Cumulo

Cumulo is a validator and blockchain infrastructure provider that grew out of the Cosmos ecosystem and now covers EVM-compatible chains, Cosmos SDK application chains and modular networks, running public RPC, API, archive node and snapshot services alongside block signing.

Its operations are built to be checkable: it publishes periodic transparency reports for each chain it serves, listing upgrades, governance votes, signing rates and slashing events, with figures pulled automatically from public endpoints so third parties can reproduce them. Signing uses a single active signer with a manually managed offline backup on mainnet, and Horcrux threshold signing across two nodes on testnet. In January 2026 a governance proposal admitted it as a validator on the XRPL EVM mainnet, and it subsequently voted on that chain's 9.0.0 upgrade.