There’s the CO-OP at Castlewood.
I did 2 years on agency there 2017-2019. If you want permanent they recruit fairly regular, money is or was around £35,000, you will be contracted to 40 something hours but usually work a lot less as runs are planned to the minute and very over generous with the time on them. Transport staff are a friendly bunch, other drivers were good and always helpful.
It just depends if you can cope with the work as it’s not everyone’s cup of tea, me personally I really liked it there as I’ve always preferred store type work.
There is also Gist at 29a which I believe is M&S work.
I can name other companies in Mansfield but cant comment on whether they look after staff - Mitchell’s, Taylor’s, Eurocell, Synseal are ones of the top of my head.
Further south you have UK Mail and DPD down at junction 26 near Bulwell.