In a M&A situation, the bank that represents the seller is the sell-side bank and the bank the represents the buyer is the buy-side bank. Investment Banks provide both kinds of services.
Nov 08 2013 10:55 AM
In terms of the nature of work - buyside work is more analytical since you will have to run various financial models to understand the target companies valuation, synergies etc.
Sell side work is very 'sales' oriented since you will be creating presentations and other marketing materials to sell the company. There is also a small amount of analysis involved here.