Bloom / Giesen Family Office
Family officePre-Seed–Seed
Find your way into Bloom / Giesen Family Office
Investment thesis
Bloom backs early-stage ventures it views as having durable, generational potential rather than following market trends. It looks for a clear problem, a sharp and scalable solution, and disciplined founders capable of execution. Operating as a family-office-backed platform, Bloom unites four disciplines - legal structuring, tokenization, venture building, and asset management - to support the companies it funds. Beyond capital, it aims to give founders strategic market access by connecting them with investors and networks, helping them gain traction when scaling or entering new markets. The firm plans to allocate capital across categories such as deep tech, enterprise software, healthcare, consumer internet, IoT, space tech, cybersecurity, nanotech, and defense tech.
Source: firm website, verified Aug 7, 2026.
What they invest in
from 9 of 10 portfolio companiesCrypto & Web3 ×5SaaS ×3AI & Machine Learning ×2Developer Tools ×2Energy ×2Fintech ×2Marketing Tech ×2Cleantech ×1
HQs:Germany×4Switzerland×1European Union×1
Investments · 10 tracked
founders shown can be your intro path
21 Oaks Capital bridges traditional finance and blockchain/distributed ledger technology, offering institutional investors access to digital assets through regulated fund structures compliant with German BaFin regulations.
AI & Machine LearningCrypto & Web3FintechDüsseldorf, DE
Michael Geike(Managing Partner · DLT Specialist)inEdgar Heimbach(Managing Partner · Managing Director)in
Combinder operates a decentralized physical infrastructure network (DePIN) that lets households connect their distributed energy resources (DERs) such as smart devices and EV chargers to provide grid flexibility and data.
Climate TechCrypto & Web3Energy
Kai Siefert(Founder)in
Green Mining offers co-ownership of Bitcoin mining operations by selling shares in a Swiss stock corporation (GM Data Centers AG) with subsidiaries running hydro-powered mining sites in Paraguay, where miner waste heat is reused to dry fruit for a second revenue stream.
CleantechCrypto & Web3EnergyZug, CH
Sascha(Founder)
Tally is an online form and survey builder that lets users create unlimited forms with logic, calculations, integrations, and customization, offering a free tier plus paid Pro and Business plans.
Developer ToolsFuture of WorkMarketing TechSaaS
Marie Martens(Founder)in
Co-investors1991 VenturesAnchorless BangladeshAscensionDay One CapitalFlori VenturesFoundership Ventures+8 more
peaq provides a blockchain-based stack that lets robots and machines operate as autonomous economic actors, enabling them to be financed, transact, and function as investible assets.
Crypto & Web3IoTRobotics
Co-investorsAdvanced BlockchainBorderless VentureFOMO VenturesTruth VenturesGreenfield
Seed + speed is an early-stage venture capital firm that invests in startups building scalable B2B software and software-driven hardware, with initial tickets of €500K–€2.0M and follow-on funding up to €5.0M.
Enterprise SoftwareSaaSBerlin, DE
TokenForge builds blockchain-based financial infrastructure for tokenizing and managing real-world assets.
Crypto & Web3FintechSaaS
tracebloc provides deployable workspaces that let teams train, evaluate, and benchmark machine learning models on their own infrastructure (MacBook, Linux, Windows, or GPUs).
AI & Machine LearningData & InfrastructureDeveloper Tools
Co-investorsAdvanced Blockchain
Other
Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.
yugether Beteiligung
Frequently asked questions
- How many investments has Bloom / Giesen Family Office made?
- Bloom / Giesen Family Office has 10 tracked investments.
- What stage does Bloom / Giesen Family Office invest at?
- Bloom / Giesen Family Office invests at the Pre-Seed, Seed stages.
- What sectors does Bloom / Giesen Family Office focus on?
- Bloom / Giesen Family Office focuses on AI & Machine Learning, Consumer, Crypto & Web3, Cybersecurity, Deep Tech, Defense Tech, Energy, Enterprise Software, Healthtech, IoT, Space Tech.
- Who does Bloom / Giesen Family Office co-invest with?
- Bloom / Giesen Family Office most often shares deals with Advanced Blockchain, Ascension, Borderless Venture, among 18 tracked co-investors.
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