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Underline Ventures

Bucharest, Romania · Invests in Europe · Website

Check size

$500K-$1M

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Pre-SeedSeedB2B SaaSAI & Machine LearningDeveloper ToolsCybersecuritySpace & DefenseRoboticsAerospace & DefenseRobotics & AutomationDeveloper Tools & InfrastructureEnterprise SoftwareManufacturing & Industrial

Thesis

Support analytical, action-oriented Eastern European founders building hard technology and deep tech solutions. Founders remain in control while benefiting from strategic guidance, long-term alignment, and operational support through pre-seed to Series A.

Likely not a fit for

Non-technical teams, consumer social apps, discretionary markets, hands-off investor relationships, lifestyle business mentality

How they invest

Lead or follow
Leads or follows
Typical decision
~1 month
Warm intro
Not required
Involvement
Takes a board seat
Fund status
Actively deploying
Assets under mgmt
$20M
Decision process
Solo GP

Partners & team

6 contacts on file

VI

Vlad Ionescu

Venture Partner · Primary contact

BI

BOGDAN IORDACHE

General Partner

CB

Ciprian Borodescu

Entrepreneur in Residence

AB

Alexandru Badut

Venture Partner

MS

Milana Slobtcova

Principal

VM

Violeta Mihai

Space/Defense Analyst

Portfolio

Charter.spaceAerospace Defense

Charter is a modern platform for spacecraft engineering that offers space insurance and supports spacecraft manufacturing and on-orbit asset insurance.

TrickestSecurity Cyber

All-in-One Offensive Security Platform

Deltia.AI

Deltia.AI is a manufacturing vision intelligence platform that enhances productivity on the shop floor by utilizing real-time data gathered from cameras and advanced analytics. Their AI-driven solutions help manufacturers optimize processes, reduce waste, and improve operational efficiency through actionable insights.

SERAAgetech Longevity

Sera is the first Greenhouse Intelligence Platform designed to turn data overload into clear understanding for commercial growers, helping them make better decisions faster and scale reliably.

DesignVerseEnterprise Software

DesignVerse offers custom enterprise solutions that accelerate product development by enabling teams to design and deliver enterprise-grade software faster, integrating seamlessly with existing design systems and workflows.

MixRiftGaming

MixRift is a mixed reality gaming start-up focused on developing immersive and engaging games for platforms like Meta Quest and Apple Vision Pro. They aim to revolutionize casual gaming through innovative mixed reality experiences.

SaleSquezeEnterprise Software

SaleSqueze provides premade 3D configurators for outdoor living products, enabling customers to visualize and configure products while generating instant quotes, thus simplifying the sales process.

GenezioEnterprise Software

Genezio helps you understand, monitor, and optimize how AI mentions your brand, providing actionable insights to improve visibility and performance across AI platforms.

CollabwritingEnterprise Software

Cluing is a collaborative tool that helps users find, share, and organize insights from various online sources, enhancing knowledge management and research efficiency.

VideowiseEcommerce Marketplaces

Videowise is an AI-powered video commerce platform designed to help ecommerce brands and retailers increase conversions and drive measurable growth through shoppable videos, live shopping, and social commerce.

TurneoEnterprise Software

Turneo is an experiences management solution designed for leading experiential hotels, enabling them to manage and sell unique experiences to their guests.

