Converting 2 Calculated columns into a Slicer

I have a report that have 2 pages (Large Companies and Non Large Companies)

1 page has a calculated column that filters  "Large Companies"  --- 
Calculated column to pull up the "Large Companies" in Rows
     - If(ISBLANK(RELATED('Company Rollup'[Large Company Rollup])) || RELATED('Company Rollup'[Large Company Rollup])="","Other",RELATED('Company Rollup'[Large Company Rollup]))

the 2nd page has a calculated column that filters "Not-Large Companies"
Calculated column to pull up the "Non Large Companies" in Rows
          - if(ISBLANK(RELATED('Company Rollup'[Parent Market])) || RELATED('Company Rollup'[Parent Market])="",Company[Company],RELATED('Company Rollup'[Parent Market]))
Filter on the page that filters out Large Companies
         - Not Large = if(Company[Companu Rollup ]="Other",TRUE(),FALSE())

I'm attempting to place both of the calculated columns into a slice so I will only have 1 page, then utilize a slicer with a
1. Large Companie
2. Non Large Companies
3. All Companies