Designing business
with blockchain technology

From mainnet development, smart contracts, and dApps to exchanges and NFT marketplaces, our proven technology supports every stage of your blockchain project.

EthereumEVM
AvalancheEVM
Hyperledger BesuEVM
Hyperledger FabricPermissioned
PolygonEVM
BNB ChainEVM
OptimismL2
ArbitrumL2
BaseL2
KlaytnEVM
SolanaSVM
PolkadotSubstrate
TronTVM
Custom ChainEVM / Non-EVM
EthereumEVM
AvalancheEVM
Hyperledger BesuEVM
Hyperledger FabricPermissioned
PolygonEVM
BNB ChainEVM
OptimismL2
ArbitrumL2
BaseL2
KlaytnEVM
SolanaSVM
PolkadotSubstrate
TronTVM
Custom ChainEVM / Non-EVM
Custom Mainnet

Custom Mainnet Services

We build blockchain networks optimized for enterprise environments. Choose a private, consortium, or public network to match your requirements.

Hyperledger Besu

Hyperledger Besu

A permissioned blockchain suited to enterprise environments, with freely configurable private networks and consensus algorithms.

  • Private / Consortium Networks
  • IBFT 2.0 / QBFT Consensus
  • Enterprise Permission Management
  • Full EVM Compatibility
Ethereum

Ethereum

The most proven public blockchain ecosystem, enabling business models such as DeFi and NFTs.

  • ERC-20 / ERC-721 / ERC-1155
  • Smart Contract Development & Deployment
  • Layer 2 Solution Integration
  • DeFi Protocol Development
Avalanche

Avalanche

A high-performance, low-cost blockchain network for building independent subnet-based ecosystems.

  • Custom Subnet Development
  • 4,500+ TPS Throughput
  • Sub-Second Transaction Finality
  • Cross-Chain Bridge Integration
Hyper Chain

Hyper Chain

A high-performance mainnet based on the Helix-Pyramid multi-chain structure, for scalable blockchains that connect independent networks.

  • Sub-Second Block Production
  • 30,000+ TPS Throughput
  • 1-4-3 Multi-Chain Architecture
  • Interoperability Between Independent Networks
Services

Blockchain Services

From planning to development and operations, the technology your blockchain business needs.

Cross-Chain & Interchain

Bridges for moving assets and exchanging data between different blockchain networks.

Interoperability

Wallet Technology

Secure asset management solutions, from custodial and non-custodial wallets to MPC multisig and hardware wallet integration.

Wallet

Tokens / Smart Contracts

ERC-20, ERC-721, and ERC-1155 token development, with secure, audited contract deployment.

Smart Contract View Service Details

Block Explorers

Custom explorers for real-time lookup of transactions, blocks, addresses, and tokens.

Explorer

Swap / Staking

Activate your token economy with token swap, staking, and reward systems.

DeFi

dApps & Developer Environments

Support for developer ecosystems, including decentralized application development, SDKs/APIs, and testnet environments.

Developer

NFT Marketplace

A full-stack marketplace with NFT minting, trading, and auctions, including royalties and secondary sales.

NFT

Blockchain Landing Pages

Professional landing pages for marketing such as project branding, token sales, and IDOs.

Web3

DEX / CEX Exchanges

Decentralized and centralized exchange platforms with order matching, liquidity pools, and KYC/AML support.

Exchange

Exchange Market Data Integration

Integration with major exchange APIs, real-time market data, oracles, and charting systems.

Market Data

Admin Dashboards

Admin panels for managing node status, transactions, users, and token distribution in one place.

Admin

Security Audits & Consulting

Smart contract security audits, vulnerability assessments, architecture reviews, and technical consulting.

Security
Cross-Chain Infrastructure

Cross-chain infrastructure
connecting every chain

Securely connect networks running different protocols such as Ethereum, Avalanche, and Hyperledger Besu. From asset transfers to data verification, operate without boundaries between chains.

Secure Bridge Protocols

Secure cross-chain bridges based on multi-signature and zero-knowledge proofs

Real-Time Asset Transfers

Move assets between chains quickly, with fast finality and low fees

Multi-Chain Compatibility

Support for a wide range of blockchain protocols, including EVM and non-EVM

Wallet & Security

Enterprise-grade
digital asset management

We build wallet solutions with enterprise-level security. From MPC-based key management to multisig and cold wallet integration, we design a security architecture that matches the scale of your assets.

MPC-Based Key Management

Keep keys secure with distributed signing and no single point of failure

Smart Contract Security Audits

An audit process combining static and dynamic analysis with expert review

Real-Time Anomaly Detection

On-chain transaction monitoring with automated alerts

Process

Project Process

We deliver projects through a structured process and clear communication.

