Tullett Prebon | 21,774 followers on LinkedIn. Tullett Prebon, part of TP ICAP group, is one of the world's leading interdealer brokers. Primarily operating as an intermediary in the wholesale financial and energy sectors, Tullett Prebon facilitates the trading activities of its clients, in particular commercial and investment banks. Product areas include Fixed Income Securities and their derivatives, Interest Rate Derivatives, Treasury products, Equities, Energy and Commodities.