For Ocean.io, the maximum limit of results you can get at one time is 50. This is specified in the "Limit Results" input parameter, which has a default value of 10 and a maximum value of 50.
For PandaMatch (which we assume is referring to our Find People feature), you can set an overall limit of up to 50,000 records per search, with a maximum of 100 results per company.
Remember that each result from Ocean.io will consume one credit, so you'll be charged accordingly for the number of results you request.