Interchain Connectivity Companies

Allbridge is a cross-chain bridge protocol that provides tools for transferring assets between different blockchain networks. Its offerings include Allbridge Core, which facilitates stablecoin swaps between EVM and non-EVM blockchains using liquidity pools, and Allbridge Classic, which supports a broader range of token transfers, including both native and wrapped assets. The protocol is designed to enable interoperability across multiple chains and offers infrastructure for integrating cross-chain functionality into other applications. It also provides developer resources, including an SDK and documentation, to support third-party integrations.

Butter Network is an omnichain interoperability protocol that facilitates cross-chain asset swaps and messaging across multiple blockchains including Bitcoin, Ethereum, BNB Chain, Solana, Tron, Avalanche, Polygon, and XLayer. The protocol employs a zero-knowledge refactored light client that uses zero-knowledge proofs to verify cross-chain transaction data without requiring full node infrastructure, thereby reducing trust assumptions in the bridging mechanism. The system exposes two primary smart contract functions: TransferOut and TransferIn, which enable developers to send and receive verified cross-chain messages and assets programmatically. Butter Network is designed for DeFi developers and projects building omnichain applications such as cross-chain swaps, lending protocols, and GameFi systems. The protocol operates as a decentralized application within the MAP Protocol ecosystem and provides a consumer-facing product for cross-chain asset exchange.

Counterstake is a fully decentralized, permissionless cross-chain bridge protocol that enables asset transfers between Ethereum, BSC, Polygon, and the Obyte network. The protocol operates without admins, custodians, multisig participants, or central relays; transfers are facilitated by open-participation 'assistants' who front liquidity and are reimbursed on-chain. There are no protocol fees and no token requirement to use the bridge, though a CS governance token exists for protocol governance. The codebase is immutable and non-upgradable, and Ethereum, BSC, and Polygon contracts have been audited by Dedaub. Counterstake is developed under the Obyte ecosystem and has been live since July 2021, targeting users and developers seeking trustless cross-chain transfers without reliance on centralized intermediaries.

Gravity Bridge is a decentralized, open-source blockchain bridge that connects Ethereum and Cosmos ecosystems. It operates as a standalone Cosmos-based chain and enables bidirectional transfer of ERC-20 tokens and Cosmos-native assets. The bridge uses Inter-Blockchain Communication (IBC) protocol, allowing other Cosmos projects to access Ethereum assets such as DAI and USDC without operating independent bridge infrastructure. Cosmos assets like ATOM can be represented as ERC-20 tokens on Ethereum, enabling compatibility with Ethereum DeFi protocols including Uniswap. The system is governed by a validator set and includes an auction module for decentralized token distribution. The project maintains open-source code on GitHub and serves both end users and Cosmos ecosystem developers requiring cross-chain liquidity and asset interoperability.

Jumper is a multi-chain liquidity aggregator built on the LI.FI protocol that provides asset swapping and bridging functionality across multiple blockchains through a unified interface. The system aggregates liquidity routes from multiple bridges and decentralized exchanges, evaluating paths based on cost, speed, and available liquidity to determine optimal cross-chain transfer routes. The platform is designed to enable users to move assets between chains without directly interfacing with individual bridge or DEX protocols. The system has completed four independent security audits and supports a range of blockchains, bridges, and decentralized exchanges. Additional features include portfolio tracking and yield-earning mechanisms accessible through the same application interface.

Mayan is a cross-chain bridge and swap protocol built on Solana that facilitates asset transfers across multiple blockchains. The system uses an auction-based mechanism in which solvers compete to fulfill user transfer orders, with the goal of optimizing rates and settlement time. The protocol operates on an intent-based bridging model where users submit transfer requests and competing solvers bid to execute them. The architecture is non-custodial, meaning users retain control of assets throughout the transfer process. The protocol has completed third-party security audits. Integration points include aggregator platforms that route transactions through the protocol.

Meson Finance is a cross-chain bridge and swap protocol that facilitates asset transfers across 60+ blockchains, including Ethereum, Arbitrum, BNB Smart Chain, Solana, Tron, and various Layer 2 networks. The protocol supports stablecoin transfers (USDC, USDT) and other assets through a non-custodial architecture. Key features include direct withdrawal functionality from centralized exchanges to on-chain networks, reducing intermediary steps for users moving funds between custodial and decentralized environments. The protocol also integrates fiat-to-crypto conversion through partner services. Meson functions as a connectivity layer for crypto-to-crypto, exchange-to-chain, and crypto-to-fiat transaction flows. The system serves retail users, developers requiring cross-chain integration, and applications needing multi-chain liquidity routing. The protocol operates at meson.fi and has been integrated into networks including OKX X1.

