Smart contracts, DApps, NFT marketplaces, DeFi protocols and permissioned enterprise networks. Built on the platform your use case actually needs, and audited before it goes anywhere near a live network.
Trusted By
750+ happy clients, including top Fortune 500 companies
Overview
Blockchain technology is changing the way businesses handle data, transactions and agreements. But building a blockchain application isn’t as simple as picking a platform and writing code.
You need deep technical expertise, sound architectural decisions, and a development partner who understands both the technology and your business goals. At Sphinx Solutions, our team helps businesses explore and implement blockchain solutions across industries, including fintech, healthcare, supply chain, real estate and logistics.
We build on
What We Build
We offer end-to-end blockchain development services. Whether you’re starting from scratch or integrating blockchain into an existing system, we handle the full journey from idea to production.
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We start by understanding your business requirements and then recommend the right approach: public, private or consortium blockchain. Our team designs the network architecture, builds the core logic, and delivers a production-ready blockchain solution tailored specifically for your use case.
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Our smart contract development team writes clean, gas-optimised code in Solidity, Rust and Go. Every contract we write goes through a thorough audit before it’s deployed anywhere near a live network. We’ve built smart contracts for payment automation, tokenised assets, DeFi protocols, governance systems and more.
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We build DApps that are technically solid and easy for real users to navigate. That means clean interfaces, smooth wallet integration (MetaMask, WalletConnect) and fast load times even when the blockchain layer is complex underneath.
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We build enterprise blockchain solutions on Hyperledger Fabric and other permissioned networks. Our solutions have been used in industries like logistics, pharma, banking and manufacturing to improve traceability, reduce reconciliation costs, and eliminate manual processes that create errors and delays.
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We build full-featured NFT marketplace platforms, including minting, buying, selling, auctioning and royalty distribution. Our NFT marketplaces are built on Ethereum, Polygon and Solana, and include smart contract integration, IPFS-based storage, gas optimisation and creator tools.
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We develop custodial and non-custodial crypto wallets for mobile (iOS and Android) and web. Our wallets support multi-currency transactions, QR code payments, biometric authentication and hardware wallet integration. We also build white-label wallet solutions for businesses that want to launch quickly.
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We build DeFi protocols, including DEXs (decentralised exchanges), lending platforms, yield farming protocols, staking mechanisms and liquidity pools. We write audited smart contracts, build intuitive frontends, and integrate oracle solutions like Chainlink to bring real-world data on-chain.
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We develop ERC‑20, ERC‑721, ERC‑1155, BEP‑20 and custom token standards. We handle token minting, smart contract creation, tokenomics consultation, ICO/IDO launch support and token bridge development for cross-chain use.
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Our blockchain consultants work with CTOs, product owners and founders to evaluate use cases, assess feasibility, calculate ROI, and build a clear development roadmap. We’ll tell you honestly if blockchain is the wrong tool for your problem, because we’d rather help you succeed than sell you something you don’t need.
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We connect blockchain networks to legacy systems using custom APIs, middleware and blockchain gateways. This lets you take advantage of immutability and decentralisation without disrupting your current operations.
Talk to our service expertsWhy Sphinx
There are dozens of blockchain development companies. Here’s why businesses keep coming back to us, and why their referrals are our biggest source of new clients.
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A blockchain solution that works technically but doesn’t solve your business problem is a failure. We start every project by understanding your goals, your users and your constraints, then we engineer backwards from there.
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We don’t push Ethereum because it’s popular or Hyperledger because it’s enterprise-sounding. We recommend the platform that fits your actual requirements: performance, cost, privacy, scalability and team capability.
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Every smart contract we build goes through multiple rounds of internal testing and a mandatory security audit before deployment. We’ve seen what happens when shortcuts are taken on audits. We don’t take those shortcuts.
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You’ll never get a response of “the blockchain is processing” without an explanation. Our project managers keep you updated at every stage in plain language that doesn’t require a computer science degree to understand.
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Our experience across multiple industries helps us understand the operational challenges blockchain is designed to solve, from traceability and transparency to secure data sharing and automation. That cross-industry experience means we bring insights and patterns from other verticals into your project.
Platforms
We evaluate leading blockchain platforms and recommend the most suitable option based on your project’s requirements, scalability goals, privacy needs and budget. We choose the right one for each project based on your needs, not convenience.
The most widely used smart contract platform. Ethereum’s robust developer ecosystem, security track record and compatibility with Web3 tooling make it the go-to choice for DApps, DeFi and NFTs. We develop on both the Ethereum mainnet and Layer‑2 networks.