VeridionEnterprise Software

Next-Generation Business Data Curated By AI

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Research briefRead more
Underline Ventures Research Investment Thesis Underline Ventures is a solo-GP, concentrated venture capital fund focused on supporting analytical, action-oriented Eastern European founders building hard technology and deep tech solutions. The fund emphasizes founder-led strategy, long-term alignment, and hands-on operational support from pre-seed through Series A. They believe founders should remain in control of their companies while benefiting from critical guidance and strategic counsel. The fund's investment philosophy is built on three core principles: Founder Control : Founders drive strategy; the fund aligns interests for the long term Strategic Partnership : Beyond capital, the fund helps define strategy, milestones, and priorities Through Thick and Thin : Long-term support through challenges, with proactive guidance and network access Sector and Industry Focus Underline Ventures concentrates on three primary technology domains: Space Tech : Satellite technology, space infrastructure, launch services, space insurance, and on-orbit services. Notable investments include Charter (space insurance), Absolut Sensing (satellite monitoring), and GoCosmic (space scaling). The fund is deeply engaged with the Romanian Space Initiative (ROSPIN) ecosystem. Defence Tech : Security infrastructure, cybersecurity, offensive security automation, and defense-adjacent technologies. Investments like Trickest (adversarial emulation platform) exemplify this focus. Industrial Tech : Advanced manufacturing, automation, process analytics, robotics, and agricultural technology. Portfolio companies include Deltia (AI-based process analytics), SERA (greenhouse management), and Uvionix (autonomous flying robots for inventory). Secondary themes include developer tools and infrastructure (with AI/ML components), creator economy tools, and business software for SMEs. Investment Stage and Ticket Size Stage Focus : Pre-seed, Seed, Late Seed Pre-seed: $250K-$500K for early concept validation Seed: $500K-$1M for product-market fit signals Late Seed: Up to $1M for strong scaling indicators Typical Check Size : $500,000 average (core range: $500K-$1M) The fund invests alongside other investors and helps portfolio companies find co-investors through their network. They typically take board observer or board seat positions in their investments. Recent Activity and Fund Status Fund Details : Fund I : Closed at $20M (November 2023) Status : Actively deploying, private-only fund Model : Solo-GP structure with concentrated portfolio Recent Investments (2025) : February 2025: Uvionix (autonomous flying robots for inventory, hardware) December 2025: EnduroSat participation (satellite technology) November 2025: BibleChat and other portfolio development October 2025: Ongoing follow-on investments in existing portfolio Portfolio Size : 15+ investments from Fund I with focused concentration strategy Portfolio Company Examples The fund's portfolio spans their three core sectors: Space Tech Portfolio : Charter (space insurance and commercial space services) GoCosmic (space startup scaling services) Absolut Sensing (satellite-based monitoring) Related portfolio in satellite and space infrastructure Defence/Security Portfolio : Trickest (SaaS platform for offensive security orchestration and automation) Security and cybersecurity related investments Industrial/Manufacturing Portfolio : Uvionix (autonomous flying robots for real-time inventory, 99.9% accuracy) Deltia (AI-based process analytics platform) SERA (cultivation management and analytics for greenhouses) Nestor (people intelligence platform with predictive analytics) Turneo (hospitality marketplace for in-destination experiences) Software/Developer Tools : DesignVerse (design system to functional code translation) Genezio (serverless backend development) Collabwriting (research knowledge management) Veridion (business data enrichment) B2B SaaS : SaleSqueze (Visual CPQ platform) Goodlegal (legal compliance automation) MixRift (mixed-reality games) Videowise (video infrastructure for commerce) Team and Operating Partners Core Investment Team : Bogdan Iordache (General Partner): Venture capital since 2013, founder of How to Web (Europe's top 10 startup conference), serial entrepreneur with Conectoo exit. Focus: investment, strategy, product positioning Milana Slobtcova (Principal): Startup enthusiast, sourcing specialist, previously with Renderro (Techstars Berlin 2022) Violeta Mihai (Space/Defense Analyst): Space tech specialist, member of Romanian Space Initiative, certified pilot with systems engineering background Operating Partners : Alexandru Badut (Venture Partner): Product leadership expert, built and scaled SaaS/digital products across US, Romania, Hungary, Cyprus Vlad Ionescu (Venture Partner): Former UiPath Head of Growth (11th employee), drove growth from EUR 200K to EUR 500M ARR, B2B growth specialist Ciprian Borodescu (Entrepreneur in Residence): 3x founder, AI entrepreneur, led MorphL acquisition to Algolia, ex-Algolia AI Principal PM building million-ARR AI products Iulian Circiumaru (Venture Partner): Founder turned investor, 7card exit to Sodexo, portfolio: food, beverages, agriculture, ecommerce Support Team : Adriana Spulber (Comms & Services): Startup communications, PR, B2C marketing Cristina Mogic (Talent Partner): 7+ years tech recruiting, HR consulting founder Elena Vrabie (Research Editor): 15+ years in media/business/innovation, content strategy Mihaela Ciobanu (Fund Admin): Ex-UiPath Treasury, financial operations Sebastian Boureanu (CFO): Software company founder providing CFO services Geographic and Founder Preferences Primary Geographic Focus : Eastern Europe (Romania, Poland, Bulgaria, Czech Republic), with secondary focus on Central Europe Founder Profile Preferences : Analytical, action-oriented technical founders Eastern European backgrounds and perspectives Deep domain expertise (space, defense, industrial tech) Proven ability to execute and iterate Founders with scalable ambitions (not lifestyle business mentality) Anti-Thesis : Non-technical founding teams Consumer social or discretionary apps Markets without clear technical moats Founders seeking hands-off investor relationships Decision Process and Timeline Decision Structure : Solo-GP with operating partner input; concentrated decision-making by Bogdan Iordache with input from principals and partners Timeline : 3-4 weeks typical from initial meeting to investment decision (variable based on complexity) Warm Introductions : Appreciated but not required; team actively sources through networks and conferences Due Diligence : Technical and market validation, founder-market fit assessment, network references Typical Post-Investment Involvement Board Involvement : Board observer or board seat (depending on ownership %) Support : Strategic guidance on go-to-market, product prioritization, team building, fundraising strategy Network : Access to 10+ operating partners, founder community from portfolio and How to Web network, Eastern European tech ecosystem Follow-on Support : Help sourcing co-investors for Series A, introductions to distribution partners, technical advisors Fund Performance and Indicators Fund I Deployment : $20M fund, investing $500K average checks, implies 40+ investment targets; currently executing against plan Portfolio Quality Indicators : Companies across all three core sectors represented Recent activity confirms continued deployment (2025 investments ongoing) Mix of hardware (Uvionix), space (Charter, GoCosmic), software (Trickest), and deep tech Exit validation: Conectoo (founder's exit), 7card (team exit) Market Position : Active participant in Eastern European tech ecosystem, visibility through How to Web, Romanian Space Initiative, Techstars networks Competitive Positioning Underline Ventures differentiates through: Focused Thesis : Clear sector concentration (Space, Defense, Industrial) vs generalist Eastern European VCs Founder-Aligned Structure : Solo-GP with operating partners means consistent decision-making and long-term commitment Deep Team Expertise : Operating partners with UiPath, Algolia, and founder experience add credibility Network Scale : How to Web conference (Europe's top 10) and ROSPIN membership provide ecosystem visibility Stage Sweet Spot : Perfectly positioned for seed-stage Eastern European deep tech Investment Outlook Current Status : Fund I actively deploying, concentrated portfolio approach Future Plans : Focus on follow-on rounds for strong performers, continued sourcing in core sectors Emerging Focus : Increased interest in AI/ML applications within industrial tech, space tech, and defense sectors Market Tailwinds : European tech policy focus on strategic autonomy, increased space economy opportunities, deeptech valuations stabilizing

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