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3Blocks
// Software Development

Custom software. Direct from the developers.

We build web apps, smart contracts, and cloud infrastructure for teams that want zero friction. No agency overhead, no game of telephone – you work 1:1 with the senior developers who own your product.

Cyfrin AuditedGerman Regulated100% In-House
02 —

Most software projects don't fail because of tech.

The typical problem
  • 01You hire an agency and end up talking to a project manager instead of the developers.
  • 02Information gets filtered, interpreted, and distorted along the way.
  • 03Your vision gets lost in a game of telephone between freelancers, middlemen, and external teams.
  • 04The result: expensive rework, slow turnarounds, and missed deadlines.
3Blocks
  • Direct access: You plan and work directly with the lead developers.
  • Full transparency: No middlemen, no information loss, no empty promises.
  • High momentum: Short sprints, fast feedback, and clean execution.
  • Real ownership: We don't just write code, we take responsibility for the outcome.
Sound familiar? Let's talk.Free intro call →
03

What we build

We translate complex technologies into products that run stably, are easy to use, and scale with your business.

01

Smart Contract Development

Building a decentralized product means code that runs without servers, without an operator who can shut it down, without a middleman. We develop smart contracts that deliver exactly that: reliable, audited, production-ready.

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02

DeFi Integration

Lending, swapping, automated yield strategies: DeFi protocols are powerful but inaccessible to most users. We integrate them fully into your product. Users experience the result. The complexity stays invisible.

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03

Account Abstraction & Wallet Infrastructure

Seed phrases and MetaMask lose most users before they even try your product. We build wallet infrastructure that feels like a normal app. Google login, no fees, no friction.

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04

Tokenization & Tokenomics

A token is quick to deploy. A token that works, attracts users, and holds value long-term is a different challenge. We design the economic model and implement it technically.

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05

NFT Collection & Marketplace

NFTs work for more than digital art: memberships, tickets, certificates, access rights. We develop the collection and build the marketplace to match, independent of third-party platforms like OpenSea.

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06

Smart Contract Security

A smart contract can't be changed after deployment. A bug in the code stays. We prepare projects for external audits, guide the process, and help find issues before they become costly.

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07

Blockchain Data & Analytics

Every blockchain transaction is public. Those who can read and understand this data make better decisions and build better products. We index, analyze, and use on-chain data as the foundation for automated strategies.

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08

Web3 Company Formation in Germany

Starting a Web3 company in Germany is possible. But MiCAR, BaFin, legal structure, and licensing overwhelm most founders. We've been through this ourselves, know the pitfalls, and guide you through the process.

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09

Classic Software Development

Not every project needs a blockchain. But every project needs clean code, clear architecture, and a team that delivers. We develop classic software from the first idea to launch.

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04

Pecunity: DeFi investing without barriers

DeFi investing that feels like modern online banking. For Pecunity, we translated complex on-chain strategies into a seamless user experience – acting as the core technical partner from smart contracts to the interface.

  • Seedless onboarding via Account Abstraction (Google Login)
  • Gasless experience: Fees are handled invisibly in the background
  • Automated yield strategies on BNB, Base, and Arbitrum
  • Deflationary token model with integrated ecosystem burn
  • Full-stack engineering: Smart contracts, indexers, and UI from a single source
Security
Cyfrin Audited
Compliance
MiCAR Ready
Network
Multichain Live
Pecunity Dashboard Interface
06

How we work

1

Understand the Idea

Tell us what you're planning. No pitch deck needed – an honest conversation is enough.

2

Architecture & Planning

We define the right stack, the system architecture, and a realistic roadmap.

3

Building

Short sprints, direct communication, and regular feedback – so you always know where your product stands.

4

Launch

Focus on momentum. We launch your product in fast iterations so you can gather real market feedback, instead of burning budget in endless theory cycles.

07

The people behind 3Blocks

Florian Meiswinkel

CEO & Co-Founder

Builds Web3 systems that perform at audit level. Combines deep smart contract knowledge with strategic architecture to turn ideas into resilient products.

Lars Berge

COO & Co-Founder

Brings software engineering and cybersecurity together. He ensures that complex technologies translate into reliable, secure, and viable operations.

Dario Leunig

CTO & Co-Founder

Builds frontends users actually love. Translates complex blockchain logic into scalable, intuitive web experiences and drives a seamless go-to-market strategy.

Mario Burić

CFO

Economist and strategist. Brings over 25 years of experience in finance and capital markets to provide our tech solutions with a solid economic foundation.

05

Our Tech Stack

An uncompromising stack: Type-safe architecture from the database down to the smart contract.

Frontend
  • Next.js
  • React
  • TypeScript
  • Tailwind CSS
Backend
  • NestJS
  • Prisma
  • PostgreSQL
  • GraphQL
Smart Contracts
  • Solidity
  • Foundry
  • Hardhat
  • OpenZeppelin
Web3
  • Viem / Wagmi
  • Alchemy
  • WalletConnect
  • Uniswap / Aave SDKs
08 —Investment

Invest in 3Blocks

Tokenized company shares. Regulated in Germany and transparently structured.

  • Real equity in 3Blocks UG via Security Tokens (3BLK)
  • Regulated and transparent via tokenize.it
  • German structure, audited financials, and clear participation

Security Token

3BLK

3Blocks UG (haftungsbeschränkt)

via tokenize.it · Germany

08

Frequently Asked Questions

Still have questions?Book a Call
09 —

Let's talk

30 minutes, directly with the developers. Free, no obligation, and zero sales theater. We’ll look at your project together and see how we can execute it cleanly.

30 MinutesRemote / VideoFree

No pitch deck needed. An honest conversation is enough.

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