Web3 Pioneers

Blockchain & Web3 Development Company in Stockholm

Q: How much does blockchain development cost in Stockholm?

Blockchain development in Stockholm, Stockholm ranges from $25,000 for a simple smart contract and dApp to $400,000+ for complex DeFi protocols. The cost depends on the chain, contract complexity, security audit scope, and frontend requirements.

Q: Which blockchain should I build on in Stockholm?

The best blockchain depends on your use case. Ethereum offers the largest ecosystem, Polygon provides low gas fees, Solana excels at high throughput, and Base is great for consumer apps. Our Stockholm, Stockholm team evaluates your requirements and recommends the optimal chain.

Q: How long does it take to develop a smart contract in Stockholm?

A simple smart contract can be developed in 2-4 weeks. Complex DeFi protocols with multiple contracts and integrations take 3-6 months including security audits. Our Stockholm team follows industry best practices to ensure secure, gas-optimized code.

Q: Do you audit smart contracts for Stockholm projects?

Yes, we perform comprehensive smart contract security audits for projects in Stockholm, Stockholm. Our audit process includes automated scanning with Slither and Mythril, manual code review, and formal verification. We also partner with leading audit firms for additional review.

Q: Can you build an NFT marketplace in Stockholm?

Absolutely. Our Stockholm, Stockholm team has built NFT marketplaces with features including minting, auctions, royalty enforcement, collection management, and multi-chain support. We handle everything from smart contracts to the frontend user experience.

Q: Do you develop DeFi applications in Stockholm?

Yes, we develop DeFi applications for clients in Stockholm, Stockholm, including DEXs, lending protocols, yield aggregators, and staking platforms. Our team understands the unique security requirements of DeFi and follows battle-tested patterns from protocols like Uniswap and Aave.

Q: Is blockchain right for my Stockholm business?

Blockchain is ideal when you need transparency, decentralization, or trustless execution. Not every business needs it. Our Stockholm, Stockholm team provides honest assessments — if a traditional database solves your problem better, we'll recommend that instead. Book a free consultation to explore.

Stockholm is Europe's unicorn factory, producing more billion-dollar startups per capita than any city outside Silicon Valley. Home to Spotify, Klarna, King, and iZettle, the city has a unique culture of innovation that blends design thinking with engineering excellence. Our Stockholm team builds world-class products for the Nordic region's most ambitious tech companies.

65M+

Users on Our Apps

99%

Client Satisfaction

15+

Nordic Projects

9wk

Avg MVP Delivery

Get a Free Quote View Case Studies

Get Your Custom Project Plan

Share your project details — a senior engineer responds within 4 hours.

🔒NDA Protected

⚡4hr Response

💬Free Consultation

4.9/5

Clutch Rating

500+

Projects Delivered

ISO

27001 Certified

SOC II

Compliant

99%

Client Satisfaction

Service Overview

Blockchain & Web3 Development Solutions for Stockholm Businesses

Build decentralized applications, smart contracts, and Web3 infrastructure with our Stockholm, Stockholm blockchain team. We deliver secure, audited, and scalable solutions for DeFi, NFT marketplaces, and enterprise blockchain platforms.

Why Blockchain & Web3 Development in Stockholm?

Stockholm, Stockholm is a thriving hub for technology and innovation. Businesses here demand top-tier blockchain & web3 development solutions that can compete on a global stage while addressing local market needs. Our team combines deep technical expertise with an understanding of Stockholm's unique business landscape to deliver solutions that drive measurable results.

Years Experience

Countries Served

200+

Engineers

What You Get

Custom-built solutions tailored to your business

Dedicated project manager in your timezone

Agile development with weekly sprint demos

Full source code ownership from day one

Comprehensive QA and security testing

90-day post-launch support included

NDA and IP protection guaranteed

Fixed-price or flexible engagement models

What We Build

Blockchain & Web3 Development Services We Offer in Stockholm

Stockholm's fintech and gaming sectors have specific technical demands that off-the-shelf solutions cannot address. Our blockchain services are built around industry-specific compliance and integration requirements for fintech clients, and low-latency multiplayer networking, anti-cheat systems, and in-app purchase flows for gaming businesses. Every engagement starts with a deep-dive into your domain so we ship software that meets both your users' expectations and your industry's regulatory standards.

