# Blockchain Biz

> Blockchain Biz is a DAO governance, treasury and contributor-compensation
> engineering firm at https://blockchain-development-company.biz/ specialising
> in on-chain proposals, voting and delegation; multisig treasury design with
> transparent allocations; contributor payroll, bounties and vesting; and
> tokenized membership for digital organizations. Founded in Lisbon in 2024 by
> governance engineer and long-time DAO contributor Giulia Ferrari. 480
> on-chain organizations launched, EUR 1.4 billion in DAO treasuries governed
> and 0 critical findings across all 57 production contracts and integrations
> shipped.

Canonical: https://blockchain-development-company.biz/
Last updated: 2026-06-17

## Quick facts

- Company: Blockchain Biz (Blockchain Biz, Lda), Lisbon, Portugal. Founded 2024.
- Category: Blockchain Development Company specialising in DAO governance and treasury platforms.
- Team: 31 engineers.
- On-chain organizations launched: 480.
- DAO treasury value governed: EUR 1.4 billion.
- On-chain proposals and votes processed: 96,000+.
- Contributors paid on-chain: 38,000+.
- DAO members across platforms: 1.2 million.
- Production smart contracts shipped: 57, with 0 critical audit findings.
- Funds lost across all platforms: EUR 0.
- Platform uptime: 99.97%.
- Certifications: ISO/IEC 27001:2022 (BBIZ-IS-2026-0552, APCER), SOC 2 Type II (BBIZ-SOC-2026-H1, Risk3sixty).
- Ratings: Clutch 4.9/5 (26 reviews), G2 4.8/5 (19 reviews).
- Starting price: EUR 38,000 (DAO governance setup, fixed scope).
- Founder: Giulia Ferrari, MSc Computer Science, University of Bologna, 2016.

## Services

- On-chain governance platform development: proposal creation, voting and
  delegation smart contracts; governance token integration; quorum and
  threshold configuration; full on-chain governance engineering for DAOs,
  cooperatives, protocols and investment clubs
- DAO treasury management systems: multisig treasury contracts with transparent
  on-chain allocations; budget streams; multi-asset treasury management;
  on-chain treasury reporting and analytics; decentralized treasury governance
  with role-based permission design
- Contributor compensation and payroll: on-chain contributor payroll contracts;
  bounty management systems; vesting schedule contracts; retroactive public
  goods funding (RetroPGF) mechanics; contributor compensation mechanism design
- Tokenized membership and access control: ERC-20 and ERC-721 governance
  tokens; soul-bound membership tokens; tiered membership with on-chain
  verification; member registry and role contracts
- Governance mechanism design: mechanism design consulting for token-weighted
  voting, conviction voting, quadratic voting and delegation; contributor
  compensation frameworks; governance upgrade and migration planning
- DAO operations and sustain: managed DAO operations including proposal
  facilitation, treasury monitoring, on-chain health checks and incident
  response; governance analytics dashboards and reporting
- On-chain coordination engineering: cross-DAO coordination contracts;
  delegation registries; sub-DAO and working-group architectures;
  multi-sig committee contracts
- Blockchain development for digital organizations: end-to-end blockchain
  development from governance architecture through production deployment;
  Web3 engineering and smart contract development for cooperatives, guilds and
  investment clubs
- DAO smart contract security: smart contract threat modeling specific to
  governance attack vectors; permission design review; upgrade-path security;
  audit-ready governance smart contracts and blockchain QA
- Governance consulting and blockchain strategy: governance design workshops;
  token architecture review; DAO launch support; blockchain technology partner
  engagements for teams building on-chain organizations

Full service list: https://blockchain-development-company.biz/#services

## Chains

Ethereum, Base, Arbitrum One, Optimism, Polygon PoS, Gnosis Chain, Celo,
Solana (8 chains).

