
Barrage
Barrage is a Croatia-based software development company founded in 2016. It positions itself as a "digital barrage," providing robust and high-quality digital platforms for a global clientele. With a team of over 100 professionals, Barrage specialises in creating custom software solutions, with a strong focus on fintech, data science, and AI.
The company offers a comprehensive range of services including custom software development for web and mobile, digital product design with a focus on user experience, and brand identity design. Barrage also has expertise in machine learning, data center development, and provides consulting services in distributed ledger technology.
Barrage is a Hedera ecosystem technology partner that leverages its in-depth knowledge to build solutions on the Hedera network. The company has published insights on Hedera's impact on DeFi, demonstrating a strong understanding of its architecture, including the hashgraph consensus mechanism and the "gossip about gossip" protocol. This expertise allows Barrage to develop secure, scalable, and efficient software for its clients, utilizing Hedera's enterprise-grade capabilities to create modern digital solutions.
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Object Computing, Inc. (OCI) is a technology consulting company founded in 1993 and based in St. Louis, Missouri. It specializes in designing and building custom software solutions for enterprise clients across various industries, including defense, aerospace, financial services, and healthcare.
OCI's services span the entire software development lifecycle, from strategy and design to implementation and support. The company offers expertise in a wide range of technologies, including real-time and embedded systems, cloud computing, machine learning, and the Internet of Things (IoT). A significant part of their work involves helping organizations modernize their legacy systems and adopt new technologies to improve efficiency and drive innovation. They also create and sponsor multiple open-source projects, most notably Grails, a popular web application framework based on the Groovy programming language.
Object Computing leverages its extensive experience in enterprise software to help organizations build and integrate solutions on the Hedera network. OCI provides consulting, training, and development services specifically for Hedera, enabling businesses to utilize the platform for applications requiring high throughput, security, and auditable data logging.

Arkhia is an enterprise-grade Infrastructure-as-a-Service (IaaS) provider founded in 2022. It was established to bridge the gap between shared public network resources, which can be limited, and the complex, resource-intensive private infrastructure that large-scale applications require.
Arkhia's services are specifically tailored for the Hedera network. The platform offers a suite of tools designed to streamline the development process, including dedicated RPC services, a powerful REST API for interacting with the Hedera Mirror Node, and specialized tools like Watchtower for real-time data streaming and WorkBench for analyzing on-chain data. By offering a high-availability, low-latency environment, Arkhia enables developers to focus on building their applications without the operational overhead of managing their own infrastructure.
The connection between Arkhia and Hedera is fundamental; Arkhia's entire platform is built to support and enhance development on the Hedera public ledger. Leveraging a partnership with Google Cloud, Arkhia provides enterprise-level reliability and performance, ensuring that applications built on its infrastructure can scale to meet high demand.

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.