📜

Smart Contract Development & Auditing

Design, develop, and audit production-grade smart contracts on Ethereum, Polygon, Solana, and other EVM-compatible chains. We write gas-optimized Solidity code, implement comprehensive test suites, and conduct security audits to prevent exploits and ensure reliability.

SolidityEthereumPolygonHardhatSecurity Audits

🏦

DeFi & NFT Platform Development

Build decentralized finance protocols, NFT marketplaces, and token launchpads with battle-tested smart contracts. We implement AMMs, lending protocols, staking mechanisms, and marketplace features with seamless wallet integration and cross-chain compatibility.

DeFiNFTUniswapOpenSeaToken Standards

👛

Crypto Wallet Development

Build secure, user-friendly cryptocurrency wallets with multi-chain support, hardware wallet integration, and transaction management.

🌍

Web3 dApp Development

Create full-stack decentralized applications with React frontends, smart contract backends, and IPFS-based decentralized storage.

🪙

Tokenomics & Token Launch

Design token economies, implement ERC-20/721/1155 contracts, and set up fair launch mechanisms with vesting and governance.

🔐

Enterprise Blockchain Solutions

Implement private blockchains and permissioned networks for supply chain tracking, digital identity, and cross-organization data sharing.

Industry Expertise

Blockchain & Web3 Development for Stockholm's Key Industries

Stockholm is a major hub for Fintech, Gaming, Music Tech, along with E-Commerce and SaaS. Our blockchain work in Stockholm is shaped by the specific demands of these sectors — from regulatory compliance and data security requirements in Fintech to the high-performance, user-facing experiences expected in Gaming. We bring deep domain knowledge that generic agencies simply cannot match, having delivered blockchain solutions to businesses across Stockholm since 2018.

💳

FintechBlockchain & Web3 Development Solutions

🎮

GamingBlockchain & Web3 Development Solutions

🎯

Music TechBlockchain & Web3 Development Solutions

🛒

E-CommerceBlockchain & Web3 Development Solutions

☁️

SaaSBlockchain & Web3 Development Solutions

Our Process

Our Blockchain & Web3 Development Development Process

Our Stockholm engagements follow the same rigorous process we use at our Edmonton and Chandigarh headquarters, with a dedicated project manager in your timezone. For blockchain projects serving Stockholm's fintech market, we typically front-load discovery with stakeholder interviews and competitive analysis specific to Stockholm's regulatory environment. This ensures zero wasted sprints and a product that fits your market from day one.

Blockchain Strategy

1-2 Weeks

We evaluate whether blockchain is the right fit, select the optimal chain, define tokenomics, and architect the decentralized system.

Deliverables

Blockchain Feasibility ReportChain Selection AnalysisTokenomics DesignSystem Architecture

Smart Contract Design

2-3 Weeks

Design smart contract architecture, define data structures, and map out contract interactions with detailed technical specifications.

Deliverables

Contract Architecture DiagramTechnical SpecificationsGas Optimization PlanSecurity Requirements

Development & Testing

4-8 Weeks

Write and test smart contracts with 100% test coverage. Build the frontend dApp with wallet connection, transaction handling, and blockchain event listeners.

Deliverables

Smart ContractsTest Suite (100% Coverage)Frontend dAppTestnet Deployment

Security Audit

2-3 Weeks

Comprehensive smart contract audit including automated vulnerability scanning, manual code review, and formal verification of critical functions.

Deliverables

Audit ReportVulnerability AssessmentRemediation PlanFinal Audit Certificate

Mainnet Launch

1-2 Weeks

Deploy verified contracts to mainnet, configure monitoring, set up multisig governance, and launch with community engagement support.

Deliverables

Mainnet DeploymentVerified ContractsMonitoring DashboardLaunch Documentation

Technology

Technologies We Use for Blockchain & Web3 Development

For Stockholm fintech clients, our stack choices are driven by specialized infrastructure. Gaming projects in Stockholm often require additional focus on data residency and performance at scale — we select tools that satisfy both technical requirements and regional compliance standards.