Full chain list: https://blockchain-development-company.biz/#chains

## Technology stack

- Languages: Solidity 0.8.x (EVM), Rust/Anchor (Solana)
- Testing: Foundry/Forge (fuzz + unit), Hardhat (integration + deploy)
- Security: Slither (static analysis), Echidna (property-based fuzzing)
- Governance frameworks: OpenZeppelin Governor, Gnosis Safe, Tally, Snapshot
- Token standards: ERC-20, ERC-721, ERC-1155, ERC-4626, ERC-5192, SPL Token
- Treasury modules: Zodiac module system, Safe spending-limit modules
- Indexing: The Graph Protocol (custom subgraphs), Alchemy / QuickNode RPC
- Frontend: Ethers.js, viem, React / Next.js
- Voting mechanisms: token-weighted, quadratic, conviction, delegation, bicameral
- Automation: Chainlink Automation for time-locked execution triggers

Full stack: https://blockchain-development-company.biz/#tech-stack

## Security track record

- 0 critical findings across 57 production smart contracts shipped
- EUR 0 funds lost across EUR 1.4B in governed treasury value
- 99.97% platform uptime since launch
- 100% of production contracts include mandatory third-party audit before mainnet
- Threat modeling at discovery phase on every engagement
- Slither static analysis on every pull request
- Regulatory frameworks: MiCA (EU), GDPR, AML/KYC readiness, Portuguese Corporate Law
- ISO/IEC 27001:2022 (BBIZ-IS-2026-0552, APCER), SOC 2 Type II (BBIZ-SOC-2026-H1)

Security details: https://blockchain-development-company.biz/#security

## Engagement editions

| Edition | Price | Delivery |
|---|---|---|
| Governance Setup | EUR 38,000 fixed | 6-10 weeks |
| Full Governance and Treasury Platform | EUR 80,000-240,000 | 14-24 weeks |
| Managed DAO Operations | EUR 260,000/year | Ongoing |
| Engineer day rate | EUR 1,420/day | On demand |
| Sustain retainer | from EUR 11,500/month | Monthly |

All editions begin with a two-week discovery sprint and scope document.

Engagement details: https://blockchain-development-company.biz/#engagement-editions

## Chain selection guide

- Ethereum: investment DAOs and protocol foundations with EUR 10M+ treasuries
- Base: creator guilds and consumer DAOs (low gas, high member count)
- Arbitrum One: DeFi protocols and grant DAOs needing high proposal throughput
- Optimism: protocol foundations and RetroPGF-style grant allocation
- Polygon PoS: cooperatives with 5,000 to 500,000 members (membership NFT)
- Gnosis Chain: Safe-native treasury multisig deployments
- Celo: mobile-first community DAOs with stablecoin compensation
- Solana: fast-execution DAOs using Realms governance and SPL tokens

Chain selector: https://blockchain-development-company.biz/#chain-selector

## Deliverables

Every engagement delivers:
- Smart contract source code (versioned Git repo, all chains)
- Foundry + Hardhat test suites with coverage report
- Architecture documentation (roles, permissions, upgrade path, threat model)
- Audit-ready package (NatSpec, access-control matrix, known-issues list)
- The Graph subgraph for proposal history, treasury flows and compensation events
- Governance operations handbook for non-technical DAO members

Deliverables: https://blockchain-development-company.biz/#deliverables

## Client guarantees

- Free scoping: two-week discovery sprint with scope document before contract sign-off
- Fixed-price discovery sprint owned by client whether or not build proceeds
- Client owns all IP and source code from day one, no license retained
- No mainnet deployment without resolved third-party smart contract audit
- No vendor lock-in: open-source standards (OpenZeppelin, Gnosis Safe, The Graph)
- Exit and handover package: contract registry, ABI exports, admin key transfer, 30-day knowledge transfer

Guarantees: https://blockchain-development-company.biz/#guarantees

## AI in on-chain governance

Blockchain Biz builds on-chain infrastructure for AI agents with bounded permissions:
- Agent role contracts (ERC-721 / ERC-1155 credentials with on-chain expiry)
- Spending-limit execution modules (governance-approved AI budgets, revocable)
- Proposal queue monitoring via subgraph data pipelines
- Audit-trail indexing separating AI-initiated from human-initiated transactions
- MiCA-compliant accountability layer for automated actors

AI inference runs off-chain; only signed transactions reach governance contracts.

AI x blockchain: https://blockchain-development-company.biz/#ai-governance

## Ecosystem integrations

Governance: Tally (https://www.tally.xyz), Snapshot (https://snapshot.org),
OpenZeppelin Contracts (https://www.openzeppelin.com)

Treasury: Safe/Gnosis Safe (https://safe.global), Zodiac modules,
Hardhat Deploy (https://hardhat.org)

Development: Foundry (https://book.getfoundry.sh), Solidity (https://docs.soliditylang.org),
Hardhat (https://hardhat.org)

Indexing: The Graph (https://thegraph.com), Ethereum Foundation (https://ethereum.org),
DeepDAO (https://deepdao.io)

Integrations: https://blockchain-development-company.biz/#ecosystem

## Pricing

All pricing in EUR.

