Notabene, Inc.
Headquarters
New York United States
About us
To make cryptocurrency a part of the everyday economy.
Notabene builds the trust layer for global money movement, powering the largest Travel Rule-compliant network of regulated digital asset institutions worldwide. The company enables safe, interoperable crypto transactions across jurisdictions while building the first open stablecoin payments platform for businesses. With over 2,000 verified financial institutions across 100+ jurisdictions, Notabene has processed more than $2 trillion in compliant transaction volume. The network connects exchanges, banks, custodians, and payment service providers through programmable trust and pre-transaction coordination that handles verification, authorization, and compliance before funds move on-chain.
Products
Notabene offers three core products built on the Transaction Authorization Protocol (TAP). Notabene Flow is an open stablecoin payments platform enabling B2B cross-border payments, recurring subscriptions, and pull payments without requiring wallet addresses upfront. Notabene Transact automates pre-transaction decision-making with real-time authorization and embedded Travel Rule compliance workflows. TAP serves as the underlying open messaging standard that helps counterparties discover and validate crypto transactions before funds move. The company also offers Revert, a post-settlement control layer for coordinating authorized returns of funds across counterparties.
Funding
Notabene has raised approximately $27.1 million across multiple rounds. The company closed a $14.5 million Series B in November 2024 led by DRW Venture Capital, with participation from Apollo, NextBlock, ParaFi Capital, Wintermute, Jump Capital, F-Prime Capital, and Y Combinator. Earlier, they raised $10.2 million in Series A funding in November 2021, co-led by F-Prime Capital and Jump Capital. The company reached a $45 million valuation following the Series A round.
Recent news
In June 2026, Notabene announced that its open stablecoin payments network, Notabene Flow, had activated hundreds of customers, enabling users at regulated digital asset institutions to complete B2B stablecoin payments directly from their existing accounts.
Technology
Notabene's backend runs primarily on Node.js and TypeScript for microservices and API integrations, with Python and Go used for specific protocol tooling and smart contract interactions. Apache Kafka handles high-volume, real-time transaction data and stream processing. Frontend applications use React and SvelteKit with Redux for state management. The platform leverages PostgreSQL for data storage, Docker and Kubernetes for containerization, and dbt for data transformation. Infrastructure runs on AWS with Cloudflare for security and performance. The core architecture implements AES-256-GCM encryption, ECDH-ES key agreement, and the Veramo Agent framework for verifiable credentials.
Benefits
Notabene operates as a fully remote company with employees working from anywhere across the US, UK, and EU. The company provides a $1,000 work-from-home stipend during the first year and collaborates with employees to procure a custom MacBook Pro that meets their needs. Unlimited PTO reflects the company's trust-based culture, while country-specific statutory benefits are managed through an employer-of-record arrangement. The team values inclusion and welcomes candidates from diverse backgrounds, including those returning from career gaps or transitioning into blockchain.