
Citadel Wallet
Citadel Wallet is a specialized hardware wallet designed to offer robust security and a seamless user experience for individuals interacting with the Hedera Hashgraph network. Its development was supported by HeadStarter's Builder Labs.
It features a full suite of secure storage options focused on providing secure storage and transaction capabilities for Hedera's native cryptocurrency, HBAR, as well as Hedera Token Service (HTS) tokens and non-fungible tokens (NFTs).
The Citadel Wallet device emphasizes high-grade security, incorporating features such as Common Criterial Evaluation Assurance Level 6+ (EAL8+) certified Secure Element and a secure microprocessor featuring Trust Zone technology to protect users' private keys offline.
Citadel Wallet is engineered to support the full spectrum of Hedera network services, including native staking, interaction with smart contracts, and management of various Hedera-based assets. It also features a user-friendly interface and offers both USB-C and secure Bluetooth connectivity for flexible interaction with companion applications and decentralized applications (DApps) within the Hedera ecosystem.
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Indodax, founded in 2014, is one of the largest and oldest cryptocurrency exchanges serving the Indonesian market. It provides a platform for users to buy, sell, and trade a wide array of digital assets using the Indonesian Rupiah (IDR). The exchange boasts millions of registered users
Indodax offers a comprehensive suite of trading services including spot trading for numerous cryptocurrencies, ranging from major coins such as Bitcoin and Ethereum to a diverse selection of altcoins. The platform features a mobile application with distinct "Lite" and "Pro" modes to cater to both novice and experienced traders. Users can also engage in staking to generate passive income from crypto holdings.
The exchange places a strong emphasis on user education through its "Indodax Academy," which provides resources on blockchain technology and cryptocurrency trading. It is registered and licensed by Indonesia's Commodity Futures Trading Regulatory Agency (BAPPEBTI), underscoring its commitment to operating within the local regulatory framework.

Oneto11 is a multigenre mobile gaming platform built on the Hedera blockchain network. It features a pioneering social networking fantasy application with a diverse play-to-earn (P2E) ecosystem allowing users to generate income through wins and a deep, multi-layered referral system.
The Oneto11 platform hosts a wide array of games catering to different player preferences. Its core offering includes fantasy sports, where users create virtual teams for real-world matches in cricket, football, and other sports and compete for prizes. It also provides a robust collection of casual mobile games such as Ludo and Fruit Slice, educational quiz games, and immersive RPG and social metaverse experiences featuring non-fungible token (NFT) integration utilizing the Hedera blockchain platform.
A key aspect of Oneto11 is its integrated wallet, native “1TO11” token for ecosystem transactions, and NFT marketplace. Combined, these allow users to creation and trade in-game assets securely as NFTs, particularly within its RPG titles.

Turtle Moon is a Web3 software development and solutions company that functions as a core infrastructure builder for the Hedera ecosystem. It focuses on creating open-source tools, services, and standards that empower developers and accelerate the growth of decentralized applications on the Hedera network.
One of Turtle Moon's most significant contributions is the creation of the HCS-20 standard, a framework for issuing and managing fungible tokens using the Hedera Consensus Service (HCS). This standard provided an efficient, low-cost alternative to smart contracts for tokenization. They have also developed and open-sourced a suite of "Turtle Moon Tools" for NFT minting and management, making it easier for creators to launch projects on the network.
Beyond infrastructure, Turtle Moon is an active participant in the Hedera community, closely associated with leading the technical development for projects like HGraph Punks. By developing foundational protocols, open-sourcing their tools, and building applications, Turtle Moon plays a vital role in making the Hedera network more accessible, functional, and robust for developers and users alike.

BlockScience, founded in 2017, is an R&D, engineering, and analytics firm that specializes in the design and analysis of complex systems. With an interdisciplinary team of engineers, data scientists, and social scientists, the company applies advanced mathematical and computational engineering to model, simulate, and design resilient socio-technical systems for a diverse range of clients, including for-profit companies, non-profits, and government organizations.
The firm's core service is providing a rigorous, data-driven approach to designing and validating economic and governance mechanisms. A key product in their toolkit is cadCAD, an open-source Python-based modeling framework they developed. This tool allows for the creation of "digital twins" of complex systems, enabling clients to simulate and test new business models, market designs, or automated smart contract logic before deployment. This approach is used to analyse system safety, resilience, and sustainability under various conditions.
BlockScience has a direct collaboration with Hedera and the Hedera Foundation to design and model innovative market mechanisms for renewable energy and other environmental assets. This work includes the development of Automated Regression Market Makers (ARMMs), a novel price discovery mechanism for semi-fungible assets like energy credits.
