Luxembourg · Pre-Seed–Growth · 6 people tracked
Investment thesis
Sepulveda Capital invests in technology-driven enterprises with a focus on artificial intelligence and decision intelligence platforms serving enterprise and government clients. The investment approach is informed by the founder's extensive experience across 100+ financing transactions, including three exits valued over $1 billion, with particular emphasis on companies with transformative business models and international growth potential.
Source: firm website, verified Aug 3, 2026.
Team · 6 people
from the firm's website & curated & public directories
What they invest in
from 17 of 46 portfolio companiesSaaS ×5AI & Machine Learning ×4Enterprise Software ×4Marketplaces ×4Circular Economy ×3Climate Tech ×3E-commerce ×3EdTech ×3
HQs:Luxembourg×5Germany×3United States×3Finland×1Ireland×1
Investments · 46 tracked
founders shown can be your intro path
Co-investorsPalm Drive Capital
Co-investorsAlbionVCCrane Venture Partners
PartnerLily Wang· led
Catalyte develops apprenticeships and workforce training programs that certify technologists in high-demand fields like cybersecurity and software development.
AI & Machine LearningEdTechEnterprise SoftwareHR TechSaaSBaltimore, US
Co-investorsMuse CapitalCross Culture VenturesJam FundPalm Drive CapitalRise of the Rest SeedSuncoast Ventures
MiCA-licensed digital assets investment platform in Europe
Co-investorsConsenSys MeshTrue Global VenturesXAnge
German multinational online food ordering and delivery company (DHER.DE).
Berlin, DE
Nikita Fahrenholz(Founder)Niklas Östberg(Founder & CEO)in
Co-investorsAlpha Wave GlobalAsgard - human Capital for AICathay InnovationFJ LabsGerman Startups GroupHDS Capital+14 more
Dott operates a shared micromobility service, offering e-scooters and e-bikes for urban riders.
Mobility & Transportation
Co-investorsFELIX CAPITALKibo VenturesSoftBank Vision FundWhite Star Capital
Exobiosphere is building a standardized space-based high-throughput testing platform that lets pharma and biotech partners run automated experiments in orbit, using microgravity combined with lab automation and bioinformatics to create more physiologically relevant 3D biology models.
BiotechDeep TechSpace Tech
Kyle Acierno(Co-Founder & Chief Executive Officer)inBruno Santos(Co-Founder & Director of R&D)inOlivia Borgue(Co-Founder & Director of Engineering)in
Co-investorsExpansion Ventures
Expon Capital is a Luxembourg-based venture capital firm founded in 2015 that invests in early-stage (pre-seed, seed, and Series A) startups with global ambitions, focusing on AI and deep tech founders.
Sector AgnosticLuxembourg, LU
Marketplace enabling individuals and businesses to buy, send and pick up any product within the same city.
Co-investorsBright Pixel CapitalCathay InnovationConvivialité VenturesDozen InvestmentsEntrée CapitalGR Capital+2 more
PartnerLily Wang· led
Hydrosat converts satellite and ground data into actionable information for sustainable agriculture and water management.
AgTechAI & Machine LearningClimate TechData & InfrastructureSpace TechWashington, US
Pieter Fossel(CEO)Scott Alan Soenen(Executive Officer)Alan Royce Dalby(Executive Officer, Director)Yun Jin Kim(Executive Officer)
BoardAndrew Robert Dearing(Director)inAdam Niewinski(Director)in
Co-investorsBlue Bear Capital PartnersFREEFLOWHemisphere Ventures LLCIndustrious VenturesOTB VenturesTechstars+2 more
A company developing in vitro testing methods to assess respiratory sensitization for regulatory compliance in chemical and pharmaceutical industries.
BiotechDeep TechHealthtechMedical Devices
Next Gate Tech provides an AI infrastructure platform for investment operations, offering harmonised data, deterministic and auditable workflows, and embedded domain knowledge for tasks such as NAV oversight and fee methodology.
