I found a post from 2018 that listed a few of these, https://www.greenbuildingadvisor.com/question/osb-with-integrated-insulation

And have also looked at the Nailbase post by Martin Holladay (2016)

Nailbase Panels for Walls

It seems like there are more companies now.

I have found the following companies that make structural insulated sheathing (SIS) products with their highest R value sheet:

Zip R – R12, poly, seems to used the lower long term cold weather R values

OX-IS – R10, uses Poly, so it is lower than listed value

ArmorWall – R21, poured urethane (waiting on an back from the company about long term cold weath R value), it also really heavy, the lightest 4×8 panel is 92lbs. For refence, 5/8 OSB weighs 66.6lbs.
ArmorWall is a unique one that one might want more info on
https://maxlifeindustries.com/max-facts/
Go to the bottom of the and select “Max Facts: ArmorWall Goes Green”

ROK-ON – R10.5, EPS core, surrounded by sheets on both sides

Hunter Panels Xci Ply and NB -R25.8 uses poly, so it is lower than listed value

Barricade® Thermo-Brace® S.I.B – R5, uses GPS

Rmax Thermasheath®-SI – R6 uses Poly, so it is lower than listed value

C-SIS Sheathing – R6 uses Poly, so it is lower than listed value

Does anyone know of any other companies that make SIS’s?
I’m just looking for as many options as I can get.

Thanks