More than a year into her stint as CEO of Equinix, Adaire Fox-Martin has optimized her strategy into just ten words.

What the CEO of the world’s largest data center company—with 273 locations in 36 countries—predicts will drive the business forward

More than a year into her stint as CEO of Equinix, Adaire Fox-Martin has optimized her strategy into just ten words.
Courtesy of Equinix.
Diane BradyBy Diane BradyExecutive Editorial Director, Fortune Live Media and author of CEO Daily
Diane BradyExecutive Editorial Director, Fortune Live Media and author of CEO Daily

Diane Brady is an award-winning business journalist and author who has interviewed newsmakers worldwide and often speaks about the global business landscape. As executive editorial director of the Fortune CEO Initiative, she brings together a growing community of global business leaders through conversations, content, and connections. She is also executive editorial director of Fortune Live Media and interviews newsmakers for the magazine and the CEO Daily newsletter.

Sharon GoldmanBy Sharon GoldmanAI Reporter
Sharon GoldmanAI Reporter

Sharon Goldman is an AI reporter at Fortune and co-authors Eye on AI, Fortune’s flagship AI newsletter. She has written about digital and enterprise tech for over a decade.

Adaire Fox-Martin understands the needs of Big Tech. Prior to becoming CEO of Equinix (No. 446 on the Fortune 500) last year, she held senior roles at Google, SAP and Oracle. Now, the Irish-born former teacher is driving the expansion of the world’s largest global data center network, with more than 273 data centers in 36 countries. Fox-Martin recently spoke with Fortune about what she learned in her first year in the job and where she wants to go from here. 

This interview has been edited and condensed for clarity. 

We last met when you were starting out in the role.

It’s been an incredible year of learning and realizing that this job doesn’t come with an instruction manual. You bring the experiences that you’ve had in the past to the decisions that you make for the company for the future. We’ve laid out the strategy and optimized it into 10 simple words. The first of those is “build bolder.” which is how we’re designing and constructing the infrastructure that underpins the digital economy.

The second part of our ten-word strategy is “solve smarter.” This is about how we abstract the complexity of networking and architecture, which is our secret sauce, and render that for our customers, making Equinix the Easy button. The third piece is to “serve better.” Most participants in the data center industry have five or six customers; we have more than 10,000 enterprise customers. So those are the three pillars. 

What are the other four words?

Underpinning that, we have “run simpler,” which sounds easy to say and is very hard to do. You’re taking complexity out of your business, looking at systems and processes. And the last piece is our people piece, which is to “grow together,” growing our business with our customers, linking our employee success to our customer success. 

Is that a big change?

Equinix has been a company in this segment for 27 years, so we’re one of the long-term players in this industry. And in the next five years, we’re planning to bring on as much capacity as we did in the last 27 years. That’s a big capital investment for us. 

Where do you sit in the data-center ecosystem?

I think there’s a general trend to think of data centers as a homogeneous mass of a singular thing. But there are four distinct categories of data centers, and each one has its own nuance and characteristics. We exist in one of those categories. There’s the hyperscale category, the ones built by cloud-service providers, where you see massive investment. The second category is wholesale, where you’re usually building a facility to lease back to one tenant, maybe two, usually supporting (AI) training. The third is enterprise, where big companies like banks want to have their own center structure. And the fourth category is colocation, which is where Equinix sits.

And what are the advantages of that? 

Think of us a little like an airport authority. It manages the runaways and the facilities of the airport and gives you the ability to rent ticketing and other kind of facilities in there. Then it manages the process of passenger engagement, so an airline comes in, like KLM, drops a passenger, and then magic happens in the background to move that passenger and their luggage to United to go on to California. We’re a little bit like the airport authority of the internet: a data package comes into Equinix and then moves on to where its next destination is. The difference between us and an airport authority is that the airport lines will compete whereas a lot of our customers colocate so they can collaborate. 

What do you do in terms of AI workloads? 

We do both training and inference. A pharmaceutical company would do their training privately at Equinix because in the pharma world much of their research and drug discovery processes have to go through private models for regulatory reasons or intellectual property protection. Training is like teaching the model and then inference really putting what the model has learned to work. 

What about the energy needs?

The different types of data centers have different characteristics when it comes to energy, who they’re starving, or how they’re supporting local economies and communities. 

