Who Are the Top Blockchain Service Providers?

Written by Max Crawford

Published on September 24, 20258 min read

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Every enterprise in finance is exploring crypto in 2025, and that’s a result of strong tailwinds. Businesses have finally gotten regulatory clarity on crypto with the recent passage of the Genius Act. In tandem, stablecoins have exploded in popularity and now process higher payment volumes than Visa. Crypto IPOs have soared past expectations.

In the midst of that buzz and market traction, enterprises are flocking to blockchain, but building on crypto infrastructure is hard work and comes with unique challenges. Blockchain is designed to support decentralized, not necessarily large volumes of data for businesses processing millions of transactions. The devops and operational overhead from building out all of your blockchain infra yourself can be a daunting task and a major roadblock to growth when operating at scale.

The good news is that there is a large variety of 3rd party service providers that make building in the space easy.

What Is a Blockchain Service Provider?

Blockchain service providers are companies that set up and manage blockchain infrastructure for others. They give businesses the tools and expertise to build and run blockchain applications. This lets those businesses move faster, cut down on technical overhead, and focus on their products and customers.

Think how AWS powers the current generation of internet companies, or how software like Toast and OpenTable supports the restaurant industry. Blockchain service providers fulfill a similar role and streamline the process of building onchain apps.

At a high level, blockchain service providers generally fall into the following categories:

• Infrastructure & API providers: These providers offer node hosting, RPC endpoints, enhanced APIs, and a range of devtools, so you can easily connect to blockchain networks, whether fetching realtime data, broadcasting user actions to the network, monitoring user activity onchain, and much more.

• Rollups-as-a-service: Some businesses need their own blockchain, which requires significant protocol expertise and operational overhead. There are numerous providers that can partner with businesses to advise them on their rollup stack, and run it on behalf of the business.

• Enterprise solutions: These providers straddle Web2 and Web3 and help large businesses navigate the transition onchain. Think of these as consulting arms or product lines within some of the biggest Web2 software businesses.

• Wallet infrastructure: Creating an app onchain is one thing, but how do you handle your users? You need to think about managing onchain addresses, authenticating users, and managing their assets. There are numerous providers that offer out-of-the-box solutions that handle all of that functionality and can plug directly into your application.

• Specialized services: Beyond those overarching categories, there are a lot of specialized service providers in crypto that can handle a wide variety of needs and use cases, whether that is pulling real-world data onchain, passing data or assets from one blockchain to another, auditing and security firms, and more.

With that overview out of the way, let’s take a closer look at some of the best players in each category.

Infrastructure Service Providers

These service providers help connect businesses to blockchain networks by providing real-time, performant data for everything happening onchain as well as helping businesses broadcast transactions back to the network. Most service providers in this category support dozens or hundreds of chains, and the space is dominated by a handful of players, including:

Alchemy

Alchemy powers $150B in transactions annually and supports the majority of the biggest apps in crypto. We separate ourselves from the competition through performance: we consistently deliver sub-25ms response times at 99.99% availability, operating at a level of reliability and speed that other providers struggle to match.

Not only do we offer that performance across 50+ blockchains, but we offer a white glove experience with a customer product engineering team that partners directly with customers to help with integrations, support, and even building custom features.

QuickNode

QuickNode offers one of the widest chain coverages as an infra provider, with over 75+ supported networks. Delivering 72ms latency and 99.9% uptime, QuickNode is one of the most reliable models on the market and handles 200B API requests per month.

Like Alchemy, QuickNode’s bread-and-butter business is their RPC offering, but in addition, they offer a range of devtools for building onchain apps, like enriched data APIs, block streams, and more.

Ankr

Ankr is a decentralized infra provider that is itself a DAO with a token, so decision making and strategy is spread across token holders. For users who want maximal decentralization, Ankr might be a compelling infra service provider with support across 70+ chains.

As one of the first DePin (decentralized physical infrastructure) networks, Ankr leverages its ANKR token to enable a two-sided marketplace, where developers pay ANKR tokens to make requests, and node operators can earn those tokens for serving requests.

