RubyLight
Venture capitalSeed–Series A
Investment thesis
RubyLight positions itself as an entrepreneur-led investor that supplements funding with practical technological and product guidance drawn from decades building major consumer internet and mobile companies in Europe. It avoids bureaucracy, has no investment committees, and makes fast decisions. The firm invests internationally regardless of company location, funding only startups showing proven user growth, engagement, and virality even at small user counts. It focuses on areas it understands well: communication, content sharing, social media, and crowdsourcing, where it believes new ideas can drive explosive user growth. Its support centers on refining product development, product-led growth, and metrics.
Source: firm website, verified Aug 7, 2026.
What they invest in
from 13 of 18 portfolio companiesConsumer ×5Social ×4Marketplaces ×3Creator Economy ×2EdTech ×2AI & Machine Learning ×1Circular Economy ×1Cleantech ×1
HQs:Estonia×2United States×2Germany×1Netherlands×1Russia×1
Investments · 18 tracked
founders shown can be your intro path
Bolt operates a European mobility super-app offering ride-hailing, shared cars, e-scooters, and food and grocery delivery, along with on-demand parcel delivery.
Logistics & Supply ChainMarketplacesMobility & TransportationTallinn, EE
Co-investorsBADideas.fundKorelya CapitalSpecialist VCSpring CapitalEuropean Investment BankFidelity Investments+3 more
Code & State is an agentic venture studio that builds and operates companies run by AI agents across functions such as customer service, finance, marketing, sales, and legal, on a shared operating system of knowledge, tools, and skills.
AI & Machine LearningEnterprise Software
CuriousCat is a question-and-answer community where people ask questions publicly or anonymously and receive answers, following creators and exploring topics such as relationships, education, health, tech, and finance.
ConsumerCreator EconomySocial
A messaging application for smartphones and tablets that lets users chat with friends, send messages, and discover new people nearby based on location.
ConsumerSocial
Jodel is a hyperlocal community platform where users connect anonymously with people in their geographic area to share tips, news, and stories.
Marketing TechSocial
Alessio Avellan Borgmeyer(Founder)in
Co-investorsBLN CapitalFloodgateKima VenturesTomahawk.VC10x Foundersredalpine
Neural DSP creates guitar tone modeling plugins and hardware products, including digital reproductions of iconic musicians' signature sounds.
ConsumerCreator Economy
Co-investorsTrind Ventures
Co-investorsBlockchain Founders Fund
Co-investorsTrind Ventures
Odnoklassniki (OK.ru) is a social networking service where users connect with friends, share posts, and access media and entertainment content.
Media & EntertainmentSocial
Co-investorsTrind Ventures
Co-investors7percent Venturesa16z cryptoAndreessen HorowitzBHM GroupCollab+CurrencyKonvoy Ventures+6 more
StudySoup runs a peer-to-peer marketplace where students buy and sell class notes and study guides.
EdTech
Sieva Kozinsky(Cofounder)Jeff Silverman
Co-investors500 Global
Sweatcoin is a mobile health and fitness app that tracks users' steps and movement, converting physical activity into a virtual currency (sweatcoins) that can be redeemed for rewards such as gadgets, digital subscriptions, travel vouchers, and crypto.
ConsumerHealthtechWellness & Fitness
Egor Khmelev(Founder)inOleg Fomenko(Founder)in
Co-investorsRuna CapitalChapter OneElectric Capital
Tandem operates a mobile and web platform that connects language learners with native speakers for practice through text, audio, and video chat.
ConsumerEdTechBerlin, DE
Unknown (three friends)
Co-investorsBrighteye VenturesBynd Venture CapitalEnjoyventure ManagementFaberAccelGeneral Catalyst+2 more
A second-hand trading platform making reuse more fun and inspiring.
Co-investorsBring VenturesSkyfall VenturesVNV GlobalTrind Ventures
Yaga is an online marketplace for buying and selling secondhand clothing and goods, with buyer protection, bank/card payments, and delivery.
Circular EconomyE-commerceMarketplaces
Co-investorsSpecialist VC
StakeKings operates a staking marketplace where fans fund players in poker, daily fantasy sports, and other competitive events in exchange for a share of their winnings.
GamingMarketplacesSports Tech
Frank DeGeorgeNick DeGeorgeScott Hansbury
Co-investors500 GlobalRosecliff VenturesSocial Starts
Portfolio news
latest coverage across their companiesTandem · simplywall.st · Jul 18, 2026
Frequently asked questions
- How many investments has RubyLight made?
- RubyLight has 18 tracked investments.
- What stage does RubyLight invest at?
- RubyLight invests at the Seed, Series A stages.
- What sectors does RubyLight focus on?
- RubyLight focuses on Consumer, Crypto & Web3, Media & Entertainment, Social.
- Who does RubyLight co-invest with?
- RubyLight most often shares deals with 500 Global, Specialist VC, Spring Capital, among 34 tracked co-investors.
Similar investors
August Capital is a venture capital firm that invests in a small number of companies, providing hands-on support to entrepreneurs building their businesses.
Khosla Ventures is a venture capital firm that invests in early-stage companies focused on technology, mobile, and clean energy sectors, including biotechnology applications. The firm provides capital and strategic support to entrepreneurs developing breakthrough technologies across multiple markets.
LongLing Capital is a Chinese investment firm focused on internet traffic, users, products, and blockchain, having backed startups since 2008.
Smile Group is an internet firm operating across Asia that invests in, builds, and partners with founders pursuing ambitious, disruptive ideas.
Lalotte Ventures is an early-stage venture capital firm backed by the Garber-Boucher Family Office that invests in technology companies.