Hello, I'm
Tillmann Gmelin
Entrepreneur · Advisor · Investor
Passionate entrepreneur based in Munich. I found and advise companies, invest in promising startups, and advocate for sustainable business practices.
About Me
Born in 1979 in Freiburg, I now live in Munich with my wife and children. With a background in aerospace engineering (TU Berlin) and business administration (HHL Leipzig), I combine technical engineering expertise with entrepreneurial thinking.
As the founder of Presight4 GmbH, the online brand Efeuria.de, and Ledgerpilot.io, and former co-founder of Build38 GmbH, I bring years of experience in management consulting and business leadership. I am driven by entrepreneurial passion paired with a strong sense of economic and socio-political responsibility.
Companies
Current and past entrepreneurial activities
T&G Investment
My holding company for managing business assets, equity stakes, and investments.
Presight4 GmbH
Advising companies on liquidity challenges. My approach combines technical engineering knowledge from aerospace with business administration and management consulting. Core sectors include aerospace, insurance, and facility management.
Visit websiteT&D Immobilien GmbH & Co. KG
Real estate investments focusing on apartments and multi-family homes in A and B cities such as Berlin, Nuremberg, and Ulm.
Build38 GmbH
Mobile app security solutions for banks and financial institutions. As co-founder, I helped develop innovative security technologies for mobile banking.
Visit websiteProducts & Brands
Own digital products and brands
Ledgerpilot
ledgerpilot.ioAutomated processing of securities transactions directly into the DATEV accounting batch. Stocks, ETFs, options & dividends – built for trading companies.
View productEfeuria
efeuria.dePremium e-commerce for high-quality garden products. From instant privacy hedges to sustainable greening solutions – all from one source.
View productKosho
kosho.appSmart finance app with intelligent budget pots, automatic bank import, and AI-powered transaction analysis. Full control over your finances.
View productGleo
gleo.appNative macOS app that turns thoughts into actions. AI automatically detects to-dos from your notes – with a review ritual for permanently up-to-date task lists.
Coming soonInvestments & Engagement
Through my holding company, I invest in promising startups. Since 2022, I have been an active member of the Munich Angel Network, supporting young entrepreneurs on their journey.
Additionally, I invest in residential real estate through T&D Immobilien GmbH & Co. KG.
Additionally, I invest in stocks and actively trade options through my holding company as part of my business assets.
My goal is to strengthen entrepreneurship within my network and support founders on their journey.
Contact
I look forward to hearing from you