How many kids do we see at a time? For ABA therapy the ration is 1:1.  Our primary therapy that we provide is behavioral therapy (also known as ABA therapy). This therapy is endorsed by numerous state agencies and the US surgeon general.  In some other facilities, it is not uncommon for them to have a ratio  2:1 or even higher.  For neuro-typical children a higher ratio is common and even recommended.  But for our children, they need a little more hand's on 1:1 attention, and this level of care is not going to be wavered here.  Even in group therapy where there are more children to oversee, the same level of attention is needed with ABA therapy. The 1:1 ratio will still continue to be administered.   
 
Reference:

https://www.autismspeaks.org/what-autism/treatment/applied-behavior-analysis-aba