|Key People||Charles Marston, Founder, Chairman and CEO|
Calypso Technology is a U.S.-based software and service provider that was merged with AxiomSL in July of 2021 to form Adenza. The much expanded capacity that results from the merger will enable Adenza to provide customers with end-to-end trading, treasury, risk management and regulatory compliance platforms that can be delivered on-premise or on-cloud.
Calypso served the capital markets, specializing in trading, risk management and trade processing for exchanges, banks, clearing firms, asset managers, hedge funds and insurance companies.  The firm was founded in 1997 as a provider of technology for the OTC derivatives market. After the passage of the Dodd-Frank Act in the U.S., and its mandate that swaps trades be cleared through central counterparties, Calypso became a significant player in the exchange space.
Calypso won business from some of the biggest clearing houses and banks, including CME Group, Singapore Exchange, Eurex, Hong Kong Exchanges and Clearing, Citigroup and RBS, and now operates out of 17 offices across the US, Europe and Asia-Pacific.
In June 2013, it was reported that Calypso's management, which owns a majority of the company, had been seeking a buyout partner, and that several private equity firms had expressed interest.
In October of 2010 it was announced that CME Group would use the Calypso System to support its clearing service for over-the-counter interest rate swaps.
In June, 2012, Calypso partnered with the technology firm, AcadiaSoft Inc., to incorporate its margin automation, electronic messaging and workflow software into Calypso's collateral management solution systems.  The move came as a response to members of the 20 most influential countries, the G20, called for requiring increased collateral in clearing OTC Derivatives.
In April 2017 Calypso Technology partnered with the blockchain consortium R3 to provide five financial institutions with trade matching services, integrating Calypso’s cloud application and R3’s blockchain powered Corda platform to carry out real-time trade matching tests across four time zones.
- ↑ Calypso Technology and AxiomSL combine forces under new name: Adenza. Adenza.
- ↑ Overview. calypso.com.
- ↑ Suitors circle as Calypso owners seek exit route. Financial News.
- ↑ CME Uses Calypso For Swap Clearing. FOW.
- ↑ Calypso and AcadiaSoft merge collateral Products. bobsguide.com.
- ↑ Calypso and R3 partner for blockchain trade matching. The Trade News.