Substrate AI
Substrate AI is a Spain-listed, Valencia-based sovereign AI infrastructure and platform company offering GPU cloud (Serenity Cloud), an enterprise generative-AI agent platform (Serenity Star), and AI talent (Serenity Teams) to European governments, regulated enterprises and AI startups.
- Company typePublic
- Founded2022
- HeadquartersValencia, Spain
- Headcount11–50
- GTM typeB2B
- OfferingSoftware
What Substrate AI does
Substrate AI S.A. is a Spain-domiciled, BME Growth-listed AI infrastructure and platform company headquartered in Valencia, operating as a controlled subsidiary of Swedish-listed Subgen AI AB. The company is consolidating its offering into the Serenity Platform, a three-layer architecture comprising Serenity Cloud (sovereign GPU infrastructure with on-demand compute, enterprise reservations and custom AI Factories, including a purpose-built facility in Talavera de la Reina), Serenity Star (an enterprise generative-AI ecosystem for no-code AI agent creation, multi-LLM orchestration, RAG and governance) and Serenity Teams (a curated on-demand AI talent marketplace). The technology stack runs on NVIDIA B300, B200, H200, H100 and A100 GPUs with managed Kubernetes, CDN, edge security/WAAP and AI Workflow Automation via Model Context Protocol, certified against GDPR, ISO 27001, SOC 2, ENS, HDS and HIPAA standards.
Substrate AI generates revenue through usage-based GPU compute (on-demand and 1–24 month enterprise reservations with up to 50% discounts), subscription-based Serenity Star agent and application services, multi-year custom AI Factory contracts for government, defense and large enterprises, and recurring managed-services billing for Kubernetes, databases, storage and CDN. Go-to-market is hybrid: self-serve PLG via the Serenity Cloud console for developers and startups, direct enterprise sales for sovereign AI Factory builds, and a partner-first channel targeting MSPs, ISVs and consultants. Target customer segments include Government and Public Sector, regulated Enterprises (healthcare, finance), AI-native startups and channel partners, with a stated operational footprint across Europe, North America and APAC.
The company was founded in 2022, with co-founders Lorenzo Serratosa (CEO) and José Iván García (Vice President and CEO of the Health division) leading the business alongside a CXO bench including a COO (ex-Oracle/NexGen Cloud), CTO, CFO, CMO and a VP Engineering with a decade at NVIDIA. Eduardo Montes, former CEO of Siemens Spain, serves as Independent Chairman. Substrate AI is preparing a EUR 40 million 3-year convertible bond raise while Subgen AI AB has launched a voluntary public tender offer to increase ownership to at least 95% at a 198.7% premium, valuing the outstanding A shares at approximately EUR 35.7 million.
Substrate AI firmographics
Firmographics- Name
- Substrate AI
- Legal name
- SUBSTRATE AI S.A.
- Website
- https://substrate.ai
- Company type
- Public
- Founded year
- 2022
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Substrate AI is a Spain-listed, Valencia-based sovereign AI infrastructure and platform company offering GPU cloud (Serenity Cloud), an enterprise generative-AI agent platform (Serenity Star), and AI talent (Serenity Teams) to European governments, regulated enterprises and AI startups.
- Ownership category
- akta.pro rank
Substrate AI industry classification
Industry- Product category
- AI Infrastructure Platform (Sovereign GPU Cloud)
- NAICS
- Software Publishers (51321)
- SIC
- Services-Prepackaged Software (7372)
- akta.pro primary industry
- End-to-End Enterprise AI Platforms (MLOps & Model Lifecycle Management) (HDAEANAA)
- akta.pro secondary industries
- AI Compute Virtualization & Scheduling (GPU virtualization, cluster schedulers) (HDAAAAAG), AI Application Enablement Platforms (Copilot/Agent Frameworks, SDKs) (HDAEANAJ), Model Serving, Inference & Deployment Platforms (APIs, Edge/On-Prem) (HDAEANAC)
Keywords
Where Substrate AI is headquartered
LocationHeadquarters
- HQ city
- Valencia
- HQ country
- Spain
- HQ region
- Europe
Offices2 records
Markets served
Substrate AI business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Technology or R&D, Infrastructure, Personnel, Operations, Marketing or Sales
Revenue model
- GPU Infrastructure Services: On-demand and reserved GPU compute services for AI training and inference workloads. Combines recurring revenue from reservations with usage-based billing for on-demand access.
- AI Agent & Application Layer (Serenity Star): Subscription-based AI agent creation, orchestration, and enterprise AI application services. Includes multi-LLM marketplace and governance controls.
- AI Factory Contracts: Custom-built sovereign AI Factory deployments for government, defense, and enterprise. Long-term infrastructure contracts with guaranteed capacity.
