SUB1 Data Centres

What SUB1 Data Centres does

SUB1 Data Centres (legal entity SUB1 DCS Ltd.) is a London-based, privately held data centre developer that designs and delivers custom-built, AI-ready facilities through the retrofitting of brownfield sites. The company's core technology stack centres on Direct Liquid Cooling, closed-loop chiller systems, and a proprietary "3Ps" development methodology that bundles data-centre-grade power procurement from diverse substations, well-located property with multi-carrier connectivity, and full detailed planning permission into a single market-ready deliverable. SUB1 deploys in months versus the industry-standard 4-7 year build cycle and positions its environmental credentials around repurposing brownfield assets, recycling water through closed-loop chillers, and integrating renewable energy via its sister company Infrabee.

The company serves three primary customer segments: AI-powered technology companies requiring high-density GPU compute, neocloud providers needing infrastructure beyond standard colocation constraints, and wholesale colocation buyers seeking 50% lower operating costs combined with appreciating land and building assets. Pricing is not publicly disclosed; customers engage SUB1 directly through enterprise sales to either lease or purchase fully built data centres.

Commercially, SUB1 operates across the United Kingdom, United States, and European Union. In 2024 the company secured a strategic investment from Boultbee Brooks Real Estate and entered a strategic collaboration with the UK Atomic Energy Authority. The business model is project-based real-asset development rather than a recurring software or managed-service revenue stream, and the company has no publicly disclosed revenue, customers, or headcount figures beyond a stated range of 1-10 employees.

Name

SUB1 Data Centres

Legal name

SUB1 DCS Ltd.

Website

https://sub1.io

Company type

Private

Operating status

Operating

Headcount range

1–10 employees

Short description

SUB1 Data Centres is a London-based private developer that retrofits brownfield sites into custom, AI-ready data centres with Direct Liquid Cooling. It targets AI tech firms, neocloud providers, and wholesale colocation buyers across the UK, US, and EU via direct enterprise sales and lease-or-own contracts.

Ownership category

akta.pro rank

Product category

Data Centre Development & Infrastructure

NAICS

Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (518), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (5182)

SIC

Services-Computer Rental & Leasing (7377), Land Subdividers & Developers (No Cemeteries) (6552)

akta.pro industry

PRIMARYHDABACAA

Retail Colocation (Multi-Tenant Data Centers)

Hardware, Technology & Telecom/Cloud & Data Center Infrastructure/Data Center Facilities & Colocation

SECONDARYHDABACAD

Managed Colocation & Remote Hands Services

Hardware, Technology & Telecom/Cloud & Data Center Infrastructure/Data Center Facilities & Colocation

Keywords

• Data centre development
• AI infrastructure
• Wholesale colocation
• Brownfield repurposing
• Liquid cooling

Headquarters

HQ city

London

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Infrastructure, Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales

Revenue model

1. Data Centre Asset Ownership: SUB1 develops custom data centres that customers can own, creating appreciating assets rather than renting colocation space. Revenue generated through asset sales or long-term leases to enterprise customers.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

SUB1 is a data centre developer that retrofits brownfield sites into custom-built, AI-ready data centres. The company delivers turnkey facilities—securing power, property and planning permissions—and outfits them with advanced cooling (Direct Liquid Cooling, closed-loop chillers) tailored for AI, neocloud and wholesale colocation customers. Customers can lease or own these facilities, treating them as appreciating assets rather than rented colocation space.

Product overview

SUB1 is a data centre developer offering custom-built data centre solutions for the AI-powered and Neocloud era. Rather than a unified software platform, the company operates as a real estate and infrastructure developer providing three core offerings: Custom Data Centre Development (retrofitting brownfield sites with full planning permissions), AI-Powered Data Centre Infrastructure (featuring Direct Liquid Cooling for GPU clusters), Wholesale Colocation (50% lower operating costs with appreciating asset value), and Neocloud Data Centre Solutions. The company handles the 3Ps framework—Power (securing data-centre grade power from diverse substations), Property (finding well-located properties with multi-carrier connectivity), and Permissions (gaining full detailed planning permission). SUB1 also offers environmental sustainability through Repurpose (brownfield focus), Recycle (closed-loop chillers and water recycling), and Renew (onsite solar and renewable energy via sister company Infrabee).

