Bulgaria’s startup landscape witnessed a major milestone in the first half of 2025, with EnduroSat emerging as the undisputed leader in terms of capital raised. The Sofia-based space tech company secured two major rounds, including €20 million in February, and a €43 million Series B in May, led by Peter Thiel’s’ Founders Fund, bringing its total funding to €85.72 million. These rounds alone account for the majority of disclosed VC funding in the Bulgarian ecosystem so far this year.
The Bulgarian funding rounds in H1 2025 amounted to €90.08 million.
In this article, you can check the biggest H1 2025’s funding rounds in Bulgaria and key details about the startups.
This article is part of the CEE funding mapping series. Please feel free to contact us if we missed something: [email protected].
Top Bulgaria H1 2025 Funding Rounds
EnduroSat
(two rounds in H1 2025)
About: Engineers, builds, and operates satellites for space missions in Low Earth Orbit (LEO) and beyond, managing everything from mission design to launch and operations. Targets customers in the space industry seeking streamlined satellite solutions.
Founders: Raycho Raychev
Vertical: Space tech
February: €20M
May: €43M
Stage: Series B
Investors: Founders Fund, Ceecat Capital, Morphosis Capital, Freigeist Capital, Neo Ventures
Total funding: €85.72
Lace AI
About: Lace AI uses AI to analyze 100% of inbound calls, automatically classifies outcomes, identifies missed revenue opportunities, and offers targeted coaching, all without additional marketing spend or hiring.
Founders: Boris Valkov
Vertical: AI, Home Services
Latest round: €16.68 million ($19 million)
Stage: Seed
Investors: Bek Ventures, LAUNCHub Ventures, Horizon VC, angel investors including Snowflake’s Marcin Zukowski, Vivino’s Heini Zachariassen, and Payhawk’s Hristo Borisov
Total funding: N/A
TwinKnowledge
(Bulgarian founded in the U.S.)
About: An AI company transforming data intelligence for real estate and the architecture, engineering, construction, and operations (AECO) industries.
Founders: Ivan Panushev
Vertical: PropTech
Latest round: €3.15 ($3.7M)
Stage: Seed
Investors: Camber Creek, Great Wave Ventures
Total funding: €3.15 ($3.7M)
UVIONIX
About: Utilizing AI and autonomous flying robots, the service enhances warehouse inventory and supply chain management through real-time data collection and analysis. It addresses inefficiencies and inaccuracies in inventory systems, enabling enterprises to improve logistics, reduce losses, and optimize material planning.
Founders: Boris Iskrev, Stanislav Darmonski
Vertical: Robotics and warehouse automation
Stage: Seed
Investors: LAUNCHub Ventures, PortfoLion, Robin Capital, Underline Ventures
Total funding: €3M ($3.4M)
LogicStar AI
(Bulgaria, Switzerland – a spin-off from Bulgarian INSAIT and ETH Zurich)
About: AI agents that autonomously maintain software applications by identifying and fixing bugs, complementing existing AI development agents. Logicstar AI provides B2B AI platform for software maintenance automation
Founders: Boris Paskalev, Dr. Mark Niklas Müller, Prof. Martin Vechev, Veselin Raychev
Vertical: AI
Stage: Pre-Seed
Investors: European VC firm Northzone, with angel investors from DeepMind, Fleet, Sequoia scouts, Snyk, and Spotify
Total funding: €2.9M
AIoTCloud
About: Provides a data-driven, AI-enabled energy management platform that aims to simplify energy optimization, cuts carbon emissions, reduces operating costs, and ensures compliance with regulations.
Founders: Nikola Ruychev, Denis Florov, Kaloyan Georgiev, Marko Markov, Vladimir Todorov
Vertical: PropTech
Stage: Growth / Expansion
Investors: CleverPine Ventures (CleverPine’s VC Arm), Dimitar Dimitrov, Blagoy Stoyanov, Vitosha Ventures Partners and Shelly Group
Total funding: €1M
Thinkpilot
About: Purpose-built AI workspace designed to think alongside a product team. It combines a collaborative co-pilot with specialized agents to support ideation, research, validation, and specification.
Founders: Stoimen Veselinov, Megan Wolff, Kiril Dimitrov, Antonio Iliev
Vertical: Product Design & Management Software
Latest round: €600,000
Stage: Pre-Seed
Investors: LAUNCHub Ventures, angel investors
Total funding: €600,000
