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.Â
Best Blockchain Development Agencies
3 Companies-Rankings updated: September 05, 2026
DesignRush assesses blockchain development firms for their technical expertise and verified client experiences to help you make better decisions. Some placements might be paid.
Dev.Pro is a software and smart contract development partner that allows innovative technology companies to amplify their growth ambitions and expedite time-to-market...
Top Services:
Software Development
Blockchain
Mobile App Development
Cloud Consulting
Digital Services
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Location
Charlotte, North Carolina
Number of Employees
500 - 999
Average Hourly Rate
$40/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
6 Projects Listed
Dev.Pro Services
Software Development
Blockchain
Mobile App Development
Cloud Consulting
Digital Services
UI/UX Design
DevOps Consulting
CRM Consulting
Big Data Analytics
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
XCM
LAVU
Cureatr
Securrency
Inveniam
Salesloft
Global Payments
Heartland
APIJET
Data sourced from the agency's DesignRush profile
Dev.Pro Reviews & Testimonials
Anoop Krishnan Technical Director at Lavu
5.0★
Software Development Review from Anoop Krishnan
We had an urgent business need to transfer our entire POS system and a related application to a new infrastructure on AWS. For this task, we were looking for a dedicated DevOps team. We found the perfect match with Dev.Pro, since they have proved their experience by successfully accomplishing multiple migration tasks and maintaining our solution 24/7. They did their best to perform a fast, risk-free migration from Rackspace to Amazon, initiated improvements in the CI / CD pipeline, and implement
Matthew Benedon Director of Strategy & Partnerships at Cureatr
5.0★
Software Development Review from Matthew Benedon
Dev.Pro planned this work accurately and executed it on time, on budget, and with remarkable quality. Our partner received a terrific application for critical secure text messaging, and Cureatr is better thanks to Dev.Pro’s work. Dev.Pro team members were professional, responsive, and a pleasure to work with.
Jason MsIntosh Director of Software Development at Heartland.us
5.0★
Software Development Review from Jason MsIntosh
The Heartland Billpay Solution, an integral part of Global Payments’ suite of financial tools, needed an extension team that is PCI-compliant, has expertise in FinTech, and could start contributing from day one. After just four months of cooperation, Dev.Pro has proven to be a great fit. The team members from Dev.Pro are modern software professionals. They have knowledge and apply best practices for software development: Agile, automation, unit testing, clean code, and more. The team facilitat
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
End-To-End Product Development | Agile Development Teams
Qarbon IT are experts in creating web and mobile applications with over 15 years of experience. We have the experience, knowledge and technical know-how to deliver an innovative digital product that will exceed your expectations. Qarbon IT assists businesses across major industries, such as finance, banking...
Top Services:
Software Development
Mobile App Development
UI/UX Design
eCommerce Development
IoT
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Location
Katowice, Poland
Number of Employees
50 - 99
Average Hourly Rate
$50/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
27 Projects Listed
Qarbon IT Services
Software Development
Mobile App Development
UI/UX Design
eCommerce Development
IoT
AI Development
Blockchain
Software Testing
Staff Augmentation
IT Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Takamol Holding
Cryptospace
Golem Network
Elvia entertainment ltd
Clubspeed
Holiday park & resort
Komputronik Group
Mann + Hummel
Bay Shore High School Alumni Association
aeternity
Data sourced from the agency's DesignRush profile
Qarbon IT Reviews & Testimonials
Jonasz Wieclawski Review from Google
5.0★
Jonasz Wieclawski's Review Sourced from Google
The best IT team in Poland I've ever worked with. They solve problems and find solutions to challenges that most people would throw up their hands in disbelief. In my opinion, this is a testament to the caliber and quality of the developers who, to a greater or lesser extent, shape our business's success.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
#1 in Cybersecurity, Blockchain, AI&ML, Python, NodeJS
Apriorit is a leader in smart contract development, cybersecurity services, along with advanced data management technologies. Other services offered by this IT firm include SaaS engineering, Driver development, system programming, professional reverse engineering, blockchain, AI&ML and more...
Top Services:
Software Development
Blockchain
IT Services
Cybersecurity
Web Development
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Location
Lynn, Massachusetts
Number of Employees
250 - 499
Average Hourly Rate
$100/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
8 Projects Listed
Apriorit Services
Software Development
Blockchain
IT Services
Cybersecurity
Web Development
Web Design
AI Development
Mobile App Development
Software Testing
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Smart contract development and auditing: Writing self-executing code and reviewing it to prevent bugs, exploits, or costly failures Â
dApp development: Building decentralized apps that run on blockchain networks instead of centralized servers Â
Token development and NFT platforms: Creating digital tokens, cryptocurrencies, and marketplaces for trading assets Â
Blockchain integration: Connecting blockchain with existing systems like web apps, enterprise software, or cloud platforms Â
Private and enterprise blockchain solutions: Setting up custom networks for businesses that need control, privacy, and scalability Â
Blockchain consulting: Advising on use cases, architecture, and whether blockchain is the right fit Â
Wallet development: Building secure wallets for storing and managing digital assets Â
Maintenance and support: Monitoring performance, fixing issues, and updating systems after launchÂ
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.Â
Key platforms and networks:Â
Ethereum: The most widely used platform for smart contracts and decentralized applications Â
Solana: Built for high speed and low fees, often used for scalable dApps and marketplaces Â
Avalanche: A flexible platform that supports custom blockchain networks and fast transaction finality Â
Hyperledger Fabric: Designed for private, permissioned systems used by enterprises Â
Corda (R3): Common in finance and regulated industries where data privacy is critical Â
IBM Blockchain: Enterprise-grade solution built on Hyperledger for secure business use cases Â
Development tools and infrastructure that blockchain development agencies use:Â
Node providers (e.g., Alchemy, Infura, QuickNode): Give developers access to blockchain networks without running their own nodes Â
Smart contract tools (e.g., Remix IDE): Used to write, test, and deploy contract code Â
Frameworks and CLIs (e.g., Ignite CLI): Help set up and manage blockchain projects fasterÂ
How much do blockchain companies charge for their services?
Simple solutions: 1 to 2 months Basic wallets or simple smart contract apps Â
Mid-level projects: 2 to 4 months dApps with integrations and user functionality Â
Complex systems: 4 to 9+ months DeFi platforms, marketplaces, or enterprise solutions Â
Blockchain development agencies build products in stages, and each is adding time:Â
Planning and requirements: 1 to 2 weeks Â
Architecture and design: 2 to 4 weeks Â
Development: 1 to 6 months Â
Testing and QA: 2 to 4 weeks Â
Deployment: 1 to 2 weeksÂ
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.Â
You can see the main differences in the following table:Â
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.Â
Key security practices include:Â
Smart contract audits: Reviewing code to detect bugs, exploits, and logic flaws before deployment Â
Secure development practices: Using proven frameworks, code standards, and peer reviews Â
Encryption and key management: Protecting data with cryptography and secure storage of private keys Â
Testing and simulation: Running stress tests and attack scenarios to identify weaknesses Â
Access control: Limiting permissions and enforcing authentication for users and systems Â
Ongoing monitoring: Tracking activity, detecting threats, and applying updates or patches quickly Â
Security is built into every stage, not added after deployment.Â