DiscreteStack
Category: AI Infrastructure
Bulgarian AI infrastructure startup building an on-premise AI deployment and governance platform that lets regulated European enterprises run open-source LLMs on their own infrastructure. DiscreteStack was founded in 2025. The company is led by Hristo Todorov. Based in Sofia, Bulgaria. Team size: 1-10. Total funding raised: $934K. Latest round: Seed. Key investors include CleverPine Ventures, Milen Manev, Stoil Vasilev.
- Founded
- 2025
- Headquarters
- Sofia, Bulgaria
- Team size
- 1-10
- Total funding
- $934K
Value proposition
Enables businesses to run state-of-the-art open-source AI models on their own servers, private cloud, or fully isolated/offline environments — giving organizations control over AI infrastructure, data, security, and regulatory compliance without relying on external cloud providers.
Products and solutions
On-premise AI deployment and governance platform with predictable licensing, patent-pending engineering optimizations that enable large AI models to run on a single standalone server, supports fully isolated/offline (air-gapped) environments.
Unique value
European AI sovereignty — organizations own and control the infrastructure their AI runs on rather than renting it from US hyperscalers, with predictable licensing and offline/air-gapped deployment.
Target customer
Regulated European enterprises in finance, insurance, and the public sector that need data sovereignty and compliance (EU AI Act).
Industries served
Financial services, insurance, public sector, and other regulated industries.
Technology advantage
Patent-pending engineering optimizations that fit large AI models onto a single standalone server; ability to operate in fully isolated, offline environments; cost-efficient inference economics (owning infrastructure vs renting tokens).
How they differentiate
Focus on European AI sovereignty and on-premise/air-gapped deployment for regulated industries, with predictable licensing and patent-pending single-server optimizations, versus cloud-centric LLMOps/governance platforms.
Main competitors
TrueFoundry, Braintrust, Portkey
Key partnerships
NVIDIA Inception Program, AI Partnership Corporation (Canada-based, 190+ companies), European Innovation Council Accelerator Seal of Excellence.
Notable customers
First enterprise customers in Bulgaria and international markets (names not disclosed).
Major milestones
Founded 2025, joined NVIDIA Inception (June 2026), received EIC Accelerator Seal of Excellence, joined AI Partnership Corporation, raised €800K seed (Aug 2026).
Growth metrics
First enterprise customers secured in Bulgaria and international markets within first year; joined NVIDIA Inception (June 2026).
Market positioning
Early-stage (seed) player in the European sovereign/on-premise AI infrastructure space, targeting regulated sectors amid growing EU AI Act compliance and data-sovereignty demand.
Geographic focus
Europe, with first enterprise customers in Bulgaria and international markets.
Patents and IP
Patent-pending engineering optimizations (per company statements).
About Hristo Todorov
Ex-CleverPine Co-founder & VP of Technology; Co-founder of Vaerolabs (joint venture with Lufthansa Technik); Technical University Sofia. Serial entrepreneur and investor.
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Official website: https://discretestack.com