AI & Machine LearningFintechSaaS
Co-investorsSeeder FundVolta Ventures
OpenExO is a community platform with 40,000+ members offering certification programs, training, and coaching in exponential transformation for organizations and professionals.
EdTechEnterprise SoftwareFuture of WorkSaaS
Salim Ismail(Co-Founder & Chairman)Kent Langley(Co-Founder, President, COO & Chief Science Officer)
Passbolt is an open-source, self-hosted credential manager built with client-side encryption designed for security teams managing high-risk accounts and privileged access.
CybersecurityDeveloper ToolsEnterprise SoftwareLuxembourg, LU
Co-investorsAirbridge Equity PartnersScaleFund
Creates products enabling cloud and enterprise data centers to access data up to 50x faster with lower computational load and power consumption.
Co-investorsBrilliance VenturesKoch Disruptive TechnologiesNaissState of Mind Ventures
Refurbed operates an online marketplace for refurbished consumer electronics such as phones and other devices, reconditioned through a multi-step process and sold with warranty and trial periods.
Circular EconomyE-commerceMarketplaces
Kilian Kaminski(Founder)inPeter Windischhofer(Founder)in
Co-investorsTarget GlobalC4 VenturesSpeedinvest
Refurbed operates an online marketplace for professionally refurbished electronics such as phones and other devices, sold with warranty and return options.
Circular EconomyE-commerceMarketplaces
Peter Windischhofer(Founder)inKilian Kaminski(Founder)in
Co-investorsAcurio VenturesDIP CapitalIsomer CapitalC4 VenturesSpeedinvest
Refurbed operates a marketplace for refurbished electronics, where devices are reconditioned through a multi-step process and sold to consumers as more environmentally sustainable alternatives to new products.
Circular EconomyE-commerceMarketplaces
Co-investorsC4 VenturesEvli Growth PartnersSevenVenturesAlmaz Capital
Salonkee provides salon management software for hair and beauty professionals plus a consumer salon booking platform.
Co-investorsNewionPeakSpan Capital PartnersVerve VenturesFortino Capital
Spire operates a constellation of nanosatellites that collect granular Earth and environmental data from orbit, providing analytics for climate, logistics, and community protection.
Climate TechData & InfrastructureLogistics & Supply ChainSpace TechVienna, Virginia, US
Peter Platzer(Founder)inJeroen Cappaert(Founder)inJoel Spark(Founder)
Co-investorsBessemer Venture PartnersEvolution VC PartnersFresco CapitalGPO FundGrishin RoboticsKluz Ventures+6 more
Co-investorsElaiaIsaiISAI Gestion
Sympower operates a platform providing demand response and energy flexibility services that help balance national electricity grids across European markets.
AI & Machine LearningCleantechClimate TechEnergyEnterprise Software
Simon Bushell(Founder)in
Co-investorsACTIVATE CAPITAL PARTNERSKickstart InnovationACTivate CapitalRubio Impact Ventures
A company that builds interactive video experience (iVX) solutions designed to engage audiences and deliver measurable results for brands and agencies.
AdTechHealthtechMarketing TechMedia & EntertainmentSaaSTurku, FI
Co-investorsSuperhero CapitalVolta Ventures
PartnerLily Wang· led
Co-investorsHive Colab
Exits · 1
IPOs and acquisitions across the tracked portfolioSpire GlobalNYSE: SPIR
Portfolio news
latest coverage across their companiesExobiosphere · eu-startups.com · Aug 11, 2026
Delivery Hero · thestar.com.my · Aug 4, 2026
Hydrosat · norfolkdailynews.com · Jul 15, 2026
Spire · ca.investing.com · Jun 30, 2026
Refurbed · siliconrepublic.com · Oct 23, 2025
Refurbed · siliconrepublic.com · Oct 23, 2025
Sympower · energy-storage.news · Sep 17, 2025
Kidola · thesaasnews.com · May 23, 2025
Frequently asked questions
- How many investments has Expon Capital made?
- Expon Capital has 42 tracked investments, including 1 dated in the last 24 months.
