Capital

AQR Capital Management is one of the most influential institutions in modern quantitative investing. Website or institutional source

Apptopia provides mobile-app performance and consumer-activity data covering downloads, usage, engagement, retention, revenue estimates, and market share. Website or institutional source

Appital provides institutional equity liquidity discovery and execution workflow for asset managers seeking to execute larger orders with lower market impact. Website or institutional source

Andurand Capital Management is one of the most recognizable specialist commodity hedge fund firms. Website or institutional source

Ancora Holdings Group is a diversified investment firm with a sustained activist practice, particularly in U.S. Website or institutional source

Anatole Investment Management is a Hong Kong-based hedge fund manager employing a long/short equity strategy grounded in deep, bottom-up fundamental research. Website or institutional source

AmiBroker is a long-established technical-analysis, portfolio-backtesting, optimization, scanning, and automated-trading platform. Website or institutional source

AMD Solarflare is a portfolio of low-latency Ethernet adapters and kernel-bypass networking software designed for electronic trading and high-performance data centers. Website or institutional source

Ambrus Group is a volatility-focused investment manager associated with options, tail-risk, and capital-efficient hedging strategies. Website or institutional source

Alter Domus is a global alternatives-focused administrator with deep capabilities across private equity, private debt, real assets, infrastructure, and related fund structures. Website or institutional source

Alpine Associates Management is a long-established merger-arbitrage manager focused on announced corporate transactions and related equity opportunities. Website or institutional source

Alta Fox Capital Management is a research-driven investment firm with an activist orientation toward small- and mid-cap public companies. Website or institutional source

AlphaSimplex Group is a systematic investment manager associated with managed futures, global macro, and alternative strategies. Website or institutional source

AlphaSense is an AI-enabled market-intelligence platform used by investment firms, corporations, banks, and professional research teams. Website or institutional source

AlphaDyne Asset Management is a global macro and fixed-income investment firm with offices across North America, Europe, and Asia. Website or institutional source

Alpaca provides developer-oriented brokerage, market-data APIs, paper trading, and execution infrastructure. Website or institutional source

Alkeon Capital Management is a technology-oriented investment firm operating across public and private markets. Website or institutional source

AlgoTraders provides outsourced systematic-trading infrastructure for hedge funds, family offices, and financial institutions. Website or institutional source

36 South Capital Advisors is a specialist long-volatility and crisis-risk manager focused on convex strategies across equities, fixed income, currencies, and commodities. Website or institutional source

9fin is a debt-market intelligence platform covering leveraged finance, high yield, loans, distressed debt, CLOs, private credit, and asset-based finance. Website or institutional source