Static Variable Not Assigning Half The Time?

I created a simple static variable on many of my objects to track how many are made. Sounds simple enough... but they don't work outside the constructor! What am I missing here? The frustrating part is the code works for Corporation, but the EXACT SAME CODE doesn't work in Mission.

Stripped down code

 using UnityEngine;
 using System.Collections;
 using System.Collections.Generic;
 
 public class Corporation : MonoBehaviour
 {
     static public int corporationsMade=-1;
     
     //Variables
     public int corpID;
 
     public Corporation()
     {
         corpID = ++Corporation.corporationsMade; //increment made count, then assign number
     }
 }

THAT ALL will "work" as long as it's in that code block, in that the ID and the objectsMade are both increasing... however, when I create a corporation outside like so...

 public class CorporationFactory : MonoBehaviour 
 {    
     //Variables
     public List<Corporation> corpMarket;
     
     Corporation GenerateCorporation ()
     {
         Corporation newCorp = (Corporation) Instantiate(corpPrefab);        
         newCorp.transform.parent = CorporationFolder.transform;//child to CorpFolder
         newCorp.corpManager = corpManager;//give reference to corpmanager
 
         newCorp.name = string.Format("{0}:{1}", newCorp.corpID, newCorp.corpName);//name object after id:corpName
         
         return newCorp;
     }

That doesnt work! The static variable is still increased, but the object's ID is 0.