Smart Contracts

SolidityRustHardhatFoundryOpenZeppelin

Smart Contracts

Solidity · Rust · Hardhat · Foundry +1 more

Blockchain Networks

Ethereum · Polygon · Solana · Arbitrum +1 more

Web3 Frontend

ethers.js · wagmi · RainbowKit · WalletConnect +1 more

Infrastructure

IPFS · The Graph · Alchemy · Chainlink +1 more

Why Choose Us

Why Stockholm Businesses Choose Codazz for Blockchain & Web3 Development

We combine world-class engineering with local market understanding to deliver blockchain & web3 development solutions that drive real business outcomes.

🏦

Fintech Unicorn Capital

Klarna, iZettle, and Northvolt started here. We build PSD2-compliant payment platforms, buy-now-pay-later solutions, and open banking APIs.

🎮

Gaming Powerhouse

King, DICE, and Mojang (Minecraft) call Stockholm home. We build game backends, live service platforms, and multiplayer infrastructure at massive scale.

🎵

Music & Audio Tech

Spotify transformed music from Stockholm. We build audio streaming platforms, recommendation engines, and creator monetization tools.

☁️

SaaS & Product-Led Growth

Stockholm's SaaS companies lead in PLG strategy. We build self-serve platforms, usage-based billing systems, and product analytics tools.

📍

Local Expertise

Our team understands the regulatory landscape, business culture, and user expectations specific to your city. We combine global engineering standards with hyper-local market knowledge to build products that resonate with your target audience from day one.

📈

Proven Track Record

With 500+ projects delivered across 24 countries since 2018, we bring battle-tested processes and domain expertise to every engagement. Our client retention rate of 94% speaks to the long-term partnerships we build, not just one-off projects.

👥

Dedicated Team

Every project gets a dedicated cross-functional team including a project manager, lead architect, senior developers, QA engineers, and a DevOps specialist. No freelancers, no outsourcing your project to third parties - your team is your team throughout.

🛠️

Post-Launch Support

Our relationship does not end at deployment. We provide 90 days of complimentary post-launch support, proactive monitoring, performance optimization, and a dedicated Slack channel for your team. Most clients continue with our maintenance retainer plans.

Real Results from Real Projects

We measure success by the impact we create. Here are three recent projects that showcase our blockchain & web3 development capabilities.

💳

FinTech

Digital Banking Platform

Built a full-stack digital banking app with real-time payments, biometric auth, and PCI-DSS compliance. Scaled from 0 to 100K+ active users within 8 months of launch.

4.9★

App Store Rating

100K+

Active Users

99.99%

Uptime SLA

React NativeNode.jsAWSStripe

🛒

E-Commerce

Omnichannel Retail Platform

Designed and developed a headless commerce platform integrating 12 sales channels with unified inventory, AI-powered recommendations, and sub-second page loads globally.

Revenue Growth

340%

Conversion Lift

<0.8s

Load Time

Next.jsShopify PlusAlgoliaVercel

🏥

Healthcare

Telehealth & Patient Portal

Delivered a HIPAA-compliant telehealth platform with video consultations, EHR integration, e-prescriptions, and a patient portal serving 50K+ patients across 200+ providers.

HIPAA

Compliant

50K+

Patients Served

4.8★

Provider Rating

ReactPythonFHIRAzure

View All Case Studies

Client Testimonials

What Stockholm Clients Say About Us

Real feedback from businesses we have partnered with on blockchain & web3 development projects.

“

“Payment platform processing SEK 5B monthly across the Nordics. PSD2 compliant with 99.99% uptime — our merchants and regulators are equally satisfied.”

Erik Johansson

CTO, NordPay Solutions

“

“Audio streaming platform with 2M+ subscribers. Codazz built recommendation algorithms that increased listening time by 35% — users are more engaged than ever.”

Linnea Andersson

VP Product, SoundWave Studios

“

“Multiplayer game backend handling 500K concurrent players. Zero downtime during peak launches — a first for us after years of launch-day crashes.”

Magnus Lindqvist

Head of Engineering, Viking Games AB

FAQs

Frequently Asked Questions About Blockchain & Web3 Development in Stockholm

Have a question not listed here? Reach out to our team and we will get back to you within 4 hours.

