The LSE Directory / Data providers
Finnhub is a financial market data company that provides real-time and historical price data, company fundamentals, and alternative datasets through a REST API and a WebSocket streaming feed. Coverage spans equities on 60 or more global stock exchanges, 10 forex brokers, and 15 or more cryptocurrency exchanges, alongside company financial statements, earnings estimates, SEC filings, economic indicators, and market and company news. The company is headquartered in New York, with additional operations in Mumbai, Sydney, and Ho Chi Minh City. Finnhub targets individual developers, academic users, fintech startups, and investment firms with a single unified API rather than separate products per asset class or data type. Its free tier, which requires no credit card, allows 60 API calls per minute and includes real-time US stock quotes, company news, basic fundamentals, SEC filings access, and WebSocket streaming for up to 50 symbols; paid individual, professional, and enterprise plans raise those limits and unlock deeper historical and fundamentals coverage. A differentiator versus narrower data vendors is the breadth of alternative data bundled into the same API: congressional and senate trading disclosures, government contracts and lobbying records, FDA approval calendars, ESG scores, earnings call transcripts, insider transactions with proprietary MSPR sentiment scoring, and social sentiment drawn from Reddit and Twitter. Official client SDKs are published on GitHub in Python, Ruby, PHP, Go, JavaScript, and Kotlin. Finnhub describes itself on GitHub as providing institutional-grade financial data to investors, fintech startups, and investment firms, and states its mission as democratizing access to financial data through a free real-time API. Crunchbase and CBInsights list the company as founded in 2018 and based in New York; no funding rounds are listed on Crunchbase as of this research. The company is used widely in the retail developer and quant community, including integration guides published by Interactive Brokers' IBKR Campus for pulling Finnhub data into trading research workflows.
