Find blockchain development companies that build secure, scalable solutions for real business use. Choose from vetted experts in smart contracts, dApps, and enterprise blockchain integration. 

Higher Education × $25,000 - $50,000 ×
  • Exaud

    Verified Verified by the DesignRush team for authenticity and credibility.

    Precise Software Solutions

    We are a software engineering and digital strategy AI company...

    Top Services:

    • AI Development
    • IoT
    • Mobile App Development
    • Software Development
    • Wearables
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    Location
    Ermesinde, Portugal
    Number of Employees
    50 - 99
    Average Hourly Rate
    $70/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    12 Projects Listed

    Exaud Services

    • AI Development
    • IoT
    • Mobile App Development
    • Software Development
    • Wearables
    • Blockchain
    • DevOps Consulting
    • Staff Augmentation
    • Cybersecurity
    • IT Compliance Solution
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Anoto
    • Samsung
    • NDrive
    • Blaupunkt
    • Audi
    • Essent
    • Facebook
    • Google
    • Nissan
    • Presto
    Data sourced from the agency's DesignRush profile

    Exaud Reviews & Testimonials

    • Dmitriy Ksendzovsky
      Dmitriy Ksendzovsky CEO at Software Consulting
      4.8

      Educational Review from Dmitriy Ksendzovsky

      I have had an positive experience working with Exaud on expanding and maintaining several software products. Our software consulting technology stack is quite wide, from embedded development to mobile game dev, making it challenging to find the right partner knowledgeable in a number of these areas. The Exaud team is professional, flexible and continues to provide the development expertise we require to fulfill our project needs on time and budget.

    • Stacy McCarthy
      Stacy McCarthy President at Learning Design Network, Inc.
      4.8

      Educational Review from Stacy McCarthy

      Learning Design Network has been providing expert learning programs for 20 years, helping nearly 1 million employees worldwide achieve professional success. COVID prompted us to digitalize our product and we chose Exaud as our technology partner. Together, we developed a comprehensive digital tool for customized training and effortless collaboration in a 3D digital environment. The platform leverages our expertise and Exaud's technical capabilities, delivering a high-quality user experience.

    • Tim Martin
      Tim Martin Software Architecture and Engineering at FS Studio
      5.0

      Enterprise Review from Tim Martin

      We have a very long history of working with Exuad, which in itself is about the best endorsement you can have. We have been working with them on projects for going on 10 years and they are our go to external dev team. Georg and team are not only very talented they are highly ethical. To me the later point is the most important, you can trust that they will provide high quality work and you can absolutely trust them on the business side.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Accelone Advancing What's Possible

    Embark on your digital transformation journey with AccelOne's Software Development delivery model, strategically designed for optimal outcomes. Initiate your digital transformation seamlessly through our comprehensive nearshore and US-based services...

    Top Services:

    • Software Development
    • Mobile App Development
    • Blockchain
    • UI/UX Design
    • eCommerce Development
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    Location
    Seattle, Washington
    Number of Employees
    100 - 249
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    5 Projects Listed

    AccelOne Services

    • Software Development
    • Mobile App Development
    • Blockchain
    • UI/UX Design
    • eCommerce Development
    • Web Development
    • AI Development
    • Staff Augmentation
    • IT Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • HSBC
    • Xapo
    • University of Washington
    • Pan American Energy SL
    • Cartoon Network
    Data sourced from the agency's DesignRush profile

    AccelOne Reviews & Testimonials

    • Gustavo Lemos
      Gustavo Lemos Review from Google
      5.0

      Gustavo Lemos's Review Sourced from Google

      I've been working in AccelOne for several years already and it's an amazing place to work. Great people and a good variety of clients.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Designing and Building Platforms for Your AI Bot Development.

    ISBX (Interactive, Strategy, Branding, Execution) stands as the premier web and mobile application development agency in Southern California, boasting extensive expertise across a diverse spectrum of digital services such as Mobile, Blockchain, IoT, Web3, and Web Development. With a track record of...

