AgenaTrader: Windows/web trading platform whose C#-derived AgenaScript language builds indicators, scanners and automated, multi-broker strategies.
AmiBroker: Windows desktop platform for charting, technical analysis and rule-based trading system backtesting, scripted in its own AFL language.
Backtrader: Open-source Python framework for event-driven backtesting and live algorithmic trading, built by Daniel Rodriguez since 2015.
Calypso Technology / Adenza: Nasdaq-owned capital markets software formed by the 2021 merger of Calypso (trading/risk) and AxiomSL (regulatory reporting).
Devexperts (DXtrade): Builds DXtrade, a white-label multi-asset trading platform licensed by brokers, banks, exchanges and prop trading firms.
Enfusion: Cloud-based, front-to-back platform unifying OEMS, portfolio management, IBOR, risk and fund accounting for hedge funds and asset managers.
Eze Software (SS&C Eze): Builds Eze OMS/EMS and the cloud-native Eze Eclipse platform for order and execution management at hedge funds and asset managers.
Fidessa: Institutional OMS/EMS and FIX connectivity platform for equities trading, owned by ION Group since its 2018 acquisition.
FlexTrade Systems: Broker-neutral multi-asset EMS/OMS vendor; FlexTRADER spans equities, FX, fixed income, futures and options for institutional traders.
ION Markets (ION Group): Builds trade-lifecycle software, execution to clearing, for fixed income, derivatives, FX and secured funding at banks and asset managers.
Iress: ASX-listed software vendor selling trading systems, market data and adviser platforms (Xplan) to brokers, banks and wealth managers.
Jigsaw Trading: Sells the daytradr order flow/DOM platform and Journalytix trade journal bundled with paid order flow courses for futures traders.
Match-Trade Technologies: Builds the Match-Trader multi-asset trading platform plus CRM, liquidity bridge and white-label tech for forex and prop-trading brokers.
MotiveWave: Java-based desktop platform for charting, Elliott Wave and order-flow analysis, with live execution across 30-plus brokers.
Murex: Independent Paris vendor of MX.3, one cross-asset platform banks and asset managers use for trading, treasury, risk and post-trade.
Portfolio123: Web-based, FactSet-powered platform for backtesting and running rules-based, point-in-time stock and ETF strategies without code.
QuantConnect: Cloud platform for building, backtesting and live-deploying algorithmic trading strategies, built on the open-source LEAN engine.
SimCorp: Front-to-back investment management software (SimCorp One, Dimension) for asset managers and insurers; Deutsche Börse subsidiary since 2023.
StrategyQuant: Prague-based fintech that uses genetic programming to auto-generate and stress-test rule-based trading strategies without coding.
Talos: Institutional OEMS platform connecting digital-asset trading desks to roughly 110 liquidity providers and 60-plus venues.
TradeLocker: Browser-based multi-asset trading platform embedding TradingView charting, aimed at brokers and prop firms as a MetaTrader alternative.
Trading Technologies: Chicago SaaS vendor of the TT platform, a cloud execution, OMS and surveillance system for listed derivatives, fixed income and FX traders.
TS Imagine: Multi-asset order/execution management (TradeSmart OEMS) fused with real-time portfolio risk software (RiskSmart) under one SaaS platform, TS One.
Wealth-Lab: Windows trading-strategy platform combining C# scripting and no-code building blocks for portfolio backtesting and automated execution.
Wyden (formerly AlgoTrader): Zurich based trading and operations platform that runs banks' and brokers' full digital asset lifecycle, from price discovery to settlement and accounting.
Zorro Project: C/C++-scripted algorithmic trading and backtesting engine built by oP group Germany, covering FX, stocks, futures, options and crypto.