D3 is a next-generation domains company building interoperable web2<>web3 domain names. Its goal is to empower and offer secure, decentralized identities, with domain names at the forefront.

AllDomains is a Web3 platform to create, register, and trade customizable Web3 Identities for .everyone. With AllDomains any user can choose not only a name they desire but also the community they wish to associate with, adding a new layer of customization to their Web3 identity. Be it a Token, an NFT collection, or a DAO, everyone can create their own TLD and unite their whole community under a unique brand.

Doma Protocol is a blockchain built for DomainFi that aims to help modernize and unlock liquidity for all domain names. Think of it as turning domain names into composable, programmable assets.

TNA is a naming protocol for Bitcoin designed to improve its usability and broaden its array of assets and primitives. Supporting multiple assets, TNA seamlessly integrates with all Bitcoin layer 2 solutions. It utilizes its DA framework, known as the TNA Core, to boost the mainnet’s capacity for managing cross-chain interactions and improving network interoperability.

Starknet.id is an identity and naming service for Starknet. Users can mint a Starknet identity for free and connect it to their Twitter, Discord, or GitHub account.

BRC App is the App for BRC & Bitcoin Ecosystem that support Native .btc Domains, Launchpad, Trading with BTC, Market Intelligence.

ZNSConnect is the decentralized name service for linking Omnichain. Simplifies web3 interactions, replaces complex addresses with user-friendly names.

Sui Name Service (SuiNS) is a service that simplifies users' web3 identities, websites, and wallets.

SPACE ID is building a universal name service network with a one-stop identity platform to discover, register, trade, and manage web3 domains. It also includes a Web3 Name SDK and API for developers across blockchains, providing a multi-chain name service for everyone to easily build and create a web3 identity.

The Ethereum Name Service (ENS) is a distributed, open, and extensible naming system based on the Ethereum blockchain. Its purpose is to map human-readable names like 'alice.eth' to machine-readable identifiers such as Ethereum addresses, other cryptocurrency addresses, content hashes, and metadata. ENS also supports 'reverse resolution', enabling Ethereum addresses to be associated with metadata such as canonical names or interface descriptions. ENS has similar objectives to DNS, the Internet's Domain Name Service, but has a significantly different architecture due to the capabilities and constraints provided by the Ethereum blockchain. Like DNS, ENS operates on a system of dot-separated hierarchical names called domains, with the owner of a domain having full control over subdomains.

Freename is a TLD and domain name registration platform that allows its users to search for and register any kind of TLD. On Freename, users can build their own Web3 domain ecosystem to generate passive income from royalties.

Clusters is a multi-chain name service designed to solve problems such as address fragmentation, wallet management complexity and domain name preemption. It is launched by Delegate in partnership with cross-chain interoperability protocol LayerZero.

DIDhub is an all-in-one aggregator that support user explore web3 domains. With its aggregation search function, users can manage and monitor their Web3 domains more efficiently, increasing the success rate of their projects.

EDNS Domains is a decentralized name service that supports most established blockchain networks, offering multichain and crosschain functionalities. It enables users to translate machine byte-code into human-readable names that can seamlessly move across multiple blockchains. EDNS also aspires to be the future omnichain decentralized domain naming service for various Web3.0 demands, including NFTs, Cryptocurrency Wallets, Web hosting, DeFi IDs, and GameFi IDs in the digital world.

ArchID is a name service for Archway Network. Offering domains, subdomains, and web2 identity verification, ArchID enables users to mint unique domain IDs to replace lengthy strings. Users can integrate their social media profiles, saving time and effort when using multiple applications, and are afforded increased security within the ecosystem.

DecentraWeb is a decentralized implementation of the DNS base layer protocol on the Ethereum blockchain. It enables anyone to become a Web3 domain registrar.

SNS is the user identity infrastructure layer on Solana. The .sol domain name can be used as your payment method, web3 username, and on-chain identity.SNS is building a composable and interactive web3 identity to help anyone anywhere connect to each other with an intuitive and user-friendly omni-chain experience.

Tezos Domains is a distributed, open, and extensible naming system that uses the Tezos blockchain. Its main purpose is to translate a user-friendly and meaningful alias to its corresponding Tezos address and vice versa.

Terra Name Service (TNS) is a name service based on the IBC chain. It maps human-readable names, such as "terra.ust", to machine-readable Terra addresses. TNS acts as users' on-chain profile. In addition to pointing the domain name to a Terra address, users can also write a record in each domain, including the following data: NFT, email, URL, avatar, description, Twitter, and keywords.

.box is a fully tokenized top level domain that is compatible with DNS and ENS. Every domain supports decentralized ownership and records management, payments, Web3 authentication, email, websites, and Web3 messaging. .box domains can resolve Web2 email addresses and websites, providing a bridge between the decentralized and centralized web.

.earth is an ENS Avatar solutions.It aims to create a super domain name community and improve the stickiness of Web3 users. Its smart contract wrapper enables any .eth name to be turned into an NFT, giving subdomains the ability to trade, transfer, create more subdomains, and support metadata.

BTC Domain is a bitcoin domain name service platform where users can register a name and associate it with their bitcoin address. BTC Domain provides an experience similar to the Ethereum Name Service (ENS) by providing a wide range of name-related services, including name registration, name resolution, and other related services.".btc" domains are inscribed as formatted JSON text onto the Bitcoin mainnet, with each domain being a unique inscription that is akin to a BTC NFT.

Established in 2021, d.id is a pioneer in decentralized identity (DID) systems. The company provides an array of DID-based solutions aimed at promoting community building and digital identity. Their product lineup includes .bit, a barrier-free DID issuance platform for communities and also a DID system for individuals; Voty, the first DID-based community governance system; SoulFrag, the first DID-based reputation management system; and d.id Profile, a DID-based profile for users to showcase milestones and accomplishments. With about 280,000 registered accounts and integration with more than 140 wallets and dApps, d.id is committed to building a trusted and inclusive DID ecosystem.

The Butterfly Protocol is a cross-chain, decentralized Domain Name System that offers Non-Fungible Token domains.

Sonic Name Service 是基于 Sonic 区块链上的去中心化、用户友好的域名系统。SNS 将使用户能够将人类可读的名称（以 、 结尾）映射到区块链地址、智能合约、网站等。

BtcName is a DID standard for writing names to Bitcoin by Ordinals Protocol with plain text format.

Berakin is a name service based on Berachain that provides customizable profiles containing aggregated data from users' on-chain and off-chain activities.

AZERO.ID is the official domain name service for Aleph Zero. It will be keeps user wallets and transactions fully private.

Spaces is a naming protocol that leverages the existing infrastructure and security of Bitcoin1 without requiring a new blockchain or any modifications to Bitcoin itself. “Spaces” serve as community identifiers that are distributed through an auction process built using existing Bitcoin scripting capabilities. Proceeds generated through auctions are irrevocably burned. Within each Space, users can create “Subspaces,” which serve as trustless individual identities, operating with a high degree of autonomy primarily off-chain but can also submit transactions directly on-chain.

Namefi.io aims to bring every domain onchain, facilitating the trading and management of internet names for the future. Built on Ethereum, it offers advanced cryptographic authentication and ledgering for secure transactions, with seamless integration into Ethereum NFT marketplaces like OpenSea, streamlining the domain trading process.