Alta Raises $47.5 Million Series A for Compliance-First Blockchain

Alta has raised $47.5 million in a Series A round led by Index Ventures, betting that banks will pay for a blockchain built around compliance rather than raw transaction speed. The round, announced Tuesday, comes at an undisclosed valuation and brings the startup's total funding to $80 million.

The new money follows a $32.5 million seed round backed primarily by Airwallex, the Australian fintech giant that competes with Stripe in global payments. GV (Google Ventures), Blackbird Ventures, Square Peg and Capital49 — a venture firm established by Airwallex's cofounders — also joined the Series A.

What is Alta actually selling?

Alta runs its own Layer 1 blockchain aimed at banks and large corporations that want to move money in crypto without tripping over regulators. Its core pitch is a plug-and-play compliance layer: customers can ensure any transaction they process is consistent with rules and regulations anywhere in the world, according to the company.

The chain includes a feature that prevents unknown parties from sending funds to an address on the blockchain — a direct answer to the "airdrop" mechanics of most chains, which oblige wallet holders to accept funds whether they want them or not.

"We often say we wouldn't have built an L-1 if we didn't have to," CEO Loong Wang said in an interview with Fortune. His argument: existing chains such as Ethereum, Solana and Avalanche lack privacy and compliance tools designed for large financial players, even though blockchain remains, in his view, the best technology for transferring money.

That claim invites skepticism. Layer 1 blockchains have struggled for years to win meaningful institutional volume, and incumbents keep adding compliance features of their own. Alta has not disclosed revenue, customer counts or transaction volumes — only that it has 25 employees and offices in San Francisco and Melbourne. The compliance promise, in plain words, is still a promise until banks disclose real usage.

Who is behind it?

Wang founded an earlier crypto startup, sold it in 2021, and then pivoted to a second startup using quantum computing for drug discovery before returning to crypto to build Alta. He is joined by Catherine Porter, a former Meta executive who helped oversee the company's since-abandoned crypto venture. The company recently rebranded from its original name, Metal.

The Airwallex relationship runs deeper than the cap table. Wang has a personal connection with Airwallex CEO Jack Zhang, who was a crypto skeptic before recently acknowledging the value of stablecoins for cheap and efficient money transfers.

"With the rise of agentic banking and programmable payments, stablecoins are becoming an important vector for settlement," Zhang said in a statement announcing the round.

Why Airwallex matters to the bet

Airwallex is serving as a distribution channel for Alta, persuading its global customer network to use the startup's platform for crypto transactions. That gives a 25-person startup access to an established payments customer base — a rare advantage in a sector where distribution, not technology, usually decides winners.

The timing is not accidental. Stripe, Airwallex's main rival, is building out its own crypto infrastructure, including the Tempo blockchain. Payments giants are converging on stablecoin settlement, and Alta is Airwallex's answer to that race.

Whether compliance alone differentiates a new Layer 1 remains unproven. The $80 million question — literally, given total funding — is whether banks will route volume through a chain whose adoption metrics have not been made public.