What services does Rumble Fish offer?

According to its public information, Rumble Fish offers: Development.

Which blockchains does Rumble Fish work with?

Rumble Fish works with Ethereum, Solana, Polygon, BNB Chain, and Avalanche.

Which smart contract languages does Rumble Fish use?

Rumble Fish works with Solidity and Rust.

Where is Rumble Fish based?

Rumble Fish is headquartered in Poland.

Is Rumble Fish verified on smart-contract.com?

Not yet. This listing was compiled from public information and Rumble Fish has not claimed it or gone through the vetting process of smart-contract.com.

How can I get a quote from Rumble Fish?

Describe your project once on smart-contract.com: you receive comparable quotes from vendors that match it, in the same format. Development and audit are always entrusted to two independent companies.

Vendor

Rumble Fish

Kraków software house with a blockchain practice: smart contracts, DeFi, dApps, bridges

Public information

About

Rumble Fish is a bespoke software development company registered as Rumble Fish Poland sp. z o.o. in Kraków, Poland. Alongside cloud, fintech and AI work, it runs a dedicated blockchain practice covering smart contract development, DeFi development, dApps, crypto wallets, NFT systems, zero-knowledge proof development and XRPL and Stellar products. Its smart contract offer includes custom contract architecture (multi-signature treasuries, escrow, governance and DAO infrastructure, cross-chain bridges), DeFi protocols such as AMMs, lending and yield mechanisms, advanced NFT and token contracts, and gas optimization through storage packing, proxy patterns and assembly-level work. It deploys on Ethereum and layer 2 networks, Solana, Polygon, XRPL, BNB Chain and Avalanche. The stated process runs from business logic architecture to security-focused development with internal reviews, unit, integration and stress testing, then deployment with monitoring and post-launch support. Published case studies include a protocol port to Stellar Soroban, a token bridge to Ethereum and an EVM debugging tool.

At a glance

Polish company based in Kraków (Rumble Fish Poland sp. z o.o.)
Smart contract, DeFi, dApp, wallet and zero-knowledge development
Builds bridges, DAO governance, escrow and multi-signature treasury contracts
Also works on XRPL and Stellar Soroban products
Publishes case studies of its blockchain projects

Services: Development
Blockchains: Ethereum
Solana
Polygon
BNB Chain
Avalanche
Languages: Solidity, Rust
Headquarters: Poland
Website: rumblefish.dev(opens in a new tab)

Rumble Fish: frequently asked questions

What services does Rumble Fish offer?: According to its public information, Rumble Fish offers: Development.
Which blockchains does Rumble Fish work with?: Rumble Fish works with Ethereum, Solana, Polygon, BNB Chain, and Avalanche.
Which smart contract languages does Rumble Fish use?: Rumble Fish works with Solidity and Rust.
Where is Rumble Fish based?: Rumble Fish is headquartered in Poland.
Is Rumble Fish verified on smart-contract.com?: Not yet. This listing was compiled from public information and Rumble Fish has not claimed it or gone through the vetting process of smart-contract.com.
How can I get a quote from Rumble Fish?: Describe your project once on smart-contract.com: you receive comparable quotes from vendors that match it, in the same format. Development and audit are always entrusted to two independent companies.

Where this information comes from

This listing was compiled from the public pages below and last reviewed on September 24, 2026. The company has not claimed it yet, is not a partner of smart-contract.com and has not been vetted.

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