Sandra Busby from the Welsh Contact Centre Forum said that "even throughout the recession, this [call centre] industry has continued to grow."
She said that part of the reason for Welsh strength for call centres is communication issues experienced by customers calling overseas, and says that the new jobs are "absolutely vital" for Swansea and its economy.
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A fine and dry day with some warm sunshine in the afternoon, especially in the east.
Parents are more concerned about the cost of sending their children back to school than the price of school holidays, according to research.
The Barclays report calculates regional scores based on gross domestic product, working hours and average house prices.