- What stage does Expon Capital invest at?
- Expon Capital invests at the Pre-Seed, Seed, Series A, Series B, Series C, Growth stages.
- What is Expon Capital's typical check size?
- Expon Capital typically writes checks of $550K – $1.6M.
- What sectors does Expon Capital focus on?
- Expon Capital focuses on AI & Machine Learning, Biotech, Crypto & Web3, Cybersecurity, Deep Tech, Enterprise Software, Fintech, Healthtech, Quantum Computing, SaaS, Sector Agnostic, Space Tech.
- Where is Expon Capital located?
- Expon Capital is headquartered in Luxembourg, LU.
- Does Expon Capital lead rounds?
- Yes, Expon Capital leads investment rounds.
- Who does Expon Capital co-invest with?
- Expon Capital most often shares deals with Cathay Innovation, Bessemer Venture Partners, FJ Labs, among 68 tracked co-investors.
Media · Podcasts & interviews
featuring the teamE-conference Expon: Jerome Wittamer (Expon Capital) and Nick Tabone (Deloitte) - YouTube
360Crossmedia · Jerome Wittamer
[EXTRAIT] #173 - Jérôme Wittamer (Expon Capital) - Retour d’expérience sur le "Digital Tech...
Solenne Niedercorn · Jérôme Wittamer
LuxembourgMonAmour - Interview with Jerome Wittamer (Expon Capital) - YouTube
360Crossmedia · Jerome Wittamer
Successful startups' most secret sauce. Jérôme Wittamer / Expon Capital and Kevin Muller / Passbolt
TechChill · Jérôme Wittamer
The Luxembourg PE/VC stories with Jérôme Wittamer, Expon Capital
LPEA Luxembourg · Jérôme Wittamer
LPEA Insights 2018: Jerome Wittamer, Expon Capital - YouTube
LPEA Luxembourg · Jerome Wittamer
Images
Co-investors · 32
Techstars is a startup accelerator and early-stage investor that funds ambitious founders and provides capital, mentorship, and access to a global network of investors, operators, and corporate partners.
Cultivation Capital is a venture capital firm that invests in early-stage companies with the potential to transform how people live and work, backing them from Series Seed through Series B.
ISAI is a French investment firm founded and backed by tech entrepreneurs, offering multiple strategies including early-stage VC, corporate VC, growth & buyout, and growth lending.
AlbionVC is an early-stage venture capital firm backing European founders, providing both capital and operational expertise across deeptech, health, finance, and intelligence sectors.
The GPO Fund is an investment partnership that invests in founder-led, technology-enabled companies positioned to benefit from access to global capital markets.
Blue Bear is a venture capital and early growth equity firm investing in AI-powered digital technology companies addressing energy, infrastructure, and climate challenges.
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Industrious Ventures invests in early-stage companies transforming industry value chains and operations. The firm focuses on founder-led teams across transformation-oriented sectors.
True Ventures is a venture capital firm established in 2005 that focuses on early-stage technology companies, with operations based in Silicon Valley.
SOSV is a deep tech venture capital firm that makes first-check pre-seed investments and follow-on rounds in startups focused on human and planetary health, providing lab space and hands-on support at its US locations.
Partech is a global investment firm that backs founders across multiple continents and at every stage through dedicated teams and funds.
RRE Ventures is a boutique early-stage venture capital firm that backs founders across sectors, combining decades of experience with AI-driven analysis throughout the investment lifecycle.
Stellar Capital invests in founders building software, internet, and technology companies.
▶20 more co-investors
Cota CapitalBowery CapitalRevolutionDN CapitalQueensBridge Venture PartnersEQT VenturesSocial StartsViola VenturesLocalGlobeMotier VenturesScrum VenturesAmasiaPhoenix CourtRadical Ventures20VCPrimetime PartnersSixThirty VenturesIlluminate FinancialProsus VenturesAccelerated Digital Ventures
Firms observed investing alongside Expon Capital, from public investor directories. Shared companies are the overlap with Expon Capital's recorded portfolio.
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