Keith William Grehan

FFastFill Ltd. designs and delivers application services for the electronic trading community. Its services and solutions use the latest developments in technology to automate trade flow processes across a firm's front, middle, and back offices. The firm solutions encompass electronic order routing, clearing, risk management, and back office as part of integrated, yet modular system architecture. The company was founded in 1999 and is headquartered in London, the United Kingdom.

ION Trading UK Ltd. provides trading solutions for the electronic fixed income markets. It offers consulting, training, and ongoing support. The company was founded by Andrea Pignataro and is headquartered in London, the United Kingdom.

IT2 Treasury Solutions Ltd. provides treasury management software and services. It offers services for large corporations and small and mid-sized financial institutions. The firm provides end-to-end management of the payments life cycle, accommodating all kinds of bulk, one-off and treasury-originated payments in a transparent and controlled workflow. The company was founded in 1982 and is headquartered in London, the United Kingdom.

Part of ION Investment Group Ltd., Modernelite Ltd. operates as a holding British company. The company is based in London, UK. Founded in 2001.

Part of ION Investment Group Ltd., Patsystems UK Ltd. is a company that provides cleared derivatives solutions covering the complete trade lifecycle. The company is based in London, UK. The British company offers everything needed for order management, order execution, trading strategies, trade processing, and derivatives clearing, as well as actionable insights in real-time.

Part of ITT SA, Rolfe & Nolan Systems Ltd. is a British company that develops and sells software products. The company is based in London, UK. Founded in 1996.

ION Trading Technologies SARL operates as an investment holding company. The company was founded on May 15, 2013 and is headquartered in Luxembourg.

Part of ION Investment Group Ltd., FFastFill Europe Ltd. is a British company that provides business and domestic software development services. The company is based in London, UK and was founded in 1999.

Founded in 2019, Acuris Bidco Ltd. is a British company that functions as an investment holding company. Part of ION Investment Group Ltd., the company is based in London, UK.

Part of Lab49 Consulting Ltd., Lab49 UK Ltd. is a company that provides software consulting and development services. The company is based in London, UK. Lab49 was founded in 2006.

Part of Canouan Development Corp. Ltd., CDCH Ltd. functions as an investment holding British company. The company is based in London, UK and was founded in 2015.

Part of ION Investment Group Ltd., Lab Newco Ltd. is an investment holding British company. The company is based in London, UK. Lab Newco was founded in 2013.

Part of Ion Analytics Holdco Ltd., I-Logic Technologies UK Ltd. is an investment holding company. I-Logic Technologies UK Ltd. is based in London, UK. Founded in 2017.

Part of I-Logic Technologies UK Ltd., I-Logic Holdings Ltd. is a company that develops and sells software for financial firms. The company is based in London, UK and was founded in 2017.