When enterprises need a permissioned network where only authorised participants can join, and data can stay private, Hyperledger Fabric is often the right answer. It’s widely used in banking, supply chain and healthcare for inter-organisational workflows.
Polygon is a Layer‑2 scaling solution for Ethereum. It offers significantly lower transaction fees and faster processing, making it ideal for DApps with high transaction volume or projects where user experience matters as much as decentralisation.
Known for its speed, Solana processes thousands of transactions per second at very low cost. It’s a strong choice for high-frequency DApps, gaming platforms and NFT marketplaces where performance is critical.
BSC is popular for DeFi projects due to its EVM compatibility (easy to port from Ethereum), low fees and large existing user base. We build DeFi protocols, DEXs and token projects on BSC.
Avalanche offers fast finality and supports custom subnet creation, meaning enterprises can build their own blockchain networks within the Avalanche ecosystem. Good for complex enterprise DeFi and app-chain architectures.
Purpose-built for payments and cross-border transactions. Stellar is one of the fastest and cheapest networks for moving value between parties, making it ideal for remittance, micro-payments and B2B settlement solutions.
TRON is widely used for high-throughput DApps, content platforms and stablecoin transfers. We build on TRON for projects targeting its large existing user base in Asian markets.
Industries
Blockchain isn’t a one-size-fits-all solution. The problems it solves and the way it’s applied vary significantly by industry. Here’s how we approach blockchain differently for each sector.
Use Cases
Where blockchain is already earning its place, and what it replaces when it does.
Convert physical or digital assets into blockchain-based tokens that can be securely traded, transferred or fractionally owned.
Track products from manufacturing to delivery with an immutable record of every transaction and movement.
Reduce settlement times and transaction costs by eliminating intermediaries in international money transfers.
Enable secure, tamper-proof digital identities that users control themselves.
Create secure patient record systems that improve interoperability while maintaining privacy.
Build blockchain-powered loyalty ecosystems where rewards can be exchanged, traded or redeemed seamlessly.
Establish verifiable ownership of digital assets, memberships, tickets, intellectual property and collectables.
Provide lending, borrowing, staking and trading services without relying on traditional financial institutions.
Allow fractional ownership and simplify property transactions through digital asset representation.
Protect copyrights, patents and digital content through timestamped blockchain records.
Improve transparency and accountability in environmental sustainability programmes.
Enable players to own, trade and monetise in-game assets across decentralised ecosystems.
What We Solve
Web3 represents the next generation of the internet, where users own their identities, assets and data instead of relying on centralised platforms. Blockchain technology serves as the foundation for most Web3 applications, and we help organisations build next-generation Web3 products that combine decentralisation with exceptional user experiences.
User-friendly blockchain applications that operate without centralised control, with the wallet flow and load times real users expect rather than the ones a chain imposes.
Decentralised autonomous organisations that allow communities and stakeholders to participate in governance decisions, with proposal, voting and treasury mechanics encoded in contracts.
Seamless integration with MetaMask, WalletConnect, Phantom, Trust Wallet and other popular wallets, so signing in and signing a transaction are the same simple action.
User-controlled digital identity systems that improve privacy and reduce dependency on centralised providers, with verifiable credentials the holder carries rather than the issuer stores.
Creation of sustainable token ecosystems that drive engagement, governance and long-term growth, with supply, distribution and incentives modelled before a line of contract code is written.
Blockchain-powered virtual experiences, NFT ecosystems and digital asset ownership platforms, built so assets stay portable across the environments that recognise them.
Comparison
Fifteen areas where the two models diverge, compared on the things that actually decide which one a project needs.
