NZ has some of the world's largest dairy factories.
Example: one site processing 15,000,000 litres/day during the peak of the season.
They tend to run from late July to mid May. They plan large projects that have to be completed in the 6-8 weeks of off-season, demand fixed-price quotes to be submitted in typically 10 days or less, insist on contracts with penalty clauses, provide very minimal specification, and never issue orders earlier than about 1 month prior to factory shut. In spite of all that, there are more than enough bidders competing and they are ruthlessly exploited for their efforts.
I've found a much more convivial niche that also doesn't require working in gum-boots, white cover-alls, and funny hats.