/Investor DB

Signature Ventures — Full Portfolio

27 tracked investments · listed companies and verified rows first

Atematem.earth

Atem operates the Carbon Cockpit, a free platform that scores and compares over 6,000 carbon credit projects on trust, value, and portfolio fit so companies can buy and retire credits without overpaying.

CleantechClimate TechSaaS

Christoph Lange

Co-investorsAtlas CapitalForesight VenturesGSR VenturesINCE CapitalMirana VenturesZonff Partners

autonolasolas.network𝕏

Olas is a decentralized platform for autonomous AI agents where users can own and operate agents through Pearl (an AI Agent App Store) and businesses can monetize agents on the Mech Marketplace.

AI & Machine LearningCrypto & Web3MarketplacesSector Agnostic

Co-investorsARKN venturesGenerative VenturesSMAPE Capital1kxSigil Fund

Bio Protocolbio.xyzin𝕏

Bio Protocol is a decentralized science (DeSci) platform where people can fund, develop and govern tokenized early-stage scientific research from universities, companies and researchers.

AI & Machine LearningBiotechCrypto & Web3

Co-investorsBinance LabsPfizer VenturesBig Brain HoldingsPolymorphic CapitalSerafundSMAPE Capital+3 more

Celestiacelestia.orgin𝕏

Celestia designs and delivers custom, high-throughput blockchain chains for enterprises, separating compute and storage so each scales independently.

Crypto & Web3Data & InfrastructureEnterprise Software

Mustafa Al-Bassam(Founder)inNick White(Co-founder & CEO, Celestia Labs)inPreston Evans(CTO, Celestia Labs)Sarah Armstrong(CFO)inZach Leibowitz(General Counsel)inIsmail Khoffi(Founder)

Co-investorsAdvanced BlockchainAlphaLab CapitalBain Capital CryptoBlockchain CapitalCaladanCoinbase Ventures+23 more

Coboworxcoboworx.cominSeed · Sep 2021 · $5MDefunct

German robotics company that sold modular, process-ready robot cells (palletizing, machine loading) and a digital configurator so SMEs could automate without a system integrator.

Salmtal, DE

Georg Matheus(Co-Founder)Klaus Ignaz Wagner(Co-Founder)Olaf Gehrels(Co-Founder & CEO)inRalf Zeisberger(Co-Founder and Co-CEO / CFO)in

Co-investorsPICUS CAPITALSquareOneTeam Global

Credit Coopcreditcoop.xyzAug 2025 · $4.5M

Onchain structured finance protocol that turns business cash flows into programmable collateral for secured lines of credit.

Thomas Hepner(Founder)in

Co-investorsCoinbase VenturesdlabFactionMaven 11TRGCLightspeed Venture Partners+1 more

Finoafinoa.ioin𝕏

Finoa provides custody and financial services for digital assets and cryptocurrencies aimed at institutional clients, addressing their regulatory and security needs.

Crypto & Web3Data & InfrastructureEnterprise SoftwareFintech

Christopher May(Founder)Henrik Gebbing(Founder)

Co-investorsBalderton CapitalBlockrocketcoparionMaven 11Venture Stars

Flexcavoflexcavo.deSeed · Sep 2021 · $6M

Flexcavo provides a construction equipment telematics and fleet management platform that gives contractors real-time visibility into machines, tools, and crews across jobsites.

Construction TechIoTSaaS

Co-investorsFJ LabsLoric VenturesRedstone

Gatacagataca.ioin

Gataca Studio is a platform that enables organizations to build verification and credential flows for digital identity wallets, allowing them to verify users instantly and issue credentials while maintaining compliance with regulations like eIDAS 2.0.

CybersecurityData & InfrastructureEnterprise SoftwareFintechGovTechSaaSSector Agnostic

Irene Hernández(CEO)in

MedKitDocmedkitdoc.deinPre-Seed · Apr 2021 · $2Macquired by GoMedicus Group · Feb 2025

MedKitDoc (BDS Digital Health Solutions GmbH) is a German telemedicine platform that pairs a health app, Bluetooth medical devices (stethoscope, ECG, BP, etc.), and video consults so nursing homes and chronic-care settings can treat patients remotely.

Hann. Münden, DE

Benjamin Gutermann(Co-Founder & CMO)Dorian Koch(Co-Founder & CEO)inNicolai Nieder(Co-Founder & CCO)in

Co-investorsActon CapitalHealth WildcattersVorwerk VenturesPICUS CAPITAL

Molecule AImolecule.xyz𝕏

Molecule operates a blockchain-based platform supporting decentralized science (DeSci), funding research projects and connecting scientists and entrepreneurs.