| Feature | Public blockchain | Private blockchain |
|---|---|---|
| Access | Open to anyone. | Restricted to authorised users only. |
| Network control | Decentralised, no single owner. | Controlled by a single organisation or consortium. |
| Transparency | Fully transparent; all transactions are visible. | Limited visibility based on permissions. |
| Security | High security through decentralised consensus. | High security with controlled access and governance. |
| Transaction speed | Generally slower due to network-wide validation. | Faster, because fewer nodes participate in validation. |
| Scalability | Can face scalability challenges as the network grows. | More scalable and easier to optimise for business needs. |
| Consensus mechanism | Proof of Work (PoW), Proof of Stake (PoS) and similar. | Practical Byzantine Fault Tolerance (PBFT), Proof of Authority (PoA) and similar. |
| Data privacy | Limited privacy; transaction data is often publicly accessible. | High privacy with restricted data access. |
| Cost | Transaction fees can fluctuate based on network demand. | Lower and more predictable operational costs. |
| Governance | Community-driven governance. | Organisation-driven governance. |
| Trust model | Trust is established through decentralisation. | Trust is established through known participants. |
| Performance | Moderate to high, depending on network congestion. | High performance with low latency. |
| Regulatory compliance | More challenging due to decentralisation. | Easier to implement compliance and audit controls. |
| Best for | Cryptocurrencies, NFTs, DeFi platforms, public marketplaces. | Enterprise applications, supply chain, healthcare, finance and internal business systems. |
| Examples | Ethereum, Bitcoin, Solana. | Hyperledger Fabric, R3 Corda, Quorum. |
Ideal for Web3 applications, cryptocurrency exchanges, NFT marketplaces, decentralised finance (DeFi) and community-driven platforms.
Better suited to enterprises that require security, privacy, compliance, controlled access and high-performance transactions, such as banking, healthcare, logistics and supply chain management.
How We Work
We follow a proven blockchain development process that minimises risk, ensures security, and aligns the final product with your business objectives.
Step 1
What we do: We collaborate with your stakeholders to understand your business model, operational challenges, target users, compliance requirements and long-term goals. Our blockchain consultants evaluate whether blockchain is the right fit for your use case and recommend the most suitable platform, consensus mechanism and implementation approach.
What you get
Step 2
What we do: Our blockchain architects create the complete technical blueprint for your solution, defining network architecture, smart contract structure, data models, transaction workflows, security layers, and integration points with existing applications and third-party services.
What you get
Step 3
What we do: Our developers build secure, efficient and scalable smart contracts using the most appropriate programming language and blockchain framework. Every contract is written following industry best practices and undergoes rigorous testing throughout development.
What you get
Step 4
What we do: We develop the user-facing decentralised application (DApp), ensuring seamless interaction between users and the blockchain network. Our team builds intuitive interfaces, wallet integrations, dashboards, transaction management features and administrative controls.
What you get
Step 5
What we do: Security is embedded throughout the development lifecycle. Our experts conduct extensive audits to identify vulnerabilities, validate business logic, and ensure smart contracts function exactly as intended before deployment.
What you get
Step 6
What we do: After successful testing, we deploy your blockchain solution to production environments and provide ongoing monitoring, maintenance, upgrades and technical support to ensure long-term reliability and performance.
What you get
How We Build It
We engineer blockchain solutions using a proven, enterprise-grade stack chosen for security, performance and long-term maintainability, matched to your project’s needs.
Business Impact
For the right use cases, blockchain solves real problems that traditional software can’t solve as well. Here’s what businesses actually gain from blockchain.
Every transaction on a blockchain is recorded and visible to authorised parties. No one can alter a record after the fact. This is transformative for any business where multiple parties need to trust shared data: supply chains, financial settlements and real estate transactions.
Smart contracts replace the role of banks, lawyers, brokers and clearinghouses in many transaction types. Fewer middlemen mean faster processing and lower fees.
Data stored on a blockchain is distributed across many nodes. There’s no single server to hack. Altering data on a blockchain requires changing records on thousands of nodes simultaneously, which makes it practically impossible.
Every action is timestamped and recorded permanently. For regulated industries like healthcare, pharma and finance, this creates an audit trail that satisfies regulators without expensive manual record-keeping.
Business rules encoded in smart contracts execute automatically when conditions are met, with no human processing, no delays and no errors from manual entry.
Blockchain-based payment systems allow cross-border transactions in minutes, at a fraction of the cost of traditional wire transfers.
How much does it cost?
Wondering how much it costs to build a blockchain application?
Every blockchain project is unique. Costs vary based on the blockchain platform, smart contract complexity, integrations, security requirements and the features you need. Answer a few questions about your project goals, preferred network and functionality to get a realistic estimate without the guesswork.
Try our app cost calculatorHow We Engage
Every blockchain initiative has different requirements, timelines and levels of complexity. We offer three transparent engagement models that help businesses build secure, scalable blockchain solutions while maintaining complete visibility, IP ownership and project control.
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A predefined scope, timeline and budget designed for blockchain projects with clearly defined requirements. Ideal for MVPs, smart contract development, token creation, NFT marketplaces and proof-of-concept solutions where predictability and cost certainty are critical. You know exactly what will be delivered, when, and what it will cost.