Differentiator

Problem solved

Functional benefit

Brands

• Hyper-Efficient Edge Data Centres: Tagline describing SUB1's focus on efficient edge data centre solutions

Products and services

• Custom Data Centre Development Turnkey custom-built data centre development that retrofits brownfield sites into operational facilities, handling power procurement, property acquisition, multi-carrier connectivity and full detailed planning permission for AI-powered and neocloud customers.
• AI-Powered Data Centre Infrastructure Data centre facilities purpose-built for AI compute workloads, equipped with Direct Liquid Cooling (DLC) capabilities to support high-performance GPU clusters for machine learning training and inference.
• Wholesale Colocation Wholesale data centre hosting offering 50% lower operating costs versus traditional wholesale colocation, with the option to own land and buildings as appreciating assets that grow equity value.
• Neocloud Data Centre Solutions Purpose-built data centre infrastructure for neocloud providers, offering custom configurations free from the constraints of lowest-common-denominator colocation, supporting liquid cooling, high-performance compute and renewable fuel options.

Quantifiable outcome

• 50% lower operating costs compared to traditional wholesale colocation
• +1 more outcomes

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Two partnerships are on record, tiered strategic and minor.

• UK Atomic Energy AuthoritystrategicStrategic or Co-development PartnerStrategic collaboration announced with UK Atomic Energy Authority on data centre project. UKAEA brings expertise in high-performance computing and energy infrastructure, supporting SUB1's development of advanced data centre facilities.
• InfrabeeminorStrategic or Co-development PartnerSister company providing renewable energy options. Infrabee supplies renewable energy consumption options as part of SUB1's environmental credentials (Renew initiative), complementing the company's sustainable data centre development approach.

Scale indicators1 record

Recent moves5 records

Expansion highlights5 records

Broad incumbents

• Equinix: Global colocation leader operating IBX data centres across all major regions. Directly comparable in offering wholesale and retail colocation services, but at vastly larger scale with established hyperscale and enterprise customer base.
• Digital Realty: Largest global wholesale data centre provider with PlatformDIGITAL offering. Operates in same UK/US/EU geographies as SUB1 and serves comparable AI/cloud customer segments with hyperscale-grade facilities.

Direct peers

• EdgeConneX: Specialist in custom-built, edge-to-hyperscale data centres with strong AI-ready and high-density capabilities. Comparable to SUB1 in offering bespoke builds to AI/cloud customers rather than standard retail colocation.
• Vantage Data Centers: Wholesale data centre operator with strong presence in UK, EU and US markets. Closely comparable in target customer (hyperscale, AI, neocloud) and in offering custom-built, high-density facilities with liquid cooling capabilities.
• Stack Infrastructure: Wholesale data centre developer backed by IPI Partners operating across US and Europe. Direct competitor in custom-built hyperscale and AI-ready facilities for cloud and neocloud customers.
• CyrusOne: Data centre REIT/operator focused on hyperscale and AI workloads across US and European markets. Comparable customer base (large cloud and AI providers) and focus on high-density builds.
• Compass Datacenters: Custom wholesale data centre builder specialising in purpose-built facilities for hyperscalers. Direct competitor to SUB1's custom-build/wholesale model, particularly for AI and cloud customers.
• NexGen Networks / Yondr: Hyperscale data centre developer focused exclusively on serving the world's largest cloud and AI providers. Comparable in custom-built AI-ready capacity, though operating at much larger scale than SUB1.

Emerging players

• CoreWeave: AI-focused neocloud provider with significant owned and leased data centre infrastructure for GPU workloads. Comparable as both potential customer (in SUB1's neocloud segment) and ecosystem signal of AI-infrastructure demand.

Others

• Infrabee: Sister company providing renewable energy solutions to SUB1. Closely related corporate entity that supports SUB1's 'Renew' pillar and indicates integrated energy-infrastructure approach rather than standalone competitor.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks7 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/sub1dcs

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about SUB1 Data Centres