List of Shared Sequencer companies in Web3 (2026)

Lighthouse functions as a decentralized network connecting rollups with searchers to capture MEV opportunities. The system processes MEV bundles from searchers who identify profitable trading strategies across rollups. Lighthouse implements a competitive bidding mechanism for bundle inclusion, enabling rollups to collect fees from executing winning bundles. The network supports multiple MEV strategies including arbitrage, liquidations, and cross-rollup opportunities. By creating revenue beyond transaction fees, Lighthouse provides rollups with a sustainable economic foundation.

Alpha Engine implements a unified growth platform for rollups combining revenue generation, security, and network connectivity solutions. The system integrates Radius, Symbiotic, and Avail technologies to create sustainable economics. Alpha Engine generates revenue through MEV capture, utilizes shared security infrastructure to reduce costs, and facilitates cross-rollup interoperability. The architecture supports multiple rollups simultaneously, creating an interconnected ecosystem with enhanced liquidity flow. By addressing fundamental economic challenges, Alpha Engine provides rollups with essential tools for long-term sustainability and growth.

Rome Protocol is a system that deploys Ethereum rollups as separate Neon EVM instances on Solana, using Solana as an execution layer and shared sequencer for rollup transactions.

Nexus is a based sequencing architecture that uses Solana to sequence transactions for Ethereum L2s. It adds fast ordering and atomic composability for Rome L2s and standard composability for non‑Rome L2s while maintaining Ethereum as the settlement layer.