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A flexible, sprint-based engagement model that supports evolving blockchain products. Perfect for DeFi platforms, Web3 applications, enterprise blockchain solutions and decentralised ecosystems where requirements change based on user feedback, regulatory updates or market demands. Prioritise features continuously while keeping full transparency over progress and costs.
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A fully managed team of blockchain developers, smart contract engineers, solution architects, UI/UX designers, QA specialists and project managers working exclusively on your project. Ideal for enterprises and startups seeking long-term blockchain expertise, rapid scaling and complete technical ownership without the overhead of hiring in-house.
Book a 30-minute blockchain consultation.
Expert Insights
The biggest blockchain mistake we see is teams adopting it for the hype rather than the fit. Blockchain earns its place only when several parties need to trust the same data without a middleman. Get that judgment right first, design for security and governance from day one, and the technology delivers. Skip those steps and you’ve just built a slower, more expensive database.
Why Choose Us
Sphinx has completed 16 successful years in the industry, helping businesses with technology and digital transformation, including AI-powered solutions across major industry verticals.
We have a dedicated and reliable team of AI engineers, ML scientists, data engineers, and MLOps specialists covering every role in the AI development lifecycle.
We have delivered more than 1,500 solutions through a results-driven approach, many to recurring clients who keep expanding their AI capabilities with us.
We have a dedicated in-house team, experienced and skilled across AI development, software engineering, QA, DevOps, and cloud infrastructure.
We are trusted by 750+ clients for best-in-class AI solutions at competitive rates, with the delivery accountability enterprise clients demand.
Our client-centric approach and high-calibre AI engineering, built on current models and frameworks, have made us a trusted partner for businesses building AI.
Connect with us
Leverage blockchain technology to improve transparency, automate processes and strengthen security, with a trusted development partner by your side.
Everything you need to know about building on a blockchain with us. Can’t find your answer? Talk to us.
It depends on what you’re building. As a rough guide, a blockchain MVP typically runs $30K to $80K, while enterprise-grade builds start around $150K+. What really moves the price is how complex the app is, the features you need, the platform you pick, how much smart contract work is involved, and what it has to connect to. A bigger build also needs a bigger team. For an accurate figure, it’s best to get your specific idea scoped and priced.
Blockchain makes business records hard to tamper with and easy to audit. Smart contracts handle steps that would otherwise need a manual sign-off or a middleman. Payments and transfers can settle faster because you’re not waiting on a third party to verify them. If your business needs a trustworthy record of who did what and when, that’s the main reason to look at it.
Most companies come to it when they want a shared record that several parties can trust without a central referee in the middle. It can tighten data security and cut down on work that would otherwise bounce between systems and inboxes. It also makes tracing something back to its source easier. If your process involves stakeholders who don’t fully trust each other’s data, that’s usually where it pays off.
A decentralised app, or DApp, runs on a blockchain instead of a single company’s own server. The real difference is who’s in control. With a regular app, whoever runs the server controls the data and can change it. With a DApp, the logic and records sit on the chain, so no single party can quietly alter them, and users deal with the system directly.
Yes. You usually don’t have to rebuild the app from scratch. In most cases you can add blockchain features on top of what you already have, things like secure transactions, digital asset handling, smart contracts or decentralised storage, while your current app and infrastructure keep running.
Yes, and that’s a common place to start. Our consultants look at your goals, the problems you’re trying to solve, and your technical setup before suggesting anything. Sometimes blockchain is the right call, sometimes it isn’t, and we’ll say so either way. The first consultation is free, and if it does fit, we’ll recommend which platform and approach to use.
Blockchain has a few protections built in. Data is copied across many nodes instead of sitting in one place, and the network has to reach agreement before anything new is added. Once a transaction is on the chain, it can’t be quietly edited. The catch is that most losses don’t come from the chain itself: Chainalysis reported around $2.2 billion stolen in crypto in 2024, the bulk of it through application-level flaws, compromised keys and unaudited smart contracts. That’s exactly why we put every contract through independent security audits before launch.
It depends on the scope. An MVP can sometimes be ready in a few weeks, while a larger enterprise system can take several months once you’ve designed it, built and tested the smart contracts, handled the integrations, and deployed. The platform you choose and the amount of integration work usually decide where you end up.
Yes, we do this a lot. We help founders turn an idea into a working product they can put in front of real users quickly and without overspending. That way you can test the concept, get real feedback, and show investors something concrete before committing to the full build.
