Hi @mrkeithy
I believe you are on the right track. Kindly check this tutorial to learn how to sort a repeater: https://www.advancedcustomfields.com/resources/how-to-sorting-a-repeater-field/.
Please keep in mind that ‘field_57fcb8a09f91e’ should be the field key of the field you want to sort such as the company name.
I hope this helps 🙂