Octus Bridge is a DAO-governed cross-chain bridge protocol that enables token transfers between Ethereum and other supported blockchains. It uses Everscale as a settlement layer to facilitate transactions. The protocol is designed with a decentralized architecture that relies on a network of relayers, with eligibility based on holding its native BRIDGE token. Governance decisions are executed through on-chain smart contracts. The project is open source and has undergone third-party security auditing. It is developed by Broxus, a blockchain development team associated with the Everscale ecosystem. The BRIDGE token serves governance and utility functions within the protocol.

Orbit Chain is a cross-chain blockchain project built around its Orbit Bridge, which enables asset and data transfers across multiple heterogeneous blockchain networks. The protocol operates its own chain with a governance token (ORC) that holders use for on-chain voting, staking, and delegation to shape protocol decisions. Orbit Bridge supports connections to networks including XRP and a range of EVM and non-EVM chains, with a validator set drawn from partner organizations.

Pontis is a cross-chain bridge focused on the Bitcoin ecosystem, enabling the transfer of Bitcoin-native assets including Runes and Ordinals between the Bitcoin network and Stacks (STX) or EVM-compatible chains. The protocol uses a decentralized multi-signature security model with 15 trusted nodes requiring a 9-of-15 consensus threshold, eliminating single points of failure in the bridging process. Its vault-based architecture receives incoming BTC transactions, bundles them, collects multi-party signatures, and then executes transfers to or from STX and EVM bridge contracts. The platform is designed for DeFi users and developers operating within the Bitcoin ecosystem, and its node operators and partners include projects such as Asigna, Bitflow, Hermetica, Leather, Liquidium, StackingDAO, Xverse, and Zest Protocol.

Portal Bridge is a cross-chain asset bridge that facilitates token transfers across more than 30 blockchain networks. The system supports transfers of USDC, ETH, SOL, and other tokens. Portal Bridge is built on the Wormhole messaging protocol and uses Wormhole's cross-chain infrastructure to execute token transfers and USDC bridging operations. The bridge provides a non-custodial swap interface, allowing users to move assets between chains without relying on a centralized intermediary to hold funds. Documentation and support resources are integrated within the Wormhole ecosystem, reflecting the close architectural relationship between Portal Bridge and the underlying Wormhole protocol rather than operating as an independent system.

Rainbow Bridge is a cross-chain bridge protocol enabling token transfers between Ethereum, NEAR Protocol, and Aurora (an EVM-compatible layer built on NEAR). Users connect wallets such as MetaMask, Rabby, Brave, or Coinbase Wallet to initiate transfers, with the app providing a transfer history scanner and address-routing options. The protocol is closely associated with Aurora, NEAR's EVM environment, and serves retail users moving assets across these three networks. The site includes explicit security warnings about wallet compatibility with the Aurora network, reflecting a focus on user-safety transparency.

Rosen Bridge is an open-source cross-chain asset transfer protocol built around Ergo as a central hub, enabling bridging between blockchains including Cardano, Bitcoin, and Ethereum. Its architecture uses two layers of participants: Watchers, who monitor origin chains and report bridge events on Ergo, and Guards, a federated multisignature group who process and execute transfers. Security is reinforced through collateral requirements in the native RSN token and ERG, cold storage mechanisms, and a Proof of Event incentive scheme that rewards honest participation and penalizes fraud. The protocol is designed to minimize smart contract exposure on bridged chains, supporting modular integration of new networks via independent chain-specific modules. RSN serves as the utility token underpinning collateral, staking, and reward distribution across the system.

Sig.Network is a cross-chain messaging and execution layer that enables smart contracts deployed on one blockchain to execute native transactions on other blockchains without bridging or wrapping assets. The core architecture uses a decentralized MPC validator set to produce threshold signatures, converting cross-contract calls into standard signed transactions that are submitted directly to destination chain mempools, supporting Ethereum, Solana, Polkadot, and Bitcoin. The primary users are DeFi application developers who want to access liquidity and assets across ecosystems from a single deployment, without migrating contracts or adopting new tooling. Sig.Network launched its Ethereum mainnet in March 2025 and Solana mainnet in August 2025, with Polkadot and Bitcoin integrations on the roadmap.

Tetrix is an ambitious ecosystem that connects businesses of all sizes in search of the best opportunities to explore blockchain technology. Their platform helps drive efficiency, collaboration and innovation across the entire web3 spectrum, providing secure solutions for their users. By helping organisations move away from outdated technologies and onto a more efficient and innovative path, they are striving to empower each user with increased freedom and control over their data. Their mission is to bridge the gap between early adopters to advanced users so that everyone can benefit from blockchain capabilities without compromising security or privacy. They envision a future where businesses have access to transparent protocols which enable them to make informed decisions about how they should move forward with digital assets.