Iowa Pacific had an SP painted E up there for a while, had SLRG 515 in IC-style brown and orange up there for a while, and when they bought the CNY NRHS's "DL&W" 807-808 those were stored on the S&NC, and they left with the cleanout train last fall. Where to I don't recall, TheMan could probably tell us if it's public knowledge.
NYS&W never technically owned any F units, save the ex-B&LE unit that came with the TP&W and went to the Adirondack RR (and I think since then to Grafton & Upton).
NYS&W did buy two E9AM units, ex BN/Metra commuter engines, which when finally broken badly enough went to Larry's Truck and Electric. In late 2012 Iowa Pacific bought them and they went to Cape Cod at that point. Based on what I see online, 2402 is dead on a siding and 2400 sees use only to provide HEP power. So far as I know neither was ever on the S&NC.
All S&NC equipment that could be moved is off the property.
I don't know that anyone at this point owns more E-units than Iowa Pacific, they have at least seven.