InMidtown, which represents firms in Holborn, Bloomsbury and St Giles, said its scheme had seen a 40% increase in honey produced in the last year.
But the LBKA dismissed the project as 'bee bling' saying firms should focus their spending on planting forage.
LBKA secretary Angela Woods said: 'There are a finite number of green spaces in London. It could get to the point where the bees are not sustainable. London's bee population is going up but honey yields in London are going down and we need to ask is it because there is not enough forage.'"
London bee numbers 'could be too high'
Plant more bee forage.