Ask a Question

Blockchain development in Stockholm, Stockholm ranges from $25,000 for a simple smart contract and dApp to $400,000+ for complex DeFi protocols. The cost depends on the chain, contract complexity, security audit scope, and frontend requirements.

The best blockchain depends on your use case. Ethereum offers the largest ecosystem, Polygon provides low gas fees, Solana excels at high throughput, and Base is great for consumer apps. Our Stockholm, Stockholm team evaluates your requirements and recommends the optimal chain.

A simple smart contract can be developed in 2-4 weeks. Complex DeFi protocols with multiple contracts and integrations take 3-6 months including security audits. Our Stockholm team follows industry best practices to ensure secure, gas-optimized code.

Yes, we perform comprehensive smart contract security audits for projects in Stockholm, Stockholm. Our audit process includes automated scanning with Slither and Mythril, manual code review, and formal verification. We also partner with leading audit firms for additional review.

Absolutely. Our Stockholm, Stockholm team has built NFT marketplaces with features including minting, auctions, royalty enforcement, collection management, and multi-chain support. We handle everything from smart contracts to the frontend user experience.

Yes, we develop DeFi applications for clients in Stockholm, Stockholm, including DEXs, lending protocols, yield aggregators, and staking platforms. Our team understands the unique security requirements of DeFi and follows battle-tested patterns from protocols like Uniswap and Aave.

Blockchain is ideal when you need transparency, decentralization, or trustless execution. Not every business needs it. Our Stockholm, Stockholm team provides honest assessments — if a traditional database solves your problem better, we'll recommend that instead. Book a free consultation to explore.

Explore

Other Services We Offer in Stockholm

Looking for a different service? Explore our full range of technology solutions available in Stockholm.

Mobile Apps in Stockholm

Web Dev in Stockholm

AI / ML in Stockholm

Design in Stockholm

Explore Our Blockchain & Web3 Development Specializations

Dive deeper into our specialized blockchain & web3 development offerings.

Smart Contract Development DeFi Development NFT Marketplace Crypto Wallet Development Web3 dApp Development

Blockchain & Web3 Development in Other Cities

We deliver blockchain & web3 development solutions across 45 cities in 24 countries. Find a location near you.

View All 45 Locations

Ready to Build?

Start Your Blockchain & Web3 Development Project in Stockholm

Get a Free Proposal All Stockholm Services

NDA on Day 1

Fixed-Price Guarantee

48hr Proposal

Secure Data Residency

Average response time: 4 hours

Selected Projects

Latest Work

📱 Mobile Apps🌐 Web Platforms🤖 AI Products💰 FinTech🏥 HealthTech🛒 E-Commerce📚 EdTech🚚 Logistics🏠 Real Estate🎮 Gaming

Web Design3D Animation

01

Rapida

Delivery Service Platform

A high-performance delivery platform with real-time tracking and immersive 3D visualizations.

UI/UXSecurity

02

Fynsec

Cybersecurity Dashboard

Enterprise-grade security dashboard with real-time threat monitoring and analytics.

E-CommerceCreative

03

Pallet Ross

Art Marketplace

A curated marketplace connecting artists with collectors worldwide.

Mobile DevFlutter

04

Rapida Mobile

iOS/Android App

Cross-platform mobile experience with seamless delivery tracking and notifications.

APIMicroservices

05

Fynsec API

Backend Infrastructure

Scalable microservices architecture handling millions of security events daily.

Admin PanelAnalytics

06

Pallet Ross Admin

CMS Dashboard

Comprehensive content management system with advanced analytics and reporting.

01 / 06

Drag to explore or use arrow keys

Our Work

Products That Users Actually Love.

200+ products shipped across fintech, healthcare, e-commerce, and SaaS — built to scale, designed to convert.

Mobile App

FinTech Trading Platform

FinTech Startup

Results

2.1B+ Transactions

50ms Latency

4.8★ Rating

Technology

React NativeNode.jsAWS

Healthcare App

Telehealth Solution

Healthcare Network

Results

120+ Clinics

500K Consultations

HIPAA Certified

Technology

SwiftKotlinGCP

Mobile Platform

E-Commerce Marketplace

E-Commerce Brand

Results

85K MAU

28% Conversion

$12M GMV

Technology

FlutterGoMongoDB