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Top Blockchain Development Companies in Sydney

We've found the best
Blockchain Development Companies
 for you.

Looking for the best blockchain development company in Sydney? UpCity compiles authentic reviews, company descriptions, project examples, and more into a list for you to review. Feel confident you're finding the top provider for your business.

UpCity offers objective, independent research and verified user reviews. We earn compensation from some providers who sign up for sponsored profiles. Learn more about our trusted providers.

Location
Any/All Available
Provider's minimum per-project cost
Any/All Available
$25,000 or more
Provider's minimum retainer cost
Any/All Available
$5,000 or more, monthly
Industry Expertise
Any/All Available
Attorneys
Automotive
Business Services
Construction
E-Commerce
Education
Energy
Entertainment
Finance
Fitness
Food/Beverage
Government
Healthcare
Hospitality
Industrial
Non-Profit
Real Estate
Restaurant
Retail
SaaS
Sports
Startups
Travel
Businesses provider works with
Any/All Available
Small Businesses: 1–250 employees
Medium Businesses: 251–999 employees
Enterprise Businesses: 1000+ employees
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6 Provider(s)Last Updated: October 28, 2025
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Zazz

Sydney, NSW, AU + 1 More Location
5.0 | 1 review
Last reviewed on 9/8/2025
Zazz is a trusted software engineering and IT services partner helping enterprises deliver secure, scalable, and high-impact technology initiatives. We Solve complex enterprise challenges - legacy bottlenecks, technical debt, talent shortages, compliance risks, and system fragmentation.
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Businesses provider works with
Works with
Small, Medium, Enterprise
Provider's minimum per-project cost
Per-project minimum
$25,000 or more
Provider's minimum retainer cost
Retainer minimum
$5,000 or more, monthly
Provider updated information on 9/8/2025
Services Offered
Ruby on Rails DevelopmentMachine LearningBlockchain DevelopmentAndroid App DevelopmentiOS App DevelopmentView All Services (32)
VISIT WEBSITE Visit Profile
Ritik Vishwakarma — Manager GTM Strategy
Zazz has been a pivotal IT Managed Services Partner for us, we have been struggling to manage helpdesk tickets and support. They have been able to bring our ticket volumes for 250 per week to 30-40. Critical issues have gone down significantly. Will highly recommend Zazz IT Managed Services
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We’re a custom software development company with Austin, TX roots and partnerships across the nation. From application development and enterprise architecture to full-on IT modernization, our solutions and services enable you to move faster, work better, and stand out in a shifting market.
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Businesses provider works with
Works with
Small, Medium, Enterprise
Provider updated information on 1/20/2022
Services Offered
Blockchain DevelopmentSoftware DevelopmentWebsite DevelopmentJava DevelopmentEcommerce DevelopmentView All Services (10)
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Industry(s):
Finance | Business Services
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AWS MINING

Sydney, NSW, AU See Location
Crypto, Blockchain, Bitcoin, Mining, and More...
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Services Offered
Blockchain Development
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AlphaWallet

Sydney, NSW, AU See Location
AlphaWallet is a production-ready and easy to customise whitelabel Wallet for your business. Leverage blockchain and tokenization faster, and launch your MVP in one fifth of the time and cost compared to in-house solutions.
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Services Offered
Blockchain Development
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Espay

Sydney, NSW, AU See Location
Espay delivers seamless #blockchain development solutions. Contact us for blockchain consulting, #Dapp, #smartcontract, #ethereum, #exchange & #wallet.
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Services Offered
Blockchain Development
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Australia?s first publicly available across-the-grid #P2P energy product. Software for #prosumers of #electricity everywhere accessing markets using #blockchain
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Services Offered
Blockchain Development
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