AZ IRC met on the 27th and narrowed down who they're deciding on to three firms
https://www.azmirror.com/2021/04/27/redistricting-commission-will-give-mapping-consultants-time-to-respond-to-comments-criticism/
The three firms are HaystaqDNA, Taylor English Decision, LLC, and Timmons Group
Per AZMirror, all three firms have faced accusations of partisan bias, Timmons Group and Taylor English Decisions are accused of GOP bias, while HaystaqDNA is accused of Dem bias. In 2012, chair Colleen Mathis chose a firm accused of Dem bias and the result was a map that did largely favor Democrats, our independent this time seems to be truly independent, but of course no one actually is, which firm is picked will tell us a lot about which map we get.
‘Democratic bias’ here meaning ‘doesn’t attempt a GOP gerrymander’