AI & Machine LearningBiotechCrypto & Web3

Paul Kohlhaas(Founder)inNeeta Singal(Founder)Saurabh Singal(Founder)Saurabh Singal Neeta Singal(Founder)Tyler Golato(Founder)Vincent Weisser(Founder)in

Co-investorsAtria VenturesBackedBoxGroupCompoundFifty YearsGaingels+14 more

Neverminednevermined.ioin𝕏

Nevermined provides API monetization infrastructure that enables organizations to sell services to AI agents with automated metering, settlement, and payouts.

AI & Machine LearningCrypto & Web3Developer ToolsEnterprise SoftwareFintechSaaS

Co-investorsFactor CapitalGenerative VenturesMentha PartnersPolymorphic Capital

Notabenenotabene.idin𝕏Seed · Nov 2021 · $10.2M

Notabene provides compliance and regulatory technology for crypto businesses and financial institutions, helping them meet regulatory requirements like the FATF Crypto Travel Rule through real-time screening, sanctions checks, and wallet identification.

Crypto & Web3CybersecurityEnterprise SoftwareFintechNew York City, US

Pelle Braendgaard(CEO)inAndres Junge(Founder)inAnia Lipinska(Founder)inAlice Nawfal(Founder)inCalvin K(Head of People Operations)Sacha Lowenthal(Head of Marketing)

Co-investorsBlockchain CoinvestorsDigital Currency GroupF-Prime CapitalGaingelsNextBlockParaFi Capital+17 more

Otiootio.aiin𝕏

Otio is an AI research workspace that uses a dedicated OCR service to convert scanned and image-based PDFs into permanent, queryable sources that can be cross-referenced with other documents and interrogated with cited answers.

AI & Machine LearningEdTechFuture of WorkLegalTechSaaS

Yasaman Rajaee(Founder)in

Co-investorsFuel Ventures

Passbasepassbase.com𝕏Pre-Seed · Mar 2019 · $600KAcquired

Passbase offers an investor onboarding solution that automates data and document collection from institutional and individual clients, with beneficial owner mapping and compliance monitoring tools.

CybersecurityFintechSaaSNew York City, US

Mathias Klenk(Founder)inDavid McGibbon(Director)Dave McGibbon(Founder)Felix Gerlach(Founder)in

BoardTed Wang(Director)in

Co-investorsBLN CapitalCowboy VenturesSquad CapitalAlphabetCostanoa VenturesEniac Ventures+2 more

Ruyaruya.ventures

Ruya Ventures is a venture capital firm that invests in deep tech founders at the earliest stages, maintaining a highly concentrated portfolio.

Deep Tech

Co-investorsAspire11Multifaceted CapitalSella Direct Ventures

Swaapswaap.finance𝕏Apr 2023 · $4.5M

Swaap operates an automated market maker built to limit impermanent loss for DeFi liquidity providers.

Crypto & Web3FintechParis, FR

Cyrille Pastour(Founder)inDavid Bouba(Founder)in

Co-investorsEntrepreneur FirstKima VenturesC2 VenturesNew Form Capital

UnblockPayunblockpay.cominMar 2026 · $4.5M

Unblock provides banking and payments infrastructure for moving money globally, offering on/off-ramps, virtual accounts, and multi-chain stablecoin wallets.

Crypto & Web3Data & InfrastructureFintechSão Paulo, BR

Fabio Thiele(Founder)inLucca Freire(Founder)inPedro Henrique Braz Campo(Founder)in

Co-investorsAlliance DAO (ex DeFi Alliance)Crescera CapitalWintermutePRELUDEReverieTriaxis Capital

Valoryvalory.xyzin𝕏Oct 2022 · $4M

Valory builds Olas, an open-source stack and decentralized marketplace for autonomous AI agents, including a desktop "agent app store" that lets users own and run AI agents for use cases from social influencers to DeFAI.

AI & Machine LearningCrypto & Web3Deep Tech

David Minarsch(Co-founder & CEO)inDavid Galindo(Co-founder & CTO)inGemma(COO)

Co-investorsATKAKleiner PerkinsProof GroupSemantic VenturesTrue Ventures

VoiceLinevoiceline.aiinPre-Seed · Jul 2021

VoiceLine builds a voice- and AI-powered tool that captures field information and reduces manual admin work, aimed at replacing clunky systems and manual data entry for sales teams.

AI & Machine LearningEnterprise SoftwareSaaSSales TechFrankfurt, DE

Nicolas Höflinger(Co-founder & CEO)inSebastian Pinkas(Co-founder & CTO)inNicolas Kübler(Chief Product Officer)inNicolas Hoflinger(Founder)

Co-investorsCavalry VenturesNAPPeakSCALEHOUSE Capital ManagementVenture StarsAlstin Capital+1 more

Other

Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.

BacktraceRuleRule 30Stealth StartupUnblockUnchainedWave Function

Rows marked “SEC filing” are inferred from directors named on the company's SEC Form D — public regulatory data, not a portfolio list published by the firm.