What does Across DeFi Seed do?

Across is an intent-based crosschain bridge for fast, low-fee token transfers and swaps between blockchain networks.

Who founded Across DeFi Seed?

Across DeFi Seed was founded by Hart Lambur.

Who are Across DeFi Seed's investors?

Across DeFi Seed's investors include Blockchain Capital, Coinbase Ventures, Hack VC, Paradigm, Sina Habibian, YAP Capital, Espresso Systems.

Across DeFi Seed

7 known investors

Across is a blockchain bridge that enables fast token transfers between different blockchain networks. The platform serves crypto users and decentralized finance applications seeking to move assets across chains with low fees and minimal settlement time.

Also known as Across · Across Protocol

Crypto & Web3 Fintech

Founders & leadership

Hart Lambur in 𝕏FounderPartner at Robot Ventures

Investors · 7

Blockchain CapitalSan Francisco · $25K – $200K

Coinbase VenturesStamford · $100K – $10M

Hack VCPalo Alto · $3M

ParadigmSan Francisco · $1M – $100M

Sina Habibianvia Sina Habibian · inferred

YAP Capital$50K – $250K

Espresso Systemsreported

Company profile

researched Aug 2026

Across is a crosschain bridge protocol that lets users and applications move tokens between supported blockchain networks, offering both bridging and swapping in a single flow. Its website describes an intent-based design in which a permissionless relayer network competes to fill user transfers, with transactions verified onchain and no multisig or custodial control of user funds. The company states an average time of 1.2 seconds from confirmation to funds arriving in a wallet, with most transfers settling in under two seconds. The current product generation is marketed as Across V4.

Alongside its consumer bridging interface, Across offers an API that developers can integrate to add crosschain bridging and swapping to their own applications. Documentation examples show a quote-and-swap flow via app.across.to endpoints using origin and destination chain IDs (for example Base to Unichain for a USDC transfer). The protocol advertises support for a broad set of networks including Ethereum, Arbitrum, Optimism, Base, Polygon, Solana, zkSync, Linea, Mode, Lens, Lighter, Lisk, Zora, World Chain, Ink, Soneium, Unichain, BNB Smart Chain, HyperEVM, HyperCore, Plasma, Monad, MegaETH, Tempo, Tron, Avalanche, and Robinhood Chain.

Compiled by commissioned research from 4 cited public sources — announcements, filings, and press listed under research sources below.

Key figures

latest reported

Average transfer speedJan 20261.2 seconds

Cumulative bridging volumeJan 2026$37B

UsersJan 20265,000,000 users

Company-reported or press-reported figures, each dated to when it was claimed — not independently audited.

Competitors · 10

by search overlap

Coinbase126 shared keywordsCoinbase is a cryptocurrency exchange platform that offers trading, custody, and financial services for cryptocurrencies, stocks, derivatives, and prediction markets to consumers, institutions, and developers. The company operates a full-stack infrastructure including secure custody, liquidity services, stablecoin infrastructure, and global settlement rails.

Alchemy105 shared keywordsAlchemy is a platform layer that enables developers to build applications on blockchain networks. The company provides infrastructure and APIs to simplify blockchain development for a global audience.

Symbiosis95 shared keywordsSymbiosis is a cross-chain AMM decentralized exchange (DEX) that aggregates liquidity across EVM and non-EVM networks, letting users swap tokens and move assets between blockchains in a single transaction. It also offers SIS staking, cross-chain liquidity pools and zaps, a DAO for governance, and API/SDK tools for developers.

CryptoRank94 shared keywordsCryptoRank provides cryptocurrency market data, analytics, and research, including live prices and market capitalization rankings for thousands of coins, along with fundraising trends and token sale tracking. It publishes insights and reports covering exchanges, funding rounds, and market narratives for crypto investors and researchers.

Bridge75 shared keywordsBridge is a stablecoin payments platform that gives businesses infrastructure to receive, store, convert, issue, and spend stablecoins through a single API. It supports use cases such as cross-border payments, global payouts, onchain financial services, and crypto onramps/offramps.

Chainlink74 shared keywordsChainlink is an oracle platform that connects blockchains with external data, existing systems, and other chains, providing data feeds, cross-chain interoperability, settlement, compliance, and privacy infrastructure. It serves financial institutions and decentralized finance (DeFi) protocols building and operating tokenized asset and onchain financial products.

Bitget72 shared keywordsBitget is a cryptocurrency exchange platform that also offers Bitget CFD, letting users trade traditional assets such as forex, gold, crude oil, and indices directly with USDT via an MT5 account. It provides multi-asset trading with up to 500x leverage for retail and crypto traders.

Eco71 shared keywordsEco provides a developer platform for stablecoin companies to enable cross-chain money movement without building underlying infrastructure. The platform offers real-time settlement, simplified onchain user experience, and programmable orchestration for stablecoin transactions across multiple chains and assets.

Defillama68 shared keywordsDefiLlama is an aggregator that tracks total value locked (TVL) and other metrics across decentralized finance (DeFi) protocols and blockchains. It provides analytics dashboards, a DEX aggregator (LlamaSwap), an API, and related tools for crypto users and researchers.

MEXC68 shared keywordsMEXC is a cryptocurrency exchange where users trade a range of tokens and futures, with features such as low fees and liquidity. It highlights asset security measures including a Guardian Fund, 1:1 backed reserves, and a futures insurance fund.

Companies competing with Across DeFi Seed for the same Google search keywords, organic and paid, via search-intersection analysis.

Timeline · 2

launches, deals, and filings

Aug 2026

Across integrates Paxos Labs' Transit for $50M transfers

Company blog post announcing an integration with Paxos Labs' Transit product for $50M transfers.

source ↗

Jan 2026

Uniswap integrates Across for in-app crosschain transfers

Uniswap embedded Across into its app to provide native in-app token bridging across supported chains, per a customer statement from a Uniswap product lead published on the Across site.

source ↗

Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.

▸Research sources · 4

primary sources listed

Across DeFi Seedacross.to · web

4 public sources were cited for this profile; the first-party ones are listed here.

Frequently asked questions

What does Across DeFi Seed do?: Across is an intent-based crosschain bridge for fast, low-fee token transfers and swaps between blockchain networks.
Who founded Across DeFi Seed?: Across DeFi Seed was founded by Hart Lambur.
Who are Across DeFi Seed's investors?: Across DeFi Seed's investors include Blockchain Capital, Coinbase Ventures, Hack VC, Paradigm, Sina Habibian, YAP Capital, Espresso Systems.