Berlin · Pre-Seed–Series A · 1 people tracked
Find your way into Join Capital
384 people in our graph share verified history with the Join Capital team — schools, employers, funds. One of them is your warm intro.
Investment thesis
Join Capital invests at the early stage in deep tech companies aiming to create lasting strategic strongholds rather than chasing hype. Its focus areas span defence (surveillance, intelligence, digital twins, space security), space and aerospace (reusable spacecraft, satellites, propulsion), enterprise technology (quantum and advanced computing, AI-driven cybersecurity and workplace safety), and industrial applications (advanced materials, photonics, advanced manufacturing, autonomous systems and robotics). The firm emphasizes staying close to founders and backing companies that can lead, scale, and endure while tackling difficult, foundational problems, with an orientation toward strengthening Europe's technological and security position.
Source: firm website, verified Aug 3, 2026.
Team · 1 people
from curated
What they invest in
from 19 of 22 portfolio companiesHardware ×12Deep Tech ×11AI & Machine Learning ×8SaaS ×5Semiconductors ×5Enterprise Software ×4Defense Tech ×3Developer Tools ×3
HQs:Germany×7United States×2Switzerland×1Denmark×1Spain×1Finland×1
Investments · 22 tracked
founders shown can be your intro pathBy year:2025 · 52024 · 32023 · 22022 · 111 dated
Quadsat develops modular radio-frequency sensing and electronic warfare payloads (such as SpectraLoc) that integrate into UAV platforms for RF signal detection and emitter geolocation, along with spectrum operations software.
Deep TechDefense TechHardwareSpace TechOdense, DK
Co-investorsSeraphim SpaceIQ CapitalExport and Investment Fund
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2D Photonics develops graphene-integrated photonics technology for optical transceivers and interconnects used in data-intensive applications such as generative AI workloads.
Deep TechSemiconductors
Co-investorsBosch VenturesIndaco Venture PartnersRobert Bosch Venture CapitalSony Ventures CorporationCDP Venture Capital
36ZERO Vision works in industrial image processing and machine vision technologies such as embedded vision, hyperspectral imaging, and deep learning for automated industrial processes.
Advanced ManufacturingAI & Machine LearningHardware
Zeeshan Karamat(Founder)in
Co-investorsBayern KapitalTechFoundersVanagon
Calvin Risk develops AI solutions that enable trustworthy, aligned artificial intelligence for enterprises.
AI & Machine LearningEnterprise SoftwareFintechSaaSZurich, CH
Co-investorsb2ventureFounders FactoryKickstart InnovationSeed+Speed
Codacy provides tools that help engineering teams improve code quality and security.
AI & Machine LearningCybersecurityDeveloper ToolsSaaSLisbon, PT
Jaime Jorge(Co-founder & CEO)inJoão Caxaria(Co-founder)inKendrick Curtisin
Co-investors33NArmilar Venture PartnersBright Pixel CapitalFaberCaixa CapitalEQT Ventures
enclaive provides a multi-cloud platform for Confidential Computing, using hardware-based Trusted Execution Environments to keep applications, databases, and AI workloads encrypted in use so that only the customer holds the keys.
Cloud ComputingCybersecurityData & InfrastructureDeep Tech
Gajek
Co-investorsF-Technologies
Frenetic develops software for designing and optimizing magnetic components used in power electronics, using an AI-based modeling approach to replace traditional engineering methods.
AI & Machine LearningDeep TechHardwareSaaSMadrid, ES
Chema Molina, PhD(Founder)in
Co-investors42CAPKibo Ventures
German Bionic develops wearable exoskeletons and smart power suits that use AI to assist workers with heavy lifting, prevent posture injuries, and improve workplace safety.
AI & Machine LearningHardwareRoboticsBerlin, DE
Co-investorsAtlanticSamsung Catalyst FundStorm VenturesBayern KapitalBenhamou Global VenturesEuropean Investment Bank
Hyperpilot offers a platform of three AI engines that take a controls-engineering project from high-level requirements through executable test suites to production-grade control software.
AI & Machine LearningDeep TechDeveloper Tools
Alexey(Co-founder)inElie(Co-founder)
Co-investorsOctopus VenturesTiny Supercomputer Investment Company
IPRally provides an AI-powered platform for patent professionals to search, analyze, and manage patents with greater speed and accuracy.
AI & Machine LearningEnterprise SoftwareLegalTechSaaSHelsinki, FI
Sakari Arvela(Co-Founder and CPO)inJuho Kallio(Co-Founder and CRO)inJuuso Piskonen(Co-Founder and Chief Architect)inDennis van der Veeke(CEO)inAndreas Cehlinder(CCO)inAntti Tarvainen(CTO)in
Co-investorsEndeit CapitalIcebreakerSpintop Ventures
A space propulsion company developing non-toxic green propellant technology, including its HIP_11 hypergolic propellant combination.
CleantechDeep TechHardwareSpace TechLampoldshausen, DE
Lukas Werling(Co-founder)inFelix(Co-founder)
Co-investorsFaberFaber Capital SCR SAFinal Frontier (Space & Defence VC)First Momentum
Kreios Space develops satellite technology designed to operate in Very Low Earth Orbit (200km), enabling sustained operations for higher-resolution Earth observation, improved satellite communications, and more responsive missions.