Chainstack

Chainstack caters to enterprises needing custom configs, trading firms, and MEV extractors. Their infra offerings span a range of tiers, from accessing its global node network to running dedicated private nodes for businesses. Chainstack even offers trader-specific nodes and other tooling that are optimized for high-frequency trading and landing transactions quickly, useful for DeFi and other apps where delays in milliseconds can be costly.

Rollup Service Providers

Building mainstream apps on Ethereum can be costly: it comes with high transaction costs that apps then often have to pass on to users, limiting the types of applications that are actually feasible. Those fees eat into an app’s revenue, or, if passed on to the user, then limit the types of actions users are actually willing to take onchain.

The solution to that problem is to move the app off Ethereum and onto a rollup, a scaling solution that has grown in popularity over the past few years. In that time, we’ve seen apps deploy onto existing rollups or even launch their own rollup altogether. In most cases, those apps partner with a rollup service provider that makes deploying a custom chain an immediate option, removing years of protocol development from the product cycle.

Rollup Frameworks

When launching a rollup, builders first choose which rollup framework they want to leverage, and there are 3 main rollup frameworks on the market today, each with their own tradeoffs.

Arbitrum Nitro (Orbit)

Arbitrum Nitro is an optimistic rollup framework with performance enhancements. With ultra-low transaction fees, fast block times, and full EVM compatability, Arbitrum Nitro is well-suited for high-throughput apps with diverse transaction requirements.

Optimism OP Stack

The OP Stack is an open-source optimistic rollup framework that is ideal for apps looking for a balance of performance and compatibility. With full EVM compatibility, low fees, Ethereum-backed security, and access to Optimism’s Superchain, Optimism is one of the most popular all-around options on the market today.

zkSync ZK Stack

The ZK stack is a zero-knowledge rollup framework. Unlike optimistic rollups that have a challenge window where users can dispute transactions, the ZK stack offers instant transaction finality, but that comes with the tradeoff of higher compute costs (i.e. higher gas fees) and a few potential limitations when it comes to EVM compatibility.

Rollup as a service providers

Once builders align on what framework they want to launch their app with, they have to decide whether to operate that rollup themselves, or go with a rollup-as-a-service provider that can handle that operational burden for them.

Here are 3 of the top rollup services on the market today:

Alchemy Rollups

Alongside its infrastructure services, Alchemy offers a rollup-as-a-service product that powers the biggest rollups on the market today, including World, Degen, and more. With support across all 3 frameworks, and tightly coupled integrations with Alchemy’s full stack product suite, Alchemy rollups enables you to deploy a rollup in less than 2 minutes with every devtool you need to operate at scale and operates that rollup for you.

Conduit

Conduit supports a wide variety of rollup customization, including framework support for OP Stack, Arbitrum Orbit, and Agglayer CDK, settlement support for Ethereum, Base, Arbitrum, or a custom chain, as well as a variety of data availability options. Conduit handles rollup deployments, upgrades, and ongoing monitoring and operations, and it also offers a rollup integrations marketplace for any functionality builders need that isn’t available out of the box.

Caldera

Caldera offers a modular rollup solution, allowing apps to pick their framework, their settlement layer, their data availability layer, and more. In addition, Caldera also offers Metalayer, a bridging solution for 100+ rollups, easily connecting new rollups to every Caldera-deployed rollup, which unlocks cross-rollup use cases and unified liquidity.

Enterprise Blockchain Providers

With crypto’s growth in the past few years, it’s no surprise that large organizations are exploring onchain products to avoid disruption. To support them, many institutional Web2 firms have spun up blockchain services to support enterprises exploring growth avenues onchain, including permissioned blockchains. Some of those service providers include:

AWS Managed Blockchain

Amazon makes blockchain accessible through their Amazon Managed Blockchain service. Whether building on a private or public blockchain, AWS offers a suite of familiar devtools and indexed data that abstracts away Web3’s complexity, making it easy for companies already integrated with AWS to expand onchain.

