Our IR & ESG Services business includes our Investor Relations Intelligence and Environmental, Social and Governance Solutions businesses, which serve both public and private companies and organizations. Our public company clients can be companies listed on our exchanges or other U.S. and global exchanges. Our private company clients include a diverse group of organizations, ranging from family-owned companies, government organizations, law firms, privately held entities, various non-profit organizations to hospitals and health care systems. We help organizations enhance their ability to understand and expand their global shareholder base, improve corporate governance and navigate the evolving ESG landscape through our suite of advanced technology, analytics, reporting and consultative services. In December 2021, we acquired QDiligence, a provider of software that facilitates digital director and officer questionnaires and self-evaluations for boards of directors and corporate secretaries.
Market Services
Our Market Services segment includes our Equity Derivative Trading and Clearing, Cash Equity Trading, Fixed Income and Commodities Trading and Clearing, and Trade Management Services businesses. We operate multiple exchanges and other marketplace facilities across several asset classes, including derivatives, commodities, cash equity, debt, structured products and exchange traded products (“ETPs”). In addition, in certain countries where we operate exchanges, we also provide broker services, clearing, settlement and central depository services. In January 2020, we commenced an orderly wind-down of our Nordic broker services operations business. We expect this wind-down to continue through the second quarter of 2022. In June 2021, we completed the sale of our U.S. fixed income business.
Our transaction-based platforms provide market participants with the ability to access, process, display and integrate orders and quotes. The platforms allow the routing and execution of buy and sell orders as well as the reporting of transactions, providing fee-based revenues.
In the U.S., we operate six options exchanges and three cash equity exchanges. The Nasdaq Stock Market, the largest of our cash equities exchanges, is the largest single venue of liquidity for trading U.S.-listed cash equities. The U.S. portion of Nasdaq Fixed Income includes an electronic platform for trading of U.S. Treasuries and we also operate a Canadian exchange for trading of certain Canadian-listed securities. As noted above, in June 2021, we completed the sale of our U.S. fixed income business.
In Europe, we operate exchanges in Stockholm (Sweden), Copenhagen (Denmark), Helsinki (Finland), and Reykjavik (Iceland), as well as the clearing operations of Nasdaq Clearing, as Nasdaq Nordic. We also operate exchanges in Tallinn (Estonia), Riga (Latvia) and Vilnius (Lithuania) as Nasdaq Baltic. Collectively, Nasdaq Nordic and Nasdaq Baltic offer trading in cash equities, depository receipts, warrants, convertibles, rights, fund units and ETFs, as well as trading and clearing of derivatives and clearing of resale and repurchase agreements. Additionally, in June 2021, we completed the acquisition of a majority stake in Puro.earth, a Finnish-based leading marketplace for carbon removal.
The European portion of Nasdaq Fixed Income provides a wide range of products and services, such as trading and clearing, for fixed income products in Sweden, Denmark, Finland, Iceland, Estonia, Lithuania and Latvia.
Nasdaq Commodities is the brand name for Nasdaq’s European commodity-related products and services. Nasdaq Commodities’ offerings include derivatives in power, natural gas and carbon emission markets, seafood, electricity certificates and clearing services. These products are listed on Nasdaq Oslo ASA, except for seafood, which is listed on Fishpool, a third party platform. In June 2021, we sold our U.S. Fixed Income business, which included an electronic platform for the trading of U.S. Treasuries. Additionally, in June 2021, we completed the acquisition of a majority stake in Puro.earth, a Finnish-based leading marketplace for carbon removal.
Through our Trade Management Services business, we provide market participants with a wide variety of alternatives for connecting to and accessing our markets. Our marketplaces may be accessed via a number of