Antoine Shagoury

National Stock Exchange, Inc. provides security brokerage services. It protects investors through the establishment of rules which promote fair and equitable trading. The firm offers its clients with services for trading equity securities and ETF’s across all registered NMS Securities and proprietary market data feeds. National Stock Exchange was founded in 1858 and is headquartered in Jersey City, NJ.

American Stock Exchange Clearing Corp. provides stock and securities clearances services. The company is headquartered in New York, NY

Turquoise Trading Ltd. provides electronic execution services to buyers and sellers of pan-European equities, delivering differentiated value throughout the trading process. The firm's multi-lateral trading facility (MTF) operates uniformly across 15 European markets with a unique market model, a fully risk-managed clearing solution and efficient economics. Its MTF's integrated market combines dark and visible orders to increase execution and price improvement for small orders, whilst minimizing information leakage and market impact for larger, institutional-size orders. Turquoise technology delivers high throughput and ultra-fast response times to the most demanding trading specifications in the world.

Cloud Technology Partners, Inc. provides cloud computing consulting services for migrating, developing and managing cloud applications and infrastructures. Its solutions include cloud strategy and economics, cloud security and governance, application portfolio assessment, application migration, cloud native development, application modernization, big data and analytics, and tools and technologies. The company was founded by Christopher H. Greendale. Erik W. Sebesta, Jonathan L. Rounds, and James Lampert in 2010 and is headquartered Boston, MA.

Part of London Stock Exchange Group plc, LCH.Clearnet LLC operates as a derivatives clearing organization.

Part of London Stock Exchange Group plc, globeSettle SA is a Luxembourger company that provides central security depository services. The private company is based in Luxembourg, Luxembourg.

Part of London Stock Exchange Group plc, Gatelab Srl is a private company that engages in the trade of securities. The company is based in Isernia, Italy.

Ridge-Lane LP is an American company that offers strategic consulting and venture development services. The private company is based in Washington. The company was founded by R. Brad Lane and Thomas Joseph Ridge, and R. Brad Lane has been the CEO since its incorporation.

Part of Explore123 Ltd., Exactpro Systems Ltd. is a leading independent provider of software testing services for mission-critical technology that underpins financial markets. The private company is based in London, UK. The British company provides Quality Assurance Service and specializes in quality assurance for exchanges, investment banks, brokers, and other financial sector organizations worldwide. Exactpro Systems offers a range of testing tools, including Sailfish, Load Injector, Minirobots, and Clearth, for functional and operational testing of securities data distribution, trading systems, risk management, market surveillance, and post-trade infrastructures. The company's non-functional testing service is a strong feature, with tools such as Load Injector and Minirobots being very useful in the emulation of heavy loads, multiple participants' activity, and high rates of transaction in electronic markets. The company also offers passive testing tools such as SHSHA, which allows observing the system without interacting with it. Exactpro Systems discusses how technology innovation can improve efficiency, increase quality assurance levels and due diligence standards, ensure resiliency, and regulatory compliance. The company was founded in 2009 by Iosif Itkin and Alexey Zverev, and Alexey Zverev and Iosif Itkin have been the CEOs since 2009.

World Quantum Growth Acquisition Corp. is a blank check company, which was formed for the purpose of effecting a merger, share exchange, asset acquisition, share purchase, reorganization or similar business combination with one or more businesses. The company was founded by Xavier Rolet, Serge Harry, Michel Brogard, Delphine Brès, and Antoine Shagoury on March 9, 2021 and is headquartered in George Town, Grand Cayman.