    Top Services:

    • Software Development
    • Mobile App Development
    • Web Development
    • Blockchain
    • IoT
    • Show more
    Location
    Los Angeles, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $150/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    7 Projects Listed

    ISBX Services

    • Software Development
    • Mobile App Development
    • Web Development
    • Blockchain
    • IoT
    • UI/UX Design
    • Web Design
    • Wearables
    • Software Testing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Apple
    • RedBull
    • Lexus
    • American Honda
    • Brain Corp
    • Science 37
    • WAG!
    • USC
    • Pasco Scientific
    Data sourced from the agency's DesignRush profile

    ISBX Reviews & Testimonials

    • Peggy McCabe
      Peggy McCabe Review from Google
      5.0

      Peggy McCabe's Review Sourced from Google

      ISBX is a very professional and talented web development company. The overall experience I had with them in the redesign of our website was outstanding. They were extremely creative, provided viable options at all junctures, and delivered on time and on budget. ISBX also provided a very hands-on, and professional team who understood our need for brand engagement and outreach to a new audience with our website refresh. The team also optimized the new site for mobile usage which was very important to us. ISBX successfully executed our complex project efficiently, with excellent communication and attention to detail at every step. I wouldn't hesitate to work with them again.

    • Kim Farley
      Kim Farley Review from Google
      5.0

      Kim Farley's Review Sourced from Google

      ISBX helped us from concept to launch without any issues. They were communicative, patient, and able to quickly implement solutions to project changes that came up along the way. We appreciate that they took the time to hold our hands with explanations and detailed questions to make the process as stress free as possible and to get a good understanding of our product.

    • Tony Alfaro
      Tony Alfaro Review from Google
      5.0

      Tony Alfaro's Review Sourced from Google

      I've been a client of ISBX for nearly three years. They are hands down the best development firm I have ever worked with. They are on budget and on time consistently. They are trustworthy, highly communicative, and very versatile. Nothing is in the "too hard box" for them.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • On demand elite tech talent

    Since 2006, X-Team has helped companies scale high-performing engineering teams by connecting them with elite remote developers from around the world...

    Top Services:

    • IoT
    • Software Testing
    • Blockchain
    • VR/AR
    • Mobile App Development
    • Show more
    Location
    Austin, Texas
    Number of Employees
    500 - 999
    Average Hourly Rate
    $99/hr
    Minimal Budget
    $25,000 - $50,000

    X-Team Services

    • IoT
    • Software Testing
    • Blockchain
    • VR/AR
    • Mobile App Development
    • Staff Augmentation
    • Cybersecurity
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Kaplan
    • FOX
    • Instil
    Data sourced from the agency's DesignRush profile

7 Frequently Asked Questions About Blockchain Development Companies

What services do blockchain development agencies offer?

Blockchain development agencies design, build, and support blockchain-based solutions that automate processes, improve transparency, and enable secure digital transactions. 

Common services include: 

  • Smart contract development and auditing: Writing self-executing code and reviewing it to prevent bugs, exploits, or costly failures  
  • dApp development: Building decentralized apps that run on blockchain networks instead of centralized servers  
  • Token development and NFT platforms: Creating digital tokens, cryptocurrencies, and marketplaces for trading assets  
  • Blockchain integration: Connecting blockchain with existing systems like web apps, enterprise software, or cloud platforms  
  • Private and enterprise blockchain solutions: Setting up custom networks for businesses that need control, privacy, and scalability  
  • Blockchain consulting: Advising on use cases, architecture, and whether blockchain is the right fit  
  • Wallet development: Building secure wallets for storing and managing digital assets  
  • Maintenance and support: Monitoring performance, fixing issues, and updating systems after launch 

What platforms do blockchain developers use?

Blockchain development firms use a mix of public networks, enterprise platforms, and developer tools to build, deploy, and manage blockchain solutions. They choose platforms based on speed, cost, scalability, and whether the project needs a public or private network. 

Key platforms and networks: 

  • Ethereum: The most widely used platform for smart contracts and decentralized applications  
  • Solana: Built for high speed and low fees, often used for scalable dApps and marketplaces  
  • Avalanche: A flexible platform that supports custom blockchain networks and fast transaction finality  
  • Hyperledger Fabric: Designed for private, permissioned systems used by enterprises  
  • Corda (R3): Common in finance and regulated industries where data privacy is critical  
  • IBM Blockchain: Enterprise-grade solution built on Hyperledger for secure business use cases  

Development tools and infrastructure that blockchain development agencies use: 

  • Node providers (e.g., Alchemy, Infura, QuickNode): Give developers access to blockchain networks without running their own nodes  
  • Smart contract tools (e.g., Remix IDE): Used to write, test, and deploy contract code  
  • Frameworks and CLIs (e.g., Ignite CLI): Help set up and manage blockchain projects faster 

How much do blockchain companies charge for their services?

