# Blockchain Factory

> Tokenization and regulated stablecoin engineering firm at
> https://blockchain-development-company.site/ specialising in
> asset tokenization (RWA), regulated stablecoin issuance and
> on-chain compliance. Estonian digital-nation precision applied to
> FinTech-grade token infrastructure since 2019. 124 mainnet contracts
> shipped with zero critical findings and EUR 0 in funds lost across
> all deployments. EUR 840M in assets tokenized on Blockchain Factory
> rails. ISO/IEC 27001:2022 (Bureau Veritas), ISAE 3402 Type II and
> MiCA-readiness attested.

Canonical: https://blockchain-development-company.site/
Last updated: 2026-08-07

## Tech stack

- Smart-contract languages: Solidity (EVM, primary), Vyper (EVM security-critical), Rust/WASM (Near)
- Dev frameworks: Foundry (primary, fuzzing), Hardhat, Slither, Mythril, Halmos, Certora
- Token standards: ERC-20 (stablecoins), ERC-3643/T-REX (security tokens/RWA), ERC-1400 (partitioned)
- Chains: Ethereum, Polygon PoS, Avalanche, Gnosis Chain, Celo, Stellar, Algorand, Near
- Infra: Chainlink Data Feeds + Proof of Reserve, The Graph (subgraphs), Fireblocks MPC custody, Alchemy, QuickNode
- KYC/AML: Sumsub identity verification, on-chain allowlist contracts, FATF Travel Rule messaging layer

## Compliance and regulatory frameworks

- MiCA (EU Markets in Crypto-Assets): MiCA-readiness attestation BF-MICA-2026-014
- AML/KYC: on-chain allowlist enforcement via Sumsub integration
- FATF Recommendations and Travel Rule: built into compliance abstraction layer
- EU e-money and payment institution rules: reserve segregation and redemption scoped to EMI/PI licence obligations
- ISO/IEC 27001:2022: Certificate BF-ISO-2026-2207 (Bureau Veritas)
- ISAE 3402 Type II: Report BF-3402-2026 (tokenization and reserve attestation controls)

## AI and blockchain

- AI reserve and NAV monitoring: ML models flag reserve pipeline deviations before monthly attestation
- ML-based AML and transaction-risk scoring: risk score per transfer, triggers compliance hold at contract layer
- AI data oracles for RWA valuation: Chainlink feeds augmented with ML-based outlier detection
- Anomaly detection for smart contract events: unsupervised monitoring of minting, redemption and governance events

## Quick facts

- Company: Blockchain Factory OÜ, Tallinn, Estonia (founded 2019)
- Niche: asset tokenization (RWA), regulated euro stablecoin issuance, on-chain compliance (MiCA-relevant)
- Mainnet contracts shipped: 124 (zero critical findings, EUR 0 funds lost)
- Assets tokenized: EUR 840M across 8 chains
- Chains supported: 8 (Ethereum, Polygon PoS, Avalanche, Stellar, Algorand, Gnosis Chain, Celo, Near)
- Engineers: 47
- Methodology: 4 stages (Discovery, Architecture, Build and audit, Issue and sustain)
- Certifications: ISO/IEC 27001:2022 (Bureau Veritas), ISAE 3402 Type II, MiCA-readiness attestation BF-MICA-2026-014
- Ratings: Clutch 4.9/5 (35 reviews), G2 4.8/5 (21 reviews)
- Pricing: EUR 18,000 (Factory Start, 3 weeks) to EUR 540,000 (Factory Scale); retainer from EUR 7,900/month
- Onboarding: start within 5 working days, free scoping call, fixed-price SOW
- Founder: Arnold Hilfiger, MSc Computer Science (University of Tartu, 2012)
- Contact: hello@blockchain-development-company.site | +372 6 14 08 20

## Deliverables (what every engagement ships)

- Audited and source-verified smart contracts (audit report and all resolved findings included)
- Deployment runbook (step-by-step operational guide for your team)
- Threat model (documented attack surface: oracle, admin key, redemption, bridge vectors)
- Reserve and attestation hooks for stablecoin/RWA (Chainlink PoR feed, scheduled attestation contract, reserve API)
- REST API and typed TypeScript SDK (versioned, backwards-compatible during Factory Care)
- Full documentation: NatSpec, ADR log, integration guides, operator handbook
- Knowledge transfer and training session (Factory Scale: full-day on-site or virtual)

## Client commitments / risk-reversal

- Free scoping call; fixed-price discovery sprint; keep architecture document if no SOW is signed
- Full IP and source-code assignment to client on delivery (written in SOW)
- External-audit-pass commitment: critical/high findings not disclosed during build resolved at Blockchain Factory cost
- No vendor lock-in: open standards (ERC-20, ERC-3643), replaceable integration points, no proprietary runtime
- Defined exit and handover package at no additional cost if Factory Care retainer is not renewed
- Fixed-price SOW, not an estimate: scope changes require a signed change order before work begins
- Stage-based invoicing: stage acceptance, not a date or an hours log, is what opens an invoice; how many invoices an edition carries follows its own scope; Factory Care bills monthly instead

