The Council of Mortgage Lenders (CML) has announced that Citigroup Global Markets has become a new associate.
The lender trade body now has 110 members and 86 associates.
Citigroup supplies financial products and services to a range of customers, taking in consumers, corporations and governments.
It operates in a wide range of markets, including credit, equities, commodities, futures, currencies and securitised markets.
The firm offers a wide range of services, including underwriting, sales and trading, distribution and research.