13books Capital

13books Capital Investment Research Investment Thesis 13books Capital (formerly Element Ventures, rebranded November 2023) is a European specialist fintech investor focused on backing bold founders transforming the financial technology landscape. Their core thesis centers on partnering with Europe's best fintech founders with ambitions to scale globally. They explicitly state that "meaningful change takes time" and are committed to building lasting relationships with founders rather than making transactional investments. The firm believes deeply in "commitment beyond capital," offering not just investment but extensive platform support through industry networks, world-class founder advisors, and vetted service providers across Europe. 13books' investment philosophy emphasizes practical decision-making ability and commercial validation over round labels or stage obsession. They recognize that fintech founders face uniquely complex regulatory and operational challenges, and they seek partners who have demonstrated the judgment and resilience to navigate these hurdles successfully. Stage Focus 13books primarily invests at late Seed and Series A stages, with occasional participation in later rounds (Series B and beyond) for proven portfolio companies. This represents their core focus, though they demonstrate flexibility for strong commercial validation signals. They focus on early signs of commercial traction rather than stage labels, indicating a founder-centric rather than round-centric approach. Check Size Based on portfolio analysis, 13books deploys significant capital per company. They typically lead Series A rounds with a stated preference for leading rather than following. Estimated check sizes appear to range from €500K to €2.5M based on visible portfolio patterns, with the majority of Series A investments suggesting lead checks in the €1M-€2M range. Their platform support and typical board seat involvement aligns with active, lead investor check sizes. Lead Tendency 13books demonstrates a clear preference for leading rounds. Their public statements confirm "We like to lead although we're not precious about it," indicating confidence and engagement while maintaining flexibility. Of their visible 28+ portfolio companies, the vast majority are marked with "Lead" designation, including Blockbrain, Bitstack, Reveni, LO:TECH, Najar, Ramify, Aria, hepster, Coincover, Billhop, Banxware, Minna, Arbolus, Crezco, and Getmomo. This pattern suggests active board participation and governance involvement. Recent Activity 13books has been actively investing throughout 2025 and into 2026, demonstrating consistent deal flow and platform deployment. Recent investments include: Blockbrain (Series A, Q4 2025) - Agentic knowledge management Bitstack (Series A, October 2025) - Digital assets banking Reveni (Series A, Q4 2025) - Next-generation e-commerce LO:TECH (Seed, September 2025) - Infrastructure for onchain capital markets Najar (Series A, August 2025) - AI-driven procurement solutions Ramify (Series A, June 2025) - Wealth management platform Metica (Seed, Recent) - Gaming acceleration platform Electric Car Scheme (Series A, Recent) - Net Zero vehicle leasing Januar (Seed, Recent) - Digital asset infrastructure for Europe Briink (Seed, July 2025) - Agentic ESG The firm shows consistent new investment cadence and demonstrates commitment to following strong portfolio companies into later rounds (Token in Series C, Minna in Series B, Runa in Series B). Portfolio 13books' portfolio spans 28+ companies across multiple fintech verticals, demonstrating deep specialization in financial technology: Payments & Banking : Bitstack (digital assets banking), Token (A2A payments), Aria (embedded B2B payments), Billhop (supplier payments), Getmomo (vertical payments for real estate), Crezco (cardless payment), Coincover (digital asset security) Lending & Credit : Banxware (business lending), Infact (real-time credit bureau), hepster (embedded insurance) Commerce & Platforms : Reveni (next-gen e-commerce), Ramify (wealth management), Minna (digital subscription management) Infrastructure & Data : LO:TECH (onchain capital markets), Januar (digital asset infrastructure), Runa (digital value infrastructure), Blockbrain (agentic knowledge management) Emerging Sectors : Najar (AI procurement), Briink (agentic ESG), Roadzen (auto insurance), Thirdfort (digital identity), Metica (gaming acceleration) Portfolio companies range from Seed to Series C, with concentration in Series A, indicating 13books plays the full growth curve in fintech. Team 13books' team comprises experienced fintech professionals and entrepreneurs: Christian Nentwich (Founder & CEO) - Self-taught programmer and entrepreneur, built fintech expertise through founding and advising Meera Bissoondeeal (General Partner) Steve Gibson (Partner) Elaine Goh (Partner) Nitya Gupta (Principal) Spencer Lake (Principal) Michael McFadgen (Advisor) Aleksandra Tyurina , Joanna Wlazlak , Brendan Woods , Max Bräuninger , Warda Diyar (Team Members) The firm emphasizes that the majority of their LPs are world-class fintech founders who actively mentor and support portfolio companies, creating a unique LP-as-advisors advantage. Geographic Focus 13books explicitly targets European fintech founders and operates from London (FCA regulated: Register number 924067). Their tagline—"backing Europe's best fintech founders with ambitions to scale globally"—indicates geographic focus on Europe with ambitions for global scale. Portfolio companies show strong UK and European concentration, with particular strength in German founders and UK-based operations. Their 300+ vetted service providers network spans across Europe. Platform & Differentiators 13books' primary differentiators: Fintech Specialization : Deep domain expertise in financial technology regulation, operations, and market dynamics World-Class Founder Network : Most LPs are successful fintech founders who provide direct mentorship and expertise Extensive Service Provider Network : 300+ vetted providers across Europe for scaling support Long-term Partnership Model : Emphasis on "commitment beyond capital" with stated principle of not panicking at market twists Data-Driven Decision Making : "Transient competitive advantage" through analytics and founder insights Platform Investment : Belief that platform connectivity, expertise, resources, and talent are as important as capital Recent Developments Rebrand : Recently transitioned from Element Ventures to 13books Capital (November 2023), signaling evolution and team expansion Active Hiring : Currently recruiting for Community Lead role, indicating team growth and expansion Consistent Deployment : Strong cadence of new investments and follow-on rounds demonstrates active fund deployment Decision Process Based on website and LP structure, 13books operates as a partnership model with multiple experienced GPs/Partners. Their emphasis on founder relationships and long-term thinking suggests thoughtful, relationship-driven decision making rather than purely algorithmic or rushed processes. Founder Profile 13books seeks founders with: Practical decision-making ability and business judgment Deep fintech regulatory and operational knowledge Ambition to scale globally from European base Vision and persistence to navigate complex fintech environments Ability to make hard practical choices with conviction