Client Testimonials

The Faster Path to Decarbonization

Savanna, a series of real estate investment funds with millions of square feet throughout New York City, turned to Cortex with the goal of quickly decarbonizing their portfolio to improve GRESB scores, meet investor expectations, increase asset value, and meet Local Law 97 deadlines.

Achieving 100% payback in just three months, Managing Partner Nick Bienstock reported that Savanna increased the asset value of a single building by $5M.

Savanna has since rolled Cortex out across their portfolio, resulting in dramatic improvements to their GRESB scores, a 21% in portfolio-wide annualized energy savings, and over $1.4M in lifetime financial savings.

Our Cortex Community

More than 95% of Cortex clients believe in our mission and have successfully made massive strides towards the decarbonization of their portfolios – and they renew their subscription year after year.

The Cortex installation and customer success teams did a flawless job getting the system up and running in one of the most demanding environments in the industry. Early results are both positive and promising.

Paul Rode

Head of US Engineering at Tishman Speyer

Not only have we found Cortex to be extremely cost effective, but its environmental and sustainability benefits are also shockingly large. Having Cortex in place at our properties certainly gives us a valuable jump start as far as the steps we need to take to meet the new emissions requirements in New York.

Nick Bienstock


Cortex is poised to change the game for commercial building operators and the climate industry in general. I could not be more proud or excited to be supporting the Cortex team in that journey.

Dan Malven

4490 Ventures Managing Director

Building Analytics capabilities like Cortex are a powerful complement to broader sustainability strategies. The software provides immediate efficiency gains by helping engineers more precisely manage existing equipment and provides actionable insights that are very easy for building engineers to implement, resulting in measurable savings.

Dana Robins Schneider

a Senior Vice President at Empire State Realty Trust

Empowering Informed Engineers

Highly respected in the engineering community, Chief Engineer of 277 Park Avenue in New York City Eddie Valdez was an early-adopter of Cortex. In close collaboration with Property Manager Paul Green, Valdez and his team deployed Cortex after recognizing the need to improve efficiency and reduce costs of their building’s operations. 

Since deployment, they have realized savings of approximately $700,000 in energy-related costs. Valdez attributes these savings to features in the Cortex app, such as the electric and steam energy consumption charts for electric and steam and real-time operations recommendations.

We’re honored to serve as a dedicated partner to engineers like Eddie as we work together in our shared mission of reducing carbon emissions and increasing tenant comfort.

Trusted By Industry Leaders:

Cushman & Wakefield Logo
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Ready to learn more about Cortex? Let's chat.

From optimizing operations to making better decisions across your portfolio, Cortex helps you take action to achieve your decarbonization goals - today, tomorrow, and in 2030. Set up time with one of our experts to talk.