The most expensive and carbon-intensive part of a data center is the power you don't use. Stranded capacity, the gap between what a facility can deliver and what its servers actually draw, is an industry-wide inefficiency measured in megawatts and millions of dollars. Cato Digital, a company that has operated for a decade under the name Virtual Power Systems, is betting that the fastest way to cheaper, greener compute isn't just newer hardware, but software that can finally put that idle power to work.
Founded in 2013 and based in Milpitas, California, Cato provides what it calls "low-cost, low-carbon bare metal" servers paired with a software-defined power control system [Cato Digital, Unknown]. The pitch is straightforward: by dynamically shifting power between workloads and servers, data center operators can increase overall utilization, avoid over-provisioning expensive infrastructure, and sell the reclaimed capacity as sustainable compute. It's a climate tech play that speaks the language of unit economics first, which is the only language that gets a CFO's attention.
The bet on software-defined power
Cato's core technology is a software layer that uses machine learning to predict power demand and adjust delivery across servers and racks in real time [Perplexity Sonar Pro Brief, Unknown]. This lets a data center operator treat power like a fluid resource, not a fixed allocation per rack. If one cluster of GPU servers is idle, its power budget can be shifted to another cluster running a bursty AI training job. The result, according to the company, is that operators can monetize capacity that was previously wasted and avoid building new power and cooling infrastructure.
The hardware side of the equation is bare-metal servers,application, storage, and GPU units,designed for ephemeral, on-demand use, available by the month, week, day, or hour [Cato Digital, Unknown]. Cato sources high-performance servers, including redeployed units from companies like Meta and Nvidia, arguing that reusing hardware offsets the embodied carbon before it's even plugged in [Cato Digital, Unknown] [LetsHosting, 2026]. The combined offer is a resource pool: flexible, carbon-aware compute, powered by software that squeezes more value from every watt.
A founder with hyperscale pedigree
The credibility for this ambitious systems-level bet rests heavily on CEO Dean Nelson. His resume reads like a history of modern data center scale. He led global infrastructure teams at Sun Microsystems, served as Vice President of Global Foundation Services at eBay for six and a half years, and later headed compute infrastructure at Uber [datacenterfrontier.com, 2026] [adapt.com.au, 2026] [youtube.com, 2026]. At Uber, he was responsible for the Metal as a Service (MaaS) platform, giving him direct experience in provisioning physical infrastructure as a flexible commodity [addc.com, 2026]. He is also the founder and chairman of Infrastructure Masons, an industry association, which positions him at the center of conversations about data center efficiency and sustainability [imasons.org, 2026].
This background is critical. Selling a power-management system to a colocation provider or a hyperscaler requires navigating complex, legacy infrastructure and convincing engineers who are skeptical of magic bullets. Nelson has spent his career in their rooms. The senior team also includes Karimulla Shaikh as Chief Technology Officer and Brandon Gillespie as Vice President of Product Engineering, bringing technical depth to the founding vision [Craft.co, 2026].
Traction and the capital behind it
Cato Digital has assembled a substantial war chest to pursue this opportunity, though the precise breakdown of its funding rounds is inconsistent across public databases. The total disclosed funding is approximately $56.9 million over multiple rounds [Tracxn, Unknown]. A seed round of $8.72 million was led by Clear Ventures in 2023 [Tracxn, 2026]. The investor list includes names with deep infrastructure and industrial expertise, such as DCVC, Orbital Infrastructure Group, and Dolby Family Ventures [PitchBook, 2025].
| Round | Amount (USD) | Lead Investor | Year |
|---|---|---|---|
| Seed | $8.72M | Clear Ventures | 2023 |
| Other Rounds | ~$48.2M (total) | Multiple (DCVC, Orbital Infrastructure Group, etc.) | 2013-2023 |
Public traction metrics are less specific. The company claims that customers switching to its bare-metal infrastructure typically save 60-75% compared to major cloud providers, though this is a self-reported figure [Cato Digital, Unknown]. Headcount is estimated between 25 and 100 employees, with revenue in the $5 million to $25 million range [Craft.co, Unknown]. The company is a recognized Open Compute Project (OCP) Solution Provider, which helps with credibility in the open-hardware community [LinkedIn, Unknown].
Where the wheels could come off
The bet is large and the technical integration is deep, which introduces clear execution risks. Cato is not selling a point solution; it's asking customers to rethink how they provision and manage power across their entire data center footprint. This is a high-barrier sale with long cycles.
- Integration complexity. Deploying software-defined power control requires deep hooks into a facility's management systems, electrical infrastructure, and server fleet. This isn't a SaaS app you turn on with a credit card.
- Proving the savings. While the 60-75% cost-saving claim is a powerful hook, enterprise buyers will demand rigorous, site-specific validation before committing. The sales motion depends on proving out those unit economics in pilot deployments.
- Competitive landscape. While direct competitors like Neu.ro are noted, the bigger challenge may be inertia. Major cloud providers are continuously improving their own efficiency, and large operators may choose to build similar capability in-house rather than rely on a vendor.
The company's answer to these risks likely hinges on Nelson's network and the tangible precedent of his work at Uber. The pitch isn't just about software; it's about operational expertise packaged into a product.
The next twelve months
For Cato Digital, the immediate milestone is moving from promising technology and industry relationships to marquee, referenceable deployments. The next year should be about landing and announcing flagship customers,a major colocation provider or a cloud-native company,that can serve as proof points for the model. Given its funding history, another capital raise to scale sales and implementation teams is a plausible near-term move.
The math, in the end, is about power density. If a typical data hall has 10 megawatts of capacity but only uses 7 megawatts on average, that's 3 megawatts of stranded power. At a conservative wholesale power cost of $30 per megawatt-hour, that's about $788,000 in wasted electricity capacity annually, not counting the capital cost of the unused infrastructure. Cato's proposition is to turn that stranded asset into revenue-generating compute. To succeed, it must beat not a flashy startup, but the internal build teams at every major hyperscaler and the entrenched habit of over-provisioning for safety. That's a harder, slower sell, but the payoff,in dollars and carbon,is measured in gigawatts.
Sources
- [Cato Digital, Unknown] Cato Digital - Low-cost, low-carbon bare metal | https://cato.digital/
- [Perplexity Sonar Pro Brief, Unknown] Cato Digital company brief
- [LetsHosting, 2026] Cato Digital service description
- [datacenterfrontier.com, 2026] Dean Nelson profile | https://www.datacenterfrontier.com/es/profile/dean-nelson/
- [adapt.com.au, 2026] Dean Nelson biography | https://adapt.com.au
- [youtube.com, 2026] Dean Nelson interview
- [addc.com, 2026] Dean Nelson role at Uber | https://addc.com
- [imasons.org, 2026] Infrastructure Masons leadership | https://imasons.org/blog/bridging-the-digital-divide-fireside-chat/
- [Craft.co, 2026] Cato Digital company profile | https://craft.co/cato-digital
- [Tracxn, Unknown] Cato Digital funding | https://tracxn.com/d/companies/catodigital/___nm3zZ_VnOtg3vd5YA6e7kazH01mjznF4DkgxxeHCkE/funding-and-investors
- [Tracxn, 2026] Cato Digital seed round | https://tracxn.com/d/companies/cato-digital/___nm3zZ_VnOtg3vd5YA6e7kazH01mjznF4DkgxxeHCkE/funding-and-investors
- [PitchBook, 2025] Cato Digital investors | https://pitchbook.com/profiles/company/58258-09
- [LinkedIn, Unknown] Cato Digital OCP status | https://www.linkedin.com/company/cato