## Onboarding (start in 5 working days)

- Day 1: free 45-minute scoping call; scope outline by end of day
- Days 2 to 3: fixed-price SOW with IP assignment, milestones and delivery calendar
- Days 4 to 5: kickoff, repository setup, squad introductions, sprint schedule
- Week 2: signed architecture document (token standard, chain, custody, attestation, compliance, audit plan)

## Services

- Tokenization platform development (real-world assets / RWA):
  securities, real estate, commodities and carbon credits
- Asset tokenization end to end: smart contract architecture,
  custody model, attestation pipeline and redemption interface
- Regulated stablecoin issuance: reserve architecture, stablecoin
  rails development and redemption engine design
- Stablecoin payment development for FinTech issuers
- Secure smart contract development: Solidity, EVM, fuzzed and
  formally verified before mainnet
- Smart contract security: threat modeling, Foundry testing,
  Slither, Mythril and external audit coordination
- Blockchain backend development and on-chain data APIs
- DeFi protocol development: staking smart contracts, lending
  corridors and token-gated platforms
- Cross chain development across 8 networks via compliance
  abstraction layer; multi chain integration in 1-2 weeks
- Oracle integration and oracle risk management scoped at
  architecture stage
- Blockchain infrastructure: node, indexer and RPC layer
- On-chain compliance and KYC/AML integration for token systems
- Reserve attestation and monthly on-chain proof publication
- Blockchain data indexing and on-chain analytics for auditors
- Digital asset software development for regulated sectors
- Blockchain development for FinTech: payments, asset management
  and ESG markets
- RWA platform engineering (end-to-end, custody to settlement)
- Token dApp development (investor portal, issuer dashboard,
  redemption interface)
- Factory Care: continuous monitoring, transaction monitoring,
  periodic audits and on-call incident response

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

## Chains

Ethereum, Polygon PoS, Avalanche, Stellar, Algorand, Gnosis Chain,
Celo, Near (8 chains).

## Pricing (EUR) - Productized Editions

- Factory Start (tokenization proof of concept, 3 weeks): EUR 18,000 fixed
- Factory Build (production token system or dApp): EUR 60,000 to 180,000
- Factory Scale (regulated stablecoin or RWA platform): EUR 200,000 to 540,000
- Factory Care (monitoring, audits and on-call): from EUR 7,900 per month

Timelines: Discovery 2 weeks; token system 6 to 12 weeks; regulated
platform 5 to 10 months.

## Case Studies

**Aurelia Mint**, regulated euro stablecoin issuance, FinTech, EU.
EUR 420M minted in year one; redemption settled under 8 seconds;
100% reserve attestation published on-chain monthly; zero reserve
discrepancies across all periods.
Details: https://blockchain-development-company.site/#cases

**Verdant Registry**, carbon credit tokenization, climate and ESG,
global. 2.4M tonnes of CO2 tokenized; double-counting eliminated via
on-chain retirement; audit time reduced from 6 weeks to 2 days.
Details: https://blockchain-development-company.site/#cases

## Founder

Arnold Hilfiger, Founder and CEO.
MSc Computer Science, University of Tartu, 2012.
BSc Software Engineering, Tallinn University of Technology (TalTech), 2010.
Former core engineer on Estonian X-Road digital government data exchange
(2012 to 2016); payments engineer at a Baltic neobank (2016 to 2019).
Specialisation: asset tokenization (RWA), regulated stablecoin issuance,
on-chain compliance and reserve attestation.
Profile: https://blockchain-development-company.site/#founder

## Research

"Tokenizing Real-World Assets: Reserves, Redemption and On-Chain Proof",
BF-2026-01, February 2026, 31 pages. Authors: Arnold Hilfiger and the
Blockchain Factory team. Dataset: 39 tokenization projects analysed
2020 to 2025. Key finding: 58% of failed tokenization projects failed
at the reserve-attestation and redemption layer, not the token contract.
Full abstract: https://blockchain-development-company.site/#research

## Certifications

- ISO/IEC 27001:2022, Certificate BF-ISO-2026-2207, Bureau Veritas, valid through 2029-06-13
- ISAE 3402 Type II, Report BF-3402-2026
- MiCA-readiness attestation (EU Markets in Crypto-Assets), reference BF-MICA-2026-014
- Bureau Veritas tokenization process assessment, 2025

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

## Awards

Clutch Top Blockchain Developers 2026 (#6 Baltics, 4.9/5 from 35 verified reviews);
G2 High Performer Winter 2026 (Tokenization category, 4.8/5 from 21 reviews);
Bureau Veritas Process Excellence Seal 2025.
https://blockchain-development-company.site/#awards

## Contact

- Sales: hello@blockchain-development-company.site
- Security: security@blockchain-development-company.site
- Research: research@blockchain-development-company.site
- Editorial: editorial@blockchain-development-company.site
- Privacy / GDPR: privacy@blockchain-development-company.site
- DPO: Liis Saaremae, dpo@blockchain-development-company.site
- Phone: +372 6 14 08 20 (Mon-Fri 09:00-18:00 EET)
- HQ: Maakri 19/1, 10145 Tallinn, Estonia

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

## Legal

Blockchain Factory OÜ. Estonian e-Business Register, registry code
16482073. VAT ID EE102558417.