Blockchain development companies typically charge from $40,000 to $300,000+ for a full solution, depending on complexity, features, and security requirements. 

Cost by project complexity 

The biggest cost driver is the solution's complexity, from basic smart contracts to full-scale platforms. 

  • Simple blockchain apps: $40,000 to $60,000 
    Basic features like simple smart contracts or payment functionality  
  • Mid-level applications: $60,000 to $150,000 
    dApps with user roles, integrations, and moderate decentralization  
  • Complex blockchain systems: $150,000 to $300,000+
    Enterprise platforms, advanced security, custom architecture 

Cost by solution type 

Different blockchain products have different price ranges based on functionality. 

  • dApps: $35,000 to $150,000  
  • NFT marketplaces: $55,000 to $125,000  
  • Crypto wallets: $125,000 to $200,000  
  • Crypto exchanges: $135,000 to $190,000  
  • DAO platforms: $10,000 to $30,000 

Cost breakdown across the project 

Your budget is split across multiple phases, not just development. 

  • Consulting and planning: 5%  
  • UI/UX design: 10%  
  • Core development: 45%  
  • Testing and QA: 25%  
  • Deployment and maintenance setup: 15% 

Final pricing depends on scope, security level, integrations, and whether you build on an existing blockchain or create a custom one. 

What are the ongoing costs of maintaining a blockchain solution?

Ongoing blockchain costs typically range from 15% to 25% of the initial development cost per year, depending on system complexity and usage.  

Key ongoing costs include: 

  • Maintenance and updates: Bug fixes, performance improvements, and feature upgrades  
  • Infrastructure: Node providers, cloud services, and storage as usage grows  
  • Security: Regular audits, monitoring, and protection against vulnerabilities  
  • Transaction fees: Ongoing network or gas fees for processing transactions  
  • Support and operations: Technical monitoring, DevOps, and user support  
  • Compliance: Legal, regulatory, and data protection requirements  

Costs increase as the system scales, handles more transactions, or requires higher security. 

How long does it take to build a blockchain solution?

The best blockchain development company typically needs 3 to 9+ months to build a blockchain solution, depending on complexity, features, and security requirements. 

Typical timeline by complexity: 

  • Simple solutions: 1 to 2 months 
    Basic wallets or simple smart contract apps  
  • Mid-level projects: 2 to 4 months 
    dApps with integrations and user functionality  
  • Complex systems: 4 to 9+ months 
    DeFi platforms, marketplaces, or enterprise solutions  

Blockchain development agencies build products in stages, and each is adding time: 

  • Planning and requirements: 1 to 2 weeks  
  • Architecture and design: 2 to 4 weeks  
  • Development: 1 to 6 months  
  • Testing and QA: 2 to 4 weeks  
  • Deployment: 1 to 2 weeks 

Factors that affect the timeline include scope and feature set, choice of blockchain platform, team experience, and whether you build from scratch or use existing tools.

What is the difference between public and private blockchains?

Public blockchains are open to anyone, while private blockchains are restricted to approved users and controlled by an organization. 

You can see the main differences in the following table: 

Feature Public blockchain Private blockchain
Access Anyone can join Permission required
Control Decentralized Controlled by one entity or group
Transparency Fully transparent Limited visibility
Speed Slower Faster
Cost Higher (transaction fees) Lower
Security High through decentralization High, but depends on governance
Use cases Crypto, DeFi, NFTs Enterprise systems, internal operations

How do blockchain development agencies ensure security?

Blockchain development firms ensure security by combining secure coding, testing, and continuous monitoring to prevent vulnerabilities and protect data and transactions. 

Key security practices include: 

  • Smart contract audits: Reviewing code to detect bugs, exploits, and logic flaws before deployment  
  • Secure development practices: Using proven frameworks, code standards, and peer reviews  
  • Encryption and key management: Protecting data with cryptography and secure storage of private keys  
  • Testing and simulation: Running stress tests and attack scenarios to identify weaknesses  
  • Access control: Limiting permissions and enforcing authentication for users and systems  
  • Ongoing monitoring: Tracking activity, detecting threats, and applying updates or patches quickly  

Security is built into every stage, not added after deployment. 

 

 

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