Top 25 Medical Startup Investors in Bulgaria (November 2026)

Portfolio highlights

• Findery — Find and leave notes anywhere in the world, discover local knowledge, hidden secrets, and exciting stories. Share your travel knowledge, geoblog, or local news!
• GAMINSIDE — GAMINSIDE revolutionizes your relationship with your customers. As European full service provider, we deliver the complete package with solutions, services and software for gamified loyalty that is tailor-made and unique to your products, brands and customers. Integrate the best ideas from gamification and customer loyalty in your business areato exceed your commercial targets with GAMINSIDE.
• Polaron — Polaron connects process, structure, and performance using AI and image data to accelerate how materials are characterised, designed, and manufactured.

Portfolio highlights

• Procuros — More and more sales teams struggle with supplier portals. We help you integrate digitally with common supplier portals and consolidate all order documents.
• Flinn — We are driven to impact the health of millions of people around the globe by enabling medical companies to launch and operate products more efficiently. To make this vision come true, we established a customer-centric, experimentation-driven product development approach.
• Graph Therapeutics — Graph Therapeutics - precision immunology

Portfolio highlights

• RobCo — Easily automate the repetitive tasks in your production facility with modular industrial robots from RobCo.
• Spiich Labs — AI for revenue teams that win on relationships. Spiich preps your meetings, updates your CRM and drafts follow-ups. Reps save 9+ hours every week.
• Integral — Bookkeeping, financial statements, and payroll all from one source

Portfolio highlights

• Exein — Exein develops embedded cybersecurity solutions designed to secure Internet of Things (IoT) and connected devices. The company provides a platform that integrates security directly into the firmware of embedded systems, enabling real-time threat detection, monitoring, and response. Exein’s technology focuses on runtime protection and behavioranalysis at the edge, helping manufacturers secure devices without requiring major hardware changes or external software agents. Its solution is compatible with widely used real-time operating systems (RTOS) and Linux-based environments, allowing for flexible integration across different devices. The company also offers tools for vulnerability assessment and threat intelligence tailored for firmware-level defense. Exein supports developers with APIs and SDKs to incorporate security features during the product development phase. Through its platform, the company addresses growing security risks in critical sectors such as automotive, industrial automation, and consumer electronics.
• Rivercell — Rivercell develops a proprietary, programmable laboratory data platform alongside an artificial intelligence world model of the human cell to map and analyze therapeutic cellular responses. The integrated framework combines automated longitudinal, multimodal, and perturbational wet-lab testing to collect high-resolution datasets measuring how living tissue changes over time under specific treatments. Its value proposition is centered on serving as a cross-disease discovery engine that accelerates and de-risks drug development by accurately forecasting cellular mutations, clinical efficacy, and treatment resistance in silico.
• Rabot Energy — Rabot Charge offers intelligent charging management solutions for customers to charge their electric cars at home.

Portfolio highlights

• Tromero — Tromero - cost effective Machine Learning Training & Hosting
• Cardino — Cardino - Verkaufen Sie Ihr E-Auto digital zum besten Preis. Entdecken Sie die einfache und bequeme Art, Ihr Elektroauto online zu verkaufen.
• Flinn — We are driven to impact the health of millions of people around the globe by enabling medical companies to launch and operate products more efficiently. To make this vision come true, we established a customer-centric, experimentation-driven product development approach.

Portfolio highlights

• Flinn — We are driven to impact the health of millions of people around the globe by enabling medical companies to launch and operate products more efficiently. To make this vision come true, we established a customer-centric, experimentation-driven product development approach.

Portfolio highlights

• Finovox — Finovox provides a solution for detecting false documents. They offer investigative tools to analyze, understand, and explain fraud. Additionally, they provide users with hard evidence of fraud.
• Artificial Labs — Artificial is the power between brokers and insurers in the specialty market. Underwriting technology and placement tools to move risk faster, with less in the way.
• Stoa Corporation — Save with Stoa and unlock premium perks upfront. Build better saving habits, protect your deposit, and enjoy real rewards with your Saving Score.

