Asset managers, insurance executives, bankers and other financial service personnel see keeping clients as their biggest business challenge in 2008.

Researchers at Cerulli Associates, Boston, say 49% of survey respondents at financial service firms reported that their main challenge will be acquiring and holding onto clients.

Sales force concerns ranked second, at 15%.

When asked about client concerns, 40% of the respondents cited wealth accumulation and 27% cited generating retirement income.