01

Requirements Analysis

We analyze your business goals and technical requirements and propose the best blockchain architecture.

02

Architecture Design

We select the consensus algorithm and define the network topology and smart contract structure.

03

Development & Verification

We develop on testnet, run security audits and performance tests, and verify quality.

04

Deployment & Operations

After mainnet deployment, we provide ongoing 24/7 monitoring, maintenance, and upgrades.

Tech Stack

Technology Stack

We build stable systems on proven open-source and enterprise technologies.

AWS

AWS

Cloud Infrastructure

Solidity

Solidity

Smart Contract

Hardhat

Hardhat

Dev Framework

TypeScript

TypeScript

Language

Node.js

Node.js

Backend Runtime

Docker

Docker

Containerization

Grafana

Grafana

Monitoring

Web3.js

Web3.js

Blockchain SDK

Patents & IP

Registered Patents

We hold patents on core blockchain technologies and maintain our technical edge through continuous research and development.

Patent No. 10-XXXXXXX

Blockchain-Based Decentralized Identity Authentication System and Method

Self-sovereign identity authentication technology using the DID (Decentralized Identity) protocol

Registered: Jun 2024
Patent No. 10-XXXXXXX

Secure Bridge Protocol for Cross-Chain Asset Transfers

A method for secure multi-chain asset transfer and verification based on zero-knowledge proofs

Registered: Nov 2024
Patent No. 10-XXXXXXX

Automated Smart Contract Security Audit System

Automated vulnerability detection combining static analysis and symbolic execution

Registered: Mar 2025
Portfolio

Project Track Record

We have successfully delivered blockchain projects across a wide range of industries.

Exchange Global digital asset exchange platform screen

Global Digital Asset Exchange

A centralized digital asset exchange platform with multi-exchange market data integration and an order matching engine, including real-time charts, wallets, and an admin dashboard.

Go WebSocket PostgreSQL React
DeFi · DEX Decentralized exchange (DEX) platform screen

Decentralized Exchange Platform

A secure smart-contract-based token swap and liquidity pool management system, with real-time charts and portfolio tracking.

Solidity EVM The Graph React
Web3 · WaaS Enterprise Web3 wallet WaaS service screen

Enterprise Web3 Wallet WaaS

WaaS (Wallet-as-a-Service) that lets companies easily add wallets to their own services, with key management, multi-chain transfers, and API integration.

Web3 KMS REST API Node.js
NFT · Marketplace NFT marketplace platform screen

NFT Marketplace

An NFT marketplace for minting and trading digital art and collections, with collection showcases, auctions, and royalty distribution.

ERC-721 IPFS Polygon Next.js
Multi-Chain · Wallet Multi-chain digital asset wallet app screen

Multi-Chain Digital Asset Wallet

A non-custodial digital asset wallet for viewing, sending, and managing assets across multiple blockchain networks in one app.

React Native EVM Web3 Secure Enclave
Trading · Signal Real-time crypto and exchange signal app screen

Real-Time Crypto & Exchange Signal App

A trading app that collects market data from multiple exchanges in real time and delivers personalized trading signals and alerts.

Flutter WebSocket Redis FCM
50+
Blockchain Projects Delivered
12
Core Service Areas
99.9%
Network Uptime
24/7
Operational Monitoring
Client Reviews

Client Reviews

What the partners we have worked with say.

"They handled everything from building the private network to the management tools, which saved us significant internal resources. Their strong technical understanding made communication very smooth."

K
Kim O., Director
Financial IT Services Company

"We were able to launch our NFT marketplace on a tight schedule. They were thorough even with the smart contract security audit, so we could open the service with confidence."

P
Park O., CEO
NFT Content Startup

"We commissioned tokenomics design and staking contract development, and they even reviewed our economic model. It felt like having a technology partner rather than an outsourcer. We are also happy with the post-deployment support."

L
Lee O., Team Lead
DeFi Project

"They developed our exchange system end to end, from the order matching engine to real-time market data and the admin dashboard. It stays stable even during traffic spikes."

C
Choi O., CTO
Digital Asset Exchange

"We entrusted them with cross-chain bridge development. The security design was solid and the testnet verification was systematic. They also provided a monitoring dashboard after mainnet deployment, which makes operations easy."

J
Jung O., Head of Division
Blockchain Infrastructure Company

"We started the project with no understanding of blockchain, and they kindly led us from technical consulting through development. They explained things clearly even for non-developers, and we are grateful."

S
Shin O., CEO
Retail Platform Startup

"We built a private chain on Hyperledger Besu, and they handled everything professionally, from node setup and consensus selection to performance tuning. Our internal audit team was satisfied too."