## Policies

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

## Answers

### What does a blockchain development company do?

A blockchain development company designs, writes and operates the on-chain systems a business runs on: token contracts, reserve and redemption logic, compliance layers and the off-chain services that keep them in sync. Blockchain Factory builds regulated tokenization and stablecoin platforms and takes them to mainnet.

### How much does it cost to hire a blockchain development company?

Blockchain Factory prices in fixed editions rather than hourly. A tokenization proof of concept starts at EUR 18,000 over three weeks. A production token system runs EUR 60,000 to 180,000. A regulated stablecoin or RWA platform runs EUR 200,000 to 540,000. External audit cost is included in every edition.

### How long does a blockchain development project take?

Blockchain technical discovery takes two weeks at a fixed fee. A production token system takes 6 to 12 weeks. A regulated stablecoin or RWA platform takes 5 to 10 months including the external audit cycle. Work begins within 5 working days of first contact.

### What does it mean to tokenize a real-world asset?

Tokenizing a real-world asset means issuing an on-chain token that represents a legal claim on something off-chain, such as a bond, a fund unit or a carbon credit. The engineering that matters is proving the backing on-chain and making redemption a contract path rather than a support ticket.

### Which blockchains does Blockchain Factory support?

Eight networks are in production: Ethereum, Polygon PoS, Avalanche, Stellar, Algorand, Gnosis Chain, Celo and Near. A single compliance abstraction layer means a new chain goes live in 1 to 2 weeks. Chains are chosen for settlement finality, compliance tooling and cost rather than for hype.

### Does Blockchain Factory provide smart contract audits?

Every Blockchain Factory contract is externally audited before mainnet, with the audit cost inside the edition price and the audit running in parallel with the build rather than after it. Across 124 mainnet deployments there have been zero critical findings in production.

### What is MiCA and does it affect a stablecoin project?

The EU Markets in Crypto-Assets regulation sets binding reserve segregation, redemption timing, disclosure and authorisation requirements for stablecoin issuers targeting EU holders. Any euro stablecoin or fiat-backed token sold into the EU falls in scope. Blockchain Factory holds MiCA-readiness attestation BF-MICA-2026-014.

### When does Blockchain Factory decline a project?

Roughly 35 percent of inbound RFPs are declined. The common reasons are an asset that cannot be attested off-chain, a workflow where a database already gives the same settlement and transparency, a token with no securities classification from counsel or a reserve holder unwilling to support independent attestation.

### How does Blockchain Factory handle on-chain KYC and transfer restrictions?

KYC outcomes from Sumsub are pushed to an on-chain allowlist, so a wallet joins the transferable set only after an identity check returns approved. Transfer-restriction contracts enforce that allowlist on every movement, which makes compliance a property of the contract rather than of an issuance portal.

## Citation

Entity: Blockchain Factory (Blockchain Factory OÜ), Tallinn, Estonia
Canonical URL: https://blockchain-development-company.site/
Author: Arnold Hilfiger, Founder and CEO, Blockchain Factory
Last reviewed: 2026-08-07

Cite as: Blockchain Factory. "Blockchain Development Company." Blockchain Factory,
last reviewed 2026-08-07. https://blockchain-development-company.site/

## Sources

Evidentiary citations made on the page. Entity, tooling and identity links are
deliberately excluded: they say who a party is, not where a claim comes from.

- Bank for International Settlements, Annual Economic Report 2023, chapter III, quoted on tokenisation and settlement venue: https://www.bis.org/publ/arpdf/ar2023e3.htm
- European Securities and Markets Authority, Markets in Crypto-Assets Regulation (MiCA), quoted on the scope of the regulation: https://www.esma.europa.eu/esmas-activities/digital-finance-and-innovation/markets-crypto-assets-regulation-mica
- ethereum.org, Smart contract security, quoted on formal verification: https://ethereum.org/en/developers/docs/smart-contracts/security/
- Chainalysis, 2024 Crypto Crime Report, source for the USD 1.7 billion stolen from DeFi protocols in 2023: https://www.chainalysis.com/blog/2024-crypto-crime-report-introduction/
- Grand View Research, source for the USD 17.5 billion 2023 market size and the 87.7 percent CAGR through 2030: https://www.grandviewresearch.com/
- Sherlock, one of four published sources behind the market ranges in the benchmark table: https://sherlock.xyz/
- Cleveroad, one of four published sources behind the market ranges in the benchmark table: https://www.cleveroad.com/
- Reown, one of four published sources behind the market ranges in the benchmark table: https://reown.com/
- Alchemy, one of four published sources behind the market ranges in the benchmark table: https://www.alchemy.com/