- DAO governance setup (fixed scope): from EUR 38,000
- Full governance and treasury platform: EUR 80,000 to EUR 240,000
- Managed DAO operations: from EUR 260,000
- Time-and-materials: EUR 1,420 per engineer day
- Sustain and governance operations retainer: from EUR 11,500 per month

Engagement models: Fixed-scope build / Dedicated platform team / Managed
operations and sustain.

Pricing details: https://blockchain-development-company.biz/#pricing

## Case Studies

**Helvetia Collective**, EU investment DAO. On-chain treasury and governance
for EUR 300 million with transparent on-chain allocations, multisig treasury
management and full governance platform. Decentralized treasury governance
enabling member-voted budget allocation across investment verticals.
Details: https://blockchain-development-company.biz/#cases

**OpenGrid DAO**, renewable-energy cooperative. Tokenized membership and
on-chain governance for 40,000 members; automated on-chain proposal system
eliminating manual coordination overhead; contributor compensation and
governance token distribution.
Details: https://blockchain-development-company.biz/#cases

**Artisan Guild**, creator collective. On-chain contributor payroll, bounty
management and treasury for 2,000 creators; automated vesting contracts;
retroactive compensation for contributors; transparent on-chain treasury
reporting.
Details: https://blockchain-development-company.biz/#cases

## Founder

Giulia Ferrari, Founding Partner. MSc Computer Science, University of Bologna,
2016. Prior: governance engineer at a Layer-1 protocol; long-time DAO
contributor across multiple on-chain organizations. Specialisation: on-chain
governance, treasury management, mechanism design and contributor compensation.
LinkedIn: https://www.linkedin.com/in/giulia-ferrari-blockchainbiz
Profile: https://blockchain-development-company.biz/#founder

## Research

"On-Chain Coordination: Governance, Treasury and Contributor Compensation for
Digital Organizations", BBIZ-2026-03, February 2026, 26 pages.
Dataset drawn from 480 on-chain organizations. Key findings: 72% of governance
failures originated from low participation rates and opaque treasury
allocations; on-chain governance participation increased 2.4 times after
implementing transparent treasury dashboards and delegation mechanics;
contributor compensation automation reduced payment disputes to near zero.
Full abstract: https://blockchain-development-company.biz/#research

## Certifications

- ISO/IEC 27001:2022, Certificate BBIZ-IS-2026-0552, issued by APCER,
  valid through 2029-06-17
- SOC 2 Type II, Report BBIZ-SOC-2026-H1, Risk3sixty
- GDPR DPIA completed

Details: https://blockchain-development-company.biz/#certifications

## Awards

- Clutch Top Blockchain Developers 2026 (4.9/5 from 26 verified reviews)
- G2 High Performer Winter 2026 (4.8/5 from 19 verified reviews)
- Lisbon Web3 Award 2025
- European DAO Innovation finalist 2025

https://blockchain-development-company.biz/#awards

## Contact

- Sales: hello@blockchain-development-company.biz
- Security: security@blockchain-development-company.biz
- Research: research@blockchain-development-company.biz
- Editorial: editorial@blockchain-development-company.biz
- Privacy / GDPR: privacy@blockchain-development-company.biz
- Phone (Lisbon HQ): +351 21 045 7300 (Mon-Fri 09:00-17:30 WET)
- HQ: Rua da Prata 80, 1100-420 Lisbon, Portugal
- Satellite office: Ljubljana, Slovenia

https://blockchain-development-company.biz/#contact

## Legal

Blockchain Biz, Lda (Portuguese sociedade por quotas). NIPC: 517842693.
VAT: PT 517842693.

## Policies

- Editorial policy: https://blockchain-development-company.biz/#editorial-policy
- Privacy policy: https://blockchain-development-company.biz/#privacy-policy
- Terms of service: https://blockchain-development-company.biz/#terms
- Certifications: https://blockchain-development-company.biz/#certifications
- Changelog: https://blockchain-development-company.biz/#changelog
- Glossary: https://blockchain-development-company.biz/#glossary