Day One Capital
Venture capitalBudapest · Pre-Seed–Series A
Find your way into Day One Capital
Investment thesis
Day One Capital backs Central and Eastern European founders at the earliest stages, leading and co-leading Pre-Seed and Seed rounds. It focuses on teams rebuilding legacy, manual industries with an AI-first approach; hardware-driven companies building robots, drones, and autonomous systems; core digital infrastructure spanning cybersecurity, identity, data infrastructure, observability, and foundational software; resilience and defense technologies protecting governments and critical systems against cyber, physical, and geopolitical threats; and B2B and prosumer creator tools for studios, agencies, and creators. The firm emphasizes close, peer-level 'sparring partnerships' with founders and has backed original early-stage CEE founders since 2012.
Source: firm website, verified Aug 27, 2026.
What they invest in
from 10 of 11 portfolio companiesSaaS ×7AI & Machine Learning ×4Enterprise Software ×4Deep Tech ×2Hardware ×2Marketing Tech ×2Robotics ×2Advanced Manufacturing ×1
HQs:Czechia×1European Union×1United Kingdom×1Croatia×1Hungary×1Romania×1
Investments · 11 tracked
founders shown can be your intro pathBy year:2024 · 12022 · 12 dated
Material Exchange runs a sourcing platform for the fashion industry that connects brands and suppliers to source fabrics and materials for apparel and footwear collections.
Advanced ManufacturingAI & Machine LearningB2B MarketplacesRetail TechSaaSRönninge, SE
Darren Glenister(Chief Executive Officer)inDora Lality(Chief Legal Officer)inRobert Conway(Chief Product & Technology Officer)inGareth Bartman(Chief Financial Officer)inDejan Zvekic(Chief of Digitization)in
Co-investorsMolten VenturesNorrsken VCInventureNCT Ventures
Allonic is a robotics company founded by roboticists and engineers building tools to design and develop robots.
Deep TechHardwareRobotics
David Hollo(Founder)in
Co-investorsKAYAVisionaries Club
Colossyan is an AI video platform that converts expert knowledge into personalized training and enablement videos without editing or production expertise.
AI & Machine LearningEdTechEnterprise SoftwareHR TechSaaSLondon, GB
Dominik Mate Kovacs(Founder)in
Co-investorsEmerge EducationHeartfelt CapitalHEARTFELT_Oktogon VenturesLakestarLAUNCHub Ventures
FlowX.AI provides a platform with over 220 production-ready AI agents and an agent builder to automate mission-critical value streams such as onboarding, lending, underwriting, claims, and invoice reconciliation for regulated industries.
AI & Machine LearningEnterprise SoftwareFintechBucharest, RO
Serban Chiricescu(Founder)in
Co-investorsDawn CapitalNAventuresDayone CapitalSeedBlink
Orqa manufactures the MRM2-10, an NDAA-compliant, EU-made dual-use drone platform built from carbon fibre that carries payloads up to 3.5 kg for tactical and commercial operators.
ConsumerDeep TechDefense TechHardwareRoboticsOsijek, HR
Srdjan KovacevicinIvan JelusicinVlatko Matijevicin
Co-investorsBooz Allen VenturesExpeditionsLightspeed Venture PartnersRadius Capital VenturesTaiwania Capital
Tally is an online form and survey builder that lets users create unlimited forms with logic, calculations, integrations, and customization, offering a free tier plus paid Pro and Business plans.
Developer ToolsFuture of WorkMarketing TechSaaS
Marie Martens(Founder)in
Co-investors1991 VenturesAnchorless BangladeshAscensionBloom / Giesen Family OfficeFlori VenturesFoundership Ventures+8 more
Veridion builds a continuously updated data graph of global companies, tracking what businesses exist, what they do, and how they change over time.
AI & Machine LearningData & InfrastructureEnterprise SoftwareSaaS
Mihai Vinaga(Founder)inFlorin Tufan(Founder)in
Co-investorsOTB VenturesUnderline VenturesLAUNCHub Ventures
Volteum is a fleet intelligence platform that connects to vehicles via OEM APIs to provide real-time data on health, charging, maintenance, and costs across all vehicle types.
CleantechLogistics & Supply ChainMobility & TransportationSaaSBudapest, HU
Co-investorsMovens CapitalOktogon VenturesTechstarsWakeUp Capital
Whalebone develops no-installation, network-level DNS security and identity protection products for telcos, internet service providers, enterprises, public institutions, and governments.
CybersecurityEnterprise SoftwareSaaSBrno, CZ
Robert Šefr(Founder)in
Other
Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.
Turbine
Portfolio news
latest coverage across their companiesAllonic · eu-startups.com · Sep 7, 2026
Orqa · tectonicdefense.com · May 5, 2026
HeyReach · trysignalbase.com · Mar 24, 2026
Veridion · redding.com · Feb 24, 2026
Frequently asked questions
- How many investments has Day One Capital made?
- Day One Capital has 11 tracked investments.
- What stage does Day One Capital invest at?
- Day One Capital invests at the Pre-Seed, Seed, Series A stages.
- What is Day One Capital's typical check size?
- Day One Capital typically writes checks of $330K – $2.2M.
- What sectors does Day One Capital focus on?
- Day One Capital focuses on AI & Machine Learning, Biotech, Consumer, Creator Economy, Cybersecurity, Data & Infrastructure, Defense Tech, Enterprise Software, Fintech, Hardware, Healthtech, Media & Entertainment, Medical Devices, Retail Tech, Robotics, SaaS.
- Where is Day One Capital located?
- Day One Capital is headquartered in Budapest, HU.
- Does Day One Capital lead rounds?
- Yes, Day One Capital leads investment rounds.
- Who does Day One Capital co-invest with?
- Day One Capital most often shares deals with Oktogon Ventures, Ascension, OTB Ventures, among 30 tracked co-investors.
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