Microsoft Azure Blockchain

While Microsoft discontinued their blockchain-as-a-service product that enables businesses to launch their own chain, Azure still offers several Web3 products that simplify building onchain, including issuing and verifying decentralized identity credentials, tamperproof data storage in trusted execution environments (TEEs), Azure onchain ecosystem partners, and more.

Kaleido

Kaleido is a enterprise blockchain service provider that enables businesses to customize and launch their own blockchain, whether that’s a public chain, a private one, or an appchain. Trusted by enterprises across dozens of industries, Kaleido offers custom services for not only the chain infra, but also all of the middleware, asset management, devtools, and analytics enterprise businesses need to build onchain.

Wallet Infrastructure Providers

Alongside service providers that handle infrastructure, custom chains, or enterprise needs, one rapidly growing service is around wallet infrastructure: services that handle user onboarding, authentication, and account management.

These services can plug in directly to a business’s application and are often totally invisible to end users. Popular service providers in this category include:

Alchemy Smart Wallets

Alchemy's wallet infrastructure enables business to rapidly onboard and activate users. With a sophisticated tech stack, we let businesses onboard users with just an email address or phone number—removing seed phrases from the user experience—and then offering a greatly improved UX on top, including social recovery so users can’t get locked out of their account, gas sponsorship so users don’t pay transaction fees, transaction bundling to lower gas fees paid in aggregate, and powerful customizations, such as transaction limits, multi-sig, and more.

Fireblocks

Fireblocks offers enterprise-ready wallet solutions, with product offerings for businesses that want to custody and manage their user accounts and for businesses that want to enable users to control their own accounts. For more centralized business models, Fireblocks also offers treasury management tools, so apps can safely and securely manage and control user assets.

Turnkey

Turnkey is a powerful backend service provider that powers a lot of user management needs behind the scenes. Their API-first approach easily integrates with apps and facilitates things like social login, key management, transaction signing, permission/behavior policies, and more.

Specialized Service Providers

Beyond the standard service providers listed above, there are a range of specialized blockchain service providers on the market that handle a variety of needs for crypto-specific complexities that simply don’t exist in the world of Web2.

This list is far from exhaustive, but some of those categories include things like pulling real-world data onchain, enabling data to flow between blockchain networks, specialized auditing/security services, and more. Here are a handful of specialized players you should be familiar with:

Chainlink

Chainlink offers an oracle network that solves an important data problem for blockchain: how do you pull verified and accurate real world data onchain? Many of the most popular apps onchain rely on Chainlink’s price fees for liquidations and trading. Without Chainlink, smart contracts remain isolated from real-world data, and this kind of service provider helps connect capital markets to onchain networks, enable prediction markets, and dozens of other use cases.

Wormhole

Each blockchain network can exist in a vacuum, and different networks weren’t necessarily designed to talk to each other and pass data between them. Services like Wormhole solve that problem and enable cross-chain communication and crucially enable assets to move from one network to another, deepening liquidity and enabling cross-chain use cases.

CertiK

Crypto apps come with their own security risks: when assets with real world value are stored in smart contracts, that surface area becomes ripe for exploitation, and onchain hacks are common. To fight those exploits, a new generation of auditing and security firms have emerged that specialize specifically in smart contract security. CertiK is a prime example of a firm that offers a suite of tools to secure businesses building onchain, whether auditing protocols or contracts, simulating attacks, creating bug bounty and incident response programs, and more.

A Service For Every Need

The crypto landscape has matured significantly in the past few years, and now there’s a blockchain service provider for every need. For individual businesses, success comes down to picking the right provider, evaluating their offering against the competition, and partnering with providers that can grow alongside you as you scale.

The providers listed in this post have proven themselves through years of operation and processing billions in transaction volume and handling millions of users. The infrastructure is ready. There are services that make building onchain easy. The question is: what will you build with those services?