
Evercity
Evercity is a Berlin-based company that was founded in 2018. It streamlines and automates the issuance of sustainable finance instruments. The company's primary goal is to make green finance more accessible, transparent, and cost-effective, particularly for small and medium-sized enterprises (SMEs). Its core offering is a green debt and carbon origination platform, a SaaS solution that automates the entire lifecycle of sustainable finance, from structuring and issuance to monitoring and reporting.
The platform integrates with IoT and satellite technology to collect real-world data, which is used to verify the performance of green projects and prevent "greenwashing." A key feature is the ability to issue fully traceable digital assets, including carbon credits and sustainability-linked bonds.
Evercity's platform leverages Hedera Guardian to create a verifiable and immutable record of a project's environmental impact, from initial funding to the final reporting of outcomes, in order to provide trust and transparency to the sustainable finance market.
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Ledger is a Paris-based digital assets security firm. Its core products are its hardware wallets, most notably the Ledger Nano series. These devices are designed to store private keys in a secure, offline environment, protecting them from online threats.
Ledger also provides the Ledger Live application, an all-in-one platform that allows users to manage digital assets, buy, sell, and swap cryptocurrencies, and access a wide range of DeFi and Web3 services. For institutional clients, Ledger Enterprise provides a comprehensive, customizable infrastructure for safeguarding digital assets at scale.
The Ledger Nano S Plus and Nano X hardware wallets support Hedera’s HBAR token, allowing users to securely store their assets. Through the Ledger Live app, users can create a Hedera account, manage their HBAR, and interact with the Hedera ecosystem. This integration also extends to staking, as users can connect their Ledger device to third-party wallets such as HashPack to participate in HBAR staking.

SEUN is a technology company developing an Internet of Things (IoT) device for monitoring water data. Its mission is to provide a secure and stable data management system to protect and prolong the life of large infrastructure that relies on water, such as hospitals, cooling towers, and well systems.
The core of SEUN's service is its customizable IoT device that can be used to monitor virtually any liquid. The platform is designed to provide real-time data and insights, functioning as a security system for water-based infrastructure. A key feature of the system is its use of distributed ledger technology to mitigate fraudulent activity and ensure the integrity of the data. The company's process is also GDPR compliant, underscoring its commitment to data privacy and security.
SEUN's platform is build in Hedera. It uses the the Hedera Consensus Service (HCS) to provide an immutable and verifiable log of all water data, creating a "single source of truth" that can be trusted by all stakeholders.

SEALSQ is a Swiss-based semiconductor company that specialises in developing secure microcontrollers and implementing post-quantum cryptography. A subsidiary of WISeKey, SEALSQ provides the hardware foundation for securing connected devices in a wide array of industries, including smart energy, automotive, industrial automation, and consumer electronics.
SEALSQ’s product portfolio is centred on providing end-to-end digital security. This includes the VaultIC family of secure elements, which are tamper-resistant microcontrollers offering cryptographic services for authentication and data integrity. They also develop secure ARM platforms and are pioneering post-quantum RISC-V chips to protect against future threats from quantum computing. Beyond the chips themselves, SEALSQ provides Public Key Infrastructure (PKI) and provisioning services, allowing for the secure management of a device’s digital identity throughout its lifecycle.
SEALSQ is partnered with Hedera to integrate its quantum-resistant semiconductors directly into the Hedera network's infrastructure. This partnership aims to protect the Hedera ecosystem from the emerging threat of quantum computing by "future-proofing" digital signatures and communication channels. Specifically, SEALSQ's hardware will be used in the SEALCOIN project, a tokenised platform for machine-to-machine (M2M) transactions on Hedera, which is a core component of the DePIN (Decentralised Physical Infrastructure Network) being developed by WISeKey and its subsidiaries.
LimeChain is a blockchain development and consulting company that provides end-to-end services for startups and enterprises seeking to build on Web3 technologies. LimeChain offers deep expertise across a wide range of protocols, delivering solutions that include custom dApp development, DeFi product engineering, smart contract creation and audits, and strategic blockchain consulting. It works with clients to navigate the complexities of the decentralized web, from initial proof-of-concept and architecture design to full-scale implementation and support.
The company has established itself as a key development partner within numerous blockchain ecosystems, including a significant and long-standing relationship with Hedera. LimeChain has been instrumental in building core functionalities and tools for the Hedera network. Their collaborative work includes leading the development of the Hedera Token Service (HTS) and creating an open-source demonstration of the Hedera Consensus Service (HCS) integrating with enterprise systems such as Microsoft Dynamics.
Furthermore, LimeChain was a key technical partner in developing Hashport, a pioneering interoperability solution that uses HCS to bridge assets between Hedera and other major networks.