Deep TechHardwareSpace Tech
Max A.(Founder)inAdrián Senar Tejedor(Founder)inJan Mataró Núñez(Founder)in
Co-investorsGrow Venture Partners
Optics11 develops fiber-optic sensing systems designed for harsh operating environments, providing ultra-sensitive, low-power monitoring of temperature, pressure, strain, and vibration.
Deep TechDefense TechHardwareAmsterdam, NL
Grzegorz(Technical leadership (Optics11))inHanneke(Chief People Officer)inDaniel(Leadership (underwater security))in
Co-investorsFORWARD.oneSET VenturesValue Creation Capital
PhotonPath develops integrated photonic solutions for optical systems using silicon photonics and proprietary platform technologies.
Advanced ManufacturingDeep TechHardwareSemiconductorsMilan, IT
Andrea Melloni(Full Professor, Integrated Photonics)Marco Sampietro(Full Professor, Electronics)
Co-investors360 CapitalLevante Capital
Semron develops 3D CapRAM, a semiconductor technology that performs computing inside 3D flash memory by stacking many layers on silicon, aimed at meeting the compute demands of AI workloads.
Deep TechHardwareSemiconductors
Co-investorsOTB VenturesSquareOneOnsight Ventures
Semron develops 3D CapRAM, a technology that performs computation inside 3D flash memory to address AI compute and memory demands.
Deep TechHardwareSemiconductors
Co-investorsOnsight VenturesOTB VenturesSquareOne
Thyra develops counter-drone (C-UAS) systems, including an interceptor drone and launch station used to detect and neutralize drone threats.
Defense TechHardwareRobotics
Valispace provides automated verification and continuous integration tools for hardware design, enabling engineers to constantly validate product designs against parametric requirements and industry standards throughout the development process.
AI & Machine LearningDeveloper ToolsEnterprise SoftwareHardwareSaaSKarlsruhe, DE
Co-investorsHCVC
Other
Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.
Generative EngineeringModelwiseUnnecessary
Portfolio news
latest coverage across their companiesKreios Space · techtimes.com · Aug 4, 2026
Codacy · startupintros.com · Jul 13, 2026
Thyra · altss.com · Jul 8, 2026
2D Photonics · finance.yahoo.com · Apr 16, 2026
ISPTech · spacenews.com · Mar 17, 2026
German Bionic · xpert.digital · Nov 20, 2025
Optics11 · optics11life.com · Sep 30, 2025
Frequently asked questions
- How many investments has Join Capital made?
- Join Capital has 22 tracked investments, including 6 dated in the last 24 months.
- What stage does Join Capital invest at?
- Join Capital invests at the Pre-Seed, Seed, Series A stages.
- What is Join Capital's typical check size?
- Join Capital typically writes checks of $1.1M – $5.5M.
- What sectors does Join Capital focus on?
- Join Capital focuses on Advanced Manufacturing, AI & Machine Learning, Cybersecurity, Deep Tech, Defense Tech, Enterprise Software, Hardware, New Materials, Quantum Computing, Robotics, Space Tech.
- Where is Join Capital located?
- Join Capital is headquartered in Berlin, DE.
- Does Join Capital lead rounds?
- Yes, Join Capital leads investment rounds.
- Who does Join Capital co-invest with?
- Join Capital most often shares deals with 360 Capital, Faber, First Momentum, among 8 tracked co-investors.
Media · Podcasts & interviews
featuring the teamSmau Berlino 2016 | Interview with Jan Borgstaedt, of Join Capital
smau · Jan Borgstaedt
Co-investors · 8
EQT Ventures is the venture capital arm within the EQT platform, backing early-stage European founders building what it calls Generation-Defining Companies.
360 Capital is a European venture capital firm active since 1997, investing in innovative technology startups across deep-tech, climate-tech and digital sectors.
CDP Venture Capital SGR is an Italian venture capital fund manager that invests in strategic sectors for Italy's economic growth through direct and indirect funds. It is Italy's leading VC fund manager and among the largest in Europe.
L Catterton Growth is the growth investing arm of L Catterton, a consumer-focused private equity group that has made over 300 investments in consumer brands since 1989. The firm manages roughly $40 billion and backs middle-market companies and emerging high-growth consumer businesses; this unit is listed with a London office.
Episode 1 is a UK venture firm that invests in Pre-Seed and Seed B2B software companies, aiming to help them reach a successful Series A.
Capnamic is an early-stage venture capital firm that backs entrepreneurs from pre-product through first revenues, providing capital along with network, experience and guidance to help teams become category leaders.
Motive Partners is an investment firm focused on financial technology, backing technology, data, and service providers across the financial services sector.
Target Partners is a venture capital firm that invests in entrepreneurs across various stages and geographies. The firm emphasizes operational support and industry connections alongside capital deployment.
Firms observed investing alongside Join Capital, from public investor directories. Shared companies are the overlap with Join Capital's recorded portfolio.
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