LimeChain

LimeChain is a Bulgarian blockchain development and Web3 infrastructure company founded in 2017 and headquartered in Sofia, Bulgaria. The company focuses on protocol engineering, decentralized application (dApp) development, and developer tooling. The company was Profiled in Forbes and in 2024 was ranked in the Deloitte Technology Fast 500 EMEA for revenue growth.

History

LimeChain was founded in 2017 in Sofia, Bulgaria. The company initially focused on protocol-level engineering, SDKs, and blockchain infrastructure.

Early clients included Procter & Gamble, Raiffeisen Bank, and Propy. By 2022, the team had grown by 50% year over year to more than 100 employees. The company subsequently expanded to over 150 team members and established a presence in the United Kingdom.

In late 2019, LimeChain joined the Hyperledger project and the Linux Foundation. In January 2020, the company was admitted as one of eight Hyperledger Fabric Certified Service Providers worldwide. That year, LimeChain also launched LimeLegal, a joint venture with Progressive Lawyers focused on blockchain legal advisory services.

In 2024, LimeChain was ranked 327th in the Deloitte Technology Fast 500 EMEA. One of the company's co-founders was accepted into the Endeavor Network, a global community supporting high-impact entrepreneurs. The company was profiled in Forbes in December 2024, in an article on the convergence of AI and blockchain, and again in December 2025, in an article on enterprise blockchain adoption.

Notable clients and projects

LimeChain's clients have included Procter & Gamble, which used the company to implement smart contracts for its claims management system, and IMVU, whose in-game token developed by LimeChain received a no-action letter from the U.S. Securities and Exchange Commission in 2020. The company also built Project Diamond, an institutional digital asset platform for Coinbase Asset Management, deployed within the Abu Dhabi Global Market regulatory sandbox.

Services and Technology

LimeChain's work covers both public blockchain networks and enterprise environments. Technical contributions have included smart contract systems, cross-chain bridges, and zero-knowledge proof research. According to Forbes, the company's enterprise approach emphasizes audit, compliance, and integration as part of blockchain deployments for institutional clients.

Ecosystem Contributions

LimeChain has contributed open-source software and infrastructure to several blockchain networks.

Ecosystem

Description

Type

Ethereum/Layer 2

RollupCodes, a public reference tool for comparing Ethereum scaling technologies; research funded by grants from StarkWare and Arbitrum

Developer tooling

Hedera Hashgraph

Built components of Hedera's token and developer services; co-built Hashport, a bridge allowing assets to move between the Hedera, Ethereum, and Polygon networks

Protocol development

Polkadot

Fruzhin, an alternative implementation of the Polkadot network software written in Java, funded by the Polkadot Pioneers Prize; additional Web3 Foundation grants for protocol research

Protocol development

The Graph

Matchstick, an open-source testing tool for developers building on The Graph data indexing protocol, later adopted into the project's official documentation

Developer tooling

EBSI

Part of an EU-funded Bulgarian consortium that built the country's node of the European Blockchain Services Infrastructure, working on digital identity verification

Integration

LimeAcademy

LimeAcademy originated in 2018 as a blockchain developer training initiative created by LimeChain in partnership with Telerik Academy. In 2021, LimeChain relaunched LimeAcademy as a standalone program for training experienced software developers in blockchain development.

Industry Affiliations and Recognition

LimeChain is a member of the Linux Foundation and a Hyperledger Fabric Certified Service Provider. A LimeChain co-founder served as a maintainer of the Baseline Protocol, an open-source enterprise synchronization initiative under the Ethereum OASIS Open Project, and the company developed a proof-of-concept integrating Google Sheets with Microsoft Dynamics 365 using the protocol. The company has received grants from the Web3 Foundation, the Arbitrum Foundation, and StarkWare, which named LimeChain the first recipient of its $1 million OP_CAT Research Fund in 2024. LimeChain co-founded BuildRooms, a Web3 hub in Bulgaria.

A co-founder is a member of the Endeavor global entrepreneur network. In 2021, LimeChain team member Zhivko Todorov was named to the Forbes Bulgaria 30 Under 30 list in the Business category.

See also

  • Hedera Hashgraph
  • Hyperledger
  • Polkadot (Cryptocurrency)
  • Solana (blockchain platform)
  • Enterprise Ethereum Alliance