- Managed Services: Managed Kubernetes, databases, container services, CDN, bare metal, and virtual instances with recurring monthly billing
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Usage-based | Pay-as-you-go | GPU On-demand |
| Usage-based | Pay-as-you-go | GPU On-demand Alternative |
| Subscription | Monthly | Enterprise Reservations |
| Other | Multi-year contract | Custom AI Factory |
Go-to-market motion4 records
Distribution channels4 records
Marketing channels6 records
Substrate AI product offering
Product offeringCore offering
Substrate AI operates a sovereign AI platform delivering GPU infrastructure-as-a-service (Serenity Cloud), an enterprise generative AI ecosystem for building and orchestrating AI agents, copilots, and workflows (Serenity Star), and on-demand curated AI talent (Serenity Teams). Customers provision on-demand GPU compute, reserve long-term capacity, or commission custom AI Factories with full European data residency, GDPR/ISO/SOC/HDS compliance, and renewable-energy-powered infrastructure located in Europe.
Product overview
Substrate AI offers a three-layer integrated AI platform architecture: the Application Layer (Serenity Star), the Infrastructure Layer (Serenity Cloud), and the AI Talent Layer (Serenity Teams). Serenity Star is the enterprise generative AI ecosystem for building AI agents, copilots, and workflows with governance and security controls. Serenity Cloud provides sovereign GPU cloud infrastructure with on-demand compute, dedicated environments, and custom AI Factories. Serenity Teams delivers curated on-demand AI talent. The platform emphasizes European data sovereignty, compliance with GDPR/ISO/SOC standards, and sustainable infrastructure powered by renewable energy.
Differentiator
Problem solved
Functional benefit
Brands
- Serenity Cloud: Europe's Sovereign AI Cloud platform providing GPU infrastructure, Kubernetes management, and enterprise-grade security for AI workloads.
- Serenity Star
- Serenity Teams
Products and services
- Serenity Cloud Europe's sovereign AI cloud platform providing GPU infrastructure-as-a-service for deploying, training, and scaling AI workloads. Offers on-demand GPU compute, dedicated environments, and custom-built AI Factories with enterprise-grade security and full European data sovereignty.
- Serenity Star Enterprise-grade generative AI ecosystem for building, deploying, and governing intelligent AI agents, workflows, and solutions. Includes no-code AI Agent Builder, Multi-LLM Marketplace, LLM Studio for custom model fine-tuning, and enterprise governance controls with audit trails.
- Serenity Teams AI Talent layer providing curated, on-demand AI expertise including vetted freelancers and specialized squads for AI projects. Flexible engagement for startups, SMEs, and enterprise teams with strategic direction aligned to CTO and business goals.
- AI Factories Custom-built sovereign AI infrastructure for government, defense, and enterprise organizations. Purpose-built environments with GPU-dense, liquid-cooled NVIDIA hardware architecture, dedicated InfiniBand or RoCE fabric, and full regulatory alignment (GDPR, ISO 27001, SOC 2, HDS).
Quantifiable outcome
- Up to 100% carbon emissions reduction vs traditional data centers through renewable energy and closed-loop cooling
- +2 more outcomes
Companies that use Substrate AI
Customer profileNamed customers4 records
Segments5 records
Ideal customer profiles5 records
Substrate AI technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration2 records
AI capability11 records
Feature8 records
Substrate AI partnerships and signals
Strategic signalPartnerships
Nine partnerships are on record, tiered core, supporting and flagship.
- NVIDIAcoreTechnology partner providing GPU hardware (B300, B200, H200, H100, A100, RTX series). Latest NVIDIA architectures optimized for training and inference workloads on Serenity Cloud platform.
- DellcoreHardware infrastructure partner for AI Factory builds and enterprise GPU solutions integrated into sovereign AI platform.
- Super Micro (Supermicro)coreServer and storage systems partner for AI Factory infrastructure, providing GPU-dense server solutions.
- HPE (Hewlett Packard Enterprise)coreEnterprise infrastructure partner providing server and hybrid cloud solutions for sovereign AI deployments.
- WEKAcoreData platform partner providing parallel file system solutions optimized for AI/ML workloads and GPU infrastructure.
- LenovosupportingInfrastructure hardware partner for enterprise GPU solutions and data center products.
- VAST DatacoreData infrastructure partner providing the VAST Data Platform for AI workloads with high-performance storage.
- StealthiumsupportingSecurity technology partner for enterprise AI infrastructure protection.
- Subgen AI AB (Parent Company)flagshipSubstrate AI is a controlled Spanish subsidiary of Subgen AI AB. Parent company announced voluntary public offer (March 2026) to increase ownership to at least 95%, valuing Substrate AI at EUR 35.7 million. Subgen AI is a leading European AI group with Substrate serving as the investment platform for AI infrastructure including the Talavera de la Reina data center.
Scale indicators6 records
Recent moves6 records
Expansion highlights6 records
Substrate AI competitors and assessment
Company assessmentDirect peers
- Lambda Labs: GPU cloud provider specializing in NVIDIA-based compute for AI training and inference, with on-demand and reserved capacity models. Directly competes with Serenity Cloud's core GPU-as-a-service proposition.
- CoreWeave: Leading independent GPU cloud provider offering on-demand NVIDIA H100/H200/Blackwell compute and AI infrastructure services. Directly comparable to Substrate AI's Serenity Cloud offering and target customer base of AI builders, though significantly larger and US-based.
- RunPod: GPU cloud platform offering on-demand and serverless GPU compute for AI workloads, with self-serve developer experience. Comparable product-led GTM and on-demand GPU model to Substrate's Serenity Cloud console offering.
- Nebius: European-headquartered AI infrastructure provider offering GPU compute clusters and a full-stack AI platform. Closest geographic and product peer to Substrate AI's sovereign positioning, combining GPU cloud with AI development tooling.
- Crusoe Energy: GPU cloud provider built on stranded/renewable energy, competing in the AI infrastructure market with emphasis on sustainable compute. Comparable to Substrate AI's sustainability positioning around renewable-powered AI Factories.
- Together AI: AI cloud platform combining GPU compute with model serving, fine-tuning, and inference APIs. Comparable integrated approach spanning infrastructure and AI model lifecycle, similar target customers in AI startups and enterprises.
Broad incumbents
- Scaleway: European cloud provider with GPU instances and bare-metal offerings, emphasizing European sovereignty. Comparable European sovereign cloud positioning, though broader portfolio and earlier-stage AI specialization.
- OVHcloud: European cloud infrastructure incumbent offering dedicated servers, private cloud, and increasingly AI/GPUs. Comparable sovereign European positioning and target regulated workloads, though broader portfolio rather than AI-specialized.
- Hetzner: European hosting and dedicated server provider expanding into cloud and GPU offerings. Comparable European-rooted, value-oriented infrastructure positioning, though broader portfolio and limited AI-specific tooling.
Emerging players
- Mistral AI: European AI foundation model and platform company with sovereign AI positioning. Comparable European sovereignty narrative and enterprise/government target segments, though focused on models rather than GPU infrastructure.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Substrate AI social profiles
Digital presenceSubstrate AI compliance and trust
Trust signalCompliance16 records
Substrate AI financial estimates
Financial estimateRevenue estimate
Valuation estimate
Substrate AI leadership team
Management profileNumber of profiles
Profiles11 records
Substrate AI funding detail
Funding detailFunding overview
Funding rounds2 records
Investors3 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Substrate AI M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Substrate AI
What does Substrate AI do?
Substrate AI operates a sovereign AI platform delivering GPU infrastructure-as-a-service (Serenity Cloud), an enterprise generative AI ecosystem for building and orchestrating AI agents, copilots, and workflows (Serenity Star), and on-demand curated AI talent (Serenity Teams). Customers provision on-demand GPU compute, reserve long-term capacity, or commission custom AI Factories with full European data residency, GDPR/ISO/SOC/HDS compliance, and renewable-energy-powered infrastructure located in Europe.
Is Substrate AI a public or private company?
Substrate AI is a public company. It is classified as public and is currently operating.
When was Substrate AI founded?
Substrate AI was founded in 2022. It employs 11 to 50 people.
Where is Substrate AI based?
Substrate AI is headquartered in Valencia, Spain, in the Europe region.
How does Substrate AI make money?
Four revenue lines are on record. GPU Infrastructure Services are the primary driver. The others are AI Agent & Application Layer (Serenity Star), AI Factory Contracts and managed Services.
Who are Substrate AI's main competitors?
Direct peers on record are Lambda Labs, CoreWeave, RunPod, Nebius, Crusoe Energy and Together AI. Broad incumbents are Scaleway, OVHcloud and Hetzner. Mistral AI is listed as an emerging player.
Does Substrate AI have an API?
Yes. Serenity Cloud provides API tokens for enterprise deployments, enabling programmatic access to cloud resources including virtual machines, containers, Kubernetes clusters, databases, object storage, and networking features. The platform supports API-based provisioning and management of GPU compute, serverless functions, and load balancers. Enterprise tier includes API tokens for infrastructure automation. Developer documentation is at docs.substrate.ai.
What industry is Substrate AI in?
Substrate AI's product category is AI Infrastructure Platform (Sovereign GPU Cloud). Its primary akta.pro industry code is HDAEANAA, End-to-End Enterprise AI Platforms (MLOps & Model Lifecycle Management), with a secondary code of HDAAAAAG, AI Compute Virtualization & Scheduling (GPU virtualization, cluster schedulers). Its NAICS code is 51321 and its SIC code is 7372.