling without the complexity. As the leading provider of rear door heat exchangers using a two-phase liquid refrigerant design, we help data centers eliminate wasted energy, cut cooling costs, and scale dense workloads without compromise.
Built for efficiency and speed, our rear door heat exchangers (RDHx) can upgrade existing spaces or be deployed in new builds. Both approaches reduce, or even eliminate, the need for traditional airflow management systems, slashing energy costs for providers. Headquartered in Western New York, we design, manufacture, and assemble every system in-house, backed by fast lead times and hands-on support from the same engineers who built it. Learn more at opticooltechnologies.com.
About CoreSite:
CoreSite, an American Tower company (NYSE: AMT), is a leading interconnection data center platform that empowers businesses to future-proof their digital transformation initiatives. For more than 20 years, CoreSite’s purpose-built, highly interconnected data center campuses and team of experts have delivered the cloud-enabled, resilient and flexible digital ecosystems required for customers to quickly scale and interoperate their businesses to support the increasing demands of critical workloads, like AI and high-density applications. For more information, visit CoreSite.com and follow CoreSite on our Connect[ED] blog, LinkedIn and YouTube channels.
Forward-Looking Statements:
This press release contains statements about future events and expectations, or “forward-looking statements,” all of which are inherently uncertain. We have based those forward-looking statements on management’s current expectations and assumptions and not on historical facts. These forward-looking statements involve a number of risks and uncertainties. For important factors that may cause actual results to differ materially from those indicated in our forward-looking statements, we refer you to the information set forth under the caption “Risk Factors” in Item 1A of American Tower’s most recent annual report on Form 10-K, and other risks described in documents American Tower subsequently files from time to time with the Securities and Exchange Commission. Neither we nor American Tower undertake any obligation to update the information contained in this press release to reflect subsequently occurring events or circumstances.
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