ANZ, NAB trail in satisfaction ratings

ANZ and National Australia Bank continue to trail Westpac and the Commonwealth Bank in business customer satisfaction ratings.

ANZ and NAB have found themselves vying for last place in a business customer satisfaction rating. (AAP)

ANZ and National Australia Bank have again found themselves trailing their rivals in a satisfaction survey of the big four lenders' business customers.

NAB and ANZ again recorded an average satisfaction rating of 7.1 out of 10 among business customers in June, according to DBM Consultants' Business Financial Services Monitor.

That puts the two lenders behind rivals Westpac and the Commonwealth, which had average scores of 7.4 and 7.5, respectively.

The Commonwealth and Westpac have consistently scored above ANZ and Westpac during the past 12 months, according to the survey which covers 20,000 businesses a year.

DBM director Maria Claridad said satisfaction with the big four banks had generally improved in the past couple of years but had fallen back from its December peak.

"While businesses are providing good solid ratings for the big banks, fewer business customers are delighted with the offering," she said.

"It is very possible that their level of expectation has risen in recent years, so that what used to be seen as exceptional service is now expected by businesses."