Portfolio highlights

• FindMeCure — This is the Google of Clinical Trials. Find suitable treatments in development and apply for participation within minutes. Search now.

Portfolio highlights

• Flinn — We are driven to impact the health of millions of people around the globe by enabling medical companies to launch and operate products more efficiently. To make this vision come true, we established a customer-centric, experimentation-driven product development approach.
• Atlas Metrics — The single source of truth for your ESG data
• Hive Robotics — Hive Robotics GmbH is developing scalable, cutting-edge technology designed to safely and securely command, control, and connect any type of robot or unmanned system, enabling advanced swarming and teaming capabilities across a wide range of operational environments, from industrial automation to defense and disaster response.

Portfolio highlights

• Sendance — Sendance develops and sells electronics and sensors on permeable, stretchable, and structurally adapted substrates. Permeability and structural adaptation enable the integration of sensors in areas where this was previously not possible.
• Flinn — We are driven to impact the health of millions of people around the globe by enabling medical companies to launch and operate products more efficiently. To make this vision come true, we established a customer-centric, experimentation-driven product development approach.

Portfolio highlights

• Kertos — Kertos is a software company that develops and provides a holistic compliance platform in Europe, implementing automation and execution in a highly regulated environment focusing on the operational needs for all stakeholders involved. With their focus on product, integration, and automation they enable businesses to scale, to adopt and to maneuverin modern tech environments with only a fraction of the current workload. They drive consumer engagement and help companies to interact with their customers in sensitive matters.
• Flinn — We are driven to impact the health of millions of people around the globe by enabling medical companies to launch and operate products more efficiently. To make this vision come true, we established a customer-centric, experimentation-driven product development approach.
• Olivaw Robotics — Welcome to Olivaw, the ultimate solution for managing and upskilling your robot fleet. Explore how Olivaw can optimize your operations.

Portfolio highlights

• Hero — Hero is a B2B payments and financing platform, offer direct online payment experience and receive your money immediately.
• Otterspace — Otterspace is an NFT company that aims to use earned NFTs rather than purchased NFTs to reward and recognize participation in decentralized autonomous organizations (DAOs). Its non-transferable badge protocol assists DAOs in developing more effective incentive systems, automating permissions, and enabling non-financialized governance.
• Flinn — We are driven to impact the health of millions of people around the globe by enabling medical companies to launch and operate products more efficiently. To make this vision come true, we established a customer-centric, experimentation-driven product development approach.

Portfolio highlights

• calliora — Calliora develops an artificial intelligence platform designed to integrate hospital clinical documentation and coding systems to identify billing errors before invoices are sent to health insurers
• Penelope Health — Penelope Health provides API infrastructure for real-time payer medical policy intelligence. The company's knowledge graph structures medical coverage policies from major payers into programmable data, making policy information instantly accessible through a unified API. The platform delivers contextual code coverage across >500,000 extracted CPT, HCPCS, and ICD codes, with daily policy updates that track changes as they happen. Penelope's API allows organizations to query specific code coverage, compare payer policies, and understand medical necessity requirements without manual document review. Use cases span revenue cycle management (claim scrubbing, prior authorization, appeals automation), payer competitive intelligence, medical device field sales coverage verification, and healthtech companies building billing capabilities. The platform serves as neutral policy infrastructure, aggregating coverage criteria from UnitedHealthcare, Cigna, Aetna, Humana, and other major payers. Founded by a Cambridge-trained physician and ML engineer, Penelope Health operates as the policy intelligence layer for healthcare, turning scattered PDF documents into structured, real-time data.
• QuantHealth — Quant Health offers drug simulation, computational biology, clinical data science, respiratory, trial simulation, and oncology services.

Portfolio highlights

• Flinn — We are driven to impact the health of millions of people around the globe by enabling medical companies to launch and operate products more efficiently. To make this vision come true, we established a customer-centric, experimentation-driven product development approach.
• Vital Care — Vital Care specializes in providing infusion therapy services.