H
Han O., General Manager
IT Affiliate of a Major Corporation

"We commissioned a wallet solution, and they fully met our security requirements, from MPC-based key management to multisig and biometric authentication. Their maintenance response is fast, too."

Y
Yoon O., Manager
Fintech Services Company

"They developed our block explorer and admin dashboard. Features such as real-time transaction monitoring and node status visualization are intuitive, and they responded quickly to customization requests."

O
Oh O., Team Lead
Public Institution Blockchain Task Force

"They worked on the dApp front end and smart contracts at the same time, and their deep understanding of Web3 UX was impressive. The details, such as MetaMask integration and transaction state handling, were excellent."

A
Ahn O., Lead
Web3 Game Project

"They handled everything from building the private network to the management tools, which saved us significant internal resources. Their strong technical understanding made communication very smooth."

K
Kim O., Director
Financial IT Services Company

"We were able to launch our NFT marketplace on a tight schedule. They were thorough even with the smart contract security audit, so we could open the service with confidence."

P
Park O., CEO
NFT Content Startup

"We commissioned tokenomics design and staking contract development, and they even reviewed our economic model. It felt like having a technology partner rather than an outsourcer. We are also happy with the post-deployment support."

L
Lee O., Team Lead
DeFi Project

"They developed our exchange system end to end, from the order matching engine to real-time market data and the admin dashboard. It stays stable even during traffic spikes."

C
Choi O., CTO
Digital Asset Exchange

"We entrusted them with cross-chain bridge development. The security design was solid and the testnet verification was systematic. They also provided a monitoring dashboard after mainnet deployment, which makes operations easy."

J
Jung O., Head of Division
Blockchain Infrastructure Company

"We started the project with no understanding of blockchain, and they kindly led us from technical consulting through development. They explained things clearly even for non-developers, and we are grateful."

S
Shin O., CEO
Retail Platform Startup

"We built a private chain on Hyperledger Besu, and they handled everything professionally, from node setup and consensus selection to performance tuning. Our internal audit team was satisfied too."

H
Han O., General Manager
IT Affiliate of a Major Corporation

"We commissioned a wallet solution, and they fully met our security requirements, from MPC-based key management to multisig and biometric authentication. Their maintenance response is fast, too."

Y
Yoon O., Manager
Fintech Services Company

"They developed our block explorer and admin dashboard. Features such as real-time transaction monitoring and node status visualization are intuitive, and they responded quickly to customization requests."

O
Oh O., Team Lead
Public Institution Blockchain Task Force

"They worked on the dApp front end and smart contracts at the same time, and their deep understanding of Web3 UX was impressive. The details, such as MetaMask integration and transaction state handling, were excellent."

A
Ahn O., Lead
Web3 Game Project
FAQ

Frequently Asked Questions

Common questions about commissioning a blockchain project.

It depends on the project's size. Typically, a standalone smart contract takes 1–2 weeks, a full-stack build including a dApp takes 4–16 weeks, and a custom mainnet takes 4–24 weeks. After analyzing your requirements in the initial consultation, we propose a phased roadmap and a detailed schedule.
It depends on your business goals. If you need internal process automation or regulatory compliance, we recommend a private chain based on Hyperledger Besu. For tokenomics or DeFi services, we recommend a public chain such as Ethereum or Polygon. A hybrid of the two is also possible, and we will design the best structure with you through consultation.
Absolutely. We build full-stack Web3 services in one package, from smart contract design and deployment to wallet integration, transaction handling, and front-end UI/UX. A single team handles all development, with no need to coordinate separate vendors.
Yes. We offer separate maintenance contracts covering 24/7 monitoring, node operations, contract upgrades, and incident response after deployment. We ensure stable service operations based on an SLA and continue to support feature upgrades as needed.
Quotes are based on project scope, technology stack, and schedule. The initial consultation and requirements analysis are free, and once the analysis is complete we provide a detailed quote and project plan.
Yes, definitely. We work with you through the whole process, from the idea stage to organizing requirements, designing the service structure, modeling tokenomics, creating UI/UX wireframes, and establishing the technical architecture. Since we support you from planning to launch, feel free to come to us with just an idea.
Yes. We can handle everything together, from designing and building your own mainnet to issuing a native token and designing the tokenomics. Consensus algorithm selection, genesis block configuration, and token contract deployment are all carried out as a single project.
Yes. We also build the surrounding infrastructure needed to run a mainnet, including custom wallets (web and mobile), block explorers, and network monitoring dashboards.
Yes. Through APIs, oracles, and back-end servers, we can integrate with web services, mobile apps, IoT data, ERP systems, and more to create a unified on-chain and off-chain structure.
Contact

Start your
project today

We offer free consultations, from technical review to cost estimates. Leave a project overview and we will get back to you quickly.

Response Time Within 24 hours on business days
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