We’re smack bang in the middle of what I would describe as an energy super cycle. Data centers are one component of it, but so is the electrification of everything. You have the speed of an AI meeting the pace of utilities, and it’s a headfirst collision. We don’t think it’s an insurmountable challenge but it’s going to require collaboration, innovation and time. 

How do you seeing it playing out?

Between now and 2028, it’s fair to say there is a power crunch.  Anything that we’re delivering until 2028, we understand where our power will come from. From 2028 to 2032, you’ll see an innovation click into the power landscape, in the form of data centers and data center operators looking at how they can self-generate, how they can generate on site, how they can innovate with the grid, and give power back to the grid, how they can be flexible on and off the grid.  You’ll see different aspects of innovation, including nuclear, looking at small modular reactors and how they can be utilized. 

From 2032 on, the utilities have introduced some changes. In the past, you would go to a utility and say, ‘I want this much here in this time, just-in-time power provision.’ For someone like us, which doesn’t have the same power draw as a hyperscale data center, that was usually good enough. But utilities are looking at their power framework in the form of cluster studies, taking a group of requirements together in a cluster at the same time. You define the load that you’re going to ramp up to and it will likely take the form of take or pay. If you said you’re going to use this much, you will pay for it, whether you use it or not. 

It’s important that large energy users, like data centers, pay a premium for what they’re utilizing so that we don’t impact small ratepayers, small energy users, so there’s a lot happening around collaboration. We’ve got a 27-year history of that kind of collaboration with the utilities and so we’re very involved in a number of those processes. 

Talk about the challenge of building these centers.

One is supply chain, the things that are needed to construct a data center, some of which have been subject to tariffs. In the short term, that’s not an issue but longer term, that may become something that we have to navigate our way through. And then there’s the workforce, the plumbers and mechanical engineers and welders who are maintaining our environments that keep the internet up. A lot of trade skills, construction skills and technical skills are necessary to create the data center. 

Are the centers you’re building for these workloads any larger than the ones that you built in the past? 

We do support our hyperscaler partners with the provision of data centers, through a vehicle called xScale, which is a joint venture. We have partners who fund our joint ventures, so we do participate in what I described as the wholesale economy by building what’s called a build-to-suit data center industry for a hyperscaler. So a Google would come to us and say, ‘do you guys have power and land in location X? And would you build for us?’ So we do that through a joint venture off our balance sheet because the capital-intensive nature of that is high. We own 25% of our America JV and we own 20% of our EMEA and our APAC JV. We have 15 centers that are already operational around the globe.

What do you think is underappreciated about your business model?

I think the connectivity of Equinix is underappreciated. We have 270 data centers around the world, so we’re the world’s largest independent data center operator that’s still a public company. People see the physical manifestations of those centers, but the secret sauce is the connections that sit in every single one of those data centers. They take three forms. First is the ability to interconnect a company to another company. We have the trading hubs: 72% of the world’s trading platforms operate on Equinix. You have a trading hub and all their partners located closely to them that need to be literally connected so there’s no latency between the transactions. We have 492,000 deep interconnections between the companies that operate in our centers, between value chains. 

The second piece of connectivity is to do with the clouds. They are an exceptionally important part of the technology landscape. Many customers store their data in clouds and most customers store their data in more than one cloud. They spread the love. We have a 35% market share in native cloud on ramps from our data centers. So you can pop into the cloud, get your data and bring it back.

And then the third piece is physically where we’re located. We’re not in the middle of the country. We are in cities, where human beings are with their devices. So many people refer to us as the metro edge, the city edge, the edge where people actually are. So we can connect the cloud, via the metro edge where humans are, to the far edge where devices might be utilized. 

Do you think people appreciate the role that data centers play in their lives?

In many countries, we are designated as critical infrastructure, in certain states, too, but not at the federal level. When I think about moving home: water, gas, electricity, internet becomes that fourth utility. And 95% of internet traffic runs through the Equinix environment. If you were on a Zoom call this morning, if you did a stream from any of the major providers, ordered an Uber, purchased a train ticket, you were on a platform accessing Equinix at some point. 

“95% of internet traffic runs through the Equinix environment.”Adaire Fox-Martin, CEO, Equinix

What are you seeing in terms of customer trends? 

Many of our customers are moving from the proof-of-concept phase of AI into the real-world-application phase of AI. There’s a lot to grapple with in that. It isn’t just about taking a business process and putting AI over the top of it. There are a whole series of considerations around governance and the management of data that haven’t really played into the business picture yet that are very real, especially for industries that are highly regulated. 

That’s why some have not even adopted that much AI. 

Right. Even if they are frontrunners, now it’s kind of like coming back and saying, ‘oh, how do we make sure that we’re audible, traceable, accountable, all of the things that are good governance for business. If we’re going to deploy a technology that can automate so many things and take my human out of the loop, how do I report, manage, and maintain the governance framework of those processes in my business?

We’re seeing a lot of pushback in local communities where these mega hyperscale data centers are being built.  How are you staking your claim to say we’re not that, but this is still critical infrastructure we need?

You look at it through the lens of what are the good things that a data center can do for a local community. We engage very strongly with local communities when we are beginning a construction. You do bring jobs to the area, particularly in the construction face, less so when you’re in the operation face because there isn’t a preponderance of humans across a data center.  Second, you’re obviously going to pay tax in that location and that has knock-on benefit. Thirdly, we employ and source locally. I’m very excited about our apprenticeship scheme, where young women and men who maybe didn’t have a formal education path can become data-center technicians or critical facility engineers. And when there’s a build of a data center, there’s often an upgrade of the infrastructure around it, like whether that’s the power capabilities, the roads and so on. 

Are people asking more questions about water, energy? 

For sure. And we recognize that these are extremely important parts of the life system of our planet. We were the first data center operator to begin reporting on our water usage. When you bring in power, you want to maximize the use of that energy in the deployment of workloads for customers and not just empowering the data center itself. We measure our power and how effective we are in using power. The best way to save energy to use less of it. That’s absolutely an industry standard now.

And water?

Water was never at the same level of investigation or scrutiny as power was. Now, there’s a measure of water-usage effectiveness and we were one of the first to report on that. It’s not as standardized as power and so we’re working in the industry to try and standardize that a little bit more. 

In the longer term, data centers will more than likely be cooled by liquid cooling, as opposed to air or evaporative cooling. And liquid cooling, in terms of water use, is a closed-use-loop system. You’re reusing the same water over and over again to cool the chips. The technology itself will become a determinant of sustainability. 


All the big tech companies are working to make these models smaller and more efficient. Eventually, they’re going to want to have many little data centers that are colocated. Do you think you’ll benefit from that? 

We believe the inference target addressable market, combined with the network, is about $250 billion outside of what the clouds are doing. By 2029, the inference opportunity will be twice the size of training. And that’s why we’re setting ourselves up for this opportunity. 

You can think about training as a centralized AI emotion whereas inference is very much a distributed emotion. It will initiate on a device or maybe through voice, or glass, 0r whatever the device is. And it will probably have an agent conduct its orchestra, in terms of instructing other agents to get data from more than one location. That’s why we’ve been very selective about where we built. 

You came to this job from Google almost a year and a half ago. Where are you now versus what you were thinking when you came in? 

I would say on a journey, not at the destination but heading in the right direction. I’m confident that we have such a unique combination of characteristics—the metro locations, the connectivity, the secret sauce—that we’re ready for prime time. I’m working through the dynamics of some of the negative feelings around data centers. The challenge around energy has been very real in Europe, in particular. There are countries that have just issued a moratorium on data-center builds, like Ireland, my home country, until they can kind of take a breath and understand whether they can do. These problems are absolutely addressable. They’re absolutely surmountable. It’s a time-based issue that’s going to require collaboration and innovation to solve. 

What about the regulatory environment? That’s been in flux.

There is a lot of noise on a variety of topics. I’m just working to control the controllable, and carry on the path that we believe for us is the right path. For example, Equinix has some goals around our sustainability narrative. By 2030, we set a goal for ourselves that we would be neutral as it relates to the use of carbon. We’re still on that track. And we’ve set a science-based goal for 2040 to be net zero and we will continue to innovate and work to do that. 

It’s not just that we believe there is an opportunity for technology and innovation to exist with good environmental stewardship. Our customers are continuing to ask us for reports on how their usage at Equinix is impacting things that we may be measure.

There’s a lot of what about AI. What will it do? But there’s a where about AI. And we’re like the where of AI. There are physical cables, even under the ocean, and cable trays and billions of wires. If you’re in California, you get to see the history of data centers. The internet will literally be above your head. We have three decades of data center history, from our very first one to our latest one. I never thought I would come into a company where we have 56 active construction projects all around the world.