Portfolio highlights

• Flinn — We are driven to impact the health of millions of people around the globe by enabling medical companies to launch and operate products more efficiently. To make this vision come true, we established a customer-centric, experimentation-driven product development approach.

Portfolio highlights

• Magfi — A search engine that analyzes communities into WhatsApp, Telegram, and Discord with AI, ML, and NLP and places ads with micro-targeting.
• Visibilio — At Visibilio, we are at the forefront of a seismic shift in how companies connect with their clients. Our mission is simple: to empower companies, organizations, and individuals to seamlessly create, repurpose, and distribute meaningful content—turning their audiences into loyal clients. We believe that building your own audience shouldn’t be hardor expensive, and is much more efficient compared to buying it from platforms like Google/Facebook.Who We AreVisibilio was founded by a team of experienced professionals: Alexei Lazarov, former editor-in-chief of Bulgaria’s leading business media Capital; Zoran Arsovski, a marketing professional, entrepreneur, and investor; and Stoyan Kondev, a skilled software developer and BPM consultant. Together, they bring a unique blend of editorial expertise, business acumen, and technological innovation to drive transformative change.What We Do (And Why)Visibilio builds an AI-powered agentic workforce that transforms the way content is created and distributed. With our swarms and constelations of AI agents, telling interesting stories and building loyal audiences is no longer time-consuming or costly. We believe that the way people consume information and how businesses connect with clients is undergoing a profound transformation. In the coming years, it will be essential for companies to think like publishers—creating consistent, meaningful content, building their own audiences, and converting them into loyal customers.At Visibilio, we are developing the tools to make this shift seamless, helping businesses save time, effort, and resources while staying ahead in an evolving digital landscape.
• Native Teams — Hire anyone, anywhere with Native Teams. Use EOR and PEO services to employ global talent or get compliant employment as a freelancer.

Portfolio highlights

• FindMeCure — This is the Google of Clinical Trials. Find suitable treatments in development and apply for participation within minutes. Search now.

Portfolio highlights

• 1club AI — 1club is an AI-native club management software platform built for gyms, fitness studios, and multi-sport facilities. It helps operators automate memberships, bookings, scheduling, billing, and member communication in one unified system. With built-in marketplace distribution, branded member portals, and AI agents that assist both staff and members, 1club enables clubs to streamline operations, increase revenue, and deliver a modern digital experience to their communities.
• Veridion — Veridion is a living digital replica of the business world. Decision-grade data for enterprise scale systems
• Nanogram — Nanogram is an AI-powered gaming startup that creates an instant prompt-to-game platform, allowing anyone to build and share interactive short-form video games. Frequently described as "TikTok for mobile games," the company delivers an endless, vertical social feed of byte-sized, zero-download games that players swipe through and playinstantly.

Portfolio highlights

• Flinn — We are driven to impact the health of millions of people around the globe by enabling medical companies to launch and operate products more efficiently. To make this vision come true, we established a customer-centric, experimentation-driven product development approach.
• Dunia Innovation — Catalysing the energy transition.
• silana — Technology to revolutionize fashion - economical, ecological and social

Portfolio highlights

• FindMeCure — This is the Google of Clinical Trials. Find suitable treatments in development and apply for participation within minutes. Search now.

Portfolio highlights

• FindMeCure — This is the Google of Clinical Trials. Find suitable treatments in development and apply for participation within minutes. Search now.

Portfolio highlights

• Flinn — We are driven to impact the health of millions of people around the globe by enabling medical companies to launch and operate products more efficiently. To make this vision come true, we established a customer-centric, experimentation-driven product development approach.

Portfolio highlights

• Flinn — We are driven to impact the health of millions of people around the globe by enabling medical companies to launch and operate products more efficiently. To make this vision come true, we established a customer-centric, experimentation-driven product development approach.

Portfolio highlights

• Flinn — We are driven to impact the health of millions of people around the globe by enabling medical companies to launch and operate products more efficiently. To make this vision come true, we established a customer-centric, experimentation-driven product development approach.

Portfolio highlights

• FindMeCure — This is the Google of Clinical Trials. Find suitable treatments